Commit Graph

220 Commits

Author SHA1 Message Date
Lucas Wei
eae5a83bf8 Merge android-4.19-stable (4.19.252) into android-msm-pixel-4.19-lts
Merge 4.19.252 into android-4.19-stable
Linux 4.19.252
    dmaengine: ti: Add missing put_device in ti_dra7_xbar_route_allocate
    dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate
    dmaengine: at_xdma: handle errors of at_xdmac_alloc_desc() correctly
    dmaengine: pl330: Fix lockdep warning about non-static key
  * ida: don't use BUG_ON() for debugging
      lib/idr.c
    misc: rtsx_usb: set return value in rsp_buf alloc err path
  * misc: rtsx_usb: use separate command and response buffers
      include/linux/rtsx_usb.h
  * misc: rtsx_usb: fix use of dma mapped buffer for usb bulk transfer
      include/linux/rtsx_usb.h
    i2c: cadence: Unregister the clk notifier in error path
    selftests: forwarding: fix error message in learning_test
    selftests: forwarding: fix learning_test when h1 supports IFF_UNICAST_FLT
    selftests: forwarding: fix flood_unicast_test when h2 supports IFF_UNICAST_FLT
    ibmvnic: Properly dispose of all skbs during a failover.
    ARM: at91: pm: use proper compatible for sama5d2's rtc
    pinctrl: sunxi: a83t: Fix NAND function name for some pins
    ARM: meson: Fix refcount leak in meson_smp_prepare_cpus
    xfs: remove incorrect ASSERT in xfs_rename
    can: kvaser_usb: kvaser_usb_leaf: fix bittiming limits
    can: kvaser_usb: kvaser_usb_leaf: fix CAN clock frequency regression
    can: kvaser_usb: replace run-time checks with struct kvaser_usb_driver_info
    powerpc/powernv: delay rng platform device creation until later in boot
  * video: of_display_timing.h: include errno.h
      include/video/of_display_timing.h
    fbcon: Disallow setting font bigger than screen size
    iommu/vt-d: Fix PCI bus rescan device hot add
    net: rose: fix UAF bug caused by rose_t0timer_expiry
  * usbnet: fix memory leak in error case
      drivers/net/usb/usbnet.c
    can: gs_usb: gs_usb_open/close(): fix memory leak
    can: grcan: grcan_probe(): remove extra of_node_get()
    can: bcm: use call_rcu() instead of costly synchronize_rcu()
  * mm/slub: add missing TID updates on slab deactivation
      mm/slub.c
  * esp: limit skb_page_frag_refill use to a single page
      include/net/esp.h
      net/ipv4/esp4.c
      net/ipv6/esp6.c
    Merge 4.19.251 into android-4.19-stable
    Merge 4.19.250 into android-4.19-stable
  * ANDROID: revert some RNG function signature changes
      drivers/char/random.c
      include/linux/random.h
  * ANDROID: cpu/hotplug: avoid breaking Android ABI by fusing cpuhp steps
      include/linux/cpuhotplug.h
      kernel/cpu.c
    Merge 4.19.249 into android-4.19-stable
  * UPSTREAM: lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI
      include/crypto/internal/blake2s.h
      lib/crypto/blake2s.c
  * BACKPORT: lib/crypto: add prompts back to crypto libraries
      crypto/Kconfig
      lib/Kconfig
      lib/crypto/Kconfig
  * BACKPORT: lib/crypto: blake2s: include as built-in
      crypto/Kconfig
      drivers/net/Kconfig
      include/crypto/internal/blake2s.h
      lib/crypto/Kconfig
      lib/crypto/Makefile
      lib/crypto/blake2s-generic.c
      lib/crypto/blake2s.c
Linux 4.19.251
    net: usb: qmi_wwan: add Telit 0x1070 composition
    net: usb: qmi_wwan: add Telit 0x1060 composition
    xen/arm: Fix race in RB-tree based P2M accounting
    xen/blkfront: force data bouncing when backend is untrusted
    xen/netfront: force data bouncing when backend is untrusted
    xen/netfront: fix leaking data in shared pages
    xen/blkfront: fix leaking data in shared pages
  * ipv6/sit: fix ipip6_tunnel_get_prl return value
      net/ipv6/sit.c
  * sit: use min
      net/ipv6/sit.c
    net: dsa: bcm_sf2: force pause link settings
    hwmon: (ibmaem) don't call platform_device_del() if platform_device_add() fails
    xen/gntdev: Avoid blocking in unmap_grant_pages()
  * net: tun: avoid disabling NAPI twice
      drivers/net/tun.c
    NFC: nxp-nci: Don't issue a zero length i2c_master_read()
    nfc: nfcmrvl: Fix irq_of_parse_and_map() return value
  * net: bonding: fix use-after-free after 802.3ad slave unbind
      drivers/net/bonding/bond_3ad.c
  * net: bonding: fix possible NULL deref in rlb code
      drivers/net/bonding/bond_alb.c
    netfilter: nft_dynset: restore set element counter when failing to update
    caif_virtio: fix race between virtio_device_ready() and ndo_open()
    net: ipv6: unexport __init-annotated seg6_hmac_net_init()
  * usbnet: fix memory allocation in helpers
      drivers/net/usb/usbnet.c
    RDMA/qedr: Fix reporting QP timeout attribute
  * net: tun: stop NAPI when detaching queues
      drivers/net/tun.c
  * net: tun: unlink NAPI from device on destruction
      drivers/net/tun.c
    selftests/net: pass ipv6_args to udpgso_bench's IPv6 TCP test
    virtio-net: fix race between ndo_open() and virtio_device_ready()
  * net: usb: ax88179_178a: Fix packet receiving
      drivers/net/usb/ax88179_178a.c
    net: rose: fix UAF bugs caused by timer handler
    SUNRPC: Fix READ_PLUS crasher
    s390/archrandom: simplify back to earlier design and initialize earlier
    dm raid: fix KASAN warning in raid5_add_disks
    dm raid: fix accesses beyond end of raid member array
    nvdimm: Fix badblocks clear off-by-one error
  * UPSTREAM: crypto: poly1305 - fix poly1305_core_setkey() declaration
      include/crypto/internal/poly1305.h
      include/crypto/poly1305.h
      lib/crypto/poly1305-donna64.c
      lib/crypto/poly1305.c
  * UPSTREAM: mm: fix misplaced unlock_page in do_wp_page()
      mm/memory.c
  * BACKPORT: mm: do_wp_page() simplification
      mm/memory.c
  * UPSTREAM: mm/ksm: Remove reuse_ksm_page()
      include/linux/ksm.h
  * UPSTREAM: mm: reuse only-pte-mapped KSM page in do_wp_page()
      include/linux/ksm.h
      mm/memory.c
Linux 4.19.250
  * swiotlb: skip swiotlb_bounce when orig_addr is zero
      kernel/dma/swiotlb.c
  * net/sched: move NULL ptr check to qdisc_put() too
      net/sched/sch_generic.c
    net: mscc: ocelot: allow unregistered IP multicast flooding
  * kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
      include/linux/kexec.h
  * fdt: Update CRC check for rng-seed
      drivers/of/fdt.c
    xen: unexport __init-annotated xen_xlate_map_ballooned_pages()
  * drm: remove drm_fb_helper_modinit
      drivers/gpu/drm/drm_crtc_helper_internal.h
      drivers/gpu/drm/drm_kms_helper_common.c
    powerpc/pseries: wire up rng during setup_arch()
  * kbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS (2nd attempt)
      Makefile
  * modpost: fix section mismatch check for exported init/exit sections
      scripts/mod/modpost.c
    ARM: cns3xxx: Fix refcount leak in cns3xxx_init
    ARM: Fix refcount leak in axxia_boot_secondary
    soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe
    ARM: exynos: Fix refcount leak in exynos_map_pmu
    ARM: dts: imx6qdl: correct PU regulator ramp delay
    powerpc/powernv: wire up rng during setup_arch
    powerpc/rtas: Allow ibm,platform-dump RTAS call with null buffer address
    powerpc: Enable execve syscall exit tracepoint
    xtensa: Fix refcount leak bug in time.c
    xtensa: xtfpga: Fix refcount leak bug in setup
    iio: adc: axp288: Override TS pin bias current for some models
    iio: trigger: sysfs: fix use-after-free on remove
    iio: gyro: mpu3050: Fix the error handling in mpu3050_power_up()
    iio: accel: mma8452: ignore the return value of reset operation
    iio:accel:bma180: rearrange iio trigger get and register
    iio:chemical:ccs811: rearrange iio trigger get and register
    usb: chipidea: udc: check request status before setting device address
  * xhci: turn off port power in shutdown
      drivers/usb/host/xhci-hub.c
      drivers/usb/host/xhci.c
      drivers/usb/host/xhci.h
    iio: adc: vf610: fix conversion mode sysfs node name
    gpio: winbond: Fix error code in winbond_gpio_get()
    virtio_net: fix xdp_rxq_info bug after suspend/resume
    igb: Make DMA faster when CPU is active on the PCIe link
    afs: Fix dynamic root getattr
    MIPS: Remove repetitive increase irq_err_count
    x86/xen: Remove undefined behavior in setup_features()
    erspan: do not assume transport header is always set
  * net/sched: sch_netem: Fix arithmetic in netem_dump() for 32-bit platforms
      net/sched/sch_netem.c
  * bonding: ARP monitor spams NETDEV_NOTIFY_PEERS notifiers
      drivers/net/bonding/bond_main.c
    USB: serial: option: add Quectel RM500K module support
    USB: serial: option: add Quectel EM05-G modem
    USB: serial: option: add Telit LE910Cx 0x1250 composition
  * random: quiet urandom warning ratelimit suppression message
      drivers/char/random.c
      include/linux/ratelimit.h
    dm era: commit metadata in postsuspend after worker stops
  * ata: libata: add qc->flags in ata_qc_complete_template tracepoint
      include/trace/events/libata.h
    ALSA: hda/realtek: Add quirk for Clevo PD70PNT
    ALSA: hda/conexant: Fix missing beep setup
    ALSA: hda/via: Fix missing beep setup
  * random: schedule mix_interrupt_randomness() less often
      drivers/char/random.c
    vt: drop old FONT ioctls
Linux 4.19.249
  * Revert "hwmon: Make chip parameter for with_info API mandatory"
      drivers/hwmon/hwmon.c
  * tcp: drop the hash_32() part from the index calculation
      net/ipv4/inet_hashtables.c
  * tcp: increase source port perturb table to 2^16
      net/ipv4/inet_hashtables.c
  * tcp: dynamically allocate the perturb table used by source ports
      net/ipv4/inet_hashtables.c
  * tcp: add small random increments to the source port
      net/ipv4/inet_hashtables.c
  * tcp: use different parts of the port_offset for index and offset
      net/ipv4/inet_hashtables.c
  * tcp: add some entropy in __inet_hash_connect()
      net/ipv4/inet_hashtables.c
    xprtrdma: fix incorrect header size calculations
  * usb: gadget: u_ether: fix regression in setting fixed MAC address
      drivers/usb/gadget/function/u_ether.c
    s390/mm: use non-quiescing sske for KVM switch to keyed guest
    powerpc/mm: Switch obsolete dssall to .long
    RISC-V: fix barrier() use in <vdso/processor.h>
    net: openvswitch: fix leak of nested actions
    net: openvswitch: fix misuse of the cached connection on tuple changes
    virtio-pci: Remove wrong address verification in vp_del_vqs()
  * ext4: add reserved GDT blocks check
      fs/ext4/resize.c
  * ext4: make variable "count" signed
      fs/ext4/namei.c
  * ext4: fix bug_on ext4_mb_use_inode_pa
      fs/ext4/mballoc.c
    serial: 8250: Store to lsr_save_flags after lsr read
    usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe
    usb: dwc2: Fix memory leak in dwc2_hcd_init
    USB: serial: io_ti: add Agilent E5805A support
    USB: serial: option: add support for Cinterion MV31 with new baseline
    comedi: vmk80xx: fix expression for tx buffer size
  * irqchip/gic-v3: Fix refcount leak in gic_populate_ppi_partitions
      drivers/irqchip/irq-gic-v3.c
    irqchip/gic/realview: Fix refcount leak in realview_gic_of_init
    faddr2line: Fix overlapping text section failures, the sequel
    certs/blacklist_hashes.c: fix const confusion in certs blacklist
    arm64: ftrace: fix branch range checks
    net: bgmac: Fix an erroneous kfree() in bgmac_remove()
    mlxsw: spectrum_cnt: Reorder counter pools
    misc: atmel-ssc: Fix IRQ check in ssc_probe
    tty: goldfish: Fix free_irq() on remove
    i40e: Fix call trace in setup_tx_descriptors
    i40e: Fix adding ADQ filter to TC0
    pNFS: Don't keep retrying if the server replied NFS4ERR_LAYOUTUNAVAILABLE
  * random: credit cpu and bootloader seeds by default
      drivers/char/Kconfig
    net: ethernet: mtk_eth_soc: fix misuse of mem alloc interface netdev[napi]_alloc_frag
  * ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
      net/l2tp/l2tp_ip6.c
    nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred
    virtio-mmio: fix missing put_device() when vm_cmdline_parent registration failed
    scsi: pmcraid: Fix missing resource cleanup in error case
    scsi: ipr: Fix missing/incorrect resource cleanup in error case
    scsi: lpfc: Fix port stuck in bypassed state after LIP in PT2PT topology
    scsi: vmw_pvscsi: Expand vcpuHint to 16 bits
  * ASoC: wm_adsp: Fix event generation for wm_adsp_fw_put()
      sound/soc/codecs/wm_adsp.c
    ASoC: es8328: Fix event generation for deemphasis control
    ASoC: wm8962: Fix suspend while playing music
    ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()
    ASoC: cs42l56: Correct typo in minimum level for SX volume controls
    ASoC: cs42l52: Correct TLV for Bypass Volume
    ASoC: cs53l30: Correct number of volume levels on SX controls
    ASoC: cs42l52: Fix TLV scales for mixer controls
    powerpc/kasan: Silence KASAN warnings in __get_wchan()
  * random: account for arch randomness in bits
      drivers/char/random.c
  * random: mark bootloader randomness code as __init
      drivers/char/random.c
      include/linux/random.h
  * random: avoid checking crng_ready() twice in random_init()
      drivers/char/random.c
  * crypto: drbg - make reseeding from get_random_bytes() synchronous
      crypto/drbg.c
      drivers/char/random.c
      include/crypto/drbg.h
  * crypto: drbg - always try to free Jitter RNG instance
      crypto/drbg.c
  * crypto: drbg - move dynamic ->reseed_threshold adjustments to __drbg_seed()
      crypto/drbg.c
  * crypto: drbg - track whether DRBG was seeded with !rng_is_initialized()
      crypto/drbg.c
      include/crypto/drbg.h
  * crypto: drbg - prepare for more fine-grained tracking of seeding state
      crypto/drbg.c
      include/crypto/drbg.h
  * crypto: drbg - always seeded with SP800-90B compliant noise source
      crypto/drbg.c
      include/crypto/drbg.h
  * crypto: drbg - add FIPS 140-2 CTRNG for noise source
      crypto/drbg.c
      include/crypto/drbg.h
  * Revert "random: use static branch for crng_ready()"
      drivers/char/random.c
  * random: check for signals after page of pool writes
      drivers/char/random.c
  * random: wire up fops->splice_{read,write}_iter()
      drivers/char/random.c
  * random: convert to using fops->write_iter()
      drivers/char/random.c
  * random: move randomize_page() into mm where it belongs
      drivers/char/random.c
      include/linux/mm.h
      include/linux/random.h
      mm/util.c
  * random: move initialization functions out of hot pages
      drivers/char/random.c
  * random: use proper return types on get_random_{int,long}_wait()
      drivers/char/random.c
      include/linux/random.h
  * random: remove extern from functions in header
      include/linux/random.h
  * random: use static branch for crng_ready()
      drivers/char/random.c
  * random: credit architectural init the exact amount
      drivers/char/random.c
  * random: handle latent entropy and command line from random_init()
      drivers/char/random.c
      include/linux/random.h
      init/main.c
  * random: use proper jiffies comparison macro
      drivers/char/random.c
  * random: remove ratelimiting for in-kernel unseeded randomness
      drivers/char/random.c
      lib/Kconfig.debug
  * random: avoid initializing twice in credit race
      drivers/char/random.c
  * random: use symbolic constants for crng_init states
      drivers/char/random.c
  * siphash: use one source of truth for siphash permutations
      drivers/char/random.c
      include/linux/prandom.h
      include/linux/siphash.h
      lib/siphash.c
  * random: help compiler out with fast_mix() by using simpler arguments
      drivers/char/random.c
  * random: do not use input pool from hard IRQs
      drivers/char/random.c
  * random: order timer entropy functions below interrupt functions
      drivers/char/random.c
  * random: do not pretend to handle premature next security model
      drivers/char/random.c
  * random: do not use batches when !crng_ready()
      drivers/char/random.c
  * random: insist on random_get_entropy() existing in order to simplify
      drivers/char/random.c
    xtensa: use fallback for random_get_entropy() instead of zero
    sparc: use fallback for random_get_entropy() instead of zero
    um: use fallback for random_get_entropy() instead of zero
    x86/tsc: Use fallback for random_get_entropy() instead of zero
    nios2: use fallback for random_get_entropy() instead of zero
    arm: use fallback for random_get_entropy() instead of zero
    mips: use fallback for random_get_entropy() instead of just c0 random
    m68k: use fallback for random_get_entropy() instead of zero
  * timekeeping: Add raw clock fallback for random_get_entropy()
      include/linux/timex.h
      kernel/time/timekeeping.c
    powerpc: define get_cycles macro for arch-override
    alpha: define get_cycles macro for arch-override
    parisc: define get_cycles macro for arch-override
    s390: define get_cycles macro for arch-override
    ia64: define get_cycles macro for arch-override
  * init: call time_init() before rand_initialize()
      init/main.c
    random: fix sysctl documentation nits
  * random: document crng_fast_key_erasure() destination possibility
      drivers/char/random.c
  * random: make random_get_entropy() return an unsigned long
      drivers/char/random.c
      include/linux/timex.h
  * random: check for signals every PAGE_SIZE chunk of /dev/[u]random
      drivers/char/random.c
  * random: check for signal_pending() outside of need_resched() check
      drivers/char/random.c
  * random: do not allow user to keep crng key around on stack
      drivers/char/random.c
  * random: do not split fast init input in add_hwgenerator_randomness()
      drivers/char/random.c
  * random: mix build-time latent entropy into pool at init
      drivers/char/random.c
  * random: re-add removed comment about get_random_{u32,u64} reseeding
      drivers/char/random.c
  * random: treat bootloader trust toggle the same way as cpu trust toggle
      drivers/char/Kconfig
      drivers/char/random.c
  * random: skip fast_init if hwrng provides large chunk of entropy
      drivers/char/random.c
  * random: check for signal and try earlier when generating entropy
      drivers/char/random.c
  * random: reseed more often immediately after booting
      drivers/char/random.c
  * random: make consistent usage of crng_ready()
      drivers/char/random.c
  * random: use SipHash as interrupt entropy accumulator
      drivers/char/random.c
  * random: replace custom notifier chain with standard one
      crypto/drbg.c
      drivers/char/random.c
      include/crypto/drbg.h
      include/linux/random.h
      lib/random32.c
      lib/vsprintf.c
  * random: don't let 644 read-only sysctls be written to
      drivers/char/random.c
  * random: give sysctl_random_min_urandom_seed a more sensible value
      drivers/char/random.c
  * random: do crng pre-init loading in worker rather than irq
      drivers/char/random.c
  * random: unify cycles_t and jiffies usage and types
      drivers/char/random.c
  * random: cleanup UUID handling
      drivers/char/random.c
  * random: only wake up writers after zap if threshold was passed
      drivers/char/random.c
  * random: round-robin registers as ulong, not u32
      drivers/char/random.c
  * random: clear fast pool, crng, and batches in cpuhp bring up
      drivers/char/random.c
      include/linux/cpuhotplug.h
      include/linux/random.h
      kernel/cpu.c
  * random: pull add_hwgenerator_randomness() declaration into random.h
      drivers/char/hw_random/core.c
      include/linux/hw_random.h
      include/linux/random.h
  * random: check for crng_init == 0 in add_device_randomness()
      drivers/char/random.c
  * random: unify early init crng load accounting
      drivers/char/random.c
  * random: do not take pool spinlock at boot
      drivers/char/random.c
  * random: defer fast pool mixing to worker
      drivers/char/random.c
  * random: rewrite header introductory comment
      drivers/char/random.c
  * random: group sysctl functions
      drivers/char/random.c
  * random: group userspace read/write functions
      drivers/char/random.c
  * random: group entropy collection functions
      drivers/char/random.c
  * random: group entropy extraction functions
      drivers/char/random.c
  * random: group initialization wait functions
      drivers/char/random.c
  * random: remove whitespace and reorder includes
      drivers/char/random.c
  * random: remove useless header comment
      include/linux/random.h
  * random: introduce drain_entropy() helper to declutter crng_reseed()
      drivers/char/random.c
  * random: deobfuscate irq u32/u64 contributions
      drivers/char/random.c
  * random: add proper SPDX header
      drivers/char/random.c
  * random: remove unused tracepoints
      drivers/char/random.c
      lib/random32.c
  * random: remove ifdef'd out interrupt bench
      drivers/char/random.c
  * random: tie batched entropy generation to base_crng generation
      drivers/char/random.c
  * random: zero buffer after reading entropy from userspace
      drivers/char/random.c
  * random: remove outdated INT_MAX >> 6 check in urandom_read()
      drivers/char/random.c
  * random: use hash function for crng_slow_load()
      drivers/char/random.c
      include/linux/hw_random.h
      include/linux/random.h
  * random: absorb fast pool into input pool after fast load
      drivers/char/random.c
  * random: do not xor RDRAND when writing into /dev/random
      drivers/char/random.c
  * random: ensure early RDSEED goes through mixer on init
      drivers/char/random.c
  * random: inline leaves of rand_initialize()
      drivers/char/random.c
  * random: use RDSEED instead of RDRAND in entropy extraction
      drivers/char/random.c
  * random: fix locking in crng_fast_load()
      drivers/char/random.c
  * random: remove batched entropy locking
      drivers/char/random.c
  * random: remove use_input_pool parameter from crng_reseed()
      drivers/char/random.c
  * random: make credit_entropy_bits() always safe
      drivers/char/random.c
  * random: always wake up entropy writers after extraction
      drivers/char/random.c
  * random: use linear min-entropy accumulation crediting
      drivers/char/random.c
  * random: simplify entropy debiting
      drivers/char/random.c
  * random: use computational hash for entropy extraction
      drivers/char/random.c
  * random: only call crng_finalize_init() for primary_crng
      drivers/char/random.c
  * random: access primary_pool directly rather than through pointer
      drivers/char/random.c
  * random: continually use hwgenerator randomness
      drivers/char/random.c
  * random: simplify arithmetic function flow in account()
      drivers/char/random.c
  * random: access input_pool_data directly rather than through pointer
      drivers/char/random.c
  * random: cleanup fractional entropy shift constants
      drivers/char/random.c
  * random: prepend remaining pool constants with POOL_
      drivers/char/random.c
  * random: de-duplicate INPUT_POOL constants
      drivers/char/random.c
  * random: remove unused OUTPUT_POOL constants
      drivers/char/random.c
  * random: rather than entropy_store abstraction, use global
      drivers/char/random.c
  * random: remove unused extract_entropy() reserved argument
      drivers/char/random.c
  * random: remove incomplete last_data logic
      drivers/char/random.c
  * random: cleanup integer types
      drivers/char/random.c
  * random: cleanup poolinfo abstraction
      drivers/char/random.c
  * random: fix typo in comments
      drivers/char/random.c
  * random: don't reset crng_init_cnt on urandom_read()
      drivers/char/random.c
  * random: avoid superfluous call to RDRAND in CRNG extraction
      drivers/char/random.c
  * random: early initialization of ChaCha constants
      drivers/char/random.c
  * random: initialize ChaCha20 constants with correct endianness
      drivers/char/random.c
  * random: use IS_ENABLED(CONFIG_NUMA) instead of ifdefs
      drivers/char/random.c
  * random: harmonize "crng init done" messages
      drivers/char/random.c
  * random: mix bootloader randomness into pool
      drivers/char/random.c
  * random: do not re-init if crng_reseed completes before primary init
      drivers/char/random.c
  * random: do not sign extend bytes for rotation when mixing
      drivers/char/random.c
  * random: use BLAKE2s instead of SHA1 in extraction
      drivers/char/random.c
  * random: remove unused irq_flags argument from add_interrupt_randomness()
      drivers/char/random.c
      include/linux/random.h
      kernel/irq/handle.c
  * random: document add_hwgenerator_randomness() with other input functions
      drivers/char/random.c
  * crypto: blake2s - adjust include guard naming
      include/crypto/blake2s.h
      include/crypto/internal/blake2s.h
  * crypto: blake2s - include <linux/bug.h> instead of <asm/bug.h>
      include/crypto/blake2s.h
    MAINTAINERS: co-maintain random.c
  * random: remove dead code left over from blocking pool
      drivers/char/random.c
  * random: avoid arch_get_random_seed_long() when collecting IRQ randomness
      drivers/char/random.c
  * random: add arch_get_random_*long_early()
      drivers/char/random.c
      include/linux/random.h
    powerpc: Use bool in archrandom.h
  * linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check
      include/linux/random.h
  * linux/random.h: Use false with bool
      include/linux/random.h
  * linux/random.h: Remove arch_has_random, arch_has_random_seed
      include/linux/random.h
    s390: Remove arch_has_random, arch_has_random_seed
    powerpc: Remove arch_has_random, arch_has_random_seed
    x86: Remove arch_has_random, arch_has_random_seed
  * random: avoid warnings for !CONFIG_NUMA builds
      drivers/char/random.c
  * random: split primary/secondary crng init paths
      drivers/char/random.c
  * random: remove some dead code of poolinfo
      drivers/char/random.c
  * random: fix typo in add_timer_randomness()
      drivers/char/random.c
  * random: Add and use pr_fmt()
      drivers/char/random.c
  * random: convert to ENTROPY_BITS for better code readability
      drivers/char/random.c
  * random: remove unnecessary unlikely()
      drivers/char/random.c
  * random: remove kernel.random.read_wakeup_threshold
      drivers/char/random.c
  * random: delete code to pull data into pools
      drivers/char/random.c
  * random: remove the blocking pool
      drivers/char/random.c
  * random: fix crash on multiple early calls to add_bootloader_randomness()
      drivers/char/random.c
  * char/random: silence a lockdep splat with printk()
      drivers/char/random.c
  * random: make /dev/random be almost like /dev/urandom
      drivers/char/random.c
  * random: ignore GRND_RANDOM in getentropy(2)
      drivers/char/random.c
      include/uapi/linux/random.h
  * random: add GRND_INSECURE to return best-effort non-cryptographic bytes
      drivers/char/random.c
      include/uapi/linux/random.h
  * random: Add a urandom_read_nowait() for random APIs that don't warn
      drivers/char/random.c
  * random: Don't wake crng_init_wait when crng_init == 1
      drivers/char/random.c
  * lib/crypto: sha1: re-roll loops to reduce code size
      lib/sha1.c
  * lib/crypto: blake2s: move hmac construction into wireguard
      include/crypto/blake2s.h
      lib/crypto/blake2s.c
  * crypto: blake2s - generic C library implementation and selftest
      include/crypto/blake2s.h
      include/crypto/internal/blake2s.h
      lib/Makefile
      lib/crypto/Makefile
      lib/crypto/blake2s-generic.c
      lib/crypto/blake2s.c
  * Revert "hwrng: core - Freeze khwrng thread during suspend"
      drivers/char/random.c
  * char/random: Add a newline at the end of the file
      drivers/char/random.c
  * random: Use wait_event_freezable() in add_hwgenerator_randomness()
      drivers/char/random.c
  * fdt: add support for rng-seed
      drivers/char/Kconfig
      drivers/char/random.c
      drivers/of/fdt.c
      include/linux/random.h
  * random: Support freezable kthreads in add_hwgenerator_randomness()
      drivers/char/random.c
  * random: fix soft lockup when trying to read from an uninitialized blocking pool
      drivers/char/random.c
  * latent_entropy: avoid build error when plugin cflags are not set
      include/linux/random.h
  * random: document get_random_int() family
      drivers/char/random.c
  * random: move rand_initialize() earlier
      drivers/char/random.c
      include/linux/random.h
      init/main.c
  * random: only read from /dev/random after its pool has received 128 bits
      drivers/char/random.c
  * drivers/char/random.c: make primary_crng static
      drivers/char/random.c
  * drivers/char/random.c: remove unused stuct poolinfo::poolbits
      drivers/char/random.c
  * drivers/char/random.c: constify poolinfo_table
      drivers/char/random.c
    9p: missing chunk of "fs/9p: Don't update file type when updating file attributes"

