10563 Commits

Author SHA1 Message Date
Bruno Martins
9162135978 Merge branch 'deprecated/android-4.9-q' of https://android.googlesource.com/kernel/common into HEAD
Conflicts:
	arch/arm/Makefile
	arch/arm/include/asm/unistd.h
	arch/arm/kernel/calls.S
	arch/arm64/include/asm/assembler.h
	arch/arm64/include/asm/cputype.h
	arch/arm64/kernel/bpi.S
	arch/arm64/kernel/cpu_errata.c
	arch/arm64/kernel/setup.c
	arch/arm64/kernel/vdso.c
	arch/arm64/mm/proc.S
	arch/mips/include/uapi/asm/Kbuild
	arch/powerpc/include/uapi/asm/Kbuild
	drivers/char/Kconfig
	drivers/char/random.c
	drivers/clk/qcom/clk-rcg2.c
	drivers/gpu/drm/drm_edid.c
	drivers/irqchip/irq-gic.c
	drivers/md/dm-table.c
	drivers/media/dvb-core/dmxdev.c
	drivers/mmc/core/core.c
	drivers/mmc/core/host.c
	drivers/mmc/core/mmc.c
	drivers/mmc/host/sdhci.c
	drivers/net/usb/lan78xx.c
	drivers/scsi/ufs/ufs_quirks.h
	drivers/scsi/ufs/ufshcd.c
	drivers/staging/android/ion/ion-ioctl.c
	drivers/staging/android/ion/ion.c
	drivers/staging/android/ion/ion_priv.h
	drivers/staging/android/ion/ion_system_heap.c
	drivers/tty/tty_io.c
	drivers/usb/core/hub.c
	drivers/usb/core/usb.h
	drivers/usb/dwc3/core.c
	drivers/usb/dwc3/gadget.c
	drivers/usb/gadget/composite.c
	drivers/usb/gadget/configfs.c
	drivers/usb/gadget/function/f_accessory.c
	drivers/usb/gadget/function/rndis.c
	drivers/usb/gadget/function/rndis.h
	fs/eventpoll.c
	fs/ext4/namei.c
	fs/fat/fatent.c
	fs/gfs2/acl.c
	include/linux/random.h
	include/uapi/drm/Kbuild
	include/uapi/linux/Kbuild
	include/uapi/linux/cifs/Kbuild
	include/uapi/linux/genwqe/Kbuild
	kernel/cpu.c
	kernel/exit.c
	kernel/sched/cpufreq_schedutil.c
	lib/Makefile
	lib/string.c
	mm/memory.c
	mm/page-writeback.c
	mm/page_alloc.c
	net/ipv4/udp.c
	net/ipv6/datagram.c
	net/ipv6/ip6_output.c
	net/netfilter/nf_conntrack_irc.c
	net/netfilter/xt_quota2.c
	net/netlink/genetlink.c
	security/selinux/avc.c
	security/selinux/include/objsec.h
	sound/core/compress_offload.c

Change-Id: I41982a5a8e22a21b72ec5dfa61a3680be66213f4
2023-03-26 12:09:00 +01:00
Greg Kroah-Hartman
7e6dfb2786 Merge 4.9.337 into android-4.9-q
Changes in 4.9.337
	mm/khugepaged: fix GUP-fast interaction by sending IPI
	mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths
	block: unhash blkdev part inode when the part is deleted
	ASoC: ops: Check bounds for second channel in snd_soc_put_volsw_sx()
	can: sja1000: fix size of OCR_MODE_MASK define
	ASoC: ops: Correct bounds check for second channel on SX controls
	udf: Discard preallocation before extending file with a hole
	udf: Drop unused arguments of udf_delete_aext()
	udf: Fix preallocation discarding at indirect extent boundary
	udf: Do not bother looking for prealloc extents if i_lenExtents matches i_size
	udf: Fix extending file within last block
	usb: gadget: uvc: Prevent buffer overflow in setup handler
	USB: serial: cp210x: add Kamstrup RF sniffer PIDs
	Bluetooth: L2CAP: Fix u8 overflow
	net: loopback: use NET_NAME_PREDICTABLE for name_assign_type
	drivers: soc: ti: knav_qmss_queue: Mark knav_acc_firmwares as static
	arm: dts: spear600: Fix clcd interrupt
	soc: ti: smartreflex: Fix PM disable depth imbalance in omap_sr_probe
	ARM: dts: dove: Fix assigned-addresses for every PCIe Root Port
	ARM: dts: armada-370: Fix assigned-addresses for every PCIe Root Port
	ARM: dts: armada-xp: Fix assigned-addresses for every PCIe Root Port
	ARM: dts: armada-375: Fix assigned-addresses for every PCIe Root Port
	ARM: dts: armada-38x: Fix assigned-addresses for every PCIe Root Port
	ARM: dts: armada-39x: Fix assigned-addresses for every PCIe Root Port
	ARM: mmp: fix timer_read delay
	pstore: Avoid kcore oops by vmap()ing with VM_IOREMAP
	cpuidle: dt: Return the correct numbers of parsed idle states
	alpha: fix syscall entry in !AUDUT_SYSCALL case
	PM: hibernate: Fix mistake in kerneldoc comment
	fs: don't audit the capability check in simple_xattr_list()
	perf: Fix possible memleak in pmu_dev_alloc()
	timerqueue: Use rb_entry_safe() in timerqueue_getnext()
	ocfs2: fix memory leak in ocfs2_stack_glue_init()
	MIPS: vpe-mt: fix possible memory leak while module exiting
	MIPS: vpe-cmp: fix possible memory leak while module exiting
	PNP: fix name memory leak in pnp_alloc_dev()
	irqchip: gic-pm: Use pm_runtime_resume_and_get() in gic_probe()
	libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value
	lib/notifier-error-inject: fix error when writing -errno to debugfs file
	rapidio: fix possible name leaks when rio_add_device() fails
	rapidio: rio: fix possible name leak in rio_register_mport()
	ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage()
	uprobes/x86: Allow to probe a NOP instruction with 0x66 prefix
	x86/xen: Fix memory leak in xen_init_lock_cpu()
	MIPS: BCM63xx: Add check for NULL for clk in clk_enable
	fs: sysv: Fix sysv_nblocks() returns wrong value
	rapidio: fix possible UAF when kfifo_alloc() fails
	eventfd: change int to __u64 in eventfd_signal() ifndef CONFIG_EVENTFD
	hfs: Fix OOB Write in hfs_asc2mac
	rapidio: devices: fix missing put_device in mport_cdev_open
	wifi: ath9k: hif_usb: fix memory leak of urbs in ath9k_hif_usb_dealloc_tx_urbs()
	wifi: ath9k: hif_usb: Fix use-after-free in ath9k_hif_usb_reg_in_cb()
	media: i2c: ad5820: Fix error path
	media: vivid: fix compose size exceed boundary
	mtd: Fix device name leak when register device failed in add_mtd_device()
	ASoC: pxa: fix null-pointer dereference in filter()
	regulator: core: fix unbalanced of node refcount in regulator_dev_lookup()
	ima: Fix misuse of dereference of pointer in template_desc_init_fields()
	wifi: ath10k: Fix return value in ath10k_pci_init()
	mtd: lpddr2_nvm: Fix possible null-ptr-deref
	Input: elants_i2c - properly handle the reset GPIO when power is off
	media: solo6x10: fix possible memory leak in solo_sysfs_init()
	media: platform: exynos4-is: Fix error handling in fimc_md_init()
	HID: hid-sensor-custom: set fixed size for custom attributes
	ALSA: seq: fix undefined behavior in bit shift for SNDRV_SEQ_FILTER_USE_EVENT
	clk: rockchip: Fix memory leak in rockchip_clk_register_pll()
	mtd: maps: pxa2xx-flash: fix memory leak in probe
	media: imon: fix a race condition in send_packet()
	pinctrl: pinconf-generic: add missing of_node_put()
	media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()
	NFSv4.2: Fix a memory stomp in decode_attr_security_label
	NFSv4: Fix a deadlock between nfs4_open_recover_helper() and delegreturn
	ALSA: asihpi: fix missing pci_disable_device()
	drm/radeon: Fix PCI device refcount leak in radeon_atrm_get_bios()
	drm/amdgpu: Fix PCI device refcount leak in amdgpu_atrm_get_bios()
	ASoC: pcm512x: Fix PM disable depth imbalance in pcm512x_probe
	bonding: uninitialized variable in bond_miimon_inspect()
	regulator: core: fix module refcount leak in set_supply()
	media: saa7164: fix missing pci_disable_device()
	ALSA: mts64: fix possible null-ptr-defer in snd_mts64_interrupt
	SUNRPC: Fix missing release socket in rpc_sockname()
	mmc: moxart: fix return value check of mmc_add_host()
	mmc: mxcmmc: fix return value check of mmc_add_host()
	mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host()
	mmc: toshsd: fix return value check of mmc_add_host()
	mmc: vub300: fix return value check of mmc_add_host()
	mmc: via-sdmmc: fix return value check of mmc_add_host()
	mmc: wbsd: fix return value check of mmc_add_host()
	mmc: mmci: fix return value check of mmc_add_host()
	media: c8sectpfe: Add of_node_put() when breaking out of loop
	media: coda: Add check for dcoda_iram_alloc
	media: coda: Add check for kmalloc
	wifi: rtl8xxxu: Add __packed to struct rtl8723bu_c2h
	wifi: brcmfmac: Fix error return code in brcmf_sdio_download_firmware()
	blktrace: Fix output non-blktrace event when blk_classic option enabled
	net: vmw_vsock: vmci: Check memcpy_from_msg()
	net: defxx: Fix missing err handling in dfx_init()
	drivers: net: qlcnic: Fix potential memory leak in qlcnic_sriov_init()
	ethernet: s2io: don't call dev_kfree_skb() under spin_lock_irqsave()
	net: farsync: Fix kmemleak when rmmods farsync
	net/tunnel: wait until all sk_user_data reader finish before releasing the sock
	net: apple: mace: don't call dev_kfree_skb() under spin_lock_irqsave()
	net: apple: bmac: don't call dev_kfree_skb() under spin_lock_irqsave()
	net: emaclite: don't call dev_kfree_skb() under spin_lock_irqsave()
	net: ethernet: dnet: don't call dev_kfree_skb() under spin_lock_irqsave()
	hamradio: don't call dev_kfree_skb() under spin_lock_irqsave()
	net: amd: lance: don't call dev_kfree_skb() under spin_lock_irqsave()
	ntb_netdev: Use dev_kfree_skb_any() in interrupt context
	Bluetooth: btusb: don't call kfree_skb() under spin_lock_irqsave()
	Bluetooth: hci_qca: don't call kfree_skb() under spin_lock_irqsave()
	Bluetooth: hci_h5: don't call kfree_skb() under spin_lock_irqsave()
	Bluetooth: hci_bcsp: don't call kfree_skb() under spin_lock_irqsave()
	Bluetooth: hci_core: don't call kfree_skb() under spin_lock_irqsave()
	stmmac: fix potential division by 0
	scsi: hpsa: Fix error handling in hpsa_add_sas_host()
	scsi: hpsa: Fix possible memory leak in hpsa_add_sas_device()
	scsi: fcoe: Fix possible name leak when device_register() fails
	scsi: ipr: Fix WARNING in ipr_init()
	scsi: fcoe: Fix transport not deattached when fcoe_if_init() fails
	scsi: snic: Fix possible UAF in snic_tgt_create()
	orangefs: Fix sysfs not cleanup when dev init failed
	crypto: img-hash - Fix variable dereferenced before check 'hdev->req'
	hwrng: amd - Fix PCI device refcount leak
	hwrng: geode - Fix PCI device refcount leak
	IB/IPoIB: Fix queue count inconsistency for PKEY child interfaces
	drivers: dio: fix possible memory leak in dio_init()
	vfio: platform: Do not pass return buffer to ACPI _RST method
	uio: uio_dmem_genirq: Fix missing unlock in irq configuration
	uio: uio_dmem_genirq: Fix deadlock between irq config and handling
	usb: fotg210-udc: Fix ages old endianness issues
	staging: vme_user: Fix possible UAF in tsi148_dma_list_add
	serial: amba-pl011: avoid SBSA UART accessing DMACR register
	serial: pch: Fix PCI device refcount leak in pch_request_dma()
	serial: sunsab: Fix error handling in sunsab_init()
	misc: tifm: fix possible memory leak in tifm_7xx1_switch_media()
	misc: sgi-gru: fix use-after-free error in gru_set_context_option, gru_fault and gru_handle_user_call_os
	cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()
	cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()
	drivers: mcb: fix resource leak in mcb_probe()
	mcb: mcb-parse: fix error handing in chameleon_parse_gdd()
	chardev: fix error handling in cdev_device_add()
	i2c: pxa-pci: fix missing pci_disable_device() on error in ce4100_i2c_probe
	staging: rtl8192u: Fix use after free in ieee80211_rx()
	staging: rtl8192e: Fix potential use-after-free in rtllib_rx_Monitor()
	vme: Fix error not catched in fake_init()
	i2c: ismt: Fix an out-of-bounds bug in ismt_access()
	usb: storage: Add check for kcalloc
	fbdev: ssd1307fb: Drop optional dependency
	fbdev: pm2fb: fix missing pci_disable_device()
	fbdev: via: Fix error in via_core_init()
	fbdev: vermilion: decrease reference count in error path
	fbdev: uvesafb: Fixes an error handling path in uvesafb_probe()
	HSI: omap_ssi_core: fix unbalanced pm_runtime_disable()
	HSI: omap_ssi_core: fix possible memory leak in ssi_probe()
	power: supply: fix residue sysfs file in error handle route of __power_supply_register()
	HSI: omap_ssi_core: Fix error handling in ssi_init()
	include/uapi/linux/swab: Fix potentially missing __always_inline
	rtc: snvs: Allow a time difference on clock register read
	iommu/fsl_pamu: Fix resource leak in fsl_pamu_probe()
	macintosh: fix possible memory leak in macio_add_one_device()
	macintosh/macio-adb: check the return value of ioremap()
	powerpc/52xx: Fix a resource leak in an error handling path
	powerpc/perf: callchain validate kernel stack pointer bounds
	powerpc/83xx/mpc832x_rdb: call platform_device_put() in error case in of_fsl_spi_probe()
	powerpc/hv-gpci: Fix hv_gpci event list
	selftests/powerpc: Fix resource leaks
	rtc: st-lpc: Add missing clk_disable_unprepare in st_rtc_probe()
	nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure
	mISDN: hfcsusb: don't call dev_kfree_skb/kfree_skb() under spin_lock_irqsave()
	mISDN: hfcpci: don't call dev_kfree_skb/kfree_skb() under spin_lock_irqsave()
	mISDN: hfcmulti: don't call dev_kfree_skb/kfree_skb() under spin_lock_irqsave()
	nfc: pn533: Clear nfc_target before being used
	r6040: Fix kmemleak in probe and remove
	openvswitch: Fix flow lookup to use unmasked key
	skbuff: Account for tail adjustment during pull operations
	net_sched: reject TCF_EM_SIMPLE case for complex ematch module
	myri10ge: Fix an error handling path in myri10ge_probe()
	net: stream: purge sk_error_queue in sk_stream_kill_queues()
	binfmt_misc: fix shift-out-of-bounds in check_special_flags
	fs: jfs: fix shift-out-of-bounds in dbAllocAG
	udf: Avoid double brelse() in udf_rename()
	fs: jfs: fix shift-out-of-bounds in dbDiscardAG
	ACPICA: Fix error code path in acpi_ds_call_control_method()
	nilfs2: fix shift-out-of-bounds/overflow in nilfs_sb2_bad_offset()
	acct: fix potential integer overflow in encode_comp_t()
	hfs: fix OOB Read in __hfs_brec_find
	wifi: ath9k: verify the expected usb_endpoints are present
	wifi: ar5523: Fix use-after-free on ar5523_cmd() timed out
	ipmi: fix memleak when unload ipmi driver
	net: ethernet: ti: Fix return type of netcp_ndo_start_xmit()
	hamradio: baycom_epp: Fix return type of baycom_send_packet()
	wifi: brcmfmac: Fix potential shift-out-of-bounds in brcmf_fw_alloc_request()
	igb: Do not free q_vector unless new one was allocated
	s390/ctcm: Fix return type of ctc{mp,}m_tx()
	s390/netiucv: Fix return type of netiucv_tx()
	s390/lcs: Fix return type of lcs_start_xmit()
	drm/sti: Use drm_mode_copy()
	md/raid1: stop mdx_raid1 thread when raid1 array run failed
	mrp: introduce active flags to prevent UAF when applicant uninit
	ppp: associate skb with a device at tx
	media: dvb-frontends: fix leak of memory fw
	media: dvb-usb: fix memory leak in dvb_usb_adapter_init()
	blk-mq: fix possible memleak when register 'hctx' failed
	mmc: f-sdh30: Add quirks for broken timeout clock capability
	media: si470x: Fix use-after-free in si470x_int_in_callback()
	clk: st: Fix memory leak in st_of_quadfs_setup()
	drm/fsl-dcu: Fix return type of fsl_dcu_drm_connector_mode_valid()
	drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid()
	orangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string()
	ASoC: mediatek: mt8173-rt5650-rt5514: fix refcount leak in mt8173_rt5650_rt5514_dev_probe()
	ASoC: wm8994: Fix potential deadlock
	ASoC: rockchip: spdif: Add missing clk_disable_unprepare() in rk_spdif_runtime_resume()
	ASoC: rt5670: Remove unbalanced pm_runtime_put()
	HID: wacom: Ensure bootloader PID is usable in hidraw mode
	reiserfs: Add missing calls to reiserfs_security_free()
	iio: adc: ad_sigma_delta: do not use internal iio_dev lock
	gcov: add support for checksum field
	powerpc/rtas: avoid scheduling in rtas_os_term()
	HID: plantronics: Additional PIDs for double volume key presses quirk
	hfsplus: fix bug causing custom uid and gid being unable to be assigned with mount
	ALSA: line6: correct midi status byte when receiving data from podxt
	ALSA: line6: fix stack overflow in line6_midi_transmit
	pnode: terminate at peers of source
	md: fix a crash in mempool_free
	mmc: vub300: fix warning - do not call blocking ops when !TASK_RUNNING
	media: stv0288: use explicitly signed char
	ktest.pl minconfig: Unset configs instead of just removing them
	ARM: ux500: do not directly dereference __iomem
	dm cache: Fix ABBA deadlock between shrink_slab and dm_cache_metadata_abort
	dm thin: Use last transaction's pmd->root when commit failed
	dm thin: Fix UAF in run_timer_softirq()
	dm cache: Fix UAF in destroy()
	dm cache: set needs_check flag after aborting metadata
	tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line
	ARM: 9256/1: NWFPE: avoid compiler-generated __aeabi_uldivmod
	media: dvb-core: Fix double free in dvb_register_device()
	cifs: fix confusing debug message
	PCI/sysfs: Fix double free in error path
	crypto: n2 - add missing hash statesize
	iommu/amd: Fix ivrs_acpihid cmdline parsing code
	parisc: led: Fix potential null-ptr-deref in start_task()
	device_cgroup: Roll back to original exceptions after copy failure
	drm/connector: send hotplug uevent on connector cleanup
	drm/vmwgfx: Validate the box size for the snooped cursor
	ext4: add inode table check in __ext4_get_inode_loc to aovid possible infinite loop
	ext4: fix undefined behavior in bit shift for ext4_check_flag_values
	ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
	ext4: init quota for 'old.inode' in 'ext4_rename'
	ext4: fix error code return to user-space in ext4_get_branch()
	ext4: avoid BUG_ON when creating xattrs
	ext4: initialize quota before expanding inode in setproject ioctl
	Linux 4.9.337

Change-Id: I923e3fef499ae1688b25c70a1a805b55a9f4f027
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2023-01-07 13:07:00 +01:00
Schspa Shi
98f53e5919 mrp: introduce active flags to prevent UAF when applicant uninit
[ Upstream commit ab0377803dafc58f1e22296708c1c28e309414d6 ]

The caller of del_timer_sync must prevent restarting of the timer, If
we have no this synchronization, there is a small probability that the
cancellation will not be successful.

And syzbot report the fellowing crash:
==================================================================
BUG: KASAN: use-after-free in hlist_add_head include/linux/list.h:929 [inline]
BUG: KASAN: use-after-free in enqueue_timer+0x18/0xa4 kernel/time/timer.c:605
Write at addr f9ff000024df6058 by task syz-fuzzer/2256
Pointer tag: [f9], memory tag: [fe]

CPU: 1 PID: 2256 Comm: syz-fuzzer Not tainted 6.1.0-rc5-syzkaller-00008-
ge01d50cbd6ee #0
Hardware name: linux,dummy-virt (DT)
Call trace:
 dump_backtrace.part.0+0xe0/0xf0 arch/arm64/kernel/stacktrace.c:156
 dump_backtrace arch/arm64/kernel/stacktrace.c:162 [inline]
 show_stack+0x18/0x40 arch/arm64/kernel/stacktrace.c:163
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x68/0x84 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x1a8/0x4a0 mm/kasan/report.c:395
 kasan_report+0x94/0xb4 mm/kasan/report.c:495
 __do_kernel_fault+0x164/0x1e0 arch/arm64/mm/fault.c:320
 do_bad_area arch/arm64/mm/fault.c:473 [inline]
 do_tag_check_fault+0x78/0x8c arch/arm64/mm/fault.c:749
 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:825
 el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:367
 el1h_64_sync_handler+0xd8/0xe4 arch/arm64/kernel/entry-common.c:427
 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:576
 hlist_add_head include/linux/list.h:929 [inline]
 enqueue_timer+0x18/0xa4 kernel/time/timer.c:605
 mod_timer+0x14/0x20 kernel/time/timer.c:1161
 mrp_periodic_timer_arm net/802/mrp.c:614 [inline]
 mrp_periodic_timer+0xa0/0xc0 net/802/mrp.c:627
 call_timer_fn.constprop.0+0x24/0x80 kernel/time/timer.c:1474
 expire_timers+0x98/0xc4 kernel/time/timer.c:1519

To fix it, we can introduce a new active flags to make sure the timer will
not restart.

Reported-by: syzbot+6fd64001c20aa99e34a4@syzkaller.appspotmail.com

Signed-off-by: Schspa Shi <schspa@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-07 12:07:32 +01:00
Greg Kroah-Hartman
9b95cf46cc Merge 4.9.331 into android-4.9-q
Changes in 4.9.331
	uas: add no-uas quirk for Hiksemi usb_disk
	usb-storage: Add Hiksemi USB3-FW to IGNORE_UAS
	uas: ignore UAS for Thinkplus chips
	net: usb: qmi_wwan: Add new usb-id for Dell branded EM7455
	ntfs: fix BUG_ON in ntfs_lookup_inode_by_name()
	mmc: moxart: fix 4-bit bus width and remove 8-bit bus width
	mm: prevent page_frag_alloc() from corrupting the memory
	Revert "drm: bridge: analogix/dp: add panel prepare/unprepare in suspend/resume time"
	Input: melfas_mip4 - fix return value check in mip4_probe()
	usbnet: Fix memory leak in usbnet_disconnect()
	nvme: add new line after variable declatation
	nvme: Fix IOC_PR_CLEAR and IOC_PR_RELEASE ioctls for nvme devices
	selftests: Fix the if conditions of in test_extra_filter()
	clk: iproc: Minor tidy up of iproc pll data structures
	clk: iproc: Do not rely on node name for correct PLL setup
	Makefile.extrawarn: Move -Wcast-function-type-strict to W=1
	ARM: fix function graph tracer and unwinder dependencies
	fs: fix UAF/GPF bug in nilfs_mdt_destroy
	dmaengine: xilinx_dma: cleanup for fetching xlnx,num-fstores property
	dmaengine: xilinx_dma: Report error in case of dma_set_mask_and_coherent API failure
	ARM: dts: fix Moxa SDIO 'compatible', remove 'sdhci' misnomer
	net/ieee802154: fix uninit value bug in dgram_sendmsg
	um: Cleanup syscall_handler_t cast in syscalls_32.h
	um: Cleanup compiler warning in arch/x86/um/tls_32.c
	usb: mon: make mmapped memory read only
	USB: serial: ftdi_sio: fix 300 bps rate for SIO
	nilfs2: fix NULL pointer dereference at nilfs_bmap_lookup_at_level()
	nilfs2: fix leak of nilfs_root in case of writer thread creation failure
	nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure
	ceph: don't truncate file in atomic_open
	random: clamp credited irq bits to maximum mixed
	ALSA: hda: Fix position reporting on Poulsbo
	scsi: stex: Properly zero out the passthrough command structure
	USB: serial: qcserial: add new usb-id for Dell branded EM7455
	random: avoid reading two cache lines on irq randomness
	wifi: mac80211_hwsim: avoid mac80211 warning on bad rate
	random: restore O_NONBLOCK support
	Input: xpad - add supported devices as contributed on github
	Input: xpad - fix wireless 360 controller breaking after suspend
	random: use expired timer rather than wq for mixing fast pool
	ALSA: oss: Fix potential deadlock at unregistration
	ALSA: rawmidi: Drop register_mutex in snd_rawmidi_free()
	ALSA: usb-audio: Fix potential memory leaks
	ALSA: usb-audio: Fix NULL dererence at error path
	iio: dac: ad5593r: Fix i2c read protocol requirements
	fs: dlm: fix race between test_bit() and queue_work()
	fs: dlm: handle -EBUSY first in lock arg validation
	quota: Check next/prev free block number after reading from quota file
	regulator: qcom_rpm: Fix circular deferral regression
	parisc: fbdev/stifb: Align graphics memory size to 4MB
	UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK
	PCI: Sanitise firmware BAR assignments behind a PCI-PCI bridge
	fbdev: smscufx: Fix use-after-free in ufx_ops_open()
	nilfs2: fix use-after-free bug of struct nilfs_root
	ext4: avoid crash when inline data creation follows DIO write
	ext4: fix null-ptr-deref in ext4_write_info
	ext4: make ext4_lazyinit_thread freezable
	ext4: place buffer head allocation before handle start
	ring-buffer: Allow splice to read previous partially read pages
	ring-buffer: Check pending waiters when doing wake ups as well
	ring-buffer: Fix race between reset page and reading page
	KVM: x86/emulator: Fix handing of POP SS to correctly set interruptibility
	selinux: use "grep -E" instead of "egrep"
	sh: machvec: Use char[] for section boundaries
	wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state()
	wifi: mac80211: allow bw change during channel switch in mesh
	wifi: rtl8xxxu: tighten bounds checking in rtl8xxxu_read_efuse()
	spi: qup: add missing clk_disable_unprepare on error in spi_qup_resume()
	spi: qup: add missing clk_disable_unprepare on error in spi_qup_pm_resume_runtime()
	wifi: rtl8xxxu: gen2: Fix mistake in path B IQ calibration
	net: fs_enet: Fix wrong check in do_pd_setup
	spi/omap100k:Fix PM disable depth imbalance in omap1_spi100k_probe
	mISDN: fix use-after-free bugs in l1oip timer handlers
	tcp: fix tcp_cwnd_validate() to not forget is_cwnd_limited
	net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks()
	bnx2x: fix potential memory leak in bnx2x_tpa_stop()
	drm/mipi-dsi: Detach devices when removing the host
	platform/x86: msi-laptop: Fix old-ec check for backlight registering
	mmc: au1xmmc: Fix an error handling path in au1xmmc_probe()
	ASoC: eureka-tlv320: Hold reference returned from of_find_xxx API
	ALSA: dmaengine: increment buffer pointer atomically
	memory: of: Fix refcount leak bug in of_get_ddr_timings()
	soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe()
	soc: qcom: smem_state: Add refcounting for the 'state->of_node'
	ARM: dts: kirkwood: lsxl: fix serial line
	ARM: dts: kirkwood: lsxl: remove first ethernet port
	ARM: Drop CMDLINE_* dependency on ATAGS
	ARM: dts: exynos: fix polarity of VBUS GPIO of Origen
	iio: adc: at91-sama5d2_adc: fix AT91_SAMA5D2_MR_TRACKTIM_MAX
	iio: inkern: only release the device node when done with it
	iio: ABI: Fix wrong format of differential capacitance channel ABI.
	clk: tegra: Fix refcount leak in tegra210_clock_init
	clk: tegra: Fix refcount leak in tegra114_clock_init
	clk: tegra20: Fix refcount leak in tegra20_clock_init
	HSI: omap_ssi: Fix refcount leak in ssi_probe
	HSI: omap_ssi_port: Fix dma_map_sg error check
	media: exynos4-is: fimc-is: Add of_node_put() when breaking out of loop
	tty: xilinx_uartps: Fix the ignore_status
	media: xilinx: vipp: Fix refcount leak in xvip_graph_dma_init
	RDMA/rxe: Fix "kernel NULL pointer dereference" error
	RDMA/rxe: Fix the error caused by qp->sk
	dyndbg: fix module.dyndbg handling
	dyndbg: let query-modname override actual module name
	ata: fix ata_id_sense_reporting_enabled() and ata_id_has_sense_reporting()
	ata: fix ata_id_has_devslp()
	ata: fix ata_id_has_ncq_autosense()
	ata: fix ata_id_has_dipm()
	drivers: serial: jsm: fix some leaks in probe
	firmware: google: Test spinlock on panic path to avoid lockups
	serial: 8250: Fix restoring termios speed after suspend
	mfd: intel_soc_pmic: Fix an error handling path in intel_soc_pmic_i2c_probe()
	mfd: lp8788: Fix an error handling path in lp8788_probe()
	mfd: lp8788: Fix an error handling path in lp8788_irq_init() and lp8788_irq_init()
	mfd: sm501: Add check for platform_driver_register()
	dmaengine: ioat: stop mod_timer from resurrecting deleted timer in __cleanup()
	clk: bcm2835: fix bcm2835_clock_rate_from_divisor declaration
	clk: ti: dra7-atl: Fix reference leak in of_dra7_atl_clk_probe
	powerpc/math_emu/efp: Include module.h
	powerpc/pci_dn: Add missing of_node_put()
	powerpc: Fix SPE Power ISA properties for e500v1 platforms
	iommu/omap: Fix buffer overflow in debugfs
	f2fs: fix race condition on setting FI_NO_EXTENT flag
	ACPI: video: Add Toshiba Satellite/Portege Z830 quirk
	MIPS: BCM47XX: Cast memcmp() of function to (void *)
	powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue
	thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash
	openvswitch: Fix double reporting of drops in dropwatch
	openvswitch: Fix overreporting of drops in dropwatch
	tcp: annotate data-race around tcp_md5sig_pool_populated
	xfrm: Update ipcomp_scratches with NULL when freed
	Bluetooth: L2CAP: initialize delayed works at l2cap_chan_create()
	Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times
	can: bcm: check the result of can_send() in bcm_can_tx()
	wifi: rt2x00: don't run Rt5592 IQ calibration on MT7620
	Bluetooth: L2CAP: Fix user-after-free
	r8152: Rate limit overflow messages
	drm: Use size_t type for len variable in drm_copy_field()
	drm: Prevent drm_copy_field() to attempt copying a NULL pointer
	platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading
	drm/amdgpu: fix initial connector audio value
	ARM: dts: imx7d-sdb: config the max pressure for tsc2046
	ARM: dts: imx6q: add missing properties for sram
	ARM: dts: imx6dl: add missing properties for sram
	ARM: dts: imx6qp: add missing properties for sram
	ARM: dts: imx6sl: add missing properties for sram
	media: cx88: Fix a null-ptr-deref bug in buffer_prepare()
	scsi: 3w-9xxx: Avoid disabling device if failing to enable it
	HID: roccat: Fix use-after-free in roccat_read()
	usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info()
	usb: musb: Fix musb_gadget.c rxstate overflow bug
	Revert "usb: storage: Add quirk for Samsung Fit flash"
	usb: idmouse: fix an uninit-value in idmouse_open
	perf intel-pt: Fix segfault in intel_pt_print_info() with uClibc
	net: ieee802154: return -EINVAL for unknown addr type
	net/ieee802154: don't warn zero-sized raw_sendmsg()
	ext4: continue to expand file system when the target size doesn't reach
	inet: fully convert sk->sk_rx_dst to RCU rules
	thermal: intel_powerclamp: Use first online CPU as control_cpu
	gcov: support GCC 12.1 and newer compilers
	Linux 4.9.331