Bug: 240880948
Change-Id: I46de87f5e1ff2146dbc394d88275d609ee871bc1
Signed-off-by: Lucas Wei <lucaswei@google.com>
2022-08-09 10:46:08 +08:00
Greg Kroah-Hartman
25e813ddc6 Merge 4.19.249 into android-4.19-stable
Changes in 4.19.249
	9p: missing chunk of "fs/9p: Don't update file type when updating file attributes"
	drivers/char/random.c: constify poolinfo_table
	drivers/char/random.c: remove unused stuct poolinfo::poolbits
	drivers/char/random.c: make primary_crng static
	random: only read from /dev/random after its pool has received 128 bits
	random: move rand_initialize() earlier
	random: document get_random_int() family
	latent_entropy: avoid build error when plugin cflags are not set
	random: fix soft lockup when trying to read from an uninitialized blocking pool
	random: Support freezable kthreads in add_hwgenerator_randomness()
	fdt: add support for rng-seed
	random: Use wait_event_freezable() in add_hwgenerator_randomness()
	char/random: Add a newline at the end of the file
	Revert "hwrng: core - Freeze khwrng thread during suspend"
	crypto: blake2s - generic C library implementation and selftest
	lib/crypto: blake2s: move hmac construction into wireguard
	lib/crypto: sha1: re-roll loops to reduce code size
	random: Don't wake crng_init_wait when crng_init == 1
	random: Add a urandom_read_nowait() for random APIs that don't warn
	random: add GRND_INSECURE to return best-effort non-cryptographic bytes
	random: ignore GRND_RANDOM in getentropy(2)
	random: make /dev/random be almost like /dev/urandom
	char/random: silence a lockdep splat with printk()
	random: fix crash on multiple early calls to add_bootloader_randomness()
	random: remove the blocking pool
	random: delete code to pull data into pools
	random: remove kernel.random.read_wakeup_threshold
	random: remove unnecessary unlikely()
	random: convert to ENTROPY_BITS for better code readability
	random: Add and use pr_fmt()
	random: fix typo in add_timer_randomness()
	random: remove some dead code of poolinfo
	random: split primary/secondary crng init paths
	random: avoid warnings for !CONFIG_NUMA builds
	x86: Remove arch_has_random, arch_has_random_seed
	powerpc: Remove arch_has_random, arch_has_random_seed
	s390: Remove arch_has_random, arch_has_random_seed
	linux/random.h: Remove arch_has_random, arch_has_random_seed
	linux/random.h: Use false with bool
	linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check
	powerpc: Use bool in archrandom.h
	random: add arch_get_random_*long_early()
	random: avoid arch_get_random_seed_long() when collecting IRQ randomness
	random: remove dead code left over from blocking pool
	MAINTAINERS: co-maintain random.c
	crypto: blake2s - include <linux/bug.h> instead of <asm/bug.h>
	crypto: blake2s - adjust include guard naming
	random: document add_hwgenerator_randomness() with other input functions
	random: remove unused irq_flags argument from add_interrupt_randomness()
	random: use BLAKE2s instead of SHA1 in extraction
	random: do not sign extend bytes for rotation when mixing
	random: do not re-init if crng_reseed completes before primary init
	random: mix bootloader randomness into pool
	random: harmonize "crng init done" messages
	random: use IS_ENABLED(CONFIG_NUMA) instead of ifdefs
	random: initialize ChaCha20 constants with correct endianness
	random: early initialization of ChaCha constants
	random: avoid superfluous call to RDRAND in CRNG extraction
	random: don't reset crng_init_cnt on urandom_read()
	random: fix typo in comments
	random: cleanup poolinfo abstraction
	random: cleanup integer types
	random: remove incomplete last_data logic
	random: remove unused extract_entropy() reserved argument
	random: rather than entropy_store abstraction, use global
	random: remove unused OUTPUT_POOL constants
	random: de-duplicate INPUT_POOL constants
	random: prepend remaining pool constants with POOL_
	random: cleanup fractional entropy shift constants
	random: access input_pool_data directly rather than through pointer
	random: simplify arithmetic function flow in account()
	random: continually use hwgenerator randomness
	random: access primary_pool directly rather than through pointer
	random: only call crng_finalize_init() for primary_crng
	random: use computational hash for entropy extraction
	random: simplify entropy debiting
	random: use linear min-entropy accumulation crediting
	random: always wake up entropy writers after extraction
	random: make credit_entropy_bits() always safe
	random: remove use_input_pool parameter from crng_reseed()
	random: remove batched entropy locking
	random: fix locking in crng_fast_load()
	random: use RDSEED instead of RDRAND in entropy extraction
	random: inline leaves of rand_initialize()
	random: ensure early RDSEED goes through mixer on init
	random: do not xor RDRAND when writing into /dev/random
	random: absorb fast pool into input pool after fast load
	random: use hash function for crng_slow_load()
	random: remove outdated INT_MAX >> 6 check in urandom_read()
	random: zero buffer after reading entropy from userspace
	random: tie batched entropy generation to base_crng generation
	random: remove ifdef'd out interrupt bench
	random: remove unused tracepoints
	random: add proper SPDX header
	random: deobfuscate irq u32/u64 contributions
	random: introduce drain_entropy() helper to declutter crng_reseed()
	random: remove useless header comment
	random: remove whitespace and reorder includes
	random: group initialization wait functions
	random: group entropy extraction functions
	random: group entropy collection functions
	random: group userspace read/write functions
	random: group sysctl functions
	random: rewrite header introductory comment
	random: defer fast pool mixing to worker
	random: do not take pool spinlock at boot
	random: unify early init crng load accounting
	random: check for crng_init == 0 in add_device_randomness()
	random: pull add_hwgenerator_randomness() declaration into random.h
	random: clear fast pool, crng, and batches in cpuhp bring up
	random: round-robin registers as ulong, not u32
	random: only wake up writers after zap if threshold was passed
	random: cleanup UUID handling
	random: unify cycles_t and jiffies usage and types
	random: do crng pre-init loading in worker rather than irq
	random: give sysctl_random_min_urandom_seed a more sensible value
	random: don't let 644 read-only sysctls be written to
	random: replace custom notifier chain with standard one
	random: use SipHash as interrupt entropy accumulator
	random: make consistent usage of crng_ready()
	random: reseed more often immediately after booting
	random: check for signal and try earlier when generating entropy
	random: skip fast_init if hwrng provides large chunk of entropy
	random: treat bootloader trust toggle the same way as cpu trust toggle
	random: re-add removed comment about get_random_{u32,u64} reseeding
	random: mix build-time latent entropy into pool at init
	random: do not split fast init input in add_hwgenerator_randomness()
	random: do not allow user to keep crng key around on stack
	random: check for signal_pending() outside of need_resched() check
	random: check for signals every PAGE_SIZE chunk of /dev/[u]random
	random: make random_get_entropy() return an unsigned long
	random: document crng_fast_key_erasure() destination possibility
	random: fix sysctl documentation nits
	init: call time_init() before rand_initialize()
	ia64: define get_cycles macro for arch-override
	s390: define get_cycles macro for arch-override
	parisc: define get_cycles macro for arch-override
	alpha: define get_cycles macro for arch-override
	powerpc: define get_cycles macro for arch-override
	timekeeping: Add raw clock fallback for random_get_entropy()
	m68k: use fallback for random_get_entropy() instead of zero
	mips: use fallback for random_get_entropy() instead of just c0 random
	arm: use fallback for random_get_entropy() instead of zero
	nios2: use fallback for random_get_entropy() instead of zero
	x86/tsc: Use fallback for random_get_entropy() instead of zero
	um: use fallback for random_get_entropy() instead of zero
	sparc: use fallback for random_get_entropy() instead of zero
	xtensa: use fallback for random_get_entropy() instead of zero
	random: insist on random_get_entropy() existing in order to simplify
	random: do not use batches when !crng_ready()
	random: do not pretend to handle premature next security model
	random: order timer entropy functions below interrupt functions
	random: do not use input pool from hard IRQs
	random: help compiler out with fast_mix() by using simpler arguments
	siphash: use one source of truth for siphash permutations
	random: use symbolic constants for crng_init states
	random: avoid initializing twice in credit race
	random: remove ratelimiting for in-kernel unseeded randomness
	random: use proper jiffies comparison macro
	random: handle latent entropy and command line from random_init()
	random: credit architectural init the exact amount
	random: use static branch for crng_ready()
	random: remove extern from functions in header
	random: use proper return types on get_random_{int,long}_wait()
	random: move initialization functions out of hot pages
	random: move randomize_page() into mm where it belongs
	random: convert to using fops->write_iter()
	random: wire up fops->splice_{read,write}_iter()
	random: check for signals after page of pool writes
	Revert "random: use static branch for crng_ready()"
	crypto: drbg - add FIPS 140-2 CTRNG for noise source
	crypto: drbg - always seeded with SP800-90B compliant noise source
	crypto: drbg - prepare for more fine-grained tracking of seeding state
	crypto: drbg - track whether DRBG was seeded with !rng_is_initialized()
	crypto: drbg - move dynamic ->reseed_threshold adjustments to __drbg_seed()
	crypto: drbg - always try to free Jitter RNG instance
	crypto: drbg - make reseeding from get_random_bytes() synchronous
	random: avoid checking crng_ready() twice in random_init()
	random: mark bootloader randomness code as __init
	random: account for arch randomness in bits
	powerpc/kasan: Silence KASAN warnings in __get_wchan()
	ASoC: cs42l52: Fix TLV scales for mixer controls
	ASoC: cs53l30: Correct number of volume levels on SX controls
	ASoC: cs42l52: Correct TLV for Bypass Volume
	ASoC: cs42l56: Correct typo in minimum level for SX volume controls
	ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()
	ASoC: wm8962: Fix suspend while playing music
	ASoC: es8328: Fix event generation for deemphasis control
	ASoC: wm_adsp: Fix event generation for wm_adsp_fw_put()
	scsi: vmw_pvscsi: Expand vcpuHint to 16 bits
	scsi: lpfc: Fix port stuck in bypassed state after LIP in PT2PT topology
	scsi: ipr: Fix missing/incorrect resource cleanup in error case
	scsi: pmcraid: Fix missing resource cleanup in error case
	virtio-mmio: fix missing put_device() when vm_cmdline_parent registration failed
	nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred
	ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
	net: ethernet: mtk_eth_soc: fix misuse of mem alloc interface netdev[napi]_alloc_frag
	random: credit cpu and bootloader seeds by default
	pNFS: Don't keep retrying if the server replied NFS4ERR_LAYOUTUNAVAILABLE
	i40e: Fix adding ADQ filter to TC0
	i40e: Fix call trace in setup_tx_descriptors
	tty: goldfish: Fix free_irq() on remove
	misc: atmel-ssc: Fix IRQ check in ssc_probe
	mlxsw: spectrum_cnt: Reorder counter pools
	net: bgmac: Fix an erroneous kfree() in bgmac_remove()
	arm64: ftrace: fix branch range checks
	certs/blacklist_hashes.c: fix const confusion in certs blacklist
	faddr2line: Fix overlapping text section failures, the sequel
	irqchip/gic/realview: Fix refcount leak in realview_gic_of_init
	irqchip/gic-v3: Fix refcount leak in gic_populate_ppi_partitions
	comedi: vmk80xx: fix expression for tx buffer size
	USB: serial: option: add support for Cinterion MV31 with new baseline
	USB: serial: io_ti: add Agilent E5805A support
	usb: dwc2: Fix memory leak in dwc2_hcd_init
	usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe
	serial: 8250: Store to lsr_save_flags after lsr read
	ext4: fix bug_on ext4_mb_use_inode_pa
	ext4: make variable "count" signed
	ext4: add reserved GDT blocks check
	virtio-pci: Remove wrong address verification in vp_del_vqs()
	net: openvswitch: fix misuse of the cached connection on tuple changes
	net: openvswitch: fix leak of nested actions
	RISC-V: fix barrier() use in <vdso/processor.h>
	powerpc/mm: Switch obsolete dssall to .long
	s390/mm: use non-quiescing sske for KVM switch to keyed guest
	usb: gadget: u_ether: fix regression in setting fixed MAC address
	xprtrdma: fix incorrect header size calculations
	tcp: add some entropy in __inet_hash_connect()
	tcp: use different parts of the port_offset for index and offset
	tcp: add small random increments to the source port
	tcp: dynamically allocate the perturb table used by source ports
	tcp: increase source port perturb table to 2^16
	tcp: drop the hash_32() part from the index calculation
	Revert "hwmon: Make chip parameter for with_info API mandatory"
	Linux 4.19.249

Merge resolution notes:
  - Dropped the changes that added an LTS-specific backport of the
    blake2s library, since this branch already has a newer version of
    the blake2s library.

  - Added CHACHA20_KEY_SIZE and CHACHA20_BLOCK_SIZE constants to
    chacha.h, to minimize changes from the 4.19 LTS version of random.c

  - Retain a fix to the rng-seed support in drivers/of/fdt.c that this
    branch and 4.19.250 have, but 4.19.249 doesn't have.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: If9d9e3168f0976f61ae1ab9b36c063558a7f6ebf
2022-07-07 21:13:57 +02:00
Jason A. Donenfeld
705ecf13e5 random: replace custom notifier chain with standard one
commit 5acd35487dc911541672b3ffc322851769c32a56 upstream.

We previously rolled our own randomness readiness notifier, which only
has two users in the whole kernel. Replace this with a more standard
atomic notifier block that serves the same purpose with less code. Also
unexport the symbols, because no modules use it, only unconditional
builtins. The only drawback is that it's possible for a notification
handler returning the "stop" code to prevent further processing, but
given that there are only two users, and that we're unexporting this
anyway, that doesn't seem like a significant drawback for the
simplification we receive here.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
[Jason: for stable, also backported to crypto/drbg.c, not unexporting.]
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-25 11:49:08 +02:00
Lucas Wei
b2bed6615a Merge android-4.19-stable (4.19.202) into android-msm-pixel-4.19-lts
Merge 4.19.202 into android-4.19-stable
Linux 4.19.202
    spi: mediatek: Fix fifo transfer
  * padata: add separate cpuhp node for CPUHP_PADATA_DEAD
      include/linux/padata.h
  * padata: validate cpumask without removed CPU during offline
      include/linux/cpuhotplug.h
    Revert "watchdog: iTCO_wdt: Account for rebooting on second timeout"
    firmware: arm_scmi: Ensure drivers provide a probe function
    drm/i915: Ensure intel_engine_init_execlist() builds with Clang
  * Revert "Bluetooth: Shutdown controller after workqueues are flushed or cancelled"
      net/bluetooth/hci_core.c
  * bdi: add a ->dev_name field to struct backing_dev_info
      include/linux/backing-dev-defs.h
      mm/backing-dev.c
  * bdi: use bdi_dev_name() to get device name
      block/blk-cgroup.c
      include/trace/events/wbt.h
  * bdi: move bdi_dev_name out of line
      include/linux/backing-dev.h
      mm/backing-dev.c
  * net: Fix zero-copy head len calculation.
      net/core/skbuff.c
    qed: fix possible unpaired spin_{un}lock_bh in _qed_mcp_cmd_and_union()
  * r8152: Fix potential PM refcount imbalance
      drivers/net/usb/r8152.c
    ASoC: tlv320aic31xx: fix reversed bclk/wclk master bits
  * regulator: rt5033: Fix n_voltages settings for BUCK and LDO
      include/linux/mfd/rt5033-private.h
    btrfs: mark compressed range uptodate only if all bio succeed
    Merge 4.19.201 into android-4.19-stable
Linux 4.19.201
    i40e: Add additional info to PHY type error
    Revert "perf map: Fix dso->nsinfo refcounting"
    powerpc/pseries: Fix regression while building external modules
    can: hi311x: fix a signedness bug in hi3110_cmd()
    sis900: Fix missing pci_disable_device() in probe and remove
    tulip: windbond-840: Fix missing pci_disable_device() in probe and remove
  * sctp: fix return value check in __sctp_rcv_asconf_lookup
      net/sctp/input.c
    net/mlx5: Fix flow table chaining
  * net: llc: fix skb_over_panic
      include/net/llc_pdu.h
    mlx4: Fix missing error code in mlx4_load_one()
  * tipc: fix sleeping in tipc accept routine
      net/tipc/socket.c
    i40e: Fix log TC creation failure when max num of queues is exceeded
    i40e: Fix logic of disabling queues
    netfilter: nft_nat: allow to specify layer 4 protocol NAT only
  * netfilter: conntrack: adjust stop timestamp to real expiry value
      net/netfilter/nf_conntrack_core.c
  * cfg80211: Fix possible memory leak in function cfg80211_bss_update
      net/wireless/scan.c
    nfc: nfcsim: fix use after free during module unload
    NIU: fix incorrect error return, missed in previous revert
    can: esd_usb2: fix memory leak
    can: ems_usb: fix memory leak
    can: usb_8dev: fix memory leak
    can: mcba_usb_start(): add missing urb->transfer_dma initialization
    can: raw: raw_setsockopt(): fix raw_rcv panic for sock UAF
    ocfs2: issue zeroout to EOF blocks
    ocfs2: fix zero out valid data
    x86/kvm: fix vcpu-id indexed array sizes
    btrfs: fix rw device counting in __btrfs_free_extra_devids
    x86/asm: Ensure asm/proto.h can be included stand-alone
  * gro: ensure frag0 meets IP header alignment
      include/linux/skbuff.h
      net/core/dev.c
  * virtio_net: Do not pull payload in skb->head
      include/linux/virtio_net.h
    Merge 4.19.200 into android-4.19-stable
Linux 4.19.200
    ARM: dts: versatile: Fix up interrupt controller node names
    cifs: fix the out of range assignment to bit fields in parse_server_interfaces
    firmware: arm_scmi: Fix range check for the maximum number of pending messages
    firmware: arm_scmi: Fix possible scmi_linux_errmap buffer overflow
    hfs: add lock nesting notation to hfs_find_init
    hfs: fix high memory mapping in hfs_bnode_read
    hfs: add missing clean-up in hfs_fill_super
  * sctp: move 198 addresses from unusable to private scope
      include/net/sctp/constants.h
      net/sctp/protocol.c
  * net: annotate data race around sk_ll_usec
      include/net/busy_poll.h
      net/core/sock.c
    net/802/garp: fix memleak in garp_request_join()
    net/802/mrp: fix memleak in mrp_request_join()
  * workqueue: fix UAF in pwq_unbound_release_workfn()
      kernel/workqueue.c
  * af_unix: fix garbage collect vs MSG_PEEK
      net/unix/af_unix.c
  * net: split out functions related to registering inflight socket files
      include/net/af_unix.h
      net/Makefile
      net/unix/Kconfig
      net/unix/Makefile
      net/unix/af_unix.c
      net/unix/garbage.c
      net/unix/scm.c
      net/unix/scm.h
    KVM: x86: determine if an exception has an error code only when injecting it.
    iio: dac: ds4422/ds4424 drop of_node check
    selftest: fix build error in tools/testing/selftests/vm/userfaultfd.c
  * ANDROID: staging: ion: move buffer kmap from begin/end_cpu_access()
      drivers/staging/android/ion/ion.c
    Merge 4.19.199 into android-4.19-stable
Linux 4.19.199
  * xhci: add xhci_get_virt_ep() helper
      drivers/usb/host/xhci-ring.c
      drivers/usb/host/xhci.h
    spi: spi-fsl-dspi: Fix a resource leak in an error handling path
  * PCI: Mark AMD Navi14 GPU ATS as broken
      drivers/pci/quirks.c
    btrfs: compression: don't try to compress if we don't have enough pages
    iio: accel: bma180: Fix BMA25x bandwidth register values
    iio: accel: bma180: Use explicit member assignment
    net: bcmgenet: ensure EXT_ENERGY_DET_MASK is clear
    net: dsa: mv88e6xxx: use correct .stats_set_histogram() on Topaz
    KVM: Use kvm_pfn_t for local PFN variable in hva_to_pfn_remapped()
    KVM: do not allow mapping valid but non-reference-counted pages
    KVM: do not assume PTE is writable after follow_pfn
  * drm: Return -ENOTTY for non-drm ioctls
      drivers/gpu/drm/drm_ioctl.c
      include/drm/drm_ioctl.h
    nds32: fix up stack guard gap
    selftest: use mmap instead of posix_memalign to allocate memory
    ixgbe: Fix packet corruption due to missing DMA sync
    media: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf()
  * tracing: Fix bug in rb_per_cpu_empty() that might cause deadloop.
      kernel/trace/ring_buffer.c
    usb: dwc2: gadget: Fix sending zero length packet in DDMA mode.
    USB: serial: cp210x: add ID for CEL EM3588 USB ZigBee stick
    USB: serial: cp210x: fix comments for GE CS1000
    USB: serial: option: add support for u-blox LARA-R6 family
    usb: renesas_usbhs: Fix superfluous irqs happen after usb_pkt_pop()
    usb: max-3421: Prevent corruption of freed memory
    USB: usb-storage: Add LaCie Rugged USB3-FW to IGNORE_UAS
  * usb: hub: Fix link power management max exit latency (MEL) calculations
      drivers/usb/core/hub.c
  * usb: hub: Disable USB 3 device initiated lpm if exit latency is too high
      drivers/usb/core/hub.c
    KVM: PPC: Book3S: Fix H_RTAS rets buffer overflow
  * xhci: Fix lost USB 2 remote wake
      drivers/usb/host/xhci-hub.c
    ALSA: sb: Fix potential ABBA deadlock in CSP driver
  * ALSA: usb-audio: Add registration quirk for JBL Quantum headsets
      sound/usb/quirks.c
    s390/ftrace: fix ftrace_update_ftrace_func implementation
    Revert "MIPS: add PMD table accounting into MIPS'pmd_alloc_one"
  * proc: Avoid mixing integer types in mem_rw()
      fs/proc/base.c
    drm/panel: raspberrypi-touchscreen: Prevent double-free
  * net: sched: cls_api: Fix the the wrong parameter
      net/sched/cls_api.c
  * sctp: update active_key for asoc when old key is being replaced
      net/sctp/auth.c
  * Revert "USB: quirks: ignore remote wake-up on Fibocom L850-GL LTE modem"
      drivers/usb/core/quirks.c
    nvme-pci: don't WARN_ON in nvme_reset_work if ctrl.state is not RESETTING
    net/sched: act_skbmod: Skip non-Ethernet packets
  * net/tcp_fastopen: fix data races around tfo_active_disable_stamp
      net/ipv4/tcp_fastopen.c
    spi: cadence: Correct initialisation of runtime PM again
    scsi: target: Fix protect handling in WRITE SAME(32)
    scsi: iscsi: Fix iface sysfs attr detection
    netrom: Decrease sock refcount when sock timers expire
    KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak
    net: decnet: Fix sleeping inside in af_decnet
    net: fix uninit-value in caif_seqpkt_sendmsg
    bpftool: Check malloc return value in mount_bpffs_for_pin
    s390/bpf: Perform r1 range checking before accessing jit->seen_reg[r1]
    liquidio: Fix unintentional sign extension issue on left shift of u16
    spi: mediatek: fix fifo rx mode
    perf probe-file: Delete namelist in del_events() on the error path
    perf test bpf: Free obj_buf
    perf lzma: Close lzma stream on exit
    perf dso: Fix memory leak in dso__new_map()
    perf probe: Fix dso->nsinfo refcounting
    perf map: Fix dso->nsinfo refcounting
    nvme-pci: do not call nvme_dev_remove_admin from nvme_remove
  * ipv6: fix 'disable_policy' for fwd packets
      net/ipv6/ip6_output.c
    igb: Fix position of assignment to *ring
    igb: Check if num of q_vectors is smaller than max before array access
    iavf: Fix an error handling path in 'iavf_probe()'
    e1000e: Fix an error handling path in 'e1000_probe()'
    fm10k: Fix an error handling path in 'fm10k_probe()'
    igb: Fix an error handling path in 'igb_probe()'
    ixgbe: Fix an error handling path in 'ixgbe_probe()'
    igb: Fix use-after-free error during reset
  * net: ip_tunnel: fix mtu calculation for ETHER tunnel devices
      net/ipv4/ip_tunnel.c
  * udp: annotate data races around unix_sk(sk)->gso_size
      net/ipv4/udp.c
      net/ipv6/udp.c
    bpftool: Properly close va_list 'ap' by va_end() on error
  * ipv6: tcp: drop silly ICMPv6 packet too big messages
      net/ipv4/tcp_output.c
      net/ipv6/tcp_ipv6.c
  * tcp: annotate data races around tp->mtu_info
      net/ipv4/tcp_ipv4.c
      net/ipv6/tcp_ipv6.c
  * dma-buf/sync_file: Don't leak fences on merge failure
      drivers/dma-buf/sync_file.c
  * net: validate lwtstate->data before returning from skb_tunnel_info()
      include/net/dst_metadata.h
  * net: send SYNACK packet with accepted fwmark
      net/ipv6/tcp_ipv6.c
    net: ti: fix UAF in tlan_remove_one
    net: qcom/emac: fix UAF in emac_remove
    net: moxa: fix UAF in moxart_mac_probe
    net: bcmgenet: Ensure all TX/RX queues DMAs are disabled
  * net: bridge: sync fdb to new unicast-filtering ports
      net/bridge/br_if.c
  * netfilter: ctnetlink: suspicious RCU usage in ctnetlink_dump_helpinfo
      net/netfilter/nf_conntrack_netlink.c
  * net: ipv6: fix return value of ip6_skb_dst_mtu
      include/net/ip6_route.h
      net/ipv6/xfrm6_output.c
    net: dsa: mv88e6xxx: enable .rmu_disable() on Topaz
    dm writecache: fix writing beyond end of underlying device when shrinking
    dm writecache: return the exact table values that were set
  * mm: slab: fix kmem_cache_create failed when sysfs node not destroyed
      mm/slab_common.c
  * sched/fair: Fix CFS bandwidth hrtimer expiry type
      kernel/sched/fair.c
    scsi: libfc: Fix array index out of bound exception
    scsi: libsas: Add LUN number check in .slave_alloc callback
    scsi: aic7xxx: Fix unintentional sign extension issue on left shift of u8
    rtc: max77686: Do not enforce (incorrect) interrupt trigger type
  * kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set
      scripts/mkcompile_h
  * thermal/core: Correct function name thermal_zone_device_unregister()
      drivers/thermal/thermal_core.c
    arm64: dts: ls208xa: remove bus-num from dspi node
    soc/tegra: fuse: Fix Tegra234-only builds
    ARM: dts: stm32: move stmmac axi config in ethernet node on stm32mp15
    ARM: dts: stm32: fix i2c node name on stm32f746 to prevent warnings
    ARM: dts: rockchip: fix supply properties in io-domains nodes
    arm64: dts: juno: Update SCPI nodes as per the YAML schema
    ARM: dts: stm32: fix timer nodes on STM32 MCU to prevent warnings
    ARM: dts: stm32: fix RCC node name on stm32f429 MCU
    ARM: dts: stm32: fix gpio-keys node on STM32 MCU boards
    rtc: mxc_v2: add missing MODULE_DEVICE_TABLE
    ARM: imx: pm-imx5: Fix references to imx5_cpu_suspend_info
    ARM: dts: imx6: phyFLEX: Fix UART hardware flow control
    ARM: dts: Hurricane 2: Fix NAND nodes names
    ARM: dts: BCM63xx: Fix NAND nodes names
    ARM: NSP: dts: fix NAND nodes names
    ARM: Cygnus: dts: fix NAND nodes names
    ARM: brcmstb: dts: fix NAND nodes names
    reset: ti-syscon: fix to_ti_syscon_reset_data macro
    arm64: dts: rockchip: Fix power-controller node names for rk3328
    ARM: dts: rockchip: Fix power-controller node names for rk3288
    ARM: dts: rockchip: Fix IOMMU nodes properties on rk322x
    ARM: dts: rockchip: Fix the timer clocks order
    arm64: dts: rockchip: fix pinctrl sleep nodename for rk3399.dtsi
    ARM: dts: rockchip: fix pinctrl sleep nodename for rk3036-kylin and rk3288
    ARM: dts: gemini: add device_type on pci
    ARM: dts: gemini: rename mdio to the right name
  * ANDROID: generate_initcall_order.pl: Use two dash long options for llvm-nm
      scripts/generate_initcall_order.pl
  * Revert "media: subdev: disallow ioctl for saa6588/davinci"
      include/media/v4l2-subdev.h
  * ANDROID: GKI: fix up crc change in ip.h
      include/net/ip.h
    Merge 4.19.198 into android-4.19-stable
Linux 4.19.198
  * seq_file: disallow extremely large seq buffer allocations
      fs/seq_file.c
    scsi: scsi_dh_alua: Fix signedness bug in alua_rtpg()
  * net: bridge: multicast: fix PIM hello router port marking race
      net/bridge/br_multicast.c
    MIPS: vdso: Invalid GIC access through VDSO
    mips: disable branch profiling in boot/decompress.o
    mips: always link byteswap helpers into decompressor
    scsi: be2iscsi: Fix an error handling path in beiscsi_dev_probe()
    ARM: dts: imx6q-dhcom: Add gpios pinctrl for i2c bus recovery
    ARM: dts: imx6q-dhcom: Fix ethernet plugin detection problems
    ARM: dts: imx6q-dhcom: Fix ethernet reset time properties
    ARM: dts: am437x: align ti,pindir-d0-out-d1-in property with dt-shema
    ARM: dts: am335x: align ti,pindir-d0-out-d1-in property with dt-shema
    memory: fsl_ifc: fix leak of private memory on probe failure
    memory: fsl_ifc: fix leak of IO mapping on probe failure
  * reset: bail if try_module_get() fails
      drivers/reset/core.c
    ARM: dts: BCM5301X: Fixup SPI binding
    ARM: dts: r8a7779, marzen: Fix DU clock names
    arm64: dts: renesas: v3msk: Fix memory size
  * rtc: fix snprintf() checking in is_rtc_hctosys()
      drivers/rtc/rtc-proc.c
    memory: atmel-ebi: add missing of_node_put for loop iteration
    ARM: dts: exynos: fix PWM LED max brightness on Odroid XU4
    ARM: dts: exynos: fix PWM LED max brightness on Odroid HC1
    ARM: dts: exynos: fix PWM LED max brightness on Odroid XU/XU3
    reset: a10sr: add missing of_match_table reference
    hexagon: use common DISCARDS macro
    NFSv4/pNFS: Don't call _nfs4_pnfs_v3_ds_connect multiple times
    ALSA: isa: Fix error return code in snd_cmi8330_probe()
    virtio_net: move tx vq operation under tx queue lock
    x86/fpu: Limit xstate copy size in xstateregs_set()
    PCI: iproc: Support multi-MSI only on uniprocessor kernel
    PCI: iproc: Fix multi-MSI base vector number allocation
    ubifs: Set/Clear I_LINKABLE under i_lock for whiteout inode
    nfs: fix acl memory leak of posix_acl_create()
    watchdog: aspeed: fix hardware timeout calculation
    um: fix error return code in winch_tramp()
    um: fix error return code in slip_open()
    NFSv4: Initialise connection to the server in nfs4_alloc_client()
  * power: supply: rt5033_battery: Fix device tree enumeration
      drivers/power/supply/Kconfig
    PCI/sysfs: Fix dsm_label_utf16s_to_utf8s() buffer overrun
  * f2fs: add MODULE_SOFTDEP to ensure crc32 is included in the initramfs
      fs/f2fs/super.c
    virtio_console: Assure used length from device is limited
    virtio_net: Fix error handling in virtnet_restore()
    virtio-blk: Fix memory leak among suspend/resume procedure
    ACPI: video: Add quirk for the Dell Vostro 3350
    ACPI: AMBA: Fix resource name in /proc/iomem
    pwm: tegra: Don't modify HW state in .remove callback
    power: supply: ab8500: add missing MODULE_DEVICE_TABLE
    power: supply: charger-manager: add missing MODULE_DEVICE_TABLE
  * NFS: nfs_find_open_context() may only select open files
      include/linux/nfs_fs.h
    ceph: remove bogus checks and WARN_ONs from ceph_set_page_dirty
    orangefs: fix orangefs df output.
    PCI: tegra: Add missing MODULE_DEVICE_TABLE
    x86/fpu: Return proper error codes from user access functions
    watchdog: iTCO_wdt: Account for rebooting on second timeout
    watchdog: Fix possible use-after-free by calling del_timer_sync()
    watchdog: sc520_wdt: Fix possible use-after-free in wdt_turnoff()
    watchdog: Fix possible use-after-free in wdt_startup()
    ARM: 9087/1: kprobes: test-thumb: fix for LLVM_IAS=1
    power: reset: gpio-poweroff: add missing MODULE_DEVICE_TABLE
    power: supply: max17042: Do not enforce (incorrect) interrupt trigger type
    power: supply: ab8500: Avoid NULL pointers
    pwm: spear: Don't modify HW state in .remove callback
  * lib/decompress_unlz4.c: correctly handle zero-padding around initrds.
      lib/decompress_unlz4.c
  * i2c: core: Disable client irq on reboot/shutdown
      drivers/i2c/i2c-core-base.c
    intel_th: Wait until port is in reset before programming it
    staging: rtl8723bs: fix macro value for 2.4Ghz only device
    ALSA: hda: Add IRQ check for platform_get_irq()
    backlight: lm3630a: Fix return code of .update_status() callback
    powerpc/boot: Fixup device-tree on little endian
    usb: gadget: hid: fix error return code in hid_bind()
  * usb: gadget: f_hid: fix endianness issue with descriptors
      drivers/usb/gadget/function/f_hid.c
  * ALSA: bebob: add support for ToneWeal FW66
      sound/firewire/Kconfig
    Input: hideep - fix the uninitialized use in hideep_nvm_unlock()
  * ASoC: soc-core: Fix the error return code in snd_soc_of_parse_audio_routing()
      sound/soc/soc-core.c
    gpio: pca953x: Add support for the On Semi pca9655
    selftests/powerpc: Fix "no_handler" EBB selftest
    ALSA: ppc: fix error return code in snd_pmac_probe()
    gpio: zynq: Check return value of pm_runtime_get_sync
    powerpc/ps3: Add dma_mask to ps3_dma_region
    ALSA: sb: Fix potential double-free of CSP mixer elements
    selftests: timers: rtcpie: skip test if default RTC device does not exist
    s390/sclp_vt220: fix console name to match device
    mfd: da9052/stmpe: Add and modify MODULE_DEVICE_TABLE
    scsi: qedi: Fix null ref during abort handling
    scsi: iscsi: Fix shost->max_id use
  * scsi: iscsi: Fix conn use after free during resets
      include/scsi/libiscsi.h
  * scsi: iscsi: Add iscsi_cls_conn refcount helpers
      include/scsi/scsi_transport_iscsi.h
    fs/jfs: Fix missing error code in lmLogInit()
    scsi: scsi_dh_alua: Check for negative result value
    tty: serial: 8250: serial_cs: Fix a memory leak in error handling path
    ALSA: ac97: fix PM reference leak in ac97_bus_remove()
  * scsi: core: Cap scsi_host cmd_per_lun at can_queue
      drivers/scsi/hosts.c
    scsi: lpfc: Fix crash when lpfc_sli4_hba_setup() fails to initialize the SGLs
    scsi: lpfc: Fix "Unexpected timeout" error in direct attach topology
    w1: ds2438: fixing bug that would always get page0
  * Revert "ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro"
      sound/firewire/Kconfig
    misc/libmasm/module: Fix two use after free in ibmasm_init_one
    tty: serial: fsl_lpuart: fix the potential risk of division or modulo by zero
    PCI: aardvark: Fix kernel panic during PIO transfer
    PCI: aardvark: Don't rely on jiffies while holding spinlock
    tracing: Do not reference char * as a string in histograms
  * scsi: core: Fix bad pointer dereference when ehandler kthread is invalid
      drivers/scsi/hosts.c
    KVM: X86: Disable hardware breakpoints unconditionally before kvm_x86->run()
    KVM: x86: Use guest MAXPHYADDR from CPUID.0x8000_0008 iff TDP is enabled
  * smackfs: restrict bytes count in smk_set_cipso()
      security/smack/smackfs.c
    jfs: fix GPF in diFree
    pinctrl: mcp23s08: Fix missing unlock on error in mcp23s08_irq()
    media: uvcvideo: Fix pixel format change for Elgato Cam Link 4K
    media: gspca/sunplus: fix zero-length control requests
    media: gspca/sq905: fix control-request direction
    media: zr364xx: fix memory leak in zr364xx_start_readpipe
    media: dtv5100: fix control-request directions
  * media: subdev: disallow ioctl for saa6588/davinci
      include/media/v4l2-subdev.h
    PCI: aardvark: Fix checking for PIO Non-posted Request
  * PCI: Leave Apple Thunderbolt controllers on for s2idle or standby
      drivers/pci/quirks.c
    dm btree remove: assign new_root only when removal succeeds
  * coresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer()
      drivers/hwtracing/coresight/coresight-tmc-etf.c
    ipack/carriers/tpci200: Fix a double free in tpci200_pci_probe
  * tracing: Resize tgid_map to pid_max, not PID_MAX_DEFAULT
      kernel/trace/trace.c
  * tracing: Simplify & fix saved_tgids logic
      kernel/trace/trace.c
  * seq_buf: Fix overflow in seq_buf_putmem_hex()
      lib/seq_buf.c
  * power: supply: ab8500: Fix an old bug
      include/linux/mfd/abx500/ux500_chargalg.h
    ipmi/watchdog: Stop watchdog timer when the current action is 'none'
    qemu_fw_cfg: Make fw_cfg_rev_attr a proper kobj_attribute
    ASoC: tegra: Set driver_name=tegra for all machine drivers
  * clocksource/arm_arch_timer: Improve Allwinner A64 timer workaround
      drivers/clocksource/arm_arch_timer.c
  * cpu/hotplug: Cure the cpusets trainwreck
      kernel/cpu.c
    ata: ahci_sunxi: Disable DIPM
    mmc: core: Allow UHS-I voltage switch for SDSC cards if supported
    mmc: core: clear flags before allowing to retune
    mmc: sdhci: Fix warning message when accessing RPMB in HS400 mode
    drm/msm/mdp4: Fix modifier support enabling
    pinctrl/amd: Add device HID for new AMD GPIO controller
    drm/amd/display: fix incorrrect valid irq check
    drm/radeon: Add the missed drm_gem_object_put() in radeon_user_framebuffer_create()
  * usb: gadget: f_fs: Fix setting of device and driver data cross-references
      drivers/usb/gadget/function/f_fs.c
    powerpc/barrier: Avoid collision with clang's __lwsync macro
  * fuse: reject internal errno
      fs/fuse/dev.c
    serial: mvebu-uart: fix calculation of clock divisor
    serial: mvebu-uart: clarify the baud rate derivation
  * bdi: Do not use freezable workqueue
      mm/backing-dev.c
  * fscrypt: don't ignore minor_hash when hash is 0
      fs/crypto/fname.c
    MIPS: set mips32r5 for virt extensions
  * sctp: add size validation when walking chunks
      net/sctp/input.c
  * sctp: validate from_addr_param return
      include/net/sctp/structs.h
      net/sctp/bind_addr.c
      net/sctp/input.c
      net/sctp/ipv6.c
      net/sctp/protocol.c
      net/sctp/sm_make_chunk.c
    Bluetooth: btusb: fix bt fiwmare downloading failure issue for qca btsoc.
  * Bluetooth: Shutdown controller after workqueues are flushed or cancelled
      net/bluetooth/hci_core.c
  * Bluetooth: Fix the HCI to MGMT status conversion table
      net/bluetooth/mgmt.c
    RDMA/cma: Fix rdma_resolve_route() memory leak
  * net: ip: avoid OOM kills with large UDP sends over loopback
      net/ipv4/ip_output.c
      net/ipv6/ip6_output.c
    media, bpf: Do not copy more entries than user space requested
  * wireless: wext-spy: Fix out-of-bounds warning
      net/wireless/wext-spy.c
    sfc: error code if SRIOV cannot be disabled
    sfc: avoid double pci_remove of VFs
    iwlwifi: pcie: free IML DMA memory allocation
    iwlwifi: mvm: don't change band on bound PHY contexts
    RDMA/rxe: Don't overwrite errno from ib_umem_get()
    vsock: notify server to shutdown when client has pending signal
    atm: nicstar: register the interrupt handler in the right place
    atm: nicstar: use 'dma_free_coherent' instead of 'kfree'
    MIPS: add PMD table accounting into MIPS'pmd_alloc_one
    rtl8xxxu: Fix device info for RTL8192EU devices
  * net: fix mistake path for netdev_features_strings
      include/linux/netdev_features.h
      include/uapi/linux/ethtool.h
    cw1200: add missing MODULE_DEVICE_TABLE
    wl1251: Fix possible buffer overflow in wl1251_cmd_scan
    wlcore/wl12xx: Fix wl12xx get_mac error if device is in ELP
  * xfrm: Fix error reporting in xfrm_state_construct.
      net/xfrm/xfrm_user.c
  * selinux: use __GFP_NOWARN with GFP_NOWAIT in the AVC
      security/selinux/avc.c
    fjes: check return value after calling platform_get_resource()
    net: micrel: check return value after calling platform_get_resource()
    net: mvpp2: check return value after calling platform_get_resource()
    net: bcmgenet: check return value after calling platform_get_resource()
    virtio_net: Remove BUG() to avoid machine dead
    ice: set the value of global config lock timeout longer
    pinctrl: mcp23s08: fix race condition in irq handler
    dm space maps: don't reset space map allocation cursor when committing
    RDMA/cxgb4: Fix missing error code in create_qp()
  * ipv6: use prandom_u32() for ID generation
      net/ipv6/output_core.c
    clk: tegra: Ensure that PLLU configuration is applied properly
    clk: renesas: r8a77995: Add ZA2 clock
    e100: handle eeprom as little endian
    udf: Fix NULL pointer dereference in udf_symlink function
    drm/virtio: Fix double free on probe failure
    reiserfs: add check for invalid 1st journal block
  * net: Treat __napi_schedule_irqoff() as __napi_schedule() on PREEMPT_RT
      net/core/dev.c
    atm: nicstar: Fix possible use-after-free in nicstar_cleanup()
    mISDN: fix possible use-after-free in HFC_cleanup()
    atm: iphase: fix possible use-after-free in ia_module_exit()
    hugetlb: clear huge pte during flush function on mips platform
    drm/amd/display: fix use_max_lb flag for 420 pixel formats
    net: pch_gbe: Use proper accessors to BE data in pch_ptp_match()
    drm/amd/amdgpu/sriov disable all ip hw status by default
  * drm/zte: Don't select DRM_KMS_FB_HELPER
      drivers/gpu/drm/zte/Kconfig
  * drm/mxsfb: Don't select DRM_KMS_FB_HELPER
      drivers/gpu/drm/mxsfb/Kconfig
    mmc: vub3000: fix control-request direction
    mmc: block: Disable CMDQ on the ioctl path
    perf llvm: Return -ENOMEM when asprintf() fails
    selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random
    mm/huge_memory.c: don't discard hugepage if other processes are mapping it
    vfio/pci: Handle concurrent vma faults
    arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
    serial: mvebu-uart: correctly calculate minimal possible baudrate
    powerpc: Offline CPU in stop_this_cpu()
    leds: ktd2692: Fix an error handling path
    leds: as3645a: Fix error return code in as3645a_parse_node()
  * configfs: fix memleak in configfs_release_bin_file
      fs/configfs/file.c
    ASoC: atmel-i2s: Fix usage of capture and playback at the same time
    extcon: max8997: Add missing modalias string
    extcon: sm5502: Drop invalid register write in sm5502_reg_data
    phy: ti: dm816x: Fix the error handling path in 'dm816x_usb_phy_probe()
    scsi: mpt3sas: Fix error return value in _scsih_expander_add()
    mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
  * of: Fix truncation of memory sizes on 32-bit platforms
      drivers/of/fdt.c
      drivers/of/of_reserved_mem.c
    ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK
    iio: prox: isl29501: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    serial: 8250: Actually allow UPF_MAGIC_MULTIPLIER baud rates
    staging: mt7621-dts: fix pci address for PCI memory range
    staging: gdm724x: check for overflow in gdm_lte_netif_rx()
    staging: gdm724x: check for buffer overflow in gdm_lte_multi_sdu_pkt()
    iio: adc: ti-ads8688: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
    iio: adc: mxs-lradc: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    eeprom: idt_89hpesx: Restore printing the unsupported fwnode name
    eeprom: idt_89hpesx: Put fwnode in matching case during ->probe()
    s390: appldata depends on PROC_SYSCTL
    visorbus: fix error return code in visorchipset_init()
    fsi/sbefifo: Fix reset timeout
    fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE
    fsi: scom: Reset the FSI2PIB engine for any error
    fsi: core: Fix return of error values on failures
    scsi: FlashPoint: Rename si_flags field
    tty: nozomi: Fix the error handling path of 'nozomi_card_init()'
    char: pcmcia: error out if 'num_bytes_read' is greater than 4 in set_protocol()
    Input: hil_kbd - fix error return code in hil_dev_connect()
    ASoC: rsnd: tidyup loop on rsnd_adg_clk_query()
    ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup()
    iio: potentiostat: lmp91000: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
    iio: light: tcs3472: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: light: tcs3414: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: light: isl29125: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: prox: as3935: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: prox: pulsed-light: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: prox: srf08: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: humidity: am2315: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: gyro: bmg160: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: adc: vf610: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: adc: ti-ads1015: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: accel: stk8ba50: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: accel: stk8312: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: accel: kxcjk-1013: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: accel: hid: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: accel: bma220: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: accel: bma180: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
    iio: adis_buffer: do not return ints in irq handlers
    mwifiex: re-fix for unaligned accesses
    tty: nozomi: Fix a resource leak in an error handling function
    RDMA/mlx5: Don't access NULL-cleared mpi pointer
    net: sched: fix warning in tcindex_alloc_perfect_hash
  * net: lwtunnel: handle MTU calculation in forwading
      include/net/ip.h
      include/net/ip6_route.h
      net/ipv4/route.c
  * writeback: fix obtain a reference to a freeing memcg css
      fs/fs-writeback.c
  * Bluetooth: Fix handling of HCI_LE_Advertising_Set_Terminated event
      net/bluetooth/hci_event.c
  * Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid
      net/bluetooth/mgmt.c
  * ipv6: fix out-of-bound access in ip6_parse_tlv()
      net/ipv6/exthdrs.c
    ibmvnic: free tx_pool if tso_pool alloc fails
    Revert "ibmvnic: remove duplicate napi_schedule call in open function"
    i40e: Fix autoneg disabling for non-10GBaseT links
    i40e: Fix error handling in i40e_vsi_open
  * bpf: Do not change gso_size during bpf_skb_change_proto()
      net/core/filter.c
  * ipv6: exthdrs: do not blindly use init_net
      net/ipv6/exthdrs.c
    net: bcmgenet: Fix attaching to PYH failed on RPi 4B
    mac80211: remove iwlwifi specific workaround NDPs of null_response
    ieee802154: hwsim: avoid possible crash in hwsim_del_edge_nl()
    ieee802154: hwsim: Fix memory leak in hwsim_add_one
  * net/ipv4: swap flow ports when validating source
      net/ipv4/fib_frontend.c
    vxlan: add missing rcu_read_lock() in neigh_reduce()
    pkt_sched: sch_qfq: fix qfq_change_class() error path
    net: ethernet: ezchip: fix error handling
    net: ethernet: ezchip: fix UAF in nps_enet_remove
    net: ethernet: aeroflex: fix UAF in greth_of_remove
    samples/bpf: Fix the error return code of xdp_redirect's main()
    RDMA/rxe: Fix qp reference counting for atomic ops
    netfilter: nft_tproxy: restrict support to TCP and UDP transport protocols
    netfilter: nft_osf: check for TCP packet before further processing
    netfilter: nft_exthdr: check for IPv6 packet before further processing
    RDMA/mlx5: Don't add slave port to unaffiliated list
  * netlabel: Fix memory leak in netlbl_mgmt_add_common
      net/netlabel/netlabel_mgmt.c
    ath10k: Fix an error code in ath10k_add_interface()
    brcmsmac: mac80211_if: Fix a resource leak in an error handling path
    brcmfmac: correctly report average RSSI in station info
    brcmfmac: fix setting of station info chains bitmask
    ssb: Fix error return code in ssb_bus_scan()
    wcn36xx: Move hal_buf allocation to devm_kmalloc in probe
    ieee802154: hwsim: Fix possible memory leak in hwsim_subscribe_all_others
  * wireless: carl9170: fix LEDS build errors & warnings
      drivers/net/wireless/ath/carl9170/Kconfig
    tools/bpftool: Fix error return code in do_batch()
    drm: qxl: ensure surf.data is ininitialized
    RDMA/rxe: Fix failure during driver load
    ehea: fix error return code in ehea_restart_qps()
    drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write()
    net: pch_gbe: Propagate error from devm_gpio_request_one()
    net: mvpp2: Put fwnode in error case during ->probe()
    ocfs2: fix snprintf() checking
    blk-wbt: make sure throttle is enabled properly
  * blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled()
      block/blk-wbt.h
    ACPI: sysfs: Fix a buffer overrun problem with description_show()
    crypto: nx - Fix RCU warning in nx842_OF_upd_status
    spi: spi-sun6i: Fix chipselect/clock bug
    btrfs: clear log tree recovering status if starting transaction fails
    hwmon: (max31790) Fix fan speed reporting for fan7..12
    hwmon: (max31722) Remove non-standard ACPI device IDs
    media: s5p-g2d: Fix a memory leak on ctx->fh.m2m_ctx
    mmc: usdhi6rol0: fix error return code in usdhi6_probe()
    media: siano: Fix out-of-bounds warnings in smscore_load_firmware_family2()
    media: gspca/gl860: fix zero-length control requests
    media: tc358743: Fix error return code in tc358743_probe_of()
    media: exynos4-is: Fix a use after free in isp_video_release
    pata_ep93xx: fix deferred probing
    media: rc: i2c: Fix an error message
    crypto: ccp - Fix a resource leak in an error handling path
    evm: fix writing <securityfs>/evm overflow
    pata_octeon_cf: avoid WARN_ON() in ata_host_activate()
    media: I2C: change 'RST' to "RSET" to fix multiple build errors
    pata_rb532_cf: fix deferred probing
    sata_highbank: fix deferred probing
    crypto: ux500 - Fix error return code in hash_hw_final()
    crypto: ixp4xx - dma_unmap the correct address
    media: s5p_cec: decrement usage count if disabled
    ia64: mca_drv: fix incorrect array size calculation
    HID: wacom: Correct base usage for capacitive ExpressKey status bits
    ACPI: tables: Add custom DSDT file as makefile prerequisite
  * clocksource: Retry clock read if long delays detected
      kernel/time/clocksource.c
    platform/x86: toshiba_acpi: Fix missing error code in toshiba_acpi_setup_keyboard()
    ACPI: bus: Call kobject_put() in acpi_init() error path
    ACPICA: Fix memory leak caused by _CID repair function
    fs: dlm: fix memory leak when fenced
  * random32: Fix implicit truncation warning in prandom_seed_state()
      include/linux/prandom.h
    fs: dlm: cancel work sync othercon
  * block_dump: remove block_dump feature in mark_inode_dirty()
      fs/fs-writeback.c
    ACPI: EC: Make more Asus laptops use ECDT _GPE
  * lib: vsprintf: Fix handling of number field widths in vsscanf
      lib/kstrtox.c
      lib/kstrtox.h
      lib/vsprintf.c
    hv_utils: Fix passing zero to 'PTR_ERR' warning
    ACPI: processor idle: Fix up C-state latency if not ordered
    EDAC/ti: Add missing MODULE_DEVICE_TABLE
  * HID: do not use down_interruptible() when unbinding devices
      drivers/hid/hid-core.c
    regulator: da9052: Ensure enough delay time for .set_voltage_time_sel
  * btrfs: disable build on platforms having page size 256K
      fs/btrfs/Kconfig
    btrfs: abort transaction if we fail to update the delayed inode
    btrfs: fix error handling in __btrfs_update_delayed_inode
    media: imx-csi: Skip first few frames from a BT.656 source
    media: siano: fix device register error path
    media: dvb_net: avoid speculation from net slot
  * crypto: shash - avoid comparing pointers to exported functions under CFI
      crypto/shash.c
      include/crypto/internal/hash.h
    mmc: via-sdmmc: add a check against NULL pointer dereference
    media: dvd_usb: memory leak in cinergyt2_fe_attach
    media: st-hva: Fix potential NULL pointer dereferences
    media: bt8xx: Fix a missing check bug in bt878_probe
  * media: v4l2-core: Avoid the dangling pointer in v4l2_fh_release
      drivers/media/v4l2-core/v4l2-fh.c
    media: em28xx: Fix possible memory leak of em28xx struct
  * sched/fair: Fix ascii art by relpacing tabs
      kernel/sched/fair.c
    crypto: qat - remove unused macro in FW loader
    crypto: qat - check return code of qat_hal_rd_rel_reg()
    media: pvrusb2: fix warning in pvr2_i2c_core_done
    media: cobalt: fix race condition in setting HPD
    media: cpia2: fix memory leak in cpia2_usb_probe
    crypto: nx - add missing MODULE_DEVICE_TABLE
    regulator: uniphier: Add missing MODULE_DEVICE_TABLE
    spi: omap-100k: Fix the length judgment problem
    spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages()
    spi: spi-loopback-test: Fix 'tx_buf' might be 'rx_buf'
  * spi: Make of_register_spi_device also set the fwnode
      drivers/spi/spi.c
  * fuse: check connected before queueing on fpq->io
      fs/fuse/dev.c
    evm: Refuse EVM_ALLOW_METADATA_WRITES only if an HMAC key is loaded
    evm: Execute evm_inode_init_security() only when an HMAC key is loaded
    powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()
  * seq_buf: Make trace_seq_putmem_hex() support data longer than 8
      lib/seq_buf.c
  * tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
      include/linux/tracepoint.h
      kernel/trace/bpf_trace.c
      kernel/tracepoint.c
    tracing/histograms: Fix parsing of "sym-offset" modifier
    rsi: fix AP mode with WPA failure due to encrypted EAPOL
    rsi: Assign beacon rate settings to the correct rate_info descriptor field
    ssb: sdio: Don't overwrite const buffer if block_write fails
    ath9k: Fix kernel NULL pointer dereference during ath_reset_internal()
    serial_cs: remove wrong GLOBETROTTER.cis entry
    serial_cs: Add Option International GSM-Ready 56K/ISDN modem
    serial: sh-sci: Stop dmaengine transfer in sci_stop_tx()
    iio: ltr501: ltr501_read_ps(): add missing endianness conversion
    iio: ltr501: ltr559: fix initialization of LTR501_ALS_CONTR
    iio: ltr501: mark register holding upper 8 bits of ALS_DATA{0,1} and PS_DATA as volatile, too
    iio: light: tcs3472: do not free unallocated IRQ
    rtc: stm32: Fix unbalanced clk_disable_unprepare() on probe error path
    s390/cio: dont call css_wait_for_slow_path() inside a lock
    SUNRPC: Should wake up the privileged task firstly.
    SUNRPC: Fix the batch tasks count wraparound.
    can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path
    can: gw: synchronize rcu operations before removing gw job entry
    can: bcm: delay release of struct bcm_op after synchronize_rcu()
  * ext4: use ext4_grp_locked_error in mb_find_extent
      fs/ext4/mballoc.c
  * ext4: fix avefreec in find_group_orlov
      fs/ext4/ialloc.c
  * ext4: remove check for zero nr_to_scan in ext4_es_scan()
      fs/ext4/extents_status.c
  * ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit
      fs/ext4/extents_status.c
  * ext4: return error code when ext4_fill_flex_info() fails
      fs/ext4/super.c
  * ext4: fix kernel infoleak via ext4_extent_header
      fs/ext4/extents.c
  * ext4: cleanup in-core orphan list if ext4_truncate() failed to get a transaction handle
      fs/ext4/super.c
    btrfs: clear defrag status of a root if starting transaction fails
    btrfs: send: fix invalid path for unlink operations after parent orphanization
    ARM: dts: at91: sama5d4: fix pinctrl muxing
    arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode
    Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl
  * iov_iter_fault_in_readable() should do nothing in xarray case
      lib/iov_iter.c
    ntfs: fix validity check for file name attribute
  * xhci: solve a double free problem while doing s4
      drivers/usb/host/xhci-mem.c
  * usb: typec: Add the missed altmode_id_remove() in typec_register_altmode()
      drivers/usb/typec/class.c
  * usb: dwc3: Fix debugfs creation flow
      drivers/usb/dwc3/core.c
    USB: cdc-acm: blacklist Heimann USB Appset device
    usb: gadget: eem: fix echo command packet response issue
    net: can: ems_usb: fix use-after-free in ems_usb_disconnect()
    Input: usbtouchscreen - fix control-request directions
    media: dvb-usb: fix wrong definition
  * ALSA: usb-audio: Fix OOB access at proc output
      sound/usb/mixer.c
  * ALSA: usb-audio: fix rate on Ozone Z90 USB headset
      sound/usb/format.c
  * scsi: core: Retry I/O for Notify (Enable Spinup) Required error
      drivers/scsi/scsi_lib.c
  * Revert "clocksource/drivers/timer-ti-dm: Handle dra7 timer wrap errata i940"
      include/linux/cpuhotplug.h
    Merge 4.19.197 into android-4.19-stable
Linux 4.19.197
  * clocksource/drivers/timer-ti-dm: Handle dra7 timer wrap errata i940
      include/linux/cpuhotplug.h
    clocksource/drivers/timer-ti-dm: Prepare to handle dra7 timer wrap issue
    clocksource/drivers/timer-ti-dm: Add clockevent and clocksource support
    ARM: OMAP: replace setup_irq() by request_irq()
    KVM: SVM: Call SEV Guest Decommission if ASID binding fails
    xen/events: reset active flag for lateeoi events later
  * kthread: prevent deadlock when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync()
      kernel/kthread.c
  * kthread_worker: split code for canceling the delayed work timer
      kernel/kthread.c
    ARM: dts: imx6qdl-sabresd: Remove incorrect power supply assignment
    KVM: SVM: Periodically schedule when unregistering regions on destroy
  * ext4: eliminate bogus error in ext4_data_block_valid_rcu()
      fs/ext4/block_validity.c
    drm/nouveau: fix dma_address check for CPU/GPU sync
    scsi: sr: Return appropriate error code when disk is ejected
  * mm, futex: fix shared futex pgoff on shmem huge page
      include/linux/hugetlb.h
      include/linux/pagemap.h
      kernel/futex.c
  * mm/thp: another PVMW_SYNC fix in page_vma_mapped_walk()
      mm/page_vma_mapped.c
  * mm/thp: fix page_vma_mapped_walk() if THP mapped by ptes
      mm/page_vma_mapped.c
  * mm: page_vma_mapped_walk(): get vma_address_end() earlier
      mm/page_vma_mapped.c
  * mm: page_vma_mapped_walk(): use goto instead of while (1)
      mm/page_vma_mapped.c
  * mm: page_vma_mapped_walk(): add a level of indentation
      mm/page_vma_mapped.c
  * mm: page_vma_mapped_walk(): crossing page table boundary
      mm/page_vma_mapped.c
  * mm: page_vma_mapped_walk(): prettify PVMW_MIGRATION block
      mm/page_vma_mapped.c
  * mm: page_vma_mapped_walk(): use pmde for *pvmw->pmd
      mm/page_vma_mapped.c
  * mm: page_vma_mapped_walk(): settle PageHuge on entry
      mm/page_vma_mapped.c
  * mm: page_vma_mapped_walk(): use page for pvmw->page
      mm/page_vma_mapped.c
    mm: thp: replace DEBUG_VM BUG with VM_WARN when unmap fails for split
  * mm/thp: unmap_mapping_page() to fix THP truncate_cleanup_page()
      include/linux/mm.h
      mm/memory.c
      mm/truncate.c
  * mm/thp: fix page_address_in_vma() on file THP tails
      mm/rmap.c
  * mm/thp: fix vma_address() if virtual address below file offset
      mm/internal.h
      mm/page_vma_mapped.c
      mm/rmap.c
  * mm/thp: try_to_unmap() use TTU_SYNC for safe splitting
      include/linux/rmap.h
      mm/page_vma_mapped.c
      mm/rmap.c
  * mm/thp: make is_huge_zero_pmd() safe and quicker
      include/linux/huge_mm.h
  * mm/thp: fix __split_huge_pmd_locked() on shmem migration entry
      mm/pgtable-generic.c
  * mm/rmap: use page_not_mapped in try_to_unmap()
      mm/rmap.c
  * mm/rmap: remove unneeded semicolon in page_not_mapped()
      mm/rmap.c
  * mm: add VM_WARN_ON_ONCE_PAGE() macro
      include/linux/mmdebug.h