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I105d6215a29d200abe3330f328ce3c2009ba0df9
2022-10-26 13:28:31 +02:00
Eric Dumazet
68c34ce11e inet: fully convert sk->sk_rx_dst to RCU rules
commit 8f905c0e7354ef261360fb7535ea079b1082c105 upstream.

syzbot reported various issues around early demux,
one being included in this changelog [1]

sk->sk_rx_dst is using RCU protection without clearly
documenting it.

And following sequences in tcp_v4_do_rcv()/tcp_v6_do_rcv()
are not following standard RCU rules.

[a]    dst_release(dst);
[b]    sk->sk_rx_dst = NULL;

They look wrong because a delete operation of RCU protected
pointer is supposed to clear the pointer before
the call_rcu()/synchronize_rcu() guarding actual memory freeing.

In some cases indeed, dst could be freed before [b] is done.

We could cheat by clearing sk_rx_dst before calling
dst_release(), but this seems the right time to stick
to standard RCU annotations and debugging facilities.

[1]
BUG: KASAN: use-after-free in dst_check include/net/dst.h:470 [inline]
BUG: KASAN: use-after-free in tcp_v4_early_demux+0x95b/0x960 net/ipv4/tcp_ipv4.c:1792
Read of size 2 at addr ffff88807f1cb73a by task syz-executor.5/9204

CPU: 0 PID: 9204 Comm: syz-executor.5 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247
 __kasan_report mm/kasan/report.c:433 [inline]
 kasan_report.cold+0x83/0xdf mm/kasan/report.c:450
 dst_check include/net/dst.h:470 [inline]
 tcp_v4_early_demux+0x95b/0x960 net/ipv4/tcp_ipv4.c:1792
 ip_rcv_finish_core.constprop.0+0x15de/0x1e80 net/ipv4/ip_input.c:340
 ip_list_rcv_finish.constprop.0+0x1b2/0x6e0 net/ipv4/ip_input.c:583
 ip_sublist_rcv net/ipv4/ip_input.c:609 [inline]
 ip_list_rcv+0x34e/0x490 net/ipv4/ip_input.c:644
 __netif_receive_skb_list_ptype net/core/dev.c:5508 [inline]
 __netif_receive_skb_list_core+0x549/0x8e0 net/core/dev.c:5556
 __netif_receive_skb_list net/core/dev.c:5608 [inline]
 netif_receive_skb_list_internal+0x75e/0xd80 net/core/dev.c:5699
 gro_normal_list net/core/dev.c:5853 [inline]
 gro_normal_list net/core/dev.c:5849 [inline]
 napi_complete_done+0x1f1/0x880 net/core/dev.c:6590
 virtqueue_napi_complete drivers/net/virtio_net.c:339 [inline]
 virtnet_poll+0xca2/0x11b0 drivers/net/virtio_net.c:1557
 __napi_poll+0xaf/0x440 net/core/dev.c:7023
 napi_poll net/core/dev.c:7090 [inline]
 net_rx_action+0x801/0xb40 net/core/dev.c:7177
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 common_interrupt+0x52/0xc0 arch/x86/kernel/irq.c:240
 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:629
RIP: 0033:0x7f5e972bfd57
Code: 39 d1 73 14 0f 1f 80 00 00 00 00 48 8b 50 f8 48 83 e8 08 48 39 ca 77 f3 48 39 c3 73 3e 48 89 13 48 8b 50 f8 48 89 38 49 8b 0e <48> 8b 3e 48 83 c3 08 48 83 c6 08 eb bc 48 39 d1 72 9e 48 39 d0 73
RSP: 002b:00007fff8a413210 EFLAGS: 00000283
RAX: 00007f5e97108990 RBX: 00007f5e97108338 RCX: ffffffff81d3aa45
RDX: ffffffff81d3aa45 RSI: 00007f5e97108340 RDI: ffffffff81d3aa45
RBP: 00007f5e97107eb8 R08: 00007f5e97108d88 R09: 0000000093c2e8d9
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f5e97107eb0
R13: 00007f5e97108338 R14: 00007f5e97107ea8 R15: 0000000000000019
 </TASK>

Allocated by task 13:
 kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 __kasan_slab_alloc+0x90/0xc0 mm/kasan/common.c:467
 kasan_slab_alloc include/linux/kasan.h:259 [inline]
 slab_post_alloc_hook mm/slab.h:519 [inline]
 slab_alloc_node mm/slub.c:3234 [inline]
 slab_alloc mm/slub.c:3242 [inline]
 kmem_cache_alloc+0x202/0x3a0 mm/slub.c:3247
 dst_alloc+0x146/0x1f0 net/core/dst.c:92
 rt_dst_alloc+0x73/0x430 net/ipv4/route.c:1613
 ip_route_input_slow+0x1817/0x3a20 net/ipv4/route.c:2340
 ip_route_input_rcu net/ipv4/route.c:2470 [inline]
 ip_route_input_noref+0x116/0x2a0 net/ipv4/route.c:2415
 ip_rcv_finish_core.constprop.0+0x288/0x1e80 net/ipv4/ip_input.c:354
 ip_list_rcv_finish.constprop.0+0x1b2/0x6e0 net/ipv4/ip_input.c:583
 ip_sublist_rcv net/ipv4/ip_input.c:609 [inline]
 ip_list_rcv+0x34e/0x490 net/ipv4/ip_input.c:644
 __netif_receive_skb_list_ptype net/core/dev.c:5508 [inline]
 __netif_receive_skb_list_core+0x549/0x8e0 net/core/dev.c:5556
 __netif_receive_skb_list net/core/dev.c:5608 [inline]
 netif_receive_skb_list_internal+0x75e/0xd80 net/core/dev.c:5699
 gro_normal_list net/core/dev.c:5853 [inline]
 gro_normal_list net/core/dev.c:5849 [inline]
 napi_complete_done+0x1f1/0x880 net/core/dev.c:6590
 virtqueue_napi_complete drivers/net/virtio_net.c:339 [inline]
 virtnet_poll+0xca2/0x11b0 drivers/net/virtio_net.c:1557
 __napi_poll+0xaf/0x440 net/core/dev.c:7023
 napi_poll net/core/dev.c:7090 [inline]
 net_rx_action+0x801/0xb40 net/core/dev.c:7177
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558

Freed by task 13:
 kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
 kasan_set_track+0x21/0x30 mm/kasan/common.c:46
 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
 ____kasan_slab_free mm/kasan/common.c:366 [inline]
 ____kasan_slab_free mm/kasan/common.c:328 [inline]
 __kasan_slab_free+0xff/0x130 mm/kasan/common.c:374
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:1723 [inline]
 slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1749
 slab_free mm/slub.c:3513 [inline]
 kmem_cache_free+0xbd/0x5d0 mm/slub.c:3530
 dst_destroy+0x2d6/0x3f0 net/core/dst.c:127
 rcu_do_batch kernel/rcu/tree.c:2506 [inline]
 rcu_core+0x7ab/0x1470 kernel/rcu/tree.c:2741
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558

Last potentially related work creation:
 kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xf5/0x120 mm/kasan/generic.c:348
 __call_rcu kernel/rcu/tree.c:2985 [inline]
 call_rcu+0xb1/0x740 kernel/rcu/tree.c:3065
 dst_release net/core/dst.c:177 [inline]
 dst_release+0x79/0xe0 net/core/dst.c:167
 tcp_v4_do_rcv+0x612/0x8d0 net/ipv4/tcp_ipv4.c:1712
 sk_backlog_rcv include/net/sock.h:1030 [inline]
 __release_sock+0x134/0x3b0 net/core/sock.c:2768
 release_sock+0x54/0x1b0 net/core/sock.c:3300
 tcp_sendmsg+0x36/0x40 net/ipv4/tcp.c:1441
 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:724
 sock_write_iter+0x289/0x3c0 net/socket.c:1057
 call_write_iter include/linux/fs.h:2162 [inline]
 new_sync_write+0x429/0x660 fs/read_write.c:503
 vfs_write+0x7cd/0xae0 fs/read_write.c:590
 ksys_write+0x1ee/0x250 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

The buggy address belongs to the object at ffff88807f1cb700
 which belongs to the cache ip_dst_cache of size 176
The buggy address is located 58 bytes inside of
 176-byte region [ffff88807f1cb700, ffff88807f1cb7b0)
The buggy address belongs to the page:
page:ffffea0001fc72c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7f1cb
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 dead000000000100 dead000000000122 ffff8881413bb780
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 5, ts 108466983062, free_ts 108048976062
 prep_new_page mm/page_alloc.c:2418 [inline]
 get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4149
 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5369
 alloc_pages+0x1a7/0x300 mm/mempolicy.c:2191
 alloc_slab_page mm/slub.c:1793 [inline]
 allocate_slab mm/slub.c:1930 [inline]
 new_slab+0x32d/0x4a0 mm/slub.c:1993
 ___slab_alloc+0x918/0xfe0 mm/slub.c:3022
 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3109
 slab_alloc_node mm/slub.c:3200 [inline]
 slab_alloc mm/slub.c:3242 [inline]
 kmem_cache_alloc+0x35c/0x3a0 mm/slub.c:3247
 dst_alloc+0x146/0x1f0 net/core/dst.c:92
 rt_dst_alloc+0x73/0x430 net/ipv4/route.c:1613
 __mkroute_output net/ipv4/route.c:2564 [inline]
 ip_route_output_key_hash_rcu+0x921/0x2d00 net/ipv4/route.c:2791
 ip_route_output_key_hash+0x18b/0x300 net/ipv4/route.c:2619
 __ip_route_output_key include/net/route.h:126 [inline]
 ip_route_output_flow+0x23/0x150 net/ipv4/route.c:2850
 ip_route_output_key include/net/route.h:142 [inline]
 geneve_get_v4_rt+0x3a6/0x830 drivers/net/geneve.c:809
 geneve_xmit_skb drivers/net/geneve.c:899 [inline]
 geneve_xmit+0xc4a/0x3540 drivers/net/geneve.c:1082
 __netdev_start_xmit include/linux/netdevice.h:4994 [inline]
 netdev_start_xmit include/linux/netdevice.h:5008 [inline]
 xmit_one net/core/dev.c:3590 [inline]
 dev_hard_start_xmit+0x1eb/0x920 net/core/dev.c:3606
 __dev_queue_xmit+0x299a/0x3650 net/core/dev.c:4229
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1338 [inline]
 free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1389
 free_unref_page_prepare mm/page_alloc.c:3309 [inline]
 free_unref_page+0x19/0x690 mm/page_alloc.c:3388
 qlink_free mm/kasan/quarantine.c:146 [inline]
 qlist_free_all+0x5a/0xc0 mm/kasan/quarantine.c:165
 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272
 __kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:444
 kasan_slab_alloc include/linux/kasan.h:259 [inline]
 slab_post_alloc_hook mm/slab.h:519 [inline]
 slab_alloc_node mm/slub.c:3234 [inline]
 kmem_cache_alloc_node+0x255/0x3f0 mm/slub.c:3270
 __alloc_skb+0x215/0x340 net/core/skbuff.c:414
 alloc_skb include/linux/skbuff.h:1126 [inline]
 alloc_skb_with_frags+0x93/0x620 net/core/skbuff.c:6078
 sock_alloc_send_pskb+0x783/0x910 net/core/sock.c:2575
 mld_newpack+0x1df/0x770 net/ipv6/mcast.c:1754
 add_grhead+0x265/0x330 net/ipv6/mcast.c:1857
 add_grec+0x1053/0x14e0 net/ipv6/mcast.c:1995
 mld_send_initial_cr.part.0+0xf6/0x230 net/ipv6/mcast.c:2242
 mld_send_initial_cr net/ipv6/mcast.c:1232 [inline]
 mld_dad_work+0x1d3/0x690 net/ipv6/mcast.c:2268
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445

Memory state around the buggy address:
 ffff88807f1cb600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88807f1cb680: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
>ffff88807f1cb700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                        ^
 ffff88807f1cb780: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
 ffff88807f1cb800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

Fixes: 41063e9dd1 ("ipv4: Early TCP socket demux.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20211220143330.680945-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
[cmllamas: backported to 4.9; dropped irrelevant hunks in ipv6/udp.c;
 added rcu_access_pointer(sk->sk_rx_dst) in tcp_prequeue().]
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:15:48 +02:00
Alexander Aring
33908a3cad net: ieee802154: return -EINVAL for unknown addr type
commit 30393181fdbc1608cc683b4ee99dcce05ffcc8c7 upstream.

This patch adds handling to return -EINVAL for an unknown addr type. The
current behaviour is to return 0 as successful but the size of an
unknown addr type is not defined and should return an error like -EINVAL.

Fixes: 94160108a70c ("net/ieee802154: fix uninit value bug in dgram_sendmsg")
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:15:48 +02:00
Neal Cardwell
1f6e420d0c tcp: fix tcp_cwnd_validate() to not forget is_cwnd_limited
[ Upstream commit f4ce91ce12a7c6ead19b128ffa8cff6e3ded2a14 ]

This commit fixes a bug in the tracking of max_packets_out and
is_cwnd_limited. This bug can cause the connection to fail to remember
that is_cwnd_limited is true, causing the connection to fail to grow
cwnd when it should, causing throughput to be lower than it should be.