Bug: 196282886
Change-Id: I0af3abfa9aaa6da3e884f1a692da381e8e140bee
Signed-off-by: Lucas Wei <lucaswei@google.com>
2021-08-18 20:48:52 +08:00
Greg Kroah-Hartman
97fd50773c Merge 4.19.198 into android-4.19-stable
Changes in 4.19.198
	scsi: core: Retry I/O for Notify (Enable Spinup) Required error
	ALSA: usb-audio: fix rate on Ozone Z90 USB headset
	ALSA: usb-audio: Fix OOB access at proc output
	media: dvb-usb: fix wrong definition
	Input: usbtouchscreen - fix control-request directions
	net: can: ems_usb: fix use-after-free in ems_usb_disconnect()
	usb: gadget: eem: fix echo command packet response issue
	USB: cdc-acm: blacklist Heimann USB Appset device
	usb: dwc3: Fix debugfs creation flow
	usb: typec: Add the missed altmode_id_remove() in typec_register_altmode()
	xhci: solve a double free problem while doing s4
	ntfs: fix validity check for file name attribute
	iov_iter_fault_in_readable() should do nothing in xarray case
	Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl
	arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode
	ARM: dts: at91: sama5d4: fix pinctrl muxing
	btrfs: send: fix invalid path for unlink operations after parent orphanization
	btrfs: clear defrag status of a root if starting transaction fails
	ext4: cleanup in-core orphan list if ext4_truncate() failed to get a transaction handle
	ext4: fix kernel infoleak via ext4_extent_header
	ext4: return error code when ext4_fill_flex_info() fails
	ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit
	ext4: remove check for zero nr_to_scan in ext4_es_scan()
	ext4: fix avefreec in find_group_orlov
	ext4: use ext4_grp_locked_error in mb_find_extent
	can: bcm: delay release of struct bcm_op after synchronize_rcu()
	can: gw: synchronize rcu operations before removing gw job entry
	can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path
	SUNRPC: Fix the batch tasks count wraparound.
	SUNRPC: Should wake up the privileged task firstly.
	s390/cio: dont call css_wait_for_slow_path() inside a lock
	rtc: stm32: Fix unbalanced clk_disable_unprepare() on probe error path
	iio: light: tcs3472: do not free unallocated IRQ
	iio: ltr501: mark register holding upper 8 bits of ALS_DATA{0,1} and PS_DATA as volatile, too
	iio: ltr501: ltr559: fix initialization of LTR501_ALS_CONTR
	iio: ltr501: ltr501_read_ps(): add missing endianness conversion
	serial: sh-sci: Stop dmaengine transfer in sci_stop_tx()
	serial_cs: Add Option International GSM-Ready 56K/ISDN modem
	serial_cs: remove wrong GLOBETROTTER.cis entry
	ath9k: Fix kernel NULL pointer dereference during ath_reset_internal()
	ssb: sdio: Don't overwrite const buffer if block_write fails
	rsi: Assign beacon rate settings to the correct rate_info descriptor field
	rsi: fix AP mode with WPA failure due to encrypted EAPOL
	tracing/histograms: Fix parsing of "sym-offset" modifier
	tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
	seq_buf: Make trace_seq_putmem_hex() support data longer than 8
	powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()
	evm: Execute evm_inode_init_security() only when an HMAC key is loaded
	evm: Refuse EVM_ALLOW_METADATA_WRITES only if an HMAC key is loaded
	fuse: check connected before queueing on fpq->io
	spi: Make of_register_spi_device also set the fwnode
	spi: spi-loopback-test: Fix 'tx_buf' might be 'rx_buf'
	spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages()
	spi: omap-100k: Fix the length judgment problem
	regulator: uniphier: Add missing MODULE_DEVICE_TABLE
	crypto: nx - add missing MODULE_DEVICE_TABLE
	media: cpia2: fix memory leak in cpia2_usb_probe
	media: cobalt: fix race condition in setting HPD
	media: pvrusb2: fix warning in pvr2_i2c_core_done
	crypto: qat - check return code of qat_hal_rd_rel_reg()
	crypto: qat - remove unused macro in FW loader
	sched/fair: Fix ascii art by relpacing tabs
	media: em28xx: Fix possible memory leak of em28xx struct
	media: v4l2-core: Avoid the dangling pointer in v4l2_fh_release
	media: bt8xx: Fix a missing check bug in bt878_probe
	media: st-hva: Fix potential NULL pointer dereferences
	media: dvd_usb: memory leak in cinergyt2_fe_attach
	mmc: via-sdmmc: add a check against NULL pointer dereference
	crypto: shash - avoid comparing pointers to exported functions under CFI
	media: dvb_net: avoid speculation from net slot
	media: siano: fix device register error path
	media: imx-csi: Skip first few frames from a BT.656 source
	btrfs: fix error handling in __btrfs_update_delayed_inode
	btrfs: abort transaction if we fail to update the delayed inode
	btrfs: disable build on platforms having page size 256K
	regulator: da9052: Ensure enough delay time for .set_voltage_time_sel
	HID: do not use down_interruptible() when unbinding devices
	EDAC/ti: Add missing MODULE_DEVICE_TABLE
	ACPI: processor idle: Fix up C-state latency if not ordered
	hv_utils: Fix passing zero to 'PTR_ERR' warning
	lib: vsprintf: Fix handling of number field widths in vsscanf
	ACPI: EC: Make more Asus laptops use ECDT _GPE
	block_dump: remove block_dump feature in mark_inode_dirty()
	fs: dlm: cancel work sync othercon
	random32: Fix implicit truncation warning in prandom_seed_state()
	fs: dlm: fix memory leak when fenced
	ACPICA: Fix memory leak caused by _CID repair function
	ACPI: bus: Call kobject_put() in acpi_init() error path
	platform/x86: toshiba_acpi: Fix missing error code in toshiba_acpi_setup_keyboard()
	clocksource: Retry clock read if long delays detected
	ACPI: tables: Add custom DSDT file as makefile prerequisite
	HID: wacom: Correct base usage for capacitive ExpressKey status bits
	ia64: mca_drv: fix incorrect array size calculation
	media: s5p_cec: decrement usage count if disabled
	crypto: ixp4xx - dma_unmap the correct address
	crypto: ux500 - Fix error return code in hash_hw_final()
	sata_highbank: fix deferred probing
	pata_rb532_cf: fix deferred probing
	media: I2C: change 'RST' to "RSET" to fix multiple build errors
	pata_octeon_cf: avoid WARN_ON() in ata_host_activate()
	evm: fix writing <securityfs>/evm overflow
	crypto: ccp - Fix a resource leak in an error handling path
	media: rc: i2c: Fix an error message
	pata_ep93xx: fix deferred probing
	media: exynos4-is: Fix a use after free in isp_video_release
	media: tc358743: Fix error return code in tc358743_probe_of()
	media: gspca/gl860: fix zero-length control requests
	media: siano: Fix out-of-bounds warnings in smscore_load_firmware_family2()
	mmc: usdhi6rol0: fix error return code in usdhi6_probe()
	media: s5p-g2d: Fix a memory leak on ctx->fh.m2m_ctx
	hwmon: (max31722) Remove non-standard ACPI device IDs
	hwmon: (max31790) Fix fan speed reporting for fan7..12
	btrfs: clear log tree recovering status if starting transaction fails
	spi: spi-sun6i: Fix chipselect/clock bug
	crypto: nx - Fix RCU warning in nx842_OF_upd_status
	ACPI: sysfs: Fix a buffer overrun problem with description_show()
	blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled()
	blk-wbt: make sure throttle is enabled properly
	ocfs2: fix snprintf() checking
	net: mvpp2: Put fwnode in error case during ->probe()
	net: pch_gbe: Propagate error from devm_gpio_request_one()
	drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write()
	ehea: fix error return code in ehea_restart_qps()
	RDMA/rxe: Fix failure during driver load
	drm: qxl: ensure surf.data is ininitialized
	tools/bpftool: Fix error return code in do_batch()
	wireless: carl9170: fix LEDS build errors & warnings
	ieee802154: hwsim: Fix possible memory leak in hwsim_subscribe_all_others
	wcn36xx: Move hal_buf allocation to devm_kmalloc in probe
	ssb: Fix error return code in ssb_bus_scan()
	brcmfmac: fix setting of station info chains bitmask
	brcmfmac: correctly report average RSSI in station info
	brcmsmac: mac80211_if: Fix a resource leak in an error handling path
	ath10k: Fix an error code in ath10k_add_interface()
	netlabel: Fix memory leak in netlbl_mgmt_add_common
	RDMA/mlx5: Don't add slave port to unaffiliated list
	netfilter: nft_exthdr: check for IPv6 packet before further processing
	netfilter: nft_osf: check for TCP packet before further processing
	netfilter: nft_tproxy: restrict support to TCP and UDP transport protocols
	RDMA/rxe: Fix qp reference counting for atomic ops
	samples/bpf: Fix the error return code of xdp_redirect's main()
	net: ethernet: aeroflex: fix UAF in greth_of_remove
	net: ethernet: ezchip: fix UAF in nps_enet_remove
	net: ethernet: ezchip: fix error handling
	pkt_sched: sch_qfq: fix qfq_change_class() error path
	vxlan: add missing rcu_read_lock() in neigh_reduce()
	net/ipv4: swap flow ports when validating source
	ieee802154: hwsim: Fix memory leak in hwsim_add_one
	ieee802154: hwsim: avoid possible crash in hwsim_del_edge_nl()
	mac80211: remove iwlwifi specific workaround NDPs of null_response
	net: bcmgenet: Fix attaching to PYH failed on RPi 4B
	ipv6: exthdrs: do not blindly use init_net
	bpf: Do not change gso_size during bpf_skb_change_proto()
	i40e: Fix error handling in i40e_vsi_open
	i40e: Fix autoneg disabling for non-10GBaseT links
	Revert "ibmvnic: remove duplicate napi_schedule call in open function"
	ibmvnic: free tx_pool if tso_pool alloc fails
	ipv6: fix out-of-bound access in ip6_parse_tlv()
	Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid
	Bluetooth: Fix handling of HCI_LE_Advertising_Set_Terminated event
	writeback: fix obtain a reference to a freeing memcg css
	net: lwtunnel: handle MTU calculation in forwading
	net: sched: fix warning in tcindex_alloc_perfect_hash
	RDMA/mlx5: Don't access NULL-cleared mpi pointer
	tty: nozomi: Fix a resource leak in an error handling function
	mwifiex: re-fix for unaligned accesses
	iio: adis_buffer: do not return ints in irq handlers
	iio: accel: bma180: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: bma220: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: hid: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: kxcjk-1013: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: stk8312: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: stk8ba50: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: ti-ads1015: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: vf610: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: gyro: bmg160: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: humidity: am2315: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: srf08: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: pulsed-light: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: as3935: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: light: isl29125: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: light: tcs3414: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: light: tcs3472: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: potentiostat: lmp91000: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup()
	ASoC: rsnd: tidyup loop on rsnd_adg_clk_query()
	Input: hil_kbd - fix error return code in hil_dev_connect()
	char: pcmcia: error out if 'num_bytes_read' is greater than 4 in set_protocol()
	tty: nozomi: Fix the error handling path of 'nozomi_card_init()'
	scsi: FlashPoint: Rename si_flags field
	fsi: core: Fix return of error values on failures
	fsi: scom: Reset the FSI2PIB engine for any error
	fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE
	fsi/sbefifo: Fix reset timeout
	visorbus: fix error return code in visorchipset_init()
	s390: appldata depends on PROC_SYSCTL
	eeprom: idt_89hpesx: Put fwnode in matching case during ->probe()
	eeprom: idt_89hpesx: Restore printing the unsupported fwnode name
	iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: mxs-lradc: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: ti-ads8688: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	staging: gdm724x: check for buffer overflow in gdm_lte_multi_sdu_pkt()
	staging: gdm724x: check for overflow in gdm_lte_netif_rx()
	staging: mt7621-dts: fix pci address for PCI memory range
	serial: 8250: Actually allow UPF_MAGIC_MULTIPLIER baud rates
	iio: prox: isl29501: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK
	of: Fix truncation of memory sizes on 32-bit platforms
	mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
	scsi: mpt3sas: Fix error return value in _scsih_expander_add()
	phy: ti: dm816x: Fix the error handling path in 'dm816x_usb_phy_probe()
	extcon: sm5502: Drop invalid register write in sm5502_reg_data
	extcon: max8997: Add missing modalias string
	ASoC: atmel-i2s: Fix usage of capture and playback at the same time
	configfs: fix memleak in configfs_release_bin_file
	leds: as3645a: Fix error return code in as3645a_parse_node()
	leds: ktd2692: Fix an error handling path
	powerpc: Offline CPU in stop_this_cpu()
	serial: mvebu-uart: correctly calculate minimal possible baudrate
	arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
	vfio/pci: Handle concurrent vma faults
	mm/huge_memory.c: don't discard hugepage if other processes are mapping it
	selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random
	perf llvm: Return -ENOMEM when asprintf() fails
	mmc: block: Disable CMDQ on the ioctl path
	mmc: vub3000: fix control-request direction
	drm/mxsfb: Don't select DRM_KMS_FB_HELPER
	drm/zte: Don't select DRM_KMS_FB_HELPER
	drm/amd/amdgpu/sriov disable all ip hw status by default
	net: pch_gbe: Use proper accessors to BE data in pch_ptp_match()
	drm/amd/display: fix use_max_lb flag for 420 pixel formats
	hugetlb: clear huge pte during flush function on mips platform
	atm: iphase: fix possible use-after-free in ia_module_exit()
	mISDN: fix possible use-after-free in HFC_cleanup()
	atm: nicstar: Fix possible use-after-free in nicstar_cleanup()
	net: Treat __napi_schedule_irqoff() as __napi_schedule() on PREEMPT_RT
	reiserfs: add check for invalid 1st journal block
	drm/virtio: Fix double free on probe failure
	udf: Fix NULL pointer dereference in udf_symlink function
	e100: handle eeprom as little endian
	clk: renesas: r8a77995: Add ZA2 clock
	clk: tegra: Ensure that PLLU configuration is applied properly
	ipv6: use prandom_u32() for ID generation
	RDMA/cxgb4: Fix missing error code in create_qp()
	dm space maps: don't reset space map allocation cursor when committing
	pinctrl: mcp23s08: fix race condition in irq handler
	ice: set the value of global config lock timeout longer
	virtio_net: Remove BUG() to avoid machine dead
	net: bcmgenet: check return value after calling platform_get_resource()
	net: mvpp2: check return value after calling platform_get_resource()
	net: micrel: check return value after calling platform_get_resource()
	fjes: check return value after calling platform_get_resource()
	selinux: use __GFP_NOWARN with GFP_NOWAIT in the AVC
	xfrm: Fix error reporting in xfrm_state_construct.
	wlcore/wl12xx: Fix wl12xx get_mac error if device is in ELP
	wl1251: Fix possible buffer overflow in wl1251_cmd_scan
	cw1200: add missing MODULE_DEVICE_TABLE
	net: fix mistake path for netdev_features_strings
	rtl8xxxu: Fix device info for RTL8192EU devices
	MIPS: add PMD table accounting into MIPS'pmd_alloc_one
	atm: nicstar: use 'dma_free_coherent' instead of 'kfree'
	atm: nicstar: register the interrupt handler in the right place
	vsock: notify server to shutdown when client has pending signal
	RDMA/rxe: Don't overwrite errno from ib_umem_get()
	iwlwifi: mvm: don't change band on bound PHY contexts
	iwlwifi: pcie: free IML DMA memory allocation
	sfc: avoid double pci_remove of VFs
	sfc: error code if SRIOV cannot be disabled
	wireless: wext-spy: Fix out-of-bounds warning
	media, bpf: Do not copy more entries than user space requested
	net: ip: avoid OOM kills with large UDP sends over loopback
	RDMA/cma: Fix rdma_resolve_route() memory leak
	Bluetooth: Fix the HCI to MGMT status conversion table
	Bluetooth: Shutdown controller after workqueues are flushed or cancelled
	Bluetooth: btusb: fix bt fiwmare downloading failure issue for qca btsoc.
	sctp: validate from_addr_param return
	sctp: add size validation when walking chunks
	MIPS: set mips32r5 for virt extensions
	fscrypt: don't ignore minor_hash when hash is 0
	bdi: Do not use freezable workqueue
	serial: mvebu-uart: clarify the baud rate derivation
	serial: mvebu-uart: fix calculation of clock divisor
	fuse: reject internal errno
	powerpc/barrier: Avoid collision with clang's __lwsync macro
	usb: gadget: f_fs: Fix setting of device and driver data cross-references
	drm/radeon: Add the missed drm_gem_object_put() in radeon_user_framebuffer_create()
	drm/amd/display: fix incorrrect valid irq check
	pinctrl/amd: Add device HID for new AMD GPIO controller
	drm/msm/mdp4: Fix modifier support enabling
	mmc: sdhci: Fix warning message when accessing RPMB in HS400 mode
	mmc: core: clear flags before allowing to retune
	mmc: core: Allow UHS-I voltage switch for SDSC cards if supported
	ata: ahci_sunxi: Disable DIPM
	cpu/hotplug: Cure the cpusets trainwreck
	clocksource/arm_arch_timer: Improve Allwinner A64 timer workaround
	ASoC: tegra: Set driver_name=tegra for all machine drivers
	qemu_fw_cfg: Make fw_cfg_rev_attr a proper kobj_attribute
	ipmi/watchdog: Stop watchdog timer when the current action is 'none'
	power: supply: ab8500: Fix an old bug
	seq_buf: Fix overflow in seq_buf_putmem_hex()
	tracing: Simplify & fix saved_tgids logic
	tracing: Resize tgid_map to pid_max, not PID_MAX_DEFAULT
	ipack/carriers/tpci200: Fix a double free in tpci200_pci_probe
	coresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer()
	dm btree remove: assign new_root only when removal succeeds
	PCI: Leave Apple Thunderbolt controllers on for s2idle or standby
	PCI: aardvark: Fix checking for PIO Non-posted Request
	media: subdev: disallow ioctl for saa6588/davinci
	media: dtv5100: fix control-request directions
	media: zr364xx: fix memory leak in zr364xx_start_readpipe
	media: gspca/sq905: fix control-request direction
	media: gspca/sunplus: fix zero-length control requests
	media: uvcvideo: Fix pixel format change for Elgato Cam Link 4K
	pinctrl: mcp23s08: Fix missing unlock on error in mcp23s08_irq()
	jfs: fix GPF in diFree
	smackfs: restrict bytes count in smk_set_cipso()
	KVM: x86: Use guest MAXPHYADDR from CPUID.0x8000_0008 iff TDP is enabled
	KVM: X86: Disable hardware breakpoints unconditionally before kvm_x86->run()
	scsi: core: Fix bad pointer dereference when ehandler kthread is invalid
	tracing: Do not reference char * as a string in histograms
	PCI: aardvark: Don't rely on jiffies while holding spinlock
	PCI: aardvark: Fix kernel panic during PIO transfer
	tty: serial: fsl_lpuart: fix the potential risk of division or modulo by zero
	misc/libmasm/module: Fix two use after free in ibmasm_init_one
	Revert "ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro"
	w1: ds2438: fixing bug that would always get page0
	scsi: lpfc: Fix "Unexpected timeout" error in direct attach topology
	scsi: lpfc: Fix crash when lpfc_sli4_hba_setup() fails to initialize the SGLs
	scsi: core: Cap scsi_host cmd_per_lun at can_queue
	ALSA: ac97: fix PM reference leak in ac97_bus_remove()
	tty: serial: 8250: serial_cs: Fix a memory leak in error handling path
	scsi: scsi_dh_alua: Check for negative result value
	fs/jfs: Fix missing error code in lmLogInit()
	scsi: iscsi: Add iscsi_cls_conn refcount helpers
	scsi: iscsi: Fix conn use after free during resets
	scsi: iscsi: Fix shost->max_id use
	scsi: qedi: Fix null ref during abort handling
	mfd: da9052/stmpe: Add and modify MODULE_DEVICE_TABLE
	s390/sclp_vt220: fix console name to match device
	selftests: timers: rtcpie: skip test if default RTC device does not exist
	ALSA: sb: Fix potential double-free of CSP mixer elements
	powerpc/ps3: Add dma_mask to ps3_dma_region
	gpio: zynq: Check return value of pm_runtime_get_sync
	ALSA: ppc: fix error return code in snd_pmac_probe()
	selftests/powerpc: Fix "no_handler" EBB selftest
	gpio: pca953x: Add support for the On Semi pca9655
	ASoC: soc-core: Fix the error return code in snd_soc_of_parse_audio_routing()
	Input: hideep - fix the uninitialized use in hideep_nvm_unlock()
	ALSA: bebob: add support for ToneWeal FW66
	usb: gadget: f_hid: fix endianness issue with descriptors
	usb: gadget: hid: fix error return code in hid_bind()
	powerpc/boot: Fixup device-tree on little endian
	backlight: lm3630a: Fix return code of .update_status() callback
	ALSA: hda: Add IRQ check for platform_get_irq()
	staging: rtl8723bs: fix macro value for 2.4Ghz only device
	intel_th: Wait until port is in reset before programming it
	i2c: core: Disable client irq on reboot/shutdown
	lib/decompress_unlz4.c: correctly handle zero-padding around initrds.
	pwm: spear: Don't modify HW state in .remove callback
	power: supply: ab8500: Avoid NULL pointers
	power: supply: max17042: Do not enforce (incorrect) interrupt trigger type
	power: reset: gpio-poweroff: add missing MODULE_DEVICE_TABLE
	ARM: 9087/1: kprobes: test-thumb: fix for LLVM_IAS=1
	watchdog: Fix possible use-after-free in wdt_startup()
	watchdog: sc520_wdt: Fix possible use-after-free in wdt_turnoff()
	watchdog: Fix possible use-after-free by calling del_timer_sync()
	watchdog: iTCO_wdt: Account for rebooting on second timeout
	x86/fpu: Return proper error codes from user access functions
	PCI: tegra: Add missing MODULE_DEVICE_TABLE
	orangefs: fix orangefs df output.
	ceph: remove bogus checks and WARN_ONs from ceph_set_page_dirty
	NFS: nfs_find_open_context() may only select open files
	power: supply: charger-manager: add missing MODULE_DEVICE_TABLE
	power: supply: ab8500: add missing MODULE_DEVICE_TABLE
	pwm: tegra: Don't modify HW state in .remove callback
	ACPI: AMBA: Fix resource name in /proc/iomem
	ACPI: video: Add quirk for the Dell Vostro 3350
	virtio-blk: Fix memory leak among suspend/resume procedure
	virtio_net: Fix error handling in virtnet_restore()
	virtio_console: Assure used length from device is limited
	f2fs: add MODULE_SOFTDEP to ensure crc32 is included in the initramfs
	PCI/sysfs: Fix dsm_label_utf16s_to_utf8s() buffer overrun
	power: supply: rt5033_battery: Fix device tree enumeration
	NFSv4: Initialise connection to the server in nfs4_alloc_client()
	um: fix error return code in slip_open()
	um: fix error return code in winch_tramp()
	watchdog: aspeed: fix hardware timeout calculation
	nfs: fix acl memory leak of posix_acl_create()
	ubifs: Set/Clear I_LINKABLE under i_lock for whiteout inode
	PCI: iproc: Fix multi-MSI base vector number allocation
	PCI: iproc: Support multi-MSI only on uniprocessor kernel
	x86/fpu: Limit xstate copy size in xstateregs_set()
	virtio_net: move tx vq operation under tx queue lock
	ALSA: isa: Fix error return code in snd_cmi8330_probe()
	NFSv4/pNFS: Don't call _nfs4_pnfs_v3_ds_connect multiple times
	hexagon: use common DISCARDS macro
	reset: a10sr: add missing of_match_table reference
	ARM: dts: exynos: fix PWM LED max brightness on Odroid XU/XU3
	ARM: dts: exynos: fix PWM LED max brightness on Odroid HC1
	ARM: dts: exynos: fix PWM LED max brightness on Odroid XU4
	memory: atmel-ebi: add missing of_node_put for loop iteration
	rtc: fix snprintf() checking in is_rtc_hctosys()
	arm64: dts: renesas: v3msk: Fix memory size
	ARM: dts: r8a7779, marzen: Fix DU clock names
	ARM: dts: BCM5301X: Fixup SPI binding
	reset: bail if try_module_get() fails
	memory: fsl_ifc: fix leak of IO mapping on probe failure
	memory: fsl_ifc: fix leak of private memory on probe failure
	ARM: dts: am335x: align ti,pindir-d0-out-d1-in property with dt-shema
	ARM: dts: am437x: align ti,pindir-d0-out-d1-in property with dt-shema
	ARM: dts: imx6q-dhcom: Fix ethernet reset time properties
	ARM: dts: imx6q-dhcom: Fix ethernet plugin detection problems
	ARM: dts: imx6q-dhcom: Add gpios pinctrl for i2c bus recovery
	scsi: be2iscsi: Fix an error handling path in beiscsi_dev_probe()
	mips: always link byteswap helpers into decompressor
	mips: disable branch profiling in boot/decompress.o
	MIPS: vdso: Invalid GIC access through VDSO
	net: bridge: multicast: fix PIM hello router port marking race
	scsi: scsi_dh_alua: Fix signedness bug in alua_rtpg()
	seq_file: disallow extremely large seq buffer allocations
	Linux 4.19.198

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iaa8a95c4d30ca85021bae6c60b4818038797e04e
2021-07-20 16:38:59 +02:00
Richard Fitzgerald
8278bf4874 lib: vsprintf: Fix handling of number field widths in vsscanf
[ Upstream commit 900fdc4573766dd43b847b4f54bd4a1ee2bc7360 ]

The existing code attempted to handle numbers by doing a strto[u]l(),
ignoring the field width, and then repeatedly dividing to extract the
field out of the full converted value. If the string contains a run of
valid digits longer than will fit in a long or long long, this would
overflow and no amount of dividing can recover the correct value.

This patch fixes vsscanf() to obey number field widths when parsing
the number.

A new _parse_integer_limit() is added that takes a limit for the number
of characters to parse. The number field conversion in vsscanf is changed
to use this new function.

If a number starts with a radix prefix, the field width  must be long
enough for at last one digit after the prefix. If not, it will be handled
like this:

 sscanf("0x4", "%1i", &i): i=0, scanning continues with the 'x'
 sscanf("0x4", "%2i", &i): i=0, scanning continues with the '4'

This is consistent with the observed behaviour of userland sscanf.

Note that this patch does NOT fix the problem of a single field value
overflowing the target type. So for example:

  sscanf("123456789abcdef", "%x", &i);

Will not produce the correct result because the value obviously overflows
INT_MAX. But sscanf will report a successful conversion.

Note that where a very large number is used to mean "unlimited", the value
INT_MAX is used for consistency with the behaviour of vsnprintf().

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20210514161206.30821-2-rf@opensource.cirrus.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-20 16:15:45 +02:00
Ioannis Ilkos
1a576e8a09 ANDROID: add ion_stat tracepoint
Emitted an event whenever ion buffers are created or freed.
This enables tracking ion memory utilization changes, as well as
individual buffer allocations.

This was inspired by the pixel kernel patches by timmurray@ and
carmenjackson@.

Cherry-picked from ACK 4.19 (original patch aosp/1288725). At this point
the kernels have diverged. Pixel defines custom ion tracepoints in
include/trace/events/ion.h which do not exist upstream. ACK defines
ion tracepoints in the ion driver.

Test: build
Bug: 154302786
Bug: 153676730
Bug: 173092118
Signed-off-by: Ioannis Ilkos <ilkos@google.com>
Change-Id: I5e1483ac5f04c8456358639d4c23cf778c625352
Signed-off-by: Lucas Wei <lucaswei@google.com>
2021-03-17 10:55:06 +08:00
Ioannis Ilkos
15207c2985 ANDROID: add ion_stat tracepoint to common kernel
Emitted an event whenever ion buffers are created or freed.
This enables tracking ion memory utilization changes, as well as
individual buffer allocations.

This was inspired by the pixel kernel patches by timmurray@ and
carmenjackson@.