The following event sequence is an example that triggers the bug:

 (a) The connection is cwnd_limited, but packets_out is not at its
     peak due to TSO deferral deciding not to send another skb yet.
     In such cases the connection can advance max_packets_seq and set
     tp->is_cwnd_limited to true and max_packets_out to a small
     number.

(b) Then later in the round trip the connection is pacing-limited (not
     cwnd-limited), and packets_out is larger. In such cases the
     connection would raise max_packets_out to a bigger number but
     (unexpectedly) flip tp->is_cwnd_limited from true to false.

This commit fixes that bug.

One straightforward fix would be to separately track (a) the next
window after max_packets_out reaches a maximum, and (b) the next
window after tp->is_cwnd_limited is set to true. But this would
require consuming an extra u32 sequence number.

Instead, to save space we track only the most important
information. Specifically, we track the strongest available signal of
the degree to which the cwnd is fully utilized:

(1) If the connection is cwnd-limited then we remember that fact for
the current window.

(2) If the connection not cwnd-limited then we track the maximum
number of outstanding packets in the current window.

In particular, note that the new logic cannot trigger the buggy
(a)/(b) sequence above because with the new logic a condition where
tp->packets_out > tp->max_packets_out can only trigger an update of
tp->is_cwnd_limited if tp->is_cwnd_limited is false.

This first showed up in a testing of a BBRv2 dev branch, but this
buggy behavior highlighted a general issue with the
tcp_cwnd_validate() logic that can cause cwnd to fail to increase at
the proper rate for any TCP congestion control, including Reno or
CUBIC.

Fixes: ca8a226343 ("tcp: make cwnd-limited checks measurement-based, and gentler")
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Kevin(Yudong) Yang <yyd@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-26 13:15:40 +02:00
Haimin Zhang
f407571793 net/ieee802154: fix uninit value bug in dgram_sendmsg
[ Upstream commit 94160108a70c8af17fa1484a37e05181c0e094af ]

There is uninit value bug in dgram_sendmsg function in
net/ieee802154/socket.c when the length of valid data pointed by the
msg->msg_name isn't verified.

We introducing a helper function ieee802154_sockaddr_check_size to
check namelen. First we check there is addr_type in ieee802154_addr_sa.
Then, we check namelen according to addr_type.

Also fixed in raw_bind, dgram_bind, dgram_connect.

Signed-off-by: Haimin Zhang <tcs_kernel@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-26 13:15:34 +02:00
Greg Kroah-Hartman
1f866c53ec Merge 4.9.327 into android-4.9-q
Changes in 4.9.327
	parisc: Fix exception handler for fldw and fstw instructions
	xfrm: fix refcount leak in __xfrm_policy_check()
	af_key: Do not call xfrm_probe_algs in parallel
	rose: check NULL rose_loopback_neigh->loopback
	bonding: 802.3ad: fix no transmission of LACPDUs
	netfilter: nft_payload: report ERANGE for too long offset and length
	ratelimit: Fix data-races in ___ratelimit().
	net: Fix a data-race around sysctl_tstamp_allow_data.
	net: Fix a data-race around sysctl_net_busy_poll.
	net: Fix a data-race around sysctl_net_busy_read.
	net: Fix a data-race around sysctl_somaxconn.
	ixgbe: stop resetting SYSTIME in ixgbe_ptp_start_cyclecounter
	btrfs: check if root is readonly while setting security xattr
	loop: Check for overflow while configuring loop
	asm-generic: sections: refactor memory_intersects
	mm/hugetlb: fix hugetlb not supporting softdirty tracking
	mm: Force TLB flush for PFNMAP mappings before unlink_file_vma()
	s390/mm: do not trigger write fault when vma does not allow VM_WRITE
	x86/cpu: Add Tiger Lake to Intel family
	x86/bugs: Add "unknown" reporting for MMIO Stale Data
	kbuild: Fix include path in scripts/Makefile.modpost
	Bluetooth: L2CAP: Fix build errors in some archs
	media: pvrusb2: fix memory leak in pvr_probe
	HID: hidraw: fix memory leak in hidraw_release()
	fbdev: fb_pm2fb: Avoid potential divide by zero error
	ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead
	arm64: map FDT as RW for early_init_dt_scan()
	s390/hypfs: avoid error message under KVM
	netfilter: conntrack: NF_CONNTRACK_PROCFS should no longer default to y
	mm/rmap: Fix anon_vma->degree ambiguity leading to double-reuse
	kprobes: don't call disarm_kprobe() for disabled kprobes
	Linux 4.9.327

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I6944c82cad25fbe5a35384f4ef0b7fb485203a05
2022-09-05 14:02:59 +02:00
Kuniyuki Iwashima
7a34fb980e net: Fix a data-race around sysctl_net_busy_poll.
[ Upstream commit c42b7cddea47503411bfb5f2f93a4154aaffa2d9 ]

While reading sysctl_net_busy_poll, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 0602129286 ("net: add low latency socket poll")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-05 10:23:55 +02:00
Greg Kroah-Hartman
33296e8a81 Merge 4.9.326 into android-4.9-q
Changes in 4.9.326
	Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put
	ntfs: fix use-after-free in ntfs_ucsncmp()
	scsi: ufs: host: Hold reference returned by of_parse_phandle()
	net: ping6: Fix memleak in ipv6_renew_options().
	net: sungem_phy: Add of_node_put() for reference returned by of_get_parent()
	netfilter: nf_queue: do not allow packet truncation below transport header offset
	ARM: crypto: comment out gcc warning that breaks clang builds
	mt7601u: add USB device ID for some versions of XiaoDu WiFi Dongle.
	ion: Make user_ion_handle_put_nolock() a void function
	selinux: Minor cleanups
	proc: Pass file mode to proc_pid_make_inode
	selinux: Clean up initialization of isec->sclass
	selinux: Convert isec->lock into a spinlock
	selinux: fix error initialization in inode_doinit_with_dentry()
	selinux: fix inode_doinit_with_dentry() LABEL_INVALID error handling
	include/uapi/linux/swab.h: fix userspace breakage, use __BITS_PER_LONG for swap
	init/main: Fix double "the" in comment
	init/main: properly align the multi-line comment
	init: move stack canary initialization after setup_arch
	init/main.c: extract early boot entropy from the passed cmdline
	ACPI: video: Force backlight native for some TongFang devices
	ACPI: video: Shortening quirk list by identifying Clevo by board_name only
	random: only call boot_init_stack_canary() once
	macintosh/adb: fix oob read in do_adb_query() function
	ALSA: bcd2000: Fix a UAF bug on the error path of probing
	add barriers to buffer_uptodate and set_buffer_uptodate
	KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0
	KVM: x86: Mark TSS busy during LTR emulation _after_ all fault checks
	ALSA: hda/conexant: Add quirk for LENOVO 20149 Notebook model
	ALSA: hda/cirrus - support for iMac 12,1 model
	vfs: Check the truncate maximum size in inode_newsize_ok()
	usbnet: Fix linkwatch use-after-free on disconnect
	parisc: Fix device names in /proc/iomem
	drm/nouveau: fix another off-by-one in nvbios_addr
	bpf: fix overflow in prog accounting
	fuse: limit nsec
	md-raid10: fix KASAN warning
	ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr()
	PCI: Add defines for normal and subtractive PCI bridges
	powerpc/fsl-pci: Fix Class Code of PCIe Root Port
	powerpc/powernv: Avoid crashing if rng is NULL
	MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK
	USB: HCD: Fix URB giveback issue in tasklet function
	netfilter: nf_tables: fix null deref due to zeroed list head
	scsi: zfcp: Fix missing auto port scan and thus missing target ports
	x86/olpc: fix 'logical not is only applied to the left hand side'
	spmi: trace: fix stack-out-of-bound access in SPMI tracing functions
	ext4: add EXT4_INODE_HAS_XATTR_SPACE macro in xattr.h
	ext4: make sure ext4_append() always allocates new block
	ext4: fix use-after-free in ext4_xattr_set_entry
	ext4: update s_overhead_clusters in the superblock during an on-line resize
	ext4: fix extent status tree race in writeback error recovery path
	ext4: correct max_inline_xattr_value_size computing
	dm raid: fix address sanitizer warning in raid_status
	net_sched: cls_route: remove from list when handle is 0
	btrfs: reject log replay if there is unsupported RO compat flag
	tcp: fix over estimation in sk_forced_mem_schedule()
	scsi: sg: Allow waiting for commands to complete on removed device
	Revert "net: usb: ax88179_178a needs FLAG_SEND_ZLP"
	Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm regression
	nios2: time: Read timer in get_cycles only if initialized
	net/9p: Initialize the iounit field during fid creation
	net_sched: cls_route: disallow handle of 0
	ALSA: info: Fix llseek return value when using callback
	rds: add missing barrier to release_refill
	ata: libata-eh: Add missing command name
	btrfs: fix lost error handling when looking up extended ref on log replay
	can: ems_usb: fix clang's -Wunaligned-access warning
	NFSv4.1: RECLAIM_COMPLETE must handle EACCES
	SUNRPC: Reinitialise the backchannel request buffers before reuse
	pinctrl: nomadik: Fix refcount leak in nmk_pinctrl_dt_subnode_to_map
	pinctrl: qcom: msm8916: Allow CAMSS GP clocks to be muxed
	vsock: Fix memory leak in vsock_connect()
	xen/xenbus: fix return type in xenbus_file_read()
	atm: idt77252: fix use-after-free bugs caused by tst_timer
	nios2: page fault et.al. are *not* restartable syscalls...
	nios2: don't leave NULLs in sys_call_table[]
	nios2: traced syscall does need to check the syscall number
	nios2: fix syscall restart checks
	nios2: restarts apply only to the first sigframe we build...
	nios2: add force_successful_syscall_return()
	netfilter: nf_tables: really skip inactive sets when allocating name
	fec: Fix timer capture timing in `fec_ptp_enable_pps()`
	irqchip/tegra: Fix overflow implicit truncation warnings
	usb: host: ohci-ppc-of: Fix refcount leak bug
	gadgetfs: ep_io - wait until IRQ finishes
	cxl: Fix a memory leak in an error handling path
	drivers:md:fix a potential use-after-free bug
	ext4: avoid remove directory when directory is corrupted
	ext4: avoid resizing to a partial cluster size
	tty: serial: Fix refcount leak bug in ucc_uart.c
	vfio: Clear the caps->buf to NULL after free
	mips: cavium-octeon: Fix missing of_node_put() in octeon2_usb_clocks_start
	ALSA: core: Add async signal helpers
	ALSA: timer: Use deferred fasync helper
	powerpc/64: Init jump labels before parse_early_param()
	video: fbdev: i740fb: Check the argument of i740_calc_vclk()
	MIPS: tlbex: Explicitly compare _PAGE_NO_EXEC against 0
	Linux 4.9.326

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I3ca17af58cd0c61bd81028c496849592cfd22f0f
2022-08-25 12:09:51 +02:00
Luiz Augusto von Dentz
d255c861e2 Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put
commit d0be8347c623e0ac4202a1d4e0373882821f56b0 upstream.

This fixes the following trace which is caused by hci_rx_work starting up
*after* the final channel reference has been put() during sock_close() but
*before* the references to the channel have been destroyed, so instead
the code now rely on kref_get_unless_zero/l2cap_chan_hold_unless_zero to
prevent referencing a channel that is about to be destroyed.

  refcount_t: increment on 0; use-after-free.
  BUG: KASAN: use-after-free in refcount_dec_and_test+0x20/0xd0
  Read of size 4 at addr ffffffc114f5bf18 by task kworker/u17:14/705

  CPU: 4 PID: 705 Comm: kworker/u17:14 Tainted: G S      W
  4.14.234-00003-g1fb6d0bd49a4-dirty #28
  Hardware name: Qualcomm Technologies, Inc. SM8150 V2 PM8150
  Google Inc. MSM sm8150 Flame DVT (DT)
  Workqueue: hci0 hci_rx_work
  Call trace:
   dump_backtrace+0x0/0x378
   show_stack+0x20/0x2c
   dump_stack+0x124/0x148
   print_address_description+0x80/0x2e8
   __kasan_report+0x168/0x188
   kasan_report+0x10/0x18
   __asan_load4+0x84/0x8c
   refcount_dec_and_test+0x20/0xd0
   l2cap_chan_put+0x48/0x12c
   l2cap_recv_frame+0x4770/0x6550
   l2cap_recv_acldata+0x44c/0x7a4
   hci_acldata_packet+0x100/0x188
   hci_rx_work+0x178/0x23c
   process_one_work+0x35c/0x95c
   worker_thread+0x4cc/0x960
   kthread+0x1a8/0x1c4
   ret_from_fork+0x10/0x18

Cc: stable@kernel.org
Reported-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tested-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-25 11:09:20 +02:00
Greg Kroah-Hartman
5a227d815c Merge 4.9.325 into android-4.9-q
Changes in 4.9.325
	security,selinux,smack: kill security_task_wait hook
	xen/gntdev: Ignore failure to unmap INVALID_GRANT_HANDLE
	misc: rtsx_usb: fix use of dma mapped buffer for usb bulk transfer
	misc: rtsx_usb: use separate command and response buffers
	misc: rtsx_usb: set return value in rsp_buf alloc err path
	xfrm: xfrm_policy: fix a possible double xfrm_pols_put() in xfrm_bundle_lookup()
	power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe
	perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()
	ip: Fix a data-race around sysctl_fwmark_reflect.
	tcp/dccp: Fix a data-race around sysctl_tcp_fwmark_accept.
	tcp: Fix a data-race around sysctl_tcp_probe_threshold.
	i2c: cadence: Change large transfer count reset logic to be unconditional
	igmp: Fix data-races around sysctl_igmp_llm_reports.
	igmp: Fix a data-race around sysctl_igmp_max_memberships.
	tcp: Fix a data-race around sysctl_tcp_notsent_lowat.
	be2net: Fix buffer overflow in be_get_module_eeprom
	Revert "Revert "char/random: silence a lockdep splat with printk()""
	mm/mempolicy: fix uninit-value in mpol_rebind_policy()
	bpf: Make sure mac_header was set before using it
	ALSA: memalloc: Align buffer allocations in page size
	tty: drivers/tty/, stop using tty_schedule_flip()
	tty: the rest, stop using tty_schedule_flip()
	tty: drop tty_schedule_flip()
	tty: extract tty_flip_buffer_commit() from tty_flip_buffer_push()
	tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()
	net: usb: ax88179_178a needs FLAG_SEND_ZLP
	Linux 4.9.325

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia0b4189557d82a2402819decbcf4eb3c7a204d86
2022-07-29 18:58:19 +02:00
Kuniyuki Iwashima
91e21df688 tcp: Fix a data-race around sysctl_tcp_notsent_lowat.
[ Upstream commit 55be873695ed8912eb77ff46d1d1cadf028bd0f3 ]

While reading sysctl_tcp_notsent_lowat, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: c9bee3b7fd ("tcp: TCP_NOTSENT_LOWAT socket option")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-07-29 17:05:46 +02:00
Kuniyuki Iwashima
13207f9485 tcp/dccp: Fix a data-race around sysctl_tcp_fwmark_accept.
[ Upstream commit 1a0008f9df59451d0a17806c1ee1a19857032fa8 ]