Test: manual test on cuttlefish
Bug: 154302786
Change-Id: I4d4b23ae4dbda5012d3582f5564a87e0d08c68c7
Signed-off-by: Ioannis Ilkos <ilkos@google.com>
2020-04-21 22:35:57 +01:00
Ivaylo Georgiev
4c30d46517 Merge android-4.19.95 (5da1114) into msm-4.19
* refs/heads/tmp-5da1114:
  Revert crypto changes from android-4.19.79-95
  Revert "UPSTREAM: PM / wakeup updates"
  Revert "ANDROID: of: property: Enable of_devlink by default"
  Revert "UPSTREAM: dt-bindings: arm: coresight: Add support for coresight-loses-context-with-cpu"
  UPSTREAM: net: usbnet: Fix -Wcast-function-type
  UPSTREAM: USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein
  UPSTREAM: USB: dummy-hcd: increase max number of devices to 32
  ANDROID: tty: serdev: Fix broken serial console input
  ANDROID: update kernel ABI (perf_event changes)
  BACKPORT: perf_event: Add support for LSM and SELinux checks
  UPSTREAM: iommu: Allow io-pgtable to be used outside of drivers/iommu/
  ANDROID: update abi for 4.19.94 release
  ANDROID: update abi due to revert
  Revert "BACKPORT: perf_event: Add support for LSM and SELinux checks"
  UPSTREAM: selinux: sidtab reverse lookup hash table
  UPSTREAM: selinux: avoid atomic_t usage in sidtab
  UPSTREAM: selinux: check sidtab limit before adding a new entry
  UPSTREAM: selinux: fix context string corruption in convert_context()
  UPSTREAM: selinux: overhaul sidtab to fix bug and improve performance
  UPSTREAM: selinux: refactor mls_context_to_sid() and make it stricter
  UPSTREAM: selinux: use separate table for initial SID lookup
  UPSTREAM: selinux: make "selinux_policycap_names[]" const char *
  UPSTREAM: selinux: refactor sidtab conversion
  ANDROID: Update ABI representation
  ANDROID: GKI: clk: Don't disable unused clocks with sync state support
  ANDROID: GKI: clk: Add support for clock providers with sync state
  ANDROID: GKI: driver core: Add dev_has_sync_state()
  ANDROID: update kernel ABI representation
  BACKPORT: perf_event: Add support for LSM and SELinux checks
  ANDROID: update ABI representation
  UPSTREAM: exit: panic before exit_mm() on global init exit
  ANDROID: serdev: Fix platform device support
  ANDROID: Kconfig.gki: Add Hidden SPRD DRM configs
  ANDROID: gki_defconfig: Disable TRANSPARENT_HUGEPAGE
  ANDROID: gki_defconfig: Enable CONFIG_GNSS_CMDLINE_SERIAL
  ANDROID: gnss: Add command line test driver
  ANDROID: serdev: add platform device support
  ANDROID: gki_defconfig: enable ARM64_SW_TTBR0_PAN
  ANDROID: gki_defconfig: Set BINFMT_MISC as =m
  UPSTREAM: binder: fix incorrect calculation for num_valid
  ABI: Update ABI after f2fs merge
  ANDROID: add initial ABI whitelist for android-4.19
  ANDROID: staging: android: ion: Fix build when CONFIG_ION_SYSTEM_HEAP=n
  ANDROID: staging: android: ion: Expose total heap and pool sizes via sysfs
  ANDROID: Update ABI representation due to vmstat counter changes
  UPSTREAM: include/linux/slab.h: fix sparse warning in kmalloc_type()
  UPSTREAM: mm, slab: shorten kmalloc cache names for large sizes
  UPSTREAM: mm, proc: add KReclaimable to /proc/meminfo
  UPSTREAM: mm: rename and change semantics of nr_indirectly_reclaimable_bytes
  UPSTREAM: dcache: allocate external names from reclaimable kmalloc caches
  UPSTREAM: mm, slab/slub: introduce kmalloc-reclaimable caches
  UPSTREAM: mm, slab: combine kmalloc_caches and kmalloc_dma_caches
  ANDROID: abi update for 4.19.89
  ANDROID: update abi_gki_aarch64.xml for LTO, CFI, and SCS
  ANDROID: gki_defconfig: enable LTO, CFI, and SCS
  ANDROID: update abi_gki_aarch64.xml for CONFIG_GNSS
  ANDROID: cuttlefish_defconfig: Enable CONFIG_GNSS
  UPSTREAM: arm64: Validate tagged addresses in access_ok() called from kernel threads
  ANDROID: mm: Throttle rss_stat tracepoint
  UPSTREAM: mm: slub: really fix slab walking for init_on_free
  ANDROID: update abi_gki_aarch64.xml for nf change
  ANDROID: kbuild: limit LTO inlining
  ANDROID: kbuild: merge module sections with LTO
  ANDROID: netfilter: nf_nat: remove static from nf_nat_ipv4_fn
  UPSTREAM: drm/client: remove the exporting of drm_client_close
  ANDROID: f2fs: fix possible merge of unencrypted with encrypted I/O
  UPSTREAM: binder: Add binder_proc logging to binderfs
  UPSTREAM: binder: Make transaction_log available in binderfs
  UPSTREAM: binder: Add stats, state and transactions files
  UPSTREAM: binder: add a mount option to show global stats
  UPSTREAM: binder: Validate the default binderfs device names.
  UPSTREAM: binder: Add default binder devices through binderfs when configured
  UPSTREAM: binder: fix CONFIG_ANDROID_BINDER_DEVICES
  UPSTREAM: android: binder: use kstrdup instead of open-coding it
  UPSTREAM: binderfs: remove separate device_initcall()
  UPSTREAM: binderfs: respect limit on binder control creation
  UPSTREAM: binderfs: switch from d_add() to d_instantiate()
  UPSTREAM: binderfs: drop lock in binderfs_binder_ctl_create
  UPSTREAM: binderfs: kill_litter_super() before cleanup
  UPSTREAM: binderfs: rework binderfs_binder_device_create()
  UPSTREAM: binderfs: rework binderfs_fill_super()
  UPSTREAM: binderfs: prevent renaming the control dentry
  UPSTREAM: binderfs: remove outdated comment
  UPSTREAM: binderfs: fix error return code in binderfs_fill_super()
  UPSTREAM: binderfs: handle !CONFIG_IPC_NS builds
  UPSTREAM: binderfs: reserve devices for initial mount
  UPSTREAM: binderfs: rename header to binderfs.h
  UPSTREAM: binderfs: implement "max" mount option
  UPSTREAM: binderfs: make each binderfs mount a new instance
  UPSTREAM: binderfs: remove wrong kern_mount() call
  UPSTREAM: binder: implement binderfs
  UPSTREAM: binder: remove BINDER_DEBUG_ENTRY()
  ANDROID: Don't base allmodconfig on gki_defconfig
  ANDROID: Disable UNWINDER_ORC for allmodconfig
  ANDROID: update abi_gki_aarch64.xml for 4.19.87
  BACKPORT: ARM: 8905/1: Emit __gnu_mcount_nc when using Clang 10.0.0 or newer
  ANDROID: update abi_gki_aarch64.xml
  ANDROID: gki_defconfig: =m's applied for virtio configs in arm64
  UPSTREAM: of: property: Add device link support for interrupt-parent, dmas and -gpio(s)
  UPSTREAM: of: property: Add device link support for "iommu-map"
  UPSTREAM: of: property: Fix the semantics of of_is_ancestor_of()
  UPSTREAM: i2c: of: Populate fwnode in of_i2c_get_board_info()
  UPSTREAM: driver core: Clarify documentation for fwnode_operations.add_links()
  UPSTREAM: dt-bindings: arm: coresight: Add support for coresight-loses-context-with-cpu
  BACKPORT: coresight: etm4x: Save/restore state across CPU low power states
  ANDROID: Update ABI representation
  ANDROID: gki_defconfig: IIO=y
  f2fs: stop GC when the victim becomes fully valid
  f2fs: expose main_blkaddr in sysfs
  f2fs: choose hardlimit when softlimit is larger than hardlimit in f2fs_statfs_project()
  f2fs: Fix deadlock in f2fs_gc() context during atomic files handling
  f2fs: show f2fs instance in printk_ratelimited
  f2fs: fix potential overflow
  f2fs: fix to update dir's i_pino during cross_rename
  f2fs: support aligned pinned file
  f2fs: avoid kernel panic on corruption test
  f2fs: fix wrong description in document
  f2fs: cache global IPU bio
  f2fs: fix to avoid memory leakage in f2fs_listxattr
  f2fs: check total_segments from devices in raw_super
  f2fs: update multi-dev metadata in resize_fs
  f2fs: mark recovery flag correctly in read_raw_super_block()
  f2fs: fix to update time in lazytime mode
  vfs: don't allow writes to swap files
  mm: set S_SWAPFILE on blockdev swap devices
  BACKPORT: ARM: 8900/1: UNWINDER_FRAME_POINTER implementation for Clang
  ANDROID: update abi_gki_aarch64.xml for 4.19.87
  ANDROID: gki_defconfig: FW_CACHE to no
  FROMGIT: firmware_class: make firmware caching configurable
  FROMLIST: arm64: implement Shadow Call Stack
  FROMLIST: arm64: disable SCS for hypervisor code
  BACKPORT: FROMLIST: arm64: vdso: disable Shadow Call Stack
  FROMLIST: arm64: efi: restore x18 if it was corrupted
  FROMLIST: arm64: preserve x18 when CPU is suspended
  FROMLIST: arm64: reserve x18 from general allocation with SCS
  FROMLIST: arm64: disable function graph tracing with SCS
  FROMLIST: scs: add support for stack usage debugging
  FROMLIST: scs: add accounting
  FROMLIST: add support for Clang's Shadow Call Stack (SCS)
  FROMLIST: arm64: kernel: avoid x18 in __cpu_soft_restart
  FROMLIST: arm64: kvm: stop treating register x18 as caller save
  FROMLIST: arm64/lib: copy_page: avoid x18 register in assembler code
  FROMLIST: arm64: mm: avoid x18 in idmap_kpti_install_ng_mappings
  ANDROID: use non-canonical CFI jump tables
  ANDROID: arm64: add __nocfi to __apply_alternatives
  ANDROID: arm64: add __pa_function
  ANDROID: arm64: allow ThinLTO to be selected
  ANDROID: soc/tegra: disable ARCH_TEGRA_210_SOC with LTO
  FROMLIST: arm64: fix alternatives with LLVM's integrated assembler
  ANDROID: irqchip/gic-v3: rename gic_of_init to work around a ThinLTO+CFI bug
  ANDROID: init: ensure initcall ordering with LTO
  Revert "ANDROID: init: ensure initcall ordering with LTO"
  ANDROID: add support for ThinLTO
  ANDROID: clang: update to 10.0.1
  ANDROID: gki_defconfig: enable CONFIG_REGULATOR_FIXED_VOLTAGE
  ANDROID: gki_defconfig: removed CONFIG_PM_WAKELOCKS
  ANDROID: gki_defconfig: enable CONFIG_IKHEADERS as m
  FROMGIT: pinctrl: devicetree: Avoid taking direct reference to device name string
  ANDROID: update abi_gki_aarch64.xml for 4.19.86 update
  ANDROID: Update ABI representation
  ANDROID: gki_defconfig: disable FUNCTION_TRACER
  ANDROID: Update the ABI representation
  ANDROID: update ABI representation
  ANDROID: add unstripped modules to the distribution
  FROMLIST: vsprintf: Inline call to ptr_to_hashval
  UPSTREAM: rss_stat: Add support to detect RSS updates of external mm
  UPSTREAM: mm: emit tracepoint when RSS changes
  FROMGIT: driver core: Allow device link operations inside sync_state()
  ANDROID: uid_sys_stats: avoid double accounting of dying threads
  ANDROID: scsi: ufs-qcom: Enable BROKEN_CRYPTO quirk flag
  ANDROID: scsi: ufs-hisi: Enable BROKEN_CRYPTO quirk flag
  ANDROID: scsi: ufs: Add quirk bit for controllers that don't play well with inline crypto
  ANDROID: scsi: ufs: UFS init should not require inline crypto
  ANDROID: scsi: ufs: UFS crypto variant operations API
  ANDROID: gki_defconfig: enable inline encryption
  BACKPORT: FROMLIST: ext4: add inline encryption support
  BACKPORT: FROMLIST: f2fs: add inline encryption support
  BACKPORT: FROMLIST: fscrypt: add inline encryption support
  BACKPORT: FROMLIST: scsi: ufs: Add inline encryption support to UFS
  BACKPORT: FROMLIST: scsi: ufs: UFS crypto API
  BACKPORT: FROMLIST: scsi: ufs: UFS driver v2.1 spec crypto additions
  BACKPORT: FROMLIST: block: blk-crypto for Inline Encryption
  ANDROID: block: Fix bio_crypt_should_process WARN_ON
  BACKPORT: FROMLIST: block: Add encryption context to struct bio
  BACKPORT: FROMLIST: block: Keyslot Manager for Inline Encryption
  FROMLIST: f2fs: add support for IV_INO_LBLK_64 encryption policies
  FROMLIST: ext4: add support for IV_INO_LBLK_64 encryption policies
  BACKPORT: FROMLIST: fscrypt: add support for IV_INO_LBLK_64 policies
  FROMLIST: fscrypt: zeroize fscrypt_info before freeing
  FROMLIST: fscrypt: remove struct fscrypt_ctx
  BACKPORT: FROMLIST: fscrypt: invoke crypto API for ESSIV handling
  ANDROID: build kernels with llvm-nm and llvm-objcopy
  ANDROID: Fix allmodconfig build with CC=clang
  UPSTREAM: mm/page_poison: expose page_poisoning_enabled to kernel modules
  FROMGIT: of: property: Add device link support for iommus, mboxes and io-channels
  FROMGIT: of: property: Make it easy to add device links from DT properties
  FROMGIT: of: property: Minor style clean up of of_link_to_phandle()
  Revert "ANDROID: of/property: Add device link support for iommus"
  ANDROID: Add allmodconfig build.configs for x86_64 and aarch64
  ANDROID: fix allmodconfig build
  ANDROID: nf: IDLETIMER: Fix possible use before initialization in idletimer_resume
  BACKPORT: coresight: funnel: Support static funnel
  BACKPORT:FROMGIT: coresight: replicator: Fix missing spin_lock_init()
  BACKPORT:FROMGIT: coresight: funnel: Fix missing spin_lock_init()
  BACKPORT:FROMGIT: coresight: Serialize enabling/disabling a link device.
  UPSTREAM: coresight: tmc-etr: Add barrier packets when moving offset forward
  UPSTREAM: coresight: tmc-etr: Decouple buffer sync and barrier packet insertion
  UPSTREAM: coresight: tmc: Make memory width mask computation into a function
  UPSTREAM: coresight: tmc-etr: Fix perf_data check
  UPSTREAM: coresight: tmc-etr: Fix updating buffer in not-snapshot mode.
  UPSTREAM: coresight: tmc-etr: Check if non-secure access is enabled
  UPSTREAM: coresight: tmc-etr: Handle memory errors
  BACKPORT: coresight: etr_buf: Consolidate refcount initialization
  UPSTREAM: coresight: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute
  UPSTREAM: coresight: Use coresight device names for sinks in PMU attribute
  UPSTREAM: coresight: tmc-etr: alloc_perf_buf: Do not call smp_processor_id from preemptible
  UPSTREAM: coresight: tmc-etr: Do not call smp_processor_id() from preemptible
  UPSTREAM: coresight: perf: Don't set the truncated flag in snapshot mode
  UPSTREAM: coresight: tmc-etf: Fix snapshot mode update function
  UPSTREAM: coresight: tmc-etr: Properly set AUX buffer head in snapshot mode
  UPSTREAM: coresight: tmc-etr: Add support for CPU-wide trace scenarios
  UPSTREAM: coresight: tmc-etr: Allocate and free ETR memory buffers for CPU-wide scenarios
  UPSTREAM: coresight: tmc-etr: Introduce the notion of IDR to ETR devices
  UPSTREAM: coresight: tmc-etr: Introduce the notion of reference counting to ETR devices
  UPSTREAM: coresight: tmc-etr: Introduce the notion of process ID to ETR devices
  UPSTREAM: coresight: tmc-etr: Create per-thread buffer allocation function
  UPSTREAM: coresight: tmc-etr: Refactor function tmc_etr_setup_perf_buf()
  UPSTREAM: coresight: Communicate perf event to sink buffer allocation functions
  UPSTREAM: coresight: perf: Refactor function free_event_data()
  UPSTREAM: coresight: perf: Clean up function etm_setup_aux()
  UPSTREAM: coresight: Properly address concurrency in sink::update() functions
  UPSTREAM: coresight: Properly address errors in sink::disable() functions
  UPSTREAM: coresight: Move reference counting inside sink drivers
  UPSTREAM: coresight: Adding return code to sink::disable() operation
  UPSTREAM: coresight: etm4x: Configure tracers to emit timestamps
  UPSTREAM: coresight: etm4x: Skip selector pair 0
  UPSTREAM: coresight: etm4x: Add kernel configuration for CONTEXTID
  UPSTREAM: coresight: pmu: Adding ITRACE property to cs_etm PMU
  UPSTREAM: coresight: tmc: Cleanup power management
  UPSTREAM: coresight: Fix freeing up the coresight connections
  UPSTREAM: coresight: tmc: Report DMA setup failures
  UPSTREAM: coresight: catu: fix clang build warning
  UPSTREAM: perf/core: Fix the address filtering fix
  UPSTREAM: perf, pt, coresight: Fix address filters for vmas with non-zero offset
  UPSTREAM: perf: Copy parent's address filter offsets on clone
  UPSTREAM: coresight: Use event attributes for sink selection
  UPSTREAM: coresight: perf: Add "sinks" group to PMU directory
  UPSTREAM: coresight: etb10: Add support for CLAIM tag
  UPSTREAM: coreisght: tmc: Claim device before use
  UPSTREAM: coresight: dynamic-replicator: Claim device for use
  UPSTREAM: coresight: funnel: Claim devices before use
  UPSTREAM: coresight: etmx: Claim devices before use
  UPSTREAM: coresight: Add support for CLAIM tag protocol
  UPSTREAM: coresight: dynamic-replicator: Handle multiple connections
  UPSTREAM: coresight: etb10: Handle errors enabling the device
  UPSTREAM: coresight: etm3: Add support for handling errors
  UPSTREAM: coresight: etm4x: Add support for handling errors
  UPSTREAM: coresight: tmc-etb/etf: Prepare to handle errors enabling
  UPSTREAM: coresight: tmc-etr: Handle errors enabling CATU
  UPSTREAM: coresight: tmc-etr: Refactor for handling errors
  UPSTREAM: coresight: Handle failures in enabling a trace path
  UPSTREAM: coresight: tmc: Fix byte-address alignment for RRP
  UPSTREAM: coresight: etm4x: Configure EL2 exception level when kernel is running in HYP
  UPSTREAM: coresight: etb10: Splitting function etb_enable()
  UPSTREAM: coresight: etb10: Refactor etb_drvdata::mode handling
  UPSTREAM: coresight: etm-perf: Add support for ETR backend
  UPSTREAM: coresight: perf: Remove set_buffer call back
  UPSTREAM: coresight: perf: Add helper to retrieve sink configuration
  UPSTREAM: coresight: perf: Remove reset_buffer call back for sinks
  UPSTREAM: coresight: Convert driver messages to dev_dbg
  UPSTREAM: coresight: tmc-etr: Relax collection of trace from sysfs mode
  UPSTREAM: coresight: tmc-etr: Handle driver mode specific ETR buffers
  UPSTREAM: coresight: perf: Disable trace path upon source error
  UPSTREAM: coresight: perf: Allow tracing on hotplugged CPUs
  UPSTREAM: coresight: perf: Avoid unncessary CPU hotplug read lock
  UPSTREAM: coresight: perf: Fix per cpu path management
  UPSTREAM: coresight: Fix handling of sinks
  UPSTREAM: coresight: Use ERR_CAST instead of ERR_PTR
  UPSTREAM: coresight: Fix remote endpoint parsing
  UPSTREAM: coresight: platform: Fix leaking device reference
  UPSTREAM: coresight: platform: Fix refcounting for graph nodes
  UPSTREAM: coresight: platform: Refactor graph endpoint parsing
  UPSTREAM: coresight: Document error handling in coresight_register
  ANDROID: regression introduced override_creds=off
  ANDROID: overlayfs: internal getxattr operations without sepolicy checking
  ANDROID: overlayfs: add __get xattr method
  ANDROID: Add optional __get xattr method paired to __vfs_getxattr
  UPSTREAM: scsi: ufs: override auto suspend tunables for ufs
  UPSTREAM: scsi: core: allow auto suspend override by low-level driver
  FROMGIT: of: property: Skip adding device links to suppliers that aren't devices
  ANDROID: gki_defconfig: enable CONFIG_KEYBOARD_GPIO
  UPSTREAM: dm bufio: introduce a global cache replacement
  UPSTREAM: dm bufio: remove old-style buffer cleanup
  UPSTREAM: dm bufio: introduce a global queue
  UPSTREAM: dm bufio: refactor adjust_total_allocated
  UPSTREAM: dm bufio: call adjust_total_allocated from __link_buffer and __unlink_buffer
  ANDROID: dummy_cpufreq: Implement get()
  ANDROID: gki_defconfig: enable CONFIG_CPUSETS
  ANDROID: virtio: virtio_input: Set the amount of multitouch slots in virtio input
  rtlwifi: Fix potential overflow on P2P code
  ANDROID: cpufreq: create dummy cpufreq driver
  ANDROID: Allow DRM_IOCTL_MODE_*_DUMB for render clients.
  Cuttlefish Wifi: Add data ops in virt_wifi driver for scan data simulation
  ANDROID: of: property: Enable of_devlink by default
  ANDROID: of: property: Make sure child dependencies don't block probing of parent
  ANDROID: driver core: Allow fwnode_operations.add_links to differentiate errors
  ANDROID: driver core: Allow a device to wait on optional suppliers
  ANDROID: driver core: Add device link support for SYNC_STATE_ONLY flag
  FROMGIT: docs: driver-model: Add documentation for sync_state
  FROMGIT: driver: core: Improve documentation for fwnode_operations.add_links()
  FROMGIT: of: property: Minor code formatting/style clean ups
  ANDROID: of/property: Add device link support for iommus
  ANDROID: move up spin_unlock_bh() ahead of remove_proc_entry()
  BACKPORT: arm64: tags: Preserve tags for addresses translated via TTBR1
  UPSTREAM: arm64: memory: Implement __tag_set() as common function
  UPSTREAM: arm64/mm: fix variable 'tag' set but not used
  UPSTREAM: arm64: avoid clang warning about self-assignment
  ANDROID: sdcardfs: evict dentries on fscrypt key removal
  ANDROID: fscrypt: add key removal notifier chain
  ANDROID: refactor build.config files to remove duplication
  ANDROID: Move from clang r353983c to r365631c
  ANDROID: gki_defconfig: remove PWRSEQ_EMMC and PWRSEQ_SIMPLE
  ANDROID: unconditionally compile sig_ok in struct module
  ANDROID: gki_defconfig: enable fs-verity
  UPSTREAM: mm: vmalloc: show number of vmalloc pages in /proc/meminfo
  BACKPORT: PM/sleep: Expose suspend stats in sysfs
  UPSTREAM: power: supply: Init device wakeup after device_add()
  UPSTREAM: PM / wakeup: Unexport wakeup_source_sysfs_{add,remove}()
  UPSTREAM: PM / wakeup: Register wakeup class kobj after device is added
  UPSTREAM: PM / wakeup: Fix sysfs registration error path
  UPSTREAM: PM / wakeup: Show wakeup sources stats in sysfs
  UPSTREAM: PM / wakeup: Use wakeup_source_register() in wakelock.c
  UPSTREAM: PM / wakeup: Drop wakeup_source_init(), wakeup_source_prepare()
  UPSTREAM: PM / wakeup: Drop wakeup_source_drop()
  UPSTREAM: PM / core: Add support to skip power management in device/driver model
  gki_defconfig: Enable CONFIG_DM_SNAPSHOT
  ANDROID: gki_defconfig: enable accelerated AES and SHA-256
  ANDROID: fix overflow in /proc/uid_cputime/remove_uid_range
  ANDROID: kasan: fix has_attribute check on older GCC versions
  ANDROID: gki_defconfig: enable CONFIG_PARAVIRT and CONFIG_HYPERVISOR_GUEST
  ANDROID: gki_defconfig: enable CONFIG_NLS_*
  ANDROID: gki_defconfig: Enable BPF_JIT and BPF_JIT_ALWAYS_ON
  FROMGIT: of: property: Create device links for all child-supplier depencencies
  FROMGIT: of/platform: Pause/resume sync state during init and of_platform_populate()
  BACKPORT: FROMGIT: driver core: Add sync_state driver/bus callback
  BACKPORT: FROMGIT: of: property: Add functional dependency link from DT bindings
  FROMGIT: driver core: Add support for linking devices during device addition
  FROMGIT: driver core: Add fwnode_to_dev() to look up device from fwnode
  UPSTREAM: mm: untag user pointers in mmap/munmap/mremap/brk
  UPSTREAM: vfio/type1: untag user pointers in vaddr_get_pfn
  UPSTREAM: tee/shm: untag user pointers in tee_shm_register
  UPSTREAM: media/v4l2-core: untag user pointers in videobuf_dma_contig_user_get
  UPSTREAM: drm/radeon: untag user pointers in radeon_gem_userptr_ioctl
  BACKPORT: drm/amdgpu: untag user pointers
  UPSTREAM: userfaultfd: untag user pointers
  UPSTREAM: fs/namespace: untag user pointers in copy_mount_options
  UPSTREAM: mm: untag user pointers in get_vaddr_frames
  UPSTREAM: mm: untag user pointers in mm/gup.c
  UPSTREAM: mm: untag user pointers passed to memory syscalls
  BACKPORT: lib: untag user pointers in strn*_user
  UPSTREAM: arm64: Fix reference to docs for ARM64_TAGGED_ADDR_ABI
  UPSTREAM: selftests, arm64: add kernel headers path for tags_test
  BACKPORT: arm64: Relax Documentation/arm64/tagged-pointers.rst
  UPSTREAM: arm64: Define Documentation/arm64/tagged-address-abi.rst
  UPSTREAM: arm64: Change the tagged_addr sysctl control semantics to only prevent the opt-in
  UPSTREAM: arm64: Tighten the PR_{SET, GET}_TAGGED_ADDR_CTRL prctl() unused arguments
  UPSTREAM: selftests, arm64: fix uninitialized symbol in tags_test.c
  UPSTREAM: arm64: mm: Really fix sparse warning in untagged_addr()
  UPSTREAM: selftests, arm64: add a selftest for passing tagged pointers to kernel
  BACKPORT: arm64: Introduce prctl() options to control the tagged user addresses ABI
  UPSTREAM: arm64: untag user pointers in access_ok and __uaccess_mask_ptr
  UPSTREAM: uaccess: add noop untagged_addr definition
  BACKPORT: block: annotate refault stalls from IO submission
  f2fs: add a condition to detect overflow in f2fs_ioc_gc_range()
  f2fs: fix to add missing F2FS_IO_ALIGNED() condition
  f2fs: fix to fallback to buffered IO in IO aligned mode
  f2fs: fix to handle error path correctly in f2fs_map_blocks
  f2fs: fix extent corrupotion during directIO in LFS mode
  f2fs: check all the data segments against all node ones
  f2fs: Add a small clarification to CONFIG_FS_F2FS_FS_SECURITY
  f2fs: fix inode rwsem regression
  f2fs: fix to avoid accessing uninitialized field of inode page in is_alive()
  f2fs: avoid infinite GC loop due to stale atomic files
  f2fs: Fix indefinite loop in f2fs_gc()
  f2fs: convert inline_data in prior to i_size_write
  f2fs: fix error path of f2fs_convert_inline_page()
  f2fs: add missing documents of reserve_root/resuid/resgid
  f2fs: fix flushing node pages when checkpoint is disabled
  f2fs: enhance f2fs_is_checkpoint_ready()'s readability
  f2fs: clean up __bio_alloc()'s parameter
  f2fs: fix wrong error injection path in inc_valid_block_count()
  f2fs: fix to writeout dirty inode during node flush
  f2fs: optimize case-insensitive lookups
  f2fs: introduce f2fs_match_name() for cleanup
  f2fs: Fix indefinite loop in f2fs_gc()
  f2fs: allocate memory in batch in build_sit_info()
  f2fs: support FS_IOC_{GET,SET}FSLABEL
  f2fs: fix to avoid data corruption by forbidding SSR overwrite
  f2fs: Fix build error while CONFIG_NLS=m
  Revert "f2fs: avoid out-of-range memory access"
  f2fs: cleanup the code in build_sit_entries.
  f2fs: fix wrong available node count calculation
  f2fs: remove duplicate code in f2fs_file_write_iter
  f2fs: fix to migrate blocks correctly during defragment
  f2fs: use wrapped f2fs_cp_error()
  f2fs: fix to use more generic EOPNOTSUPP
  f2fs: use wrapped IS_SWAPFILE()
  f2fs: Support case-insensitive file name lookups
  f2fs: include charset encoding information in the superblock
  fs: Reserve flag for casefolding
  f2fs: fix to avoid call kvfree under spinlock
  fs: f2fs: Remove unnecessary checks of SM_I(sbi) in update_general_status()
  f2fs: disallow direct IO in atomic write
  f2fs: fix to handle quota_{on,off} correctly
  f2fs: fix to detect cp error in f2fs_setxattr()
  f2fs: fix to spread f2fs_is_checkpoint_ready()
  f2fs: support fiemap() for directory inode
  f2fs: fix to avoid discard command leak
  f2fs: fix to avoid tagging SBI_QUOTA_NEED_REPAIR incorrectly
  f2fs: fix to drop meta/node pages during umount
  f2fs: disallow switching io_bits option during remount
  f2fs: fix panic of IO alignment feature
  f2fs: introduce {page,io}_is_mergeable() for readability
  f2fs: fix livelock in swapfile writes
  f2fs: add fs-verity support
  ext4: update on-disk format documentation for fs-verity
  ext4: add fs-verity read support
  ext4: add basic fs-verity support
  fs-verity: support builtin file signatures
  fs-verity: add SHA-512 support
  fs-verity: implement FS_IOC_MEASURE_VERITY ioctl
  fs-verity: implement FS_IOC_ENABLE_VERITY ioctl
  fs-verity: add data verification hooks for ->readpages()
  fs-verity: add the hook for file ->setattr()
  fs-verity: add the hook for file ->open()
  fs-verity: add inode and superblock fields
  fs-verity: add Kconfig and the helper functions for hashing
  fs: uapi: define verity bit for FS_IOC_GETFLAGS
  fs-verity: add UAPI header
  fs-verity: add MAINTAINERS file entry
  fs-verity: add a documentation file
  ext4: fix kernel oops caused by spurious casefold flag
  ext4: fix coverity warning on error path of filename setup
  ext4: optimize case-insensitive lookups
  ext4: fix dcache lookup of !casefolded directories
  unicode: update to Unicode 12.1.0 final
  unicode: add missing check for an error return from utf8lookup()
  ext4: export /sys/fs/ext4/feature/casefold if Unicode support is present
  unicode: refactor the rule for regenerating utf8data.h
  ext4: Support case-insensitive file name lookups
  ext4: include charset encoding information in the superblock
  unicode: update unicode database unicode version 12.1.0
  unicode: introduce test module for normalized utf8 implementation
  unicode: implement higher level API for string handling
  unicode: reduce the size of utf8data[]
  unicode: introduce code for UTF-8 normalization
  unicode: introduce UTF-8 character database
  ext4 crypto: fix to check feature status before get policy
  fscrypt: document the new ioctls and policy version
  ubifs: wire up new fscrypt ioctls
  f2fs: wire up new fscrypt ioctls
  ext4: wire up new fscrypt ioctls
  fscrypt: require that key be added when setting a v2 encryption policy
  fscrypt: add FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS ioctl
  fscrypt: allow unprivileged users to add/remove keys for v2 policies
  fscrypt: v2 encryption policy support
  fscrypt: add an HKDF-SHA512 implementation
  fscrypt: add FS_IOC_GET_ENCRYPTION_KEY_STATUS ioctl
  fscrypt: add FS_IOC_REMOVE_ENCRYPTION_KEY ioctl
  fscrypt: add FS_IOC_ADD_ENCRYPTION_KEY ioctl
  fscrypt: rename keyinfo.c to keysetup.c
  fscrypt: move v1 policy key setup to keysetup_v1.c
  fscrypt: refactor key setup code in preparation for v2 policies
  fscrypt: rename fscrypt_master_key to fscrypt_direct_key
  fscrypt: add ->ci_inode to fscrypt_info
  fscrypt: use FSCRYPT_* definitions, not FS_*
  fscrypt: use FSCRYPT_ prefix for uapi constants
  fs, fscrypt: move uapi definitions to new header <linux/fscrypt.h>
  fscrypt: use ENOPKG when crypto API support missing
  fscrypt: improve warnings for missing crypto API support
  fscrypt: improve warning messages for unsupported encryption contexts
  fscrypt: make fscrypt_msg() take inode instead of super_block
  fscrypt: clean up base64 encoding/decoding
  fscrypt: remove loadable module related code

Updated following files to fix build errors:
	drivers/gpu/msm/kgsl_pool.c
	drivers/hwtracing/coresight/coresight-dummy.c
	drivers/iommu/dma-mapping-fast.c
	drivers/iommu/io-pgtable-fast.c
	drivers/iommu/io-pgtable-msm-secure.c
	kernel/taskstats.c
	mm/vmalloc.c
	security/selinux/ss/sidtab.h

Conflicts:
	arch/arm/Makefile
	arch/arm64/Kconfig
	arch/x86/include/asm/syscall_wrapper.h
	build.config.common
	drivers/clk/clk.c
	drivers/hwtracing/coresight/coresight-etm-perf.c
	drivers/hwtracing/coresight/coresight-funnel.c
	drivers/hwtracing/coresight/coresight-tmc-etf.c
	drivers/hwtracing/coresight/coresight-tmc-etr.c
	drivers/hwtracing/coresight/coresight-tmc.c
	drivers/hwtracing/coresight/coresight-tmc.h
	drivers/hwtracing/coresight/coresight.c
	drivers/hwtracing/coresight/of_coresight.c
	drivers/iommu/arm-smmu.c
	drivers/iommu/io-pgtable-arm.c
	drivers/iommu/io-pgtable.c
	drivers/scsi/scsi_sysfs.c
	drivers/scsi/sd.c
	drivers/scsi/ufs/ufshcd.c
	drivers/scsi/ufs/ufshcd.h
	drivers/staging/android/ion/ion.c
	drivers/staging/android/ion/ion.h
	drivers/staging/android/ion/ion_page_pool.c
	fs/ext4/readpage.c
	fs/f2fs/data.c
	fs/f2fs/f2fs.h
	fs/f2fs/file.c
	fs/f2fs/segment.c
	fs/f2fs/super.c
	include/linux/clk-provider.h
	include/linux/compiler_types.h
	include/linux/coresight.h
	include/linux/mmzone.h
	include/scsi/scsi_device.h
	include/trace/events/kmem.h
	kernel/events/core.c
	kernel/sched/core.c
	mm/vmstat.c

Change-Id: I2eca52b08b484f2b5c30437671cab8cb0195b8d6
Signed-off-by: Ivaylo Georgiev <irgeorgiev@codeaurora.org>
2020-03-27 10:48:20 -07:00
Joel Fernandes (Google)
0f2b4ea6e2 FROMLIST: vsprintf: Inline call to ptr_to_hashval
There is concern that ptr_to_hashval not being inlined can cause performance
issues (unlike before where it was a static branch) with trace_printk being a
hot path for it. Just create an inline version called __ptr_to_hashval(), and
have the actual ptr_to_hashval() call it.

Link: http://lore.kernel.org/r/20191113153816.14b95acd@gandalf.local.home
Link: lore.kernel.org/r/20191114164622.GC233237@google.com
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Change-Id: Ie7133b9f32a8185e244db2634b028b316a3d7ea1
Signed-off-by: Joel Fernandes <joel@joelfernandes.org>
Signed-off-by: Joel Fernandes <joelaf@google.com>
2019-11-18 14:10:46 -05:00
Joel Fernandes
23727eb130 UPSTREAM: rss_stat: Add support to detect RSS updates of external mm
When a process updates the RSS of a different process, the rss_stat
tracepoint appears in the context of the process doing the update. This
can confuse userspace that the RSS of process doing the update is
updated, while in reality a different process's RSS was updated.

This issue happens in reclaim paths such as with direct reclaim or
background reclaim.

This patch adds more information to the tracepoint about whether the mm
being updated belongs to the current process's context (curr field). We
also include a hash of the mm pointer so that the process who the mm
belongs to can be uniquely identified (mm_id field).

Also vsprintf.c is refactored a bit to allow reuse of hashing code.

Change-Id: Ic87af93af608c83be0b08757aed99d2b9c2c01d8
Reported-by: Ioannis Ilkos <ilkos@google.com>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Acked-by: Petr Mladek <pmladek@suse.com> # lib/vsprintf.c
Signed-off-by: Joel Fernandes <joelaf@google.com>
2019-11-18 14:02:15 -05:00
Patrick Daly
0585b78e53 lib/vsprintf: Less restrictive hashed pointer printing
Commit ad67b74d24 ("printk: hash addresses printed with %p") and
Commit ef0010a309 ("vsprintf: don't use 'restricted_pointer()'
when not restricting") effectively removed the ability to display
kernel addresses in the kernel log. While this may be a useful feature
in production builds, it is undesirable when trying to debug.

%px is not a possible alternative, because it is unable to differentiate
between a debug and production build.

Change-Id: I139fae7b8488936d214efdd2b5b807fa1c005467
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>
2019-07-15 13:46:42 -07:00
Steven Rostedt (VMware)
62165600ae vsprintf: Fix off-by-one bug in bstr_printf() processing dereferenced pointers
The functions vbin_printf() and bstr_printf() are used by trace_printk() to
try to keep the overhead down during printing. trace_printk() uses
vbin_printf() at the time of execution, as it only scans the fmt string to
record the printf values into the buffer, and then uses vbin_printf() to do
the conversions to print the string based on the format and the saved
values in the buffer.

This is an issue for dereferenced pointers, as before commit 841a915d20,
the processing of the pointer could happen some time after the pointer value
was recorded (reading the trace buffer). This means the processing of the
value at a later time could show different results, or even crash the
system, if the pointer no longer existed.

Commit 841a915d20 addressed this by processing dereferenced pointers at
the time of execution and save the result in the ring buffer as a string.
The bstr_printf() would then treat these pointers as normal strings, and
print the value. But there was an off-by-one bug here, where after
processing the argument, it move the pointer only "strlen(arg)" which made
the arg pointer not point to the next argument in the ring buffer, but
instead point to the nul character of the last argument. This causes any
values after a dereferenced pointer to be corrupted.

Cc: stable@vger.kernel.org
Fixes: 841a915d20 ("vsprintf: Do not have bprintf dereference pointers")
Reported-by: Nikolay Borisov <nborisov@suse.com>
Tested-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2018-10-05 10:17:15 -04:00
Linus Torvalds
99a2c789dd Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull random updates from Ted Ts'o:
 "Some changes to trust cpu-based hwrng (such as RDRAND) for
  initializing hashed pointers and (optionally, controlled by a config
  option) to initialize the CRNG to avoid boot hangs"

* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
  random: Make crng state queryable
  random: remove preempt disabled region
  random: add a config option to trust the CPU's hwrng
  vsprintf: Add command line option debug_boot_weak_hash
  vsprintf: Use hw RNG for ptr_key
  random: Return nbytes filled from hw RNG
  random: Fix whitespace pre random-bytes work
2018-08-15 21:16:02 -07:00
Bart Van Assche
554ec50865 lib/vsprintf: Do not handle %pO[^F] as %px
This patch avoids that gcc reports the following when building with W=1:

lib/vsprintf.c:1941:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   switch (fmt[1]) {
   ^~~~~~

Fixes: 7b1924a1d9 ("vsprintf: add printk specifier %px")
Link: http://lkml.kernel.org/r/20180806223421.11995-1-bart.vanassche@wdc.com
Cc: linux-kernel@vger.kernel.org
Cc: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Cc: Joe Perches <joe@perches.com>
Cc: Rob Herring <robh@kernel.org>
Cc: v4.15+ <stable@vger.kernel.org>
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-08-07 09:20:18 +02:00
Tobin C. Harding
3672476eda vsprintf: Add command line option debug_boot_weak_hash
Currently printing [hashed] pointers requires enough entropy to be
available.  Early in the boot sequence this may not be the case
resulting in a dummy string '(____ptrval____)' being printed.  This
makes debugging the early boot sequence difficult.  We can relax the
requirement to use cryptographically secure hashing during debugging.
This enables debugging while keeping development/production kernel
behaviour the same.

If new command line option debug_boot_weak_hash is enabled use
cryptographically insecure hashing and hash pointer value immediately.

Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2018-07-17 21:32:48 -04:00
Tobin C. Harding
1c4facb846 vsprintf: Use hw RNG for ptr_key
Currently we must wait for enough entropy to become available before
hashed pointers can be printed.  We can remove this wait by using the
hw RNG if available.

Use hw RNG to get keying material.

Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2018-07-17 21:32:48 -04:00
Linus Torvalds
d75ae5bdf2 Merge tag 'printk-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:

 - Help userspace log daemons to catch up with a flood of messages. They
   will get woken after each message even if the console is far behind
   and handled by another process.

 - Flush printk safe buffers safely even when panic() happens in the
   normal context.

 - Fix possible va_list reuse when race happened in printk_safe().

 - Remove %pCr printf format to prevent sleeping in the atomic context.

 - Misc vsprintf code cleanup.

* tag 'printk-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
  printk: drop in_nmi check from printk_safe_flush_on_panic()
  lib/vsprintf: Remove atomic-unsafe support for %pCr
  serial: sh-sci: Stop using printk format %pCr
  thermal: bcm2835: Stop using printk format %pCr
  clk: renesas: cpg-mssr: Stop using printk format %pCr
  printk: fix possible reuse of va_list variable
  printk: wake up klogd in vprintk_emit
  vsprintf: Tweak pF/pf comment
  lib/vsprintf: Mark expected switch fall-through
  lib/vsprintf: Replace space with '_' before crng is ready
  lib/vsprintf: Deduplicate pointer_string()
  lib/vsprintf: Move pointer_string() upper
  lib/vsprintf: Make flag_spec global
  lib/vsprintf: Make strspec global
  lib/vsprintf: Make dec_spec global
  lib/test_printf: Mark big constant with UL
2018-06-06 16:04:55 -07:00
Petr Mladek
8bafa2a44f Merge branch 'for-4.18-vsprintf-pcr-removal' into for-4.18 2018-06-05 13:39:12 +02:00
Geert Uytterhoeven
666902e42f lib/vsprintf: Remove atomic-unsafe support for %pCr
"%pCr" formats the current rate of a clock, and calls clk_get_rate().
The latter obtains a mutex, hence it must not be called from atomic
context.

Remove support for this rarely-used format, as vsprintf() (and e.g.
printk()) must be callable from any context.

Any remaining out-of-tree users will start seeing the clock's name
printed instead of its rate.

Reported-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Fixes: 900cca2944 ("lib/vsprintf: add %pC{,n,r} format specifiers for clocks")
Link: http://lkml.kernel.org/r/1527845302-12159-5-git-send-email-geert+renesas@glider.be
To: Jia-Ju Bai <baijiaju1990@gmail.com>
To: Jonathan Corbet <corbet@lwn.net>
To: Michael Turquette <mturquette@baylibre.com>
To: Stephen Boyd <sboyd@kernel.org>
To: Zhang Rui <rui.zhang@intel.com>
To: Eduardo Valentin <edubezval@gmail.com>
To: Eric Anholt <eric@anholt.net>
To: Stefan Wahren <stefan.wahren@i2se.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-doc@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-serial@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: stable@vger.kernel.org # 4.1+
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-06-05 09:43:39 +02:00
Steven Rostedt (VMware)
85f4f12d51 vsprintf: Replace memory barrier with static_key for random_ptr_key update
Reviewing Tobin's patches for getting pointers out early before
entropy has been established, I noticed that there's a lone smp_mb() in
the code. As with most lone memory barriers, this one appears to be
incorrectly used.

We currently basically have this:

	get_random_bytes(&ptr_key, sizeof(ptr_key));
	/*
	 * have_filled_random_ptr_key==true is dependent on get_random_bytes().
	 * ptr_to_id() needs to see have_filled_random_ptr_key==true
	 * after get_random_bytes() returns.
	 */
	smp_mb();
	WRITE_ONCE(have_filled_random_ptr_key, true);

And later we have:

	if (unlikely(!have_filled_random_ptr_key))
		return string(buf, end, "(ptrval)", spec);

/* Missing memory barrier here. */

	hashval = (unsigned long)siphash_1u64((u64)ptr, &ptr_key);

As the CPU can perform speculative loads, we could have a situation
with the following:

	CPU0				CPU1
	----				----
				   load ptr_key = 0
   store ptr_key = random
   smp_mb()
   store have_filled_random_ptr_key

				   load have_filled_random_ptr_key = true

				    BAD BAD BAD! (you're so bad!)

Because nothing prevents CPU1 from loading ptr_key before loading
have_filled_random_ptr_key.

But this race is very unlikely, but we can't keep an incorrect smp_mb() in
place. Instead, replace the have_filled_random_ptr_key with a static_branch
not_filled_random_ptr_key, that is initialized to true and changed to false
when we get enough entropy. If the update happens in early boot, the
static_key is updated immediately, otherwise it will have to wait till
entropy is filled and this happens in an interrupt handler which can't
enable a static_key, as that requires a preemptible context. In that case, a
work_queue is used to enable it, as entropy already took too long to
establish in the first place waiting a little more shouldn't hurt anything.

The benefit of using the static key is that the unlikely branch in
vsprintf() now becomes a nop.

Link: http://lkml.kernel.org/r/20180515100558.21df515e@gandalf.local.home

Cc: stable@vger.kernel.org
Fixes: ad67b74d24 ("printk: hash addresses printed with %p")
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2018-05-16 09:01:41 -04:00
Sergey Senozhatsky
cdb7e52d96 vsprintf: Tweak pF/pf comment
Reflect changes that have happened to pf/pF (deprecation)
specifiers in pointer() comment section.

Link: http://lkml.kernel.org/r/20180414030005.25831-1-sergey.senozhatsky@gmail.com
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Joe Perches <joe@perches.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-04-18 12:53:52 +02:00
Andrei Vagin
d1be35cb6f proc: add seq_put_decimal_ull_width to speed up /proc/pid/smaps
seq_put_decimal_ull_w(m, str, val, width) prints a decimal number with a
specified minimal field width.

It is equivalent of seq_printf(m, "%s%*d", str, width, val), but it
works much faster.

== test_smaps.py
  num = 0
  with open("/proc/1/smaps") as f:
          for x in xrange(10000):
                  data = f.read()
                  f.seek(0, 0)
==

== Before patch ==
  $ time python test_smaps.py
  real    0m4.593s
  user    0m0.398s
  sys     0m4.158s

== After patch ==
  $ time python test_smaps.py
  real    0m3.828s
  user    0m0.413s
  sys     0m3.408s

$ perf -g record python test_smaps.py
== Before patch ==
-   79.01%     3.36%  python   [kernel.kallsyms]    [k] show_smap.isra.33
   - 75.65% show_smap.isra.33
      + 48.85% seq_printf
      + 15.75% __walk_page_range
      + 9.70% show_map_vma.isra.23
        0.61% seq_puts

== After patch ==
-   75.51%     4.62%  python   [kernel.kallsyms]    [k] show_smap.isra.33
   - 70.88% show_smap.isra.33
      + 24.82% seq_put_decimal_ull_w
      + 19.78% __walk_page_range
      + 12.74% seq_printf
      + 11.08% show_map_vma.isra.23
      + 1.68% seq_puts

[akpm@linux-foundation.org: fix drivers/of/unittest.c build]
Link: http://lkml.kernel.org/r/20180212074931.7227-1-avagin@openvz.org
Signed-off-by: Andrei Vagin <avagin@openvz.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-11 10:28:33 -07:00
Andy Shevchenko
7e6bd6f3dc lib/vsprintf: Mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Link: http://lkml.kernel.org/r/20180216210711.79901-9-andriy.shevchenko@linux.intel.com
To: "Tobin C . Harding" <me@tobin.cc>
To: linux@rasmusvillemoes.dk
To: Joe Perches <joe@perches.com>
To: linux-kernel@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-04-11 11:19:13 +02:00
Shunyong Yang
91efafb1dd lib/vsprintf: Replace space with '_' before crng is ready
Before crng is ready, output of "%p" composes of "(ptrval)" and
left padding spaces for alignment as no random address can be
generated. This seems a little strange when default string width
is larger than strlen("(ptrval)").