While reading sysctl_tcp_fwmark_accept, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 84f39b08d7 ("net: support marking accepting TCP sockets")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-07-29 17:05:45 +02:00
Kuniyuki Iwashima
fc92e3b4be ip: Fix a data-race around sysctl_fwmark_reflect.
[ Upstream commit 85d0b4dbd74b95cc492b1f4e34497d3f894f5d9a ]

While reading sysctl_fwmark_reflect, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: e110861f86 ("net: add a sysctl to reflect the fwmark on replies")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-07-29 17:05:45 +02:00
Eric Biggers
ea690b6ba4 Merge 4.9.320 into android-4.9-q
Changes in 4.9.320
	9p: missing chunk of "fs/9p: Don't update file type when updating file attributes"
	random: remove stale maybe_reseed_primary_crng
	random: remove stale urandom_init_wait
	random: remove variable limit
	random: fix comment for unused random_min_urandom_seed
	random: convert get_random_int/long into get_random_u32/u64
	random: move random_min_urandom_seed into CONFIG_SYSCTL ifdef block
	random: invalidate batched entropy after crng init
	random: silence compiler warnings and fix race
	random: add wait_for_random_bytes() API
	random: add get_random_{bytes,u32,u64,int,long,once}_wait family
	random: warn when kernel uses unseeded randomness
	random: do not ignore early device randomness
	random: suppress spammy warnings about unseeded randomness
	random: reorder READ_ONCE() in get_random_uXX
	random: fix warning message on ia64 and parisc
	random: use a different mixing algorithm for add_device_randomness()
	random: set up the NUMA crng instances after the CRNG is fully initialized
	random: fix possible sleeping allocation from irq context
	random: rate limit unseeded randomness warnings
	random: add a spinlock_t to struct batched_entropy
	char/random: silence a lockdep splat with printk()
	Revert "char/random: silence a lockdep splat with printk()"
	random: always use batched entropy for get_random_u{32,64}
	random: fix data race on crng_node_pool
	crypto: chacha20 - Fix keystream alignment for chacha20_block()
	random: always fill buffer in get_random_bytes_wait
	random: optimize add_interrupt_randomness
	drivers/char/random.c: remove unused dont_count_entropy
	random: Fix whitespace pre random-bytes work
	random: Return nbytes filled from hw RNG
	random: add a config option to trust the CPU's hwrng
	random: remove preempt disabled region
	random: Make crng state queryable
	random: make CPU trust a boot parameter
	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: Deduplicate le32_to_cpu_array() and cpu_to_le32_array()
	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
	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
	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
	crypto: chacha20 - Fix chacha20_block() keystream alignment (again)
	random: cleanup integer types
	random: remove incomplete last_data logic
	random: remove unused extract_entropy() reserved argument
	random: try to actively add entropy rather than passively wait for it
	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
	workqueue: make workqueue available early during boot
	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()
	hwrng: core - do not use multiple blank lines
	hwrng: core - rewrite better comparison to NULL
	hwrng: core - Rewrite the header
	hwrng: core - Move hwrng miscdev minor number to include/linux/miscdevice.h
	hwrng: core - remove unused PFX macro
	hwrng: use rng source with best quality
	hwrng: remember rng chosen by user
	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
	uapi: rename ext2_swab() to swab() and share globally in swab.h
	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
	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
	scsi: vmw_pvscsi: Expand vcpuHint to 16 bits
	scsi: lpfc: Fix port stuck in bypassed state after LIP in PT2PT topology
	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
	misc: atmel-ssc: Fix IRQ check in ssc_probe
	irqchip/gic/realview: Fix refcount leak in realview_gic_of_init
	irqchip/gic-v3: Iterate over possible CPUs by for_each_possible_cpu()
	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: 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
	l2tp: don't use inet_shutdown on ppp session destroy
	l2tp: fix race in pppol2tp_release with session object destroy
	s390/mm: use non-quiescing sske for KVM switch to keyed guest
	xprtrdma: fix incorrect header size calculations
	swiotlb: fix info leak with DMA_FROM_DEVICE
	Reinstate some of "swiotlb: rework "fix info leak with DMA_FROM_DEVICE""
	fuse: fix pipe buffer lifetime for direct_io
	tcp: change source port randomizarion at connect() time
	tcp: add some entropy in __inet_hash_connect()
	secure_seq: use the 64 bits of the siphash for port offset calculation
	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
	Linux 4.9.320

Conflicts:
	crypto/chacha20_generic.c
	drivers/char/random.c
	drivers/of/fdt.c
	include/crypto/chacha20.h
	lib/chacha20.c

Merge resolution notes:
  - Added CHACHA20_KEY_SIZE and CHACHA20_BLOCK_SIZE constants to
    chacha.h, to minimize changes from the 4.9.320 version of random.c

  - Updated lib/vsprintf.c for
    "random: replace custom notifier chain with standard one".

Change-Id: Ia7a12d8883b808f88bbe807d6150552bb084f6b3
Signed-off-by: Eric Biggers <ebiggers@google.com>
2022-06-28 16:46:38 +00:00
Willy Tarreau
576696ed0d secure_seq: use the 64 bits of the siphash for port offset calculation
commit b2d057560b8107c633b39aabe517ff9d93f285e3 upstream.

SipHash replaced MD5 in secure_ipv{4,6}_port_ephemeral() via commit
7cd23e5300c1 ("secure_seq: use SipHash in place of MD5"), but the output
remained truncated to 32-bit only. In order to exploit more bits from the
hash, let's make the functions return the full 64-bit of siphash_3u32().
We also make sure the port offset calculation in __inet_hash_connect()
remains done on 32-bit to avoid the need for div_u64_rem() and an extra
cost on 32-bit systems.

Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Moshe Kol <moshe.kol@mail.huji.ac.il>
Cc: Yossi Gilad <yossi.gilad@mail.huji.ac.il>
Cc: Amit Klein <aksecurity@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-25 11:45:19 +02:00
Greg Kroah-Hartman
34f36f2533 Merge 4.9.314 into android-4.9-q
Changes in 4.9.314
	MIPS: Use address-of operator on section symbols
	block: drbd: drbd_nl: Make conversion to 'enum drbd_ret_code' explicit
	can: grcan: grcan_probe(): fix broken system id check for errata workaround needs
	can: grcan: only use the NAPI poll budget for RX
	Bluetooth: Fix the creation of hdev->name
	mmc: rtsx: add 74 Clocks in power on flow
	mm: userfaultfd: fix missing cache flush in mcopy_atomic_pte() and __mcopy_atomic()
	Linux 4.9.314

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I787a9e5c4da26661fc24a7e6600711eebf7be3df
2022-05-16 08:47:01 +02:00
Itay Iellin
b104109c9f Bluetooth: Fix the creation of hdev->name
commit 103a2f3255a95991252f8f13375c3a96a75011cd upstream.

Set a size limit of 8 bytes of the written buffer to "hdev->name"
including the terminating null byte, as the size of "hdev->name" is 8
bytes. If an id value which is greater than 9999 is allocated,
then the "snprintf(hdev->name, sizeof(hdev->name), "hci%d", id)"
function call would lead to a truncation of the id value in decimal
notation.

Set an explicit maximum id parameter in the id allocation function call.
The id allocation function defines the maximum allocated id value as the
maximum id parameter value minus one. Therefore, HCI_MAX_ID is defined
as 10000.

Signed-off-by: Itay Iellin <ieitayie@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-05-15 19:39:17 +02:00
Greg Kroah-Hartman
f1a1131aa8 Merge 4.9.313 into android-4.9-q
Changes in 4.9.313
	floppy: disable FDRAWCMD by default
	Revert "net: ethernet: stmmac: fix altr_tse_pcs function when using a fixed-link"
	lightnvm: disable the subsystem
	USB: quirks: add a Realtek card reader
	USB: quirks: add STRING quirk for VCOM device
	USB: serial: whiteheat: fix heap overflow in WHITEHEAT_GET_DTR_RTS
	USB: serial: cp210x: add PIDs for Kamstrup USB Meter Reader
	USB: serial: option: add support for Cinterion MV32-WA/MV32-WB
	USB: serial: option: add Telit 0x1057, 0x1058, 0x1075 compositions
	xhci: stop polling roothubs after shutdown
	iio: dac: ad5592r: Fix the missing return value.
	iio: dac: ad5446: Fix read_raw not returning set value
	iio: magnetometer: ak8975: Fix the error handling in ak8975_power_on()
	usb: misc: fix improper handling of refcount in uss720_probe()
	usb: gadget: uvc: Fix crash when encoding data for usb request
	usb: gadget: configfs: clear deactivation flag in configfs_composite_unbind()
	serial: 8250: Also set sticky MCR bits in console restoration
	serial: 8250: Correct the clock for EndRun PTP/1588 PCIe device
	hex2bin: make the function hex_to_bin constant-time
	hex2bin: fix access beyond string end
	ARM: dts: imx6qdl-apalis: Fix sgtl5000 detection issue
	phy: samsung: Fix missing of_node_put() in exynos_sata_phy_probe
	phy: samsung: exynos5250-sata: fix missing device put in probe error paths
	ARM: OMAP2+: Fix refcount leak in omap_gic_of_init
	ARM: dts: Fix mmc order for omap3-gta04
	mtd: rawnand: Fix return value check of wait_for_completion_timeout
	pinctrl: pistachio: fix use of irq_of_parse_and_map()
	ip_gre: Make o_seqno start from 0 in native mode
	tcp: fix potential xmit stalls caused by TCP_NOTSENT_LOWAT
	bus: sunxi-rsb: Fix the return value of sunxi_rsb_device_create()
	clk: sunxi: sun9i-mmc: check return value after calling platform_get_resource()
	bnx2x: fix napi API usage sequence
	ASoC: wm8731: Disable the regulator when probing fails
	drivers: net: hippi: Fix deadlock in rr_close()
	x86/cpu: Load microcode during restore_processor_state()
	tty: n_gsm: fix wrong signal octet encoding in convergence layer type 2
	tty: n_gsm: fix malformed counter for out of frame data
	tty: n_gsm: fix insufficient txframe size
	tty: n_gsm: fix missing explicit ldisc flush
	tty: n_gsm: fix wrong command retry handling
	tty: n_gsm: fix wrong command frame length field encoding
	tty: n_gsm: fix incorrect UA handling
	MIPS: Fix CP0 counter erratum detection for R4k CPUs
	parisc: Merge model and model name into one line in /proc/cpuinfo
	ALSA: fireworks: fix wrong return count shorter than expected by 4 bytes
	Revert "SUNRPC: attempt AF_LOCAL connect on setup"
	firewire: fix potential uaf in outbound_phy_packet_callback()
	firewire: remove check of list iterator against head past the loop body
	firewire: core: extend card->lock in fw_core_handle_bus_reset
	ASoC: wm8958: Fix change notifications for DSP controls
	can: grcan: grcan_close(): fix deadlock
	can: grcan: use ofdev->dev when allocating DMA memory
	nfc: replace improper check device_is_registered() in netlink related functions
	nfc: nfcmrvl: main: reorder destructive operations in nfcmrvl_nci_unregister_dev to avoid bugs
	NFC: netlink: fix sleep in atomic bug when firmware download timeout
	hwmon: (adt7470) Fix warning on module removal
	ASoC: dmaengine: Restore NULL prepare_slave_config() callback
	net: emaclite: Add error handling for of_address_to_resource()
	smsc911x: allow using IRQ0
	btrfs: always log symlinks in full mode
	net: igmp: respect RCU rules in ip_mc_source() and ip_mc_msfilter()
	kvm: x86/cpuid: Only provide CPUID leaf 0xA if host has architectural PMU
	net: sched: prevent UAF on tc_ctl_tfilter when temporarily dropping rtnl_lock
	net: ipv6: ensure we call ipv6_mc_down() at most once
	dm: fix mempool NULL pointer race when completing IO
	dm: interlock pending dm_io and dm_wait_for_bios_completion
	Linux 4.9.313

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I41ea8ad0456765c772594463a2780545c066bbca
2022-05-12 13:20:48 +02:00
Eric Dumazet
5d31cc5016 tcp: fix potential xmit stalls caused by TCP_NOTSENT_LOWAT
[ Upstream commit 4bfe744ff1644fbc0a991a2677dc874475dd6776 ]

I had this bug sitting for too long in my pile, it is time to fix it.

Thanks to Doug Porter for reminding me of it!

We had various attempts in the past, including commit
0cbe6a8f089e ("tcp: remove SOCK_QUEUE_SHRUNK"),
but the issue is that TCP stack currently only generates
EPOLLOUT from input path, when tp->snd_una has advanced
and skb(s) cleaned from rtx queue.

If a flow has a big RTT, and/or receives SACKs, it is possible
that the notsent part (tp->write_seq - tp->snd_nxt) reaches 0
and no more data can be sent until tp->snd_una finally advances.

What is needed is to also check if POLLOUT needs to be generated
whenever tp->snd_nxt is advanced, from output path.

This bug triggers more often after an idle period, as
we do not receive ACK for at least one RTT. tcp_notsent_lowat
could be a fraction of what CWND and pacing rate would allow to
send during this RTT.

In a followup patch, I will remove the bogus call
to tcp_chrono_stop(sk, TCP_CHRONO_SNDBUF_LIMITED)
from tcp_check_space(). Fact that we have decided to generate
an EPOLLOUT does not mean the application has immediately
refilled the transmit queue. This optimistic call
might have been the reason the bug seemed not too serious.

Tested:

200 ms rtt, 1% packet loss, 32 MB tcp_rmem[2] and tcp_wmem[2]

$ echo 500000 >/proc/sys/net/ipv4/tcp_notsent_lowat
$ cat bench_rr.sh
SUM=0
for i in {1..10}
do
 V=`netperf -H remote_host -l30 -t TCP_RR -- -r 10000000,10000 -o LOCAL_BYTES_SENT | egrep -v "MIGRATED|Bytes"`
 echo $V
 SUM=$(($SUM + $V))
done
echo SUM=$SUM

Before patch:
$ bench_rr.sh
130000000
80000000
140000000
140000000
140000000
140000000
130000000
40000000
90000000
110000000
SUM=1140000000

After patch:
$ bench_rr.sh
430000000
590000000
530000000
450000000
450000000
350000000
450000000
490000000
480000000
460000000
SUM=4680000000  # This is 410 % of the value before patch.