For example, when irq domain names are built with "%p", the nodes
under /sys/kernel/debug/irq/domains like this on AArch64 system,

[root@y irq]# ls domains/
default                   irqchip@        (ptrval)-2
irqchip@        (ptrval)-4  \_SB_.TCS0.QIC1  \_SB_.TCS0.QIC3
irqchip@        (ptrval)  irqchip@        (ptrval)-3
\_SB_.TCS0.QIC0             \_SB_.TCS0.QIC2

The name "irqchip@        (ptrval)-2" is not so readable in console
output.

This patch replaces space with readable "_" when output needs padding.
Following is the output after applying the patch,

[root@y domains]# ls
default                   irqchip@(____ptrval____)-2
irqchip@(____ptrval____)-4  \_SB_.TCS0.QIC1  \_SB_.TCS0.QIC3
irqchip@(____ptrval____)  irqchip@(____ptrval____)-3  \_SB_.TCS0.QIC0
\_SB_.TCS0.QIC2

There is same problem in some subsystem's dmesg output. Moreover,
someone may call "%p" in a similar case. In addition, the timing of
crng initialization done may vary on different system. So, the change
is made in vsprintf.c.

Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: http://lkml.kernel.org/r/20180216210711.79901-7-andriy.shevchenko@linux.intel.com
To: "Tobin C . Harding" <me@tobin.cc>
To: linux@rasmusvillemoes.dk
To: Joe Perches <joe@perches.com>
To: linux-kernel@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Joey Zheng <yu.zheng@hxt-semitech.com>
Signed-off-by: Shunyong Yang <shunyong.yang@hxt-semitech.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-04-11 11:18:43 +02:00
Andy Shevchenko
496a9a5f38 lib/vsprintf: Deduplicate pointer_string()
There is an exact code at the end of ptr_to_id().
Replace it by calling pointer_string() directly.

This is followup to the commit ad67b74d24 ("printk: hash addresses
printed with %p").

Cc: Tobin C. Harding <me@tobin.cc>
Link: http://lkml.kernel.org/r/20180216210711.79901-6-andriy.shevchenko@linux.intel.com
To: "Tobin C . Harding" <me@tobin.cc>
To: linux@rasmusvillemoes.dk
To: Joe Perches <joe@perches.com>
To: linux-kernel@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-04-11 11:17:06 +02:00
Andy Shevchenko
558594f3c2 lib/vsprintf: Move pointer_string() upper
As preparatory patch to further clean up.

No functional change.

Link: http://lkml.kernel.org/r/20180216210711.79901-5-andriy.shevchenko@linux.intel.com
To: "Tobin C . Harding" <me@tobin.cc>
To: linux@rasmusvillemoes.dk
To: Joe Perches <joe@perches.com>
To: linux-kernel@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-04-11 10:32:42 +02:00
Andy Shevchenko
5443397308 lib/vsprintf: Make flag_spec global
There are places where default specification to print flags as number
is in use.

Make it global and convert existing users.

Link: http://lkml.kernel.org/r/20180216210711.79901-4-andriy.shevchenko@linux.intel.com
To: "Tobin C . Harding" <me@tobin.cc>
To: linux@rasmusvillemoes.dk
To: Joe Perches <joe@perches.com>
To: linux-kernel@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-04-11 10:23:10 +02:00
Andy Shevchenko
abd4fe6276 lib/vsprintf: Make strspec global
There are places where default specification to print strings
is in use.

Make it global and convert existing users.

Link: http://lkml.kernel.org/r/20180216210711.79901-3-andriy.shevchenko@linux.intel.com
To: "Tobin C . Harding" <me@tobin.cc>
To: linux@rasmusvillemoes.dk
To: Joe Perches <joe@perches.com>
To: linux-kernel@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-04-11 10:20:47 +02:00
Andy Shevchenko
ce0b4910bd lib/vsprintf: Make dec_spec global
There are places where default specification to print decimal numbers
is in use.

Make it global and convert existing users.

Link: http://lkml.kernel.org/r/20180216210711.79901-2-andriy.shevchenko@linux.intel.com
To: "Tobin C . Harding" <me@tobin.cc>
To: linux@rasmusvillemoes.dk
To: Joe Perches <joe@perches.com>
To: linux-kernel@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-04-11 10:20:42 +02:00
Steven Rostedt (VMware)
1e6338cfb5 vsprintf: Do not preprocess non-dereferenced pointers for bprintf (%px and %pK)
Commit 841a915d20 ("printf: Do not have bprintf dereference pointers")
would preprocess various pointers that are dereferenced in the bprintf()
because the recording and printing are done at two different times. Some
pointers stayed dereferenced in the ring buffer because user space could
handle them (namely "%pS" and friends). Pointers that are not dereferenced
should not be processed immediately but instead just saved directly.

Cc: stable@vger.kernel.org
Fixes: 841a915d20 ("printf: Do not have bprintf dereference pointers")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2018-04-06 08:56:51 -04:00
Adam Borowski
3a129cc215 vsprintf: avoid misleading "(null)" for %px
Like %pK already does, print "00000000" instead.

This confused people -- the convention is that "(null)" means you tried to
dereference a null pointer as opposed to printing the address.

Link: http://lkml.kernel.org/r/20180204174521.21383-1-kilobyte@angband.pl
To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Joe Perches <joe@perches.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: "Roberts, William C" <william.c.roberts@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-02-08 14:21:41 +01:00
Linus Torvalds
ab486bc9a5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:

 - Add a console_msg_format command line option:

     The value "default" keeps the old "[time stamp] text\n" format. The
     value "syslog" allows to see the syslog-like "<log
     level>[timestamp] text" format.

     This feature was requested by people doing regression tests, for
     example, 0day robot. They want to have both filtered and full logs
     at hands.

 - Reduce the risk of softlockup:

     Pass the console owner in a busy loop.

     This is a new approach to the old problem. It was first proposed by
     Steven Rostedt on Kernel Summit 2017. It marks a context in which
     the console_lock owner calls console drivers and could not sleep.
     On the other side, printk() callers could detect this state and use
     a busy wait instead of a simple console_trylock(). Finally, the
     console_lock owner checks if there is a busy waiter at the end of
     the special context and eventually passes the console_lock to the
     waiter.

     The hand-off works surprisingly well and helps in many situations.
     Well, there is still a possibility of the softlockup, for example,
     when the flood of messages stops and the last owner still has too
     much to flush.

     There is increasing number of people having problems with
     printk-related softlockups. We might eventually need to get better
     solution. Anyway, this looks like a good start and promising
     direction.

 - Do not allow to schedule in console_unlock() called from printk():

     This reverts an older controversial commit. The reschedule helped
     to avoid softlockups. But it also slowed down the console output.
     This patch is obsoleted by the new console waiter logic described
     above. In fact, the reschedule made the hand-off less effective.

 - Deprecate "%pf" and "%pF" format specifier:

     It was needed on ia64, ppc64 and parisc64 to dereference function
     descriptors and show the real function address. It is done
     transparently by "%ps" and "pS" format specifier now.

     Sergey Senozhatsky found that all the function descriptors were in
     a special elf section and could be easily detected.

 - Remove printk_symbol() API:

     It has been obsoleted by "%pS" format specifier, and this change
     helped to remove few continuous lines and a less intuitive old API.

 - Remove redundant memsets:

     Sergey removed unnecessary memset when processing printk.devkmsg
     command line option.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk: (27 commits)
  printk: drop redundant devkmsg_log_str memsets
  printk: Never set console_may_schedule in console_trylock()
  printk: Hide console waiter logic into helpers
  printk: Add console owner and waiter logic to load balance console writes
  kallsyms: remove print_symbol() function
  checkpatch: add pF/pf deprecation warning
  symbol lookup: introduce dereference_symbol_descriptor()
  parisc64: Add .opd based function descriptor dereference
  powerpc64: Add .opd based function descriptor dereference
  ia64: Add .opd based function descriptor dereference
  sections: split dereference_function_descriptor()
  openrisc: Fix conflicting types for _exext and _stext
  lib: do not use print_symbol()
  irq debug: do not use print_symbol()
  sysfs: do not use print_symbol()
  drivers: do not use print_symbol()
  x86: do not use print_symbol()
  unicore32: do not use print_symbol()
  sh: do not use print_symbol()
  mn10300: do not use print_symbol()
  ...
2018-02-01 13:36:15 -08:00
Linus Torvalds
27529c891b Merge tag 'trace-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
 "There's not much changes for the tracing system this release. Mostly
  small clean ups and fixes.

  The biggest change is to how bprintf works. bprintf is used by
  trace_printk() to just save the format and args of a printf call, and
  the formatting is done when the trace buffer is read. This is done to
  keep the formatting out of the fast path (this was recommended by
  you). The issue is when arguments are de-referenced.

  If a pointer is saved, and the format has something like "%*pbl", when
  the buffer is read, it will de-reference the argument then. The
  problem is if the data no longer exists. This can cause the kernel to
  oops.

  The fix for this was to make these de-reference pointes do the
  formatting at the time it is called (the fast path), as this
  guarantees that the data exists (and doesn't change later)"

* tag 'trace-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  vsprintf: Do not have bprintf dereference pointers
  ftrace: Mark function tracer test functions noinline/noclone
  trace_uprobe: Display correct offset in uprobe_events
  tracing: Make sure the parsed string always terminates with '\0'
  tracing: Clear parser->idx if only spaces are read
  tracing: Detect the string nul character when parsing user input string
2018-02-01 13:15:23 -08:00
Steven Rostedt (VMware)
841a915d20 vsprintf: Do not have bprintf dereference pointers
When trace_printk() was introduced, it was discussed that making it be as
low overhead as possible, that the processing of the format string should be
delayed until it is read. That is, a "trace_printk()" should not convert
the %d into numbers and so on, but instead, save the fmt string and all the
args in the buffer at the time of recording. When the trace_printk() data is
read, it would then parse the format string and do the conversions of the
saved arguments in the tracing buffer.

The code to perform this was added to vsprintf where vbin_printf() would
save the arguments of a specified format string in a buffer, then
bstr_printf() could be used to convert the buffer with the same format
string into the final output, as if vsprintf() was called in one go.

The issue arises when dereferenced pointers are used. The problem is that
something like %*pbl which reads a bitmask, will save the pointer to the
bitmask in the buffer. Then the reading of the buffer via bstr_printf() will
then look at the pointer to process the final output. Obviously the value of
that pointer could have changed since the time it was recorded to the time
the buffer is read. Worse yet, the bitmask could be unmapped, and the
reading of the trace buffer could actually cause a kernel oops.

Another problem is that user space tools such as perf and trace-cmd do not
have access to the contents of these pointers, and they become useless when
the tracing buffer is extracted.

Instead of having vbin_printf() simply save the pointer in the buffer for
later processing, have it perform the formatting at the time bin_printf() is
called. This will fix the issue of dereferencing pointers at a later time,
and has the extra benefit of having user space tools understand these
values.

Since perf and trace-cmd already can handle %p[sSfF] via saving kallsyms,
their pointers are saved and not processed during vbin_printf(). If they
were converted, it would break perf and trace-cmd, as they would not know
how to deal with the conversion.

Link: http://lkml.kernel.org/r/20171228204025.14a71d8f@gandalf.local.home

Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2018-01-23 15:57:30 -05:00
Sergey Senozhatsky
04b8eb7a4c symbol lookup: introduce dereference_symbol_descriptor()
dereference_symbol_descriptor() invokes appropriate ARCH specific
function descriptor dereference callbacks:
- dereference_kernel_function_descriptor() if the pointer is a
  kernel symbol;

- dereference_module_function_descriptor() if the pointer is a
  module symbol.

This is the last step needed to make '%pS/%ps' smart enough to
handle function descriptor dereference on affected ARCHs and
to retire '%pF/%pf'.

To refresh it:
  Some architectures (ia64, ppc64, parisc64) use an indirect pointer
  for C function pointers - the function pointer points to a function
  descriptor and we need to dereference it to get the actual function
  pointer.

  Function descriptors live in .opd elf section and all affected
  ARCHs (ia64, ppc64, parisc64) handle it properly for kernel and
  modules. So we, technically, can decide if the dereference is
  needed by simply looking at the pointer: if it belongs to .opd
  section then we need to dereference it.

  The kernel and modules have their own .opd sections, obviously,
  that's why we need to split dereference_function_descriptor()
  and use separate kernel and module dereference arch callbacks.

Link: http://lkml.kernel.org/r/20171206043649.GB15885@jagdpanzerIV
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: James Bottomley <jejb@parisc-linux.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-ia64@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Tony Luck <tony.luck@intel.com> #ia64
Tested-by: Santosh Sivaraj <santosh@fossix.org> #powerpc
Tested-by: Helge Deller <deller@gmx.de> #parisc64
Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-01-09 10:45:38 +01:00
Jonathan Corbet
27e7c0e813 vsprintf: Fix a dangling documentation reference
A reference to printk-formats.txt didn't get updated when the file moved;
fix that.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:31 -07:00
Tobin C. Harding
b3ed23213e doc: convert printk-formats.txt to rst
Documentation/printk-formats.txt is a candidate for conversion to
ReStructuredText format. Some effort has already been made to do this
conversion even thought the suffix is currently .txt

Changes required to complete conversion

 - Move printk-formats.txt to core-api/printk-formats.rst
 - Add entry to Documentation/core-api/index.rst
 - Remove entry from Documentation/00-INDEX
 - Fix minor grammatical errors.
 - Order heading adornments as suggested by rst docs.
 - Use 'Passed by reference' uniformly.
 - Update pointer documentation around %px specifier.
 - Fix erroneous double backticks (to commas).
 - Remove extraneous double backticks (suggested by Jonathan Corbet).
 - Simplify documentation for kobject.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
[jc: downcased "kernel"]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:07 -07:00
Linus Torvalds
ef0010a309 vsprintf: don't use 'restricted_pointer()' when not restricting
Instead, just fall back on the new '%p' behavior which hashes the
pointer.

Otherwise, '%pK' - that was intended to mark a pointer as restricted -
just ends up leaking pointers that a normal '%p' wouldn't leak.  Which
just make the whole thing pointless.

I suspect we should actually get rid of '%pK' entirely, and make it just
work as '%p' regardless, but this is the minimal obvious fix.  People
who actually use 'kptr_restrict' should weigh in on which behavior they
want.

Cc: Tobin Harding <me@tobin.cc>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-11-29 11:28:09 -08:00
Tobin C. Harding
7b1924a1d9 vsprintf: add printk specifier %px
printk specifier %p now hashes all addresses before printing. Sometimes
we need to see the actual unmodified address. This can be achieved using
%lx but then we face the risk that if in future we want to change the
way the Kernel handles printing of pointers we will have to grep through
the already existent 50 000 %lx call sites. Let's add specifier %px as a
clear, opt-in, way to print a pointer and maintain some level of
isolation from all the other hex integer output within the Kernel.

Add printk specifier %px to print the actual unmodified address.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
2017-11-29 12:13:14 +11:00
Tobin C. Harding
ad67b74d24 printk: hash addresses printed with %p
Currently there exist approximately 14 000 places in the kernel where
addresses are being printed using an unadorned %p. This potentially
leaks sensitive information regarding the Kernel layout in memory. Many
of these calls are stale, instead of fixing every call lets hash the
address by default before printing. This will of course break some
users, forcing code printing needed addresses to be updated.

Code that _really_ needs the address will soon be able to use the new
printk specifier %px to print the address.

For what it's worth, usage of unadorned %p can be broken down as
follows (thanks to Joe Perches).

$ git grep -E '%p[^A-Za-z0-9]' | cut -f1 -d"/" | sort | uniq -c
   1084 arch
     20 block
     10 crypto
     32 Documentation
   8121 drivers
   1221 fs
    143 include
    101 kernel
     69 lib
    100 mm
   1510 net
     40 samples
      7 scripts
     11 security
    166 sound
    152 tools
      2 virt

Add function ptr_to_id() to map an address to a 32 bit unique
identifier. Hash any unadorned usage of specifier %p and any malformed
specifiers.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
2017-11-29 12:09:02 +11:00
Tobin C. Harding
57e734423a vsprintf: refactor %pK code out of pointer()
Currently code to handle %pK is all within the switch statement in
pointer(). This is the wrong level of abstraction. Each of the other switch
clauses call a helper function, pK should do the same.

Refactor code out of pointer() to new function restricted_pointer().

Signed-off-by: Tobin C. Harding <me@tobin.cc>
2017-11-29 12:03:24 +11:00
Mark Rutland
6aa7de0591 locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()
Please do not apply this to mainline directly, instead please re-run the
coccinelle script shown below and apply its output.

For several reasons, it is desirable to use {READ,WRITE}_ONCE() in
preference to ACCESS_ONCE(), and new code is expected to use one of the
former. So far, there's been no reason to change most existing uses of
ACCESS_ONCE(), as these aren't harmful, and changing them results in
churn.

However, for some features, the read/write distinction is critical to
correct operation. To distinguish these cases, separate read/write
accessors must be used. This patch migrates (most) remaining
ACCESS_ONCE() instances to {READ,WRITE}_ONCE(), using the following
coccinelle script:

----
// Convert trivial ACCESS_ONCE() uses to equivalent READ_ONCE() and
// WRITE_ONCE()

// $ make coccicheck COCCI=/home/mark/once.cocci SPFLAGS="--include-headers" MODE=patch

virtual patch

@ depends on patch @
expression E1, E2;
@@

- ACCESS_ONCE(E1) = E2
+ WRITE_ONCE(E1, E2)

@ depends on patch @
expression E;
@@

- ACCESS_ONCE(E)
+ READ_ONCE(E)
----

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: davem@davemloft.net
Cc: linux-arch@vger.kernel.org
Cc: mpe@ellerman.id.au
Cc: shuah@kernel.org
Cc: snitzer@redhat.com
Cc: thor.thayer@linux.intel.com
Cc: tj@kernel.org
Cc: viro@zeniv.linux.org.uk
Cc: will.deacon@arm.com
Link: http://lkml.kernel.org/r/1508792849-3115-19-git-send-email-paulmck@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-25 11:01:08 +02:00
Linus Torvalds
dd6ec12f3b Merge tag 'devicetree-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:

 - vsprintf format specifier %pOF for device_node's. This will enable us
   to stop storing the full node names. Conversion of users will happen
   next cycle.

 - Update documentation to point to DT specification instead of ePAPR.

 - Split out graph and property functions to a separate file.

 - New of-graph functions for ALSA

 - Add vendor prefixes for RISC-V, Linksys, iWave Systems, Roofull,
   Itead, and BananaPi.

 - Improve dtx_diff utility filename printing.

* tag 'devicetree-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (32 commits)
  of: document /sys/firmware/fdt
  dt-bindings: Add RISC-V vendor prefix
  vsprintf: Add %p extension "%pOF" for device tree
  of: find_node_by_full_name rewrite to compare each level
  of: use kbasename instead of open coding
  dt-bindings: thermal: add file extension to brcm,ns-thermal
  of: update ePAPR references to point to Devicetree Specification
  scripts/dtc: dtx_diff - Show real file names in diff header
  of: detect invalid phandle in overlay
  of: be consistent in form of file mode
  of: make __of_attach_node() static
  of: address.c header comment typo
  of: fdt.c header comment typo
  of: make of_fdt_is_compatible() static
  dt-bindings: display-timing.txt convert non-ascii characters to ascii
  Documentation: remove overlay-notes reference to non-existent file
  dt-bindings: usb: exynos-usb: Add missing required VDD properties
  dt-bindings: Add vendor prefix for Linksys
  MAINTAINERS: add device tree ABI documentation file
  of: Add vendor prefix for iWave Systems Technologies Pvt. Ltd
  ...
2017-07-07 10:37:54 -07:00
Pantelis Antoniou
ce4fecf1fe vsprintf: Add %p extension "%pOF" for device tree
90% of the usage of device node's full_name is printing it out in a
kernel message. However, storing the full path for every node is
wasteful and redundant. With a custom format specifier, we can generate
the full path at run-time and eventually remove the full path from every
node.

For instance typical use is:
	pr_info("Frobbing node %s\n", node->full_name);

Which can be written now as:
	pr_info("Frobbing node %pOF\n", node);

'%pO' is the base specifier to represent kobjects with '%pOF'
representing struct device_node. Currently, struct device_node is the
only supported type of kobject.

More fine-grained control of formatting includes printing the name,
flags, path-spec name and others, explained in the documentation entry.

Originally written by Pantelis, but pretty much rewrote the core
function using existing string/number functions. The 2 passes were
unnecessary and have been removed. Also, updated the checkpatch.pl
check. The unittest code was written by Grant Likely.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-06-27 12:36:40 -05:00
Christoph Hellwig
f9727a17db uuid: rename uuid types
Our "little endian" UUID really is a Wintel GUID, so rename it and its
helpers such (guid_t).  The big endian UUID is the only true one, so
give it the name uuid_t.  The uuid_le and uuid_be names are retained for
now, but will hopefully go away soon.  The exception to that are the _cmp
helpers that will be replaced by better primitives ASAP and thus don't
get the new names.

Also the _to_bin helpers are named to match the better named uuid_parse
routine in userspace.

Also remove the existing typedef in XFS that's now been superceeded by
the generic type name.

Signed-off-by: Christoph Hellwig <hch@lst.de>
[andy: also update the UUID_LE/UUID_BE macros including fallout]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-05 16:58:59 +02:00
Joe Perches
0b523769eb checkpatch: add ability to find bad uses of vsprintf %p<foo> extensions
%pK was at least once misused at %pk in an out-of-tree module.  This
lead to some security concerns.  Add the ability to track single and
multiple line statements for misuses of %p<foo>.

[akpm@linux-foundation.org: add helpful comment into lib/vsprintf.c]
[akpm@linux-foundation.org: text tweak]
Link: http://lkml.kernel.org/r/163a690510e636a23187c0dc9caa09ddac6d4cde.1488228427.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: William Roberts <william.c.roberts@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:10 -07:00
mchehab@s-opensource.com
6cc89134c0 kernel-api.rst: fix output of the vsnprintf() documentation
The vsnprintf() kernel-doc comment uses % character with a special
meaning other than escaping a constant. As ReST already defines
``literal`` as an escape sequence, let's make kernel-doc handle it,
and use it at lib/vsprintf.c.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-02 14:29:19 -06:00
Alexey Dobriyan
5b5e0928f7 lib/vsprintf.c: remove %Z support
Now that %z is standartised in C99 there is no reason to support %Z.
Unlike %L it doesn't even make format strings smaller.

Use BUILD_BUG_ON in a couple ATM drivers.

In case anyone didn't notice lib/vsprintf.o is about half of SLUB which
is in my opinion is quite an achievement.  Hopefully this patch inspires
someone else to trim vsprintf.c more.

Link: http://lkml.kernel.org/r/20170103230126.GA30170@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Andy Shevchenko
2b1b0d6670 lib/uuid.c: introduce a few more generic helpers
There are new helpers in this patch:

  uuid_is_valid		checks if a UUID is valid
  uuid_be_to_bin	converts from string to binary (big endian)
  uuid_le_to_bin	converts from string to binary (little endian)

They will be used in future, i.e. in the following patches in the series.

This also moves the indices arrays to lib/uuid.c to be shared accross
modules.

[andriy.shevchenko@linux.intel.com: fix typo]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-20 17:58:30 -07:00