Fixes: c9bee3b7fd ("tcp: TCP_NOTSENT_LOWAT socket option")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Doug Porter <dsp@fb.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-05-12 12:14:55 +02:00
Greg Kroah-Hartman
f5c4d2614c Merge 4.9.311 into android-4.9-q
Changes in 4.9.311
	USB: serial: pl2303: add IBM device IDs
	USB: serial: simple: add Nokia phone driver
	netdevice: add the case if dev is NULL
	virtio_console: break out of buf poll on remove
	ethernet: sun: Free the coherent when failing in probing
	af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register
	block: Add a helper to validate the block size
	virtio-blk: Use blk_validate_block_size() to validate block size
	USB: usb-storage: Fix use of bitfields for hardware data in ene_ub6250.c
	coresight: Fix TRCCONFIGR.QE sysfs interface
	iio: inkern: apply consumer scale on IIO_VAL_INT cases
	iio: inkern: make a best effort on offset calculation
	clk: uniphier: Fix fixed-rate initialization
	ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE
	SUNRPC: avoid race between mod_timer() and del_timer_sync()
	NFSD: prevent underflow in nfssvc_decode_writeargs()
	can: ems_usb: ems_usb_start_xmit(): fix double dev_kfree_skb() in error path
	jffs2: fix use-after-free in jffs2_clear_xattr_subsystem
	jffs2: fix memory leak in jffs2_do_mount_fs
	jffs2: fix memory leak in jffs2_scan_medium
	mm/pages_alloc.c: don't create ZONE_MOVABLE beyond the end of a node
	mempolicy: mbind_range() set_policy() after vma_merge()
	scsi: libsas: Fix sas_ata_qc_issue() handling of NCQ NON DATA commands
	Revert "Input: clear BTN_RIGHT/MIDDLE on buttonpads"
	ALSA: cs4236: fix an incorrect NULL check on list iterator
	drivers: hamradio: 6pack: fix UAF bug caused by mod_timer()
	video: fbdev: sm712fb: Fix crash in smtcfb_read()
	video: fbdev: atari: Atari 2 bpp (STe) palette bugfix
	ARM: dts: exynos: fix UART3 pins configuration in Exynos5250
	ARM: dts: exynos: add missing HDMI supplies on SMDK5250
	ARM: dts: exynos: add missing HDMI supplies on SMDK5420
	carl9170: fix missing bit-wise or operator for tx_params
	thermal: int340x: Increase bitmap size
	lib/raid6/test: fix multiple definition linking error
	DEC: Limit PMAX memory probing to R3k systems
	media: davinci: vpif: fix unbalanced runtime PM get
	brcmfmac: firmware: Allocate space for default boardrev in nvram
	brcmfmac: pcie: Replace brcmf_pcie_copy_mem_todev with memcpy_toio
	PCI: pciehp: Clear cmd_busy bit in polling mode
	crypto: authenc - Fix sleep in atomic context in decrypt_tail
	crypto: mxs-dcp - Fix scatterlist processing
	spi: tegra114: Add missing IRQ check in tegra_spi_probe
	selftests/x86: Add validity check and allow field splitting
	hwmon: (pmbus) Add mutex to regulator ops
	hwmon: (sch56xx-common) Replace WDOG_ACTIVE with WDOG_HW_RUNNING
	PM: hibernate: fix __setup handler error handling
	PM: suspend: fix return value of __setup handler
	crypto: vmx - add missing dependencies
	crypto: ccp - ccp_dmaengine_unregister release dma channels
	hwmon: (pmbus) Add Vin unit off handling
	clocksource: acpi_pm: fix return value of __setup handler
	sched/debug: Remove mpol_get/put and task_lock/unlock from sched_show_numa
	perf/core: Fix address filter parser for multiple filters
	perf/x86/intel/pt: Fix address filter config for 32-bit kernel
	video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()
	video: fbdev: fbcvt.c: fix printing in fb_cvt_print_name()
	ARM: dts: qcom: ipq4019: fix sleep clock
	soc: ti: wkup_m3_ipc: Fix IRQ check in wkup_m3_ipc_probe
	media: usb: go7007: s2250-board: fix leak in probe()
	ASoC: ti: davinci-i2s: Add check for clk_enable()
	ALSA: spi: Add check for clk_enable()
	arm64: dts: ns2: Fix spi-cpol and spi-cpha property
	arm64: dts: broadcom: Fix sata nodename
	printk: fix return value of printk.devkmsg __setup handler
	ASoC: mxs-saif: Handle errors for clk_enable
	ASoC: atmel_ssc_dai: Handle errors for clk_enable
	memory: emif: Add check for setup_interrupts
	memory: emif: check the pointer temp in get_device_details()
	ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction
	ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe
	ASoC: wm8350: Handle error for wm8350_register_irq
	ASoC: fsi: Add check for clk_enable
	video: fbdev: omapfb: Add missing of_node_put() in dvic_probe_of
	ASoC: dmaengine: do not use a NULL prepare_slave_config() callback
	ASoC: mxs: Fix error handling in mxs_sgtl5000_probe
	ASoC: imx-es8328: Fix error return code in imx_es8328_probe()
	mtd: onenand: Check for error irq
	drm/edid: Don't clear formats if using deep color
	ath9k_htc: fix uninit value bugs
	ray_cs: Check ioremap return value
	power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init
	HID: i2c-hid: fix GET/SET_REPORT for unnumbered reports
	iwlwifi: Fix -EIO error code that is never returned
	scsi: pm8001: Fix command initialization in pm80XX_send_read_log()
	scsi: pm8001: Fix command initialization in pm8001_chip_ssp_tm_req()
	scsi: pm8001: Fix payload initialization in pm80xx_set_thermal_config()
	scsi: pm8001: Fix abort all task initialization
	TOMOYO: fix __setup handlers return values
	ext2: correct max file size computing
	drm/tegra: Fix reference leak in tegra_dsi_ganged_probe
	KVM: x86: Fix emulation in writing cr8
	KVM: x86/emulator: Defer not-present segment check in __load_segment_descriptor()
	i2c: xiic: Make bus names unique
	power: supply: wm8350-power: Handle error for wm8350_register_irq
	power: supply: wm8350-power: Add missing free in free_charger_irq
	powerpc/sysdev: fix incorrect use to determine if list is empty
	mfd: mc13xxx: Add check for mc13xxx_irq_request
	MIPS: RB532: fix return value of __setup handler
	USB: storage: ums-realtek: fix error code in rts51x_read_mem()
	af_netlink: Fix shift out of bounds in group mask calculation
	i2c: mux: demux-pinctrl: do not deactivate a master that is not active
	mfd: asic3: Add missing iounmap() on error asic3_mfd_probe
	mxser: fix xmit_buf leak in activate when LSR == 0xff
	pwm: lpc18xx-sct: Initialize driver data and hardware before pwmchip_add()
	iio: adc: Add check for devm_request_threaded_irq
	clk: qcom: clk-rcg2: Update the frac table for pixel clock
	remoteproc: qcom_wcnss: Add missing of_node_put() in wcnss_alloc_memory_region
	clk: loongson1: Terminate clk_div_table with sentinel element
	clk: clps711x: Terminate clk_div_table with sentinel element
	clk: tegra: tegra124-emc: Fix missing put_device() call in emc_ensure_emc_driver
	NFS: remove unneeded check in decode_devicenotify_args()
	pinctrl: mediatek: Fix missing of_node_put() in mtk_pctrl_init
	pinctrl: nomadik: Add missing of_node_put() in nmk_pinctrl_probe
	pinctrl/rockchip: Add missing of_node_put() in rockchip_pinctrl_probe
	tty: hvc: fix return value of __setup handler
	kgdboc: fix return value of __setup handler
	kgdbts: fix return value of __setup handler
	jfs: fix divide error in dbNextAG
	netfilter: nf_conntrack_tcp: preserve liberal flag in tcp options
	net: phy: broadcom: Fix brcm_fet_config_init()
	qlcnic: dcb: default to returning -EOPNOTSUPP
	net/x25: Fix null-ptr-deref caused by x25_disconnect
	selinux: use correct type for context length
	loop: use sysfs_emit() in the sysfs xxx show()
	Fix incorrect type in assignment of ipv6 port for audit
	irqchip/nvic: Release nvic_base upon failure
	ACPICA: Avoid walking the ACPI Namespace if it is not there
	ACPI/APEI: Limit printable size of BERT table data
	PM: core: keep irq flags in device_pm_check_callbacks()
	spi: tegra20: Use of_device_get_match_data()
	ext4: don't BUG if someone dirty pages without asking ext4 first
	ntfs: add sanity check on allocation size
	video: fbdev: nvidiafb: Use strscpy() to prevent buffer overflow
	video: fbdev: w100fb: Reset global state
	video: fbdev: cirrusfb: check pixclock to avoid divide by zero
	video: fbdev: omapfb: acx565akm: replace snprintf with sysfs_emit
	ARM: dts: qcom: fix gic_irq_domain_translate warnings for msm8960
	ARM: dts: bcm2837: Add the missing L1/L2 cache information
	video: fbdev: omapfb: panel-dsi-cm: Use sysfs_emit() instead of snprintf()
	video: fbdev: omapfb: panel-tpo-td043mtea1: Use sysfs_emit() instead of snprintf()
	ASoC: soc-core: skip zero num_dai component in searching dai name
	media: cx88-mpeg: clear interrupt status register before streaming video
	ARM: tegra: tamonten: Fix I2C3 pad setting
	ARM: mmp: Fix failure to remove sram device
	video: fbdev: sm712fb: Fix crash in smtcfb_write()
	media: hdpvr: initialize dev->worker at hdpvr_register_videodev
	mmc: host: Return an error when ->enable_sdio_irq() ops is missing
	scsi: qla2xxx: Fix incorrect reporting of task management failure
	KVM: Prevent module exit until all VMs are freed
	ubifs: Add missing iput if do_tmpfile() failed in rename whiteout
	ubifs: setflags: Make dirtied_ino_d 8 bytes aligned
	gfs2: Make sure FITRIM minlen is rounded up to fs block size
	pinctrl: pinconf-generic: Print arguments for bias-pull-*
	ACPI: CPPC: Avoid out of bounds access when parsing _CPC data
	mm/mmap: return 1 from stack_guard_gap __setup() handler
	mm/memcontrol: return 1 from cgroup.memory __setup() handler
	ubi: fastmap: Return error code if memory allocation fails in add_aeb()
	ASoC: topology: Allow TLV control to be either read or write
	ARM: dts: spear1340: Update serial node properties
	ARM: dts: spear13xx: Update SPI dma properties
	openvswitch: Fixed nd target mask field in the flow dump.
	KVM: x86: Forbid VMM to set SYNIC/STIMER MSRs when SynIC wasn't activated
	rtc: wm8350: Handle error for wm8350_register_irq
	ARM: 9187/1: JIVE: fix return value of __setup handler
	KVM: x86/svm: Clear reserved bits written to PerfEvtSeln MSRs
	ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111
	ptp: replace snprintf with sysfs_emit
	powerpc: dts: t104xrdb: fix phy type for FMAN 4/5
	scsi: mvsas: Replace snprintf() with sysfs_emit()
	scsi: bfa: Replace snprintf() with sysfs_emit()
	iommu/arm-smmu-v3: fix event handling soft lockup
	dm ioctl: prevent potential spectre v1 gadget
	scsi: pm8001: Fix pm8001_mpi_task_abort_resp()
	scsi: aha152x: Fix aha152x_setup() __setup handler return value
	bnxt_en: Eliminate unintended link toggle during FW reset
	MIPS: fix fortify panic when copying asm exception handlers
	scsi: libfc: Fix use after free in fc_exch_abts_resp()
	usb: dwc3: omap: fix "unbalanced disables for smps10_out1" on omap5evm
	xtensa: fix DTC warning unit_address_format
	Bluetooth: Fix use after free in hci_send_acl
	init/main.c: return 1 from handled __setup() functions
	w1: w1_therm: fixes w1_seq for ds28ea00 sensors
	SUNRPC/call_alloc: async tasks mustn't block waiting for memory
	serial: samsung_tty: do not unlock port->lock for uart_write_wakeup()
	virtio_console: eliminate anonymous module_init & module_exit
	jfs: prevent NULL deref in diFree
	mm: fix race between MADV_FREE reclaim and blkdev direct IO read
	scsi: zorro7xx: Fix a resource leak in zorro7xx_remove_one()
	net: stmmac: Fix unset max_speed difference between DT and non-DT platforms
	drm/imx: Fix memory leak in imx_pd_connector_get_modes
	drbd: Fix five use after free bugs in get_initial_state
	mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0)
	mm/mempolicy: fix mpol_new leak in shared_policy_replace
	x86/pm: Save the MSR validity status at context setup
	x86/speculation: Restore speculation related MSRs during S3 resume
	arm64: patch_text: Fixup last cpu should be master
	tools build: Use $(shell ) instead of `` to get embedded libperl's ccopts
	dmaengine: Revert "dmaengine: shdma: Fix runtime PM imbalance on error"
	mm: don't skip swap entry even if zap_details specified
	arm64: module: remove (NOLOAD) from linker script
	xfrm: policy: match with both mark and mask on user interfaces
	veth: Ensure eth header is in skb's linear part
	net: ethernet: stmmac: fix altr_tse_pcs function when using a fixed-link
	nfc: nci: add flush_workqueue to prevent uaf
	cifs: potential buffer overflow in handling symlinks
	drm/amdkfd: Check for potential null return of kmalloc_array()
	scsi: ibmvscsis: Increase INITIAL_SRP_LIMIT to 1024
	net: micrel: fix KS8851_MLL Kconfig
	gpu: ipu-v3: Fix dev_dbg frequency output
	scsi: mvsas: Add PCI ID of RocketRaid 2640
	drivers: net: slip: fix NPD bug in sl_tx_timeout()
	mm, page_alloc: fix build_zonerefs_node()
	mm: kmemleak: take a full lowmem check in kmemleak_*_phys()
	ALSA: pcm: Test for "silence" field in struct "pcm_format_data"
	ARM: davinci: da850-evm: Avoid NULL pointer dereference
	smp: Fix offline cpu check in flush_smp_call_function_queue()
	i2c: pasemi: Wait for write xfers to finish
	gcc-plugins: latent_entropy: use /dev/urandom
	Linux 4.9.311

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia8f55c5ae2f0eb71b0893d8271a10dfd3c78b3b8
2022-04-21 14:01:02 +02:00
Xin Long
2be597a371 xfrm: policy: match with both mark and mask on user interfaces
commit 4f47e8ab6ab796b5380f74866fa5287aca4dcc58 upstream.

In commit ed17b8d377ea ("xfrm: fix a warning in xfrm_policy_insert_list"),
it would take 'priority' to make a policy unique, and allow duplicated
policies with different 'priority' to be added, which is not expected
by userland, as Tobias reported in strongswan.

To fix this duplicated policies issue, and also fix the issue in
commit ed17b8d377ea ("xfrm: fix a warning in xfrm_policy_insert_list"),
when doing add/del/get/update on user interfaces, this patch is to change
to look up a policy with both mark and mask by doing:

  mark.v == pol->mark.v && mark.m == pol->mark.m

and leave the check:

  (mark & pol->mark.m) == pol->mark.v

for tx/rx path only.

As the userland expects an exact mark and mask match to manage policies.

v1->v2:
  - make xfrm_policy_mark_match inline and fix the changelog as
    Tobias suggested.

Fixes: 295fae5688 ("xfrm: Allow user space manipulation of SPD mark")
Fixes: ed17b8d377ea ("xfrm: fix a warning in xfrm_policy_insert_list")
Reported-by: Tobias Brunner <tobias@strongswan.org>
Tested-by: Tobias Brunner <tobias@strongswan.org>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-20 09:06:44 +02:00
Greg Kroah-Hartman
ad8bfa47c3 Merge 4.9.305 into android-4.9-q
Changes in 4.9.305
	mac80211_hwsim: report NOACK frames in tx_status
	mac80211_hwsim: initialize ieee80211_tx_info at hw_scan_work
	i2c: bcm2835: Avoid clock stretching timeouts
	Input: clear BTN_RIGHT/MIDDLE on buttonpads
	cifs: fix double free race when mount fails in cifs_get_root()
	dmaengine: shdma: Fix runtime PM imbalance on error
	i2c: qup: allow COMPILE_TEST
	net: usb: cdc_mbim: avoid altsetting toggling for Telit FN990
	usb: gadget: don't release an existing dev->buf
	usb: gadget: clear related members when goto fail
	ata: pata_hpt37x: fix PCI clock detection
	ASoC: ops: Shift tested values in snd_soc_put_volsw() by +min
	xfrm: fix MTU regression
	netfilter: nf_queue: don't assume sk is full socket
	netfilter: nf_queue: fix possible use-after-free
	net: dcb: flush lingering app table entries for unregistered devices
	firmware: Fix a reference count leak.
	firmware: qemu_fw_cfg: fix kobject leak in probe error path
	mac80211: fix forwarded mesh frames AC & queue selection
	net: stmmac: fix return value of __setup handler
	net: sxgbe: fix return value of __setup handler
	net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()
	efivars: Respect "block" flag in efivar_entry_set_safe()
	can: gs_usb: change active_channels's type from atomic_t to u8
	ARM: 9182/1: mmu: fix returns from early_param() and __setup() functions
	soc: fsl: qe: Check of ioremap return value
	net: chelsio: cxgb3: check the return value of pci_find_capability()
	Input: elan_i2c - move regulator_[en|dis]able() out of elan_[en|dis]able_power()
	Input: elan_i2c - fix regulator enable count imbalance after suspend/resume
	HID: add mapping for KEY_ALL_APPLICATIONS
	memfd: fix F_SEAL_WRITE after shmem huge page allocated
	net: dcb: disable softirqs in dcbnl_flush_dev()
	hamradio: fix macro redefine warning
	Linux 4.9.305

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I153e78dd376b8c593af11ccaf5ea3b6e1b0c070e
2022-03-11 10:05:50 +01:00
Florian Westphal
21b27b2baa netfilter: nf_queue: fix possible use-after-free
commit c3873070247d9e3c7a6b0cf9bf9b45e8018427b1 upstream.

Eric Dumazet says:
  The sock_hold() side seems suspect, because there is no guarantee
  that sk_refcnt is not already 0.

On failure, we cannot queue the packet and need to indicate an
error.  The packet will be dropped by the caller.

v2: split skb prefetch hunk into separate change

Fixes: 271b72c7fa ("udp: RCU handling for Unicast packets.")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-08 19:00:57 +01:00
Greg Kroah-Hartman
5435f4567e Merge 4.9.304 into android-4.9-q
Changes in 4.9.304
	mtd: rawnand: brcmnand: Fixed incorrect sub-page ECC status
	vhost/vsock: don't check owner in vhost_vsock_stop() while releasing
	parisc/unaligned: Fix fldd and fstd unaligned handlers on 32-bit kernel
	parisc/unaligned: Fix ldw() and stw() unalignment handlers
	sr9700: sanity check for packet length
	USB: zaurus: support another broken Zaurus
	serial: 8250: fix error handling in of_platform_serial_probe()
	serial: 8250: of: Fix mapped region size when using reg-offset property
	net: __pskb_pull_tail() & pskb_carve_frag_list() drop_monitor friends
	gso: do not skip outer ip header in case of ipip and net_failover
	openvswitch: Fix setting ipv6 fields causing hw csum failure
	drm/edid: Always set RGB444
	net/mlx5e: Fix wrong return value on ioctl EEPROM query failure
	configfs: fix a race in configfs_{,un}register_subsystem()
	RDMA/ib_srp: Fix a deadlock
	iio: adc: men_z188_adc: Fix a resource leak in an error handling path
	ata: pata_hpt37x: disable primary channel on HPT371
	Revert "USB: serial: ch341: add new Product ID for CH341A"
	usb: gadget: rndis: add spinlock for rndis response list
	USB: gadget: validate endpoint index for xilinx udc
	tracefs: Set the group ownership in apply_options() not parse_options()
	USB: serial: option: add support for DW5829e
	USB: serial: option: add Telit LE910R1 compositions
	usb: dwc3: gadget: Let the interrupt handler disable bottom halves.
	xhci: Prevent futile URB re-submissions due to incorrect return value.
	tty: n_gsm: fix encoding of control signal octet bit DV
	tty: n_gsm: fix proper link termination after failed open
	memblock: use kfree() to release kmalloced memblock regions
	fget: clarify and improve __fget_files() implementation
	Linux 4.9.304

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I2e6047b09e3b477b03005b985987d4bc9fe2d44a
2022-03-02 15:26:26 +01:00
Paul Blakey
952d01d70a openvswitch: Fix setting ipv6 fields causing hw csum failure
commit d9b5ae5c1b241b91480aa30408be12fe91af834a upstream.

Ipv6 ttl, label and tos fields are modified without first
pulling/pushing the ipv6 header, which would have updated
the hw csum (if available). This might cause csum validation
when sending the packet to the stack, as can be seen in
the trace below.

Fix this by updating skb->csum if available.

Trace resulted by ipv6 ttl dec and then sending packet
to conntrack [actions: set(ipv6(hlimit=63)),ct(zone=99)]:
[295241.900063] s_pf0vf2: hw csum failure
[295241.923191] Call Trace:
[295241.925728]  <IRQ>
[295241.927836]  dump_stack+0x5c/0x80
[295241.931240]  __skb_checksum_complete+0xac/0xc0
[295241.935778]  nf_conntrack_tcp_packet+0x398/0xba0 [nf_conntrack]
[295241.953030]  nf_conntrack_in+0x498/0x5e0 [nf_conntrack]
[295241.958344]  __ovs_ct_lookup+0xac/0x860 [openvswitch]
[295241.968532]  ovs_ct_execute+0x4a7/0x7c0 [openvswitch]
[295241.979167]  do_execute_actions+0x54a/0xaa0 [openvswitch]
[295242.001482]  ovs_execute_actions+0x48/0x100 [openvswitch]
[295242.006966]  ovs_dp_process_packet+0x96/0x1d0 [openvswitch]
[295242.012626]  ovs_vport_receive+0x6c/0xc0 [openvswitch]
[295242.028763]  netdev_frame_hook+0xc0/0x180 [openvswitch]
[295242.034074]  __netif_receive_skb_core+0x2ca/0xcb0
[295242.047498]  netif_receive_skb_internal+0x3e/0xc0
[295242.052291]  napi_gro_receive+0xba/0xe0
[295242.056231]  mlx5e_handle_rx_cqe_mpwrq_rep+0x12b/0x250 [mlx5_core]
[295242.062513]  mlx5e_poll_rx_cq+0xa0f/0xa30 [mlx5_core]
[295242.067669]  mlx5e_napi_poll+0xe1/0x6b0 [mlx5_core]
[295242.077958]  net_rx_action+0x149/0x3b0
[295242.086762]  __do_softirq+0xd7/0x2d6
[295242.090427]  irq_exit+0xf7/0x100
[295242.093748]  do_IRQ+0x7f/0xd0
[295242.096806]  common_interrupt+0xf/0xf
[295242.100559]  </IRQ>
[295242.102750] RIP: 0033:0x7f9022e88cbd
[295242.125246] RSP: 002b:00007f9022282b20 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffda
[295242.132900] RAX: 0000000000000005 RBX: 0000000000000010 RCX: 0000000000000000
[295242.140120] RDX: 00007f9022282ba8 RSI: 00007f9022282a30 RDI: 00007f9014005c30
[295242.147337] RBP: 00007f9014014d60 R08: 0000000000000020 R09: 00007f90254a8340
[295242.154557] R10: 00007f9022282a28 R11: 0000000000000246 R12: 0000000000000000
[295242.161775] R13: 00007f902308c000 R14: 000000000000002b R15: 00007f9022b71f40

Fixes: 3fdbd1ce11 ("openvswitch: add ipv6 'set' action")
Signed-off-by: Paul Blakey <paulb@nvidia.com>
Link: https://lore.kernel.org/r/20220223163416.24096-1-paulb@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-02 11:32:02 +01:00
Greg Kroah-Hartman
c5804dccaf Merge 4.9.302 into android-4.9-q
Changes in 4.9.302
	integrity: check the return value of audit_log_start()
	ima: Remove ima_policy file before directory
	NFS: Fix initialisation of nfs_client cl_flags field
	NFSD: Clamp WRITE offsets
	Input: i8042 - Fix misplaced backport of "add ASUS Zenbook Flip to noselftest list"
	serial: sh-sci: Fix misplaced backport of "Fix late enablement of AUTORTS"
	ALSA: line6: Fix misplaced backport of "Fix wrong altsetting for LINE6_PODHD500_1"
	Revert "net: axienet: Wait for PhyRstCmplt after core reset"
	NFSv4 only print the label when its queried
	nfs: nfs4clinet: check the return value of kstrdup()
	NFSv4 remove zero number of fs_locations entries error check
	scsi: target: iscsi: Make sure the np under each tpg is unique
	usb: dwc2: gadget: don't try to disable ep0 in dwc2_hsotg_suspend
	ARM: dts: imx23-evk: Remove MX23_PAD_SSP1_DETECT from hog group
	staging: fbtft: Fix error path in fbtft_driver_module_init()
	ARM: dts: imx6qdl-udoo: Properly describe the SD card detect
	bonding: pair enable_port with slave_arr_updates
	ipmr,ip6mr: acquire RTNL before calling ip[6]mr_free_table() on failure path
	net: do not keep the dst cache when uncloning an skb dst and its metadata
	net: fix a memleak when uncloning an skb dst and its metadata
	tipc: rate limit warning for received illegal binding update
	vt_ioctl: fix array_index_nospec in vt_setactivate
	vt_ioctl: add array_index_nospec to VT_ACTIVATE
	bpf: Add kconfig knob for disabling unpriv bpf by default
	n_tty: wake up poll(POLLRDNORM) on receiving data
	usb: dwc3: gadget: Prevent core from processing stale TRBs
	USB: gadget: validate interface OS descriptor requests
	usb: gadget: rndis: check size of RNDIS_MSG_SET command
	USB: serial: ftdi_sio: add support for Brainboxes US-159/235/320
	USB: serial: option: add ZTE MF286D modem
	USB: serial: ch341: add support for GW Instek USB2.0-Serial devices
	USB: serial: cp210x: add NCR Retail IO box id
	USB: serial: cp210x: add CPI Bulk Coin Recycler id
	hwmon: (dell-smm) Speed up setting of fan speed
	HID: wacom: add USB_HID dependency
	Linux 4.9.302

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5ad6e897d8683da99cddfdca9df1863f389345f2
2022-02-16 13:00:09 +01:00
Antoine Tenart
4ac84498fb net: fix a memleak when uncloning an skb dst and its metadata
[ Upstream commit 9eeabdf17fa0ab75381045c867c370f4cc75a613 ]

When uncloning an skb dst and its associated metadata, a new
dst+metadata is allocated and later replaces the old one in the skb.
This is helpful to have a non-shared dst+metadata attached to a specific
skb.

The issue is the uncloned dst+metadata is initialized with a refcount of
1, which is increased to 2 before attaching it to the skb. When
tun_dst_unclone returns, the dst+metadata is only referenced from a
single place (the skb) while its refcount is 2. Its refcount will never
drop to 0 (when the skb is consumed), leading to a memory leak.

Fix this by removing the call to dst_hold in tun_dst_unclone, as the
dst+metadata refcount is already 1.

Fixes: fc4099f172 ("openvswitch: Fix egress tunnel info.")
Cc: Pravin B Shelar <pshelar@ovn.org>
Reported-by: Vlad Buslov <vladbu@nvidia.com>
Tested-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-02-16 12:43:54 +01:00
Antoine Tenart
cbb43514c8 net: do not keep the dst cache when uncloning an skb dst and its metadata
[ Upstream commit cfc56f85e72f5b9c5c5be26dc2b16518d36a7868 ]

When uncloning an skb dst and its associated metadata a new dst+metadata
is allocated and the tunnel information from the old metadata is copied
over there.

The issue is the tunnel metadata has references to cached dst, which are
copied along the way. When a dst+metadata refcount drops to 0 the
metadata is freed including the cached dst entries. As they are also
referenced in the initial dst+metadata, this ends up in UaFs.

In practice the above did not happen because of another issue, the
dst+metadata was never freed because its refcount never dropped to 0
(this will be fixed in a subsequent patch).

Fix this by initializing the dst cache after copying the tunnel
information from the old metadata to also unshare the dst cache.

Fixes: d71785ffc7 ("net: add dst_cache to ovs vxlan lwtunnel")
Cc: Paolo Abeni <pabeni@redhat.com>
Reported-by: Vlad Buslov <vladbu@nvidia.com>
Tested-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-02-16 12:43:53 +01:00
Greg Kroah-Hartman
5fe377f01c Merge 4.9.300 into android-4.9-q
Changes in 4.9.300
	can: bcm: fix UAF of bcm op
	Bluetooth: refactor malicious adv data check
	s390/hypfs: include z/VM guests with access control group set
	scsi: zfcp: Fix failed recovery on gone remote port with non-NPIV FCP devices
	udf: Restore i_lenAlloc when inode expansion fails
	udf: Fix NULL ptr deref when converting from inline format
	PM: wakeup: simplify the output logic of pm_show_wakelocks()
	serial: stm32: fix software flow control transfer
	tty: n_gsm: fix SW flow control encoding/handling
	tty: Add support for Brainboxes UC cards.
	usb-storage: Add unusual-devs entry for VL817 USB-SATA bridge
	usb: gadget: f_sourcesink: Fix isoc transfer for USB_SPEED_SUPER_PLUS
	USB: core: Fix hang in usb_kill_urb by adding memory barriers
	powerpc/32: Fix boot failure with GCC latent entropy plugin
	scsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put()
	ipv6_tunnel: Rate limit warning messages
	net: fix information leakage in /proc/net/ptype
	ipv4: avoid using shared IP generator for connected sockets
	NFSv4: Handle case where the lookup of a directory fails
	NFSv4: nfs_atomic_open() can race when looking up a non-regular file
	net-procfs: show net devices bound packet types
	drm/msm: Fix wrong size calculation
	hwmon: (lm90) Reduce maximum conversion rate for G781
	ipv4: raw: lock the socket in raw_bind()
	ipv4: tcp: send zero IPID in SYNACK messages
	netfilter: nat: remove l4 protocol port rovers
	netfilter: nat: limit port clash resolution attempts
	ipheth: fix EOVERFLOW in ipheth_rcvbulk_callback
	net: amd-xgbe: ensure to reset the tx_timer_active flag
	net: amd-xgbe: Fix skb data length underflow
	rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()
	af_packet: fix data-race in packet_setsockopt / packet_setsockopt
	ASoC: ops: Reject out of bounds values in snd_soc_put_volsw()
	ASoC: ops: Reject out of bounds values in snd_soc_put_volsw_sx()
	ASoC: ops: Reject out of bounds values in snd_soc_put_xr_sx()
	drm/nouveau: fix off by one in BIOS boundary checking
	iommu/amd: Fix loop timeout issue in iommu_ga_log_enable()
	spi: bcm-qspi: check for valid cs before applying chip select
	spi: mediatek: Avoid NULL pointer crash in interrupt
	net: ieee802154: Return meaningful error codes from the netlink helpers
	net: macsec: Verify that send_sci is on when setting Tx sci explicitly
	ASoC: fsl: Add missing error handling in pcm030_fabric_probe
	scsi: bnx2fc: Make bnx2fc_recv_frame() mp safe
	nfsd: nfsd4_setclientid_confirm mistakenly expires confirmed client.
	rtc: cmos: Evaluate century appropriate
	EDAC/altera: Fix deferred probing
	EDAC/xgene: Fix deferred probing
	ext4: fix error handling in ext4_restore_inline_data()
	Linux 4.9.300

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I91b09ff3b20111994d43f92347b76da206627ca4
2022-02-09 08:12:15 +01:00
Florian Westphal
587ad3aa47 netfilter: nat: remove l4 protocol port rovers
commit 6ed5943f8735e2b778d92ea4d9805c0a1d89bc2b upstream.

This is a leftover from days where single-cpu systems were common:
Store last port used to resolve a clash to use it as a starting point when
the next conflict needs to be resolved.

When we have parallel attempt to connect to same address:port pair,
its likely that both cores end up computing the same "available" port,
as both use same starting port, and newly used ports won't become
visible to other cores until the conntrack gets confirmed later.

One of the cores then has to drop the packet at insertion time because
the chosen new tuple turns out to be in use after all.

Lets simplify this: remove port rover and use a pseudo-random starting
point.

Note that this doesn't make netfilter default to 'fully random' mode;
the 'rover' was only used if NAT could not reuse source port as-is.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 18:15:28 +01:00
Eric Dumazet
2b77927a8c ipv4: avoid using shared IP generator for connected sockets
commit 23f57406b82de51809d5812afd96f210f8b627f3 upstream.

ip_select_ident_segs() has been very conservative about using
the connected socket private generator only for packets with IP_DF
set, claiming it was needed for some VJ compression implementations.

As mentioned in this referenced document, this can be abused.
(Ref: Off-Path TCP Exploits of the Mixed IPID Assignment)

Before switching to pure random IPID generation and possibly hurt
some workloads, lets use the private inet socket generator.

Not only this will remove one vulnerability, this will also
improve performance of TCP flows using pmtudisc==IP_PMTUDISC_DONT

Fixes: 73f156a6e8 ("inetpeer: get rid of ip_id_count")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reported-by: Ray Che <xijiache@gmail.com>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 18:15:27 +01:00
Fernando Gont
47d16afdb1 BACKPORT: ipv6: Implement draft-ietf-6man-rfc4941bis
Implement the upcoming rev of RFC4941 (IPv6 temporary addresses):
https://tools.ietf.org/html/draft-ietf-6man-rfc4941bis-09

* Reduces the default Valid Lifetime to 2 days
  The number of extra addresses employed when Valid Lifetime was
  7 days exacerbated the stress caused on network
  elements/devices. Additionally, the motivation for temporary
  addresses is indeed privacy and reduced exposure. With a
  default Valid Lifetime of 7 days, an address that becomes
  revealed by active communication is reachable and exposed for
  one whole week. The only use case for a Valid Lifetime of 7
  days could be some application that is expecting to have long
  lived connections. But if you want to have a long lived
  connections, you shouldn't be using a temporary address in the
  first place. Additionally, in the era of mobile devices, general
  applications should nevertheless be prepared and robust to
  address changes (e.g. nodes swap wifi <-> 4G, etc.)

* Employs different IIDs for different prefixes
  To avoid network activity correlation among addresses configured
  for different prefixes

* Uses a simpler algorithm for IID generation
  No need to store "history" anywhere

Bug: 175340972
Signed-off-by: Fernando Gont <fgont@si6networks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 969c54646af0d7d94a5f0f37adbbfe024e85466e)
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: Idce8f00b9b29ad329b6b90a5a4a9641c3d2b96d9
2022-01-31 14:39:14 +00:00
Greg Kroah-Hartman
f84049047b Merge 4.9.298 into android-4.9-q
Changes in 4.9.298
	Bluetooth: bfusb: fix division by zero in send path
	USB: core: Fix bug in resuming hub's handling of wakeup requests
	USB: Fix "slab-out-of-bounds Write" bug in usb_hcd_poll_rh_status
	mfd: intel-lpss: Fix too early PM enablement in the ACPI ->probe()
	can: gs_usb: fix use of uninitialized variable, detach device on reception of invalid USB data
	can: gs_usb: gs_can_start_xmit(): zero-initialize hf->{flags,reserved}
	random: fix data race on crng_node_pool
	random: fix data race on crng init time
	staging: wlan-ng: Avoid bitwise vs logical OR warning in hfa384x_usb_throttlefn()
	drm/i915: Avoid bitwise vs logical OR warning in snb_wm_latency_quirk()
	media: uvcvideo: fix division by zero at stream start
	rtlwifi: rtl8192cu: Fix WARNING when calling local_irq_restore() with interrupts enabled
	HID: uhid: Fix worker destroying device without any protection
	HID: wacom: Avoid using stale array indicies to read contact count
	nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind()
	rtc: cmos: take rtc_lock while reading from CMOS
	media: flexcop-usb: fix control-message timeouts
	media: mceusb: fix control-message timeouts
	media: em28xx: fix control-message timeouts
	media: cpia2: fix control-message timeouts
	media: s2255: fix control-message timeouts
	media: dib0700: fix undefined behavior in tuner shutdown
	media: redrat3: fix control-message timeouts
	media: pvrusb2: fix control-message timeouts
	media: stk1160: fix control-message timeouts
	can: softing_cs: softingcs_probe(): fix memleak on registration failure
	PCI: Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller
	shmem: fix a race between shmem_unused_huge_shrink and shmem_evict_inode
	Bluetooth: cmtp: fix possible panic when cmtp_init_sockets() fails
	wcn36xx: Indicate beacon not connection loss on MISSED_BEACON_IND
	Bluetooth: stop proccessing malicious adv data
	media: dmxdev: fix UAF when dvb_register_device() fails
	crypto: qce - fix uaf on qce_ahash_register_one
	tty: serial: atmel: Check return code of dmaengine_submit()
	tty: serial: atmel: Call dma_async_issue_pending()
	netfilter: bridge: add support for pppoe filtering
	arm64: dts: qcom: msm8916: fix MMC controller aliases
	drm/amdgpu: Fix a NULL pointer dereference in amdgpu_connector_lcd_native_mode()
	drm/radeon/radeon_kms: Fix a NULL pointer dereference in radeon_driver_open_kms()
	serial: amba-pl011: do not request memory region twice
	floppy: Fix hang in watchdog when disk is ejected
	media: dib8000: Fix a memleak in dib8000_init()
	media: saa7146: mxb: Fix a NULL pointer dereference in mxb_attach()
	media: si2157: Fix "warm" tuner state detection
	media: msi001: fix possible null-ptr-deref in msi001_probe()
	usb: ftdi-elan: fix memory leak on device disconnect
	pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in __nonstatic_find_io_region()
	pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in nonstatic_find_mem_region()
	ppp: ensure minimum packet size in ppp_write()
	fsl/fman: Check for null pointer after calling devm_ioremap
	spi: spi-meson-spifc: Add missing pm_runtime_disable() in meson_spifc_probe
	can: softing: softing_startstop(): fix set but not used variable warning
	can: xilinx_can: xcan_probe(): check for error irq
	pcmcia: fix setting of kthread task states
	net: mcs7830: handle usb read errors properly
	ext4: avoid trim error on fs with small groups
	ALSA: jack: Add missing rwsem around snd_ctl_remove() calls
	ALSA: PCM: Add missing rwsem around snd_ctl_remove() calls
	ALSA: hda: Add missing rwsem around snd_ctl_remove() calls
	RDMA/hns: Validate the pkey index
	powerpc/prom_init: Fix improper check of prom_getprop()
	ALSA: oss: fix compile error when OSS_DEBUG is enabled
	char/mwave: Adjust io port register size
	scsi: ufs: Fix race conditions related to driver data
	RDMA/core: Let ib_find_gid() continue search even after empty entry
	dmaengine: pxa/mmp: stop referencing config->slave_id
	ASoC: samsung: idma: Check of ioremap return value
	misc: lattice-ecp3-config: Fix task hung when firmware load failed
	mips: lantiq: add support for clk_set_parent()
	mips: bcm63xx: add support for clk_set_parent()
	RDMA/cxgb4: Set queue pair state when being queried
	Bluetooth: Fix debugfs entry leak in hci_register_dev()
	fs: dlm: filter user dlm messages for kernel locks
	ar5523: Fix null-ptr-deref with unexpected WDCMSG_TARGET_START reply
	usb: gadget: f_fs: Use stream_open() for endpoint files
	HID: apple: Do not reset quirks when the Fn key is not found
	media: b2c2: Add missing check in flexcop_pci_isr:
	gpiolib: acpi: Do not set the IRQ type if the IRQ is already in use
	HSI: core: Fix return freed object in hsi_new_client
	mwifiex: Fix skb_over_panic in mwifiex_usb_recv()
	floppy: Add max size check for user space request
	media: saa7146: hexium_orion: Fix a NULL pointer dereference in hexium_attach()
	media: m920x: don't use stack on USB reads
	iwlwifi: mvm: synchronize with FW after multicast commands
	ath10k: Fix tx hanging
	net: bonding: debug: avoid printing debug logs when bond is not notifying peers
	media: igorplugusb: receiver overflow should be reported
	media: saa7146: hexium_gemini: Fix a NULL pointer dereference in hexium_attach()
	usb: hub: Add delay for SuperSpeed hub resume to let links transit to U0
	ath9k: Fix out-of-bound memcpy in ath9k_hif_usb_rx_stream
	um: registers: Rename function names to avoid conflicts and build problems
	jffs2: GC deadlock reading a page that is used in jffs2_write_begin()
	ACPICA: Utilities: Avoid deleting the same object twice in a row
	ACPICA: Executer: Fix the REFCLASS_REFOF case in acpi_ex_opcode_1A_0T_1R()
	btrfs: remove BUG_ON() in find_parent_nodes()
	btrfs: remove BUG_ON(!eie) in find_parent_nodes
	net: mdio: Demote probed message to debug print
	dm btree: add a defensive bounds check to insert_at()
	dm space map common: add bounds check to sm_ll_lookup_bitmap()
	serial: pl010: Drop CR register reset on set_termios
	serial: core: Keep mctrl register state and cached copy in sync
	parisc: Avoid calling faulthandler_disabled() twice
	powerpc/6xx: add missing of_node_put
	powerpc/powernv: add missing of_node_put
	powerpc/cell: add missing of_node_put
	powerpc/btext: add missing of_node_put
	i2c: i801: Don't silently correct invalid transfer size
	powerpc/smp: Move setup_profiling_timer() under CONFIG_PROFILING
	i2c: mpc: Correct I2C reset procedure
	w1: Misuse of get_user()/put_user() reported by sparse
	ALSA: seq: Set upper limit of processed events
	i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters
	MIPS: Octeon: Fix build errors using clang
	scsi: sr: Don't use GFP_DMA
	ASoC: mediatek: mt8173: fix device_node leak
	power: bq25890: Enable continuous conversion for ADC at charging
	ubifs: Error path in ubifs_remount_rw() seems to wrongly free write buffers
	iwlwifi: mvm: Increase the scan timeout guard to 30 seconds
	ext4: set csum seed in tmp inode while migrating to extents
	ext4: Fix BUG_ON in ext4_bread when write quota data
	ext4: don't use the orphan list when migrating an inode
	fuse: fix bad inode
	fuse: fix live lock in fuse_iget()
	drm/radeon: fix error handling in radeon_driver_open_kms
	RDMA/hns: Modify the mapping attribute of doorbell to device
	RDMA/rxe: Fix a typo in opcode name
	powerpc/fsl/dts: Enable WA for erratum A-009885 on fman3l MDIO buses
	net/fsl: xgmac_mdio: Fix incorrect iounmap when removing module
	parisc: pdc_stable: Fix memory leak in pdcs_register_pathentries
	af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress
	net: axienet: Wait for PhyRstCmplt after core reset
	net: axienet: fix number of TX ring slots for available check
	netns: add schedule point in ops_exit_list()
	libcxgb: Don't accidentally set RTO_ONLINK in cxgb_find_route()
	dmaengine: at_xdmac: Don't start transactions at tx_submit level
	dmaengine: at_xdmac: Print debug message after realeasing the lock
	dmaengine: at_xdmac: Fix lld view setting
	dmaengine: at_xdmac: Fix at_xdmac_lld struct definition
	net_sched: restore "mpu xxx" handling
	bcmgenet: add WOL IRQ check
	scripts/dtc: dtx_diff: remove broken example from help text
	lib82596: Fix IRQ check in sni_82596_probe
	Revert "gup: document and work around "COW can break either way" issue"
	gup: document and work around "COW can break either way" issue
	drm/ttm/nouveau: don't call tt destroy callback on alloc failure.
	gianfar: simplify FCS handling and fix memory leak
	gianfar: fix jumbo packets+napi+rx overrun crash
	cipso,calipso: resolve a number of problems with the DOI refcounts
	rbtree: cache leftmost node internally
	lib/timerqueue: Rely on rbtree semantics for next timer
	mm: add follow_pte_pmd()
	KVM: do not assume PTE is writable after follow_pfn
	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
	Linux 4.9.298

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ifcea82a702a0906d9090c89785363c2d5423f652
2022-01-27 09:06:53 +01:00
Kevin Bracey
019f0458c5 net_sched: restore "mpu xxx" handling
commit fb80445c438c78b40b547d12b8d56596ce4ccfeb upstream.

commit 56b765b79e ("htb: improved accuracy at high rates") broke
"overhead X", "linklayer atm" and "mpu X" attributes.

"overhead X" and "linklayer atm" have already been fixed. This restores
the "mpu X" handling, as might be used by DOCSIS or Ethernet shaping:

    tc class add ... htb rate X overhead 4 mpu 64

The code being fixed is used by htb, tbf and act_police. Cake has its
own mpu handling. qdisc_calculate_pkt_len still uses the size table
containing values adjusted for mpu by user space.

iproute2 tc has always passed mpu into the kernel via a tc_ratespec
structure, but the kernel never directly acted on it, merely stored it
so that it could be read back by `tc class show`.

Rather, tc would generate length-to-time tables that included the mpu
(and linklayer) in their construction, and the kernel used those tables.

Since v3.7, the tables were no longer used. Along with "mpu", this also
broke "overhead" and "linklayer" which were fixed in 01cb71d2d4
("net_sched: restore "overhead xxx" handling", v3.10) and 8a8e3d84b1
("net_sched: restore "linklayer atm" handling", v3.11).

"overhead" was fixed by simply restoring use of tc_ratespec::overhead -
this had originally been used by the kernel but was initially omitted
from the new non-table-based calculations.

"linklayer" had been handled in the table like "mpu", but the mode was
not originally passed in tc_ratespec. The new implementation was made to
handle it by getting new versions of tc to pass the mode in an extended
tc_ratespec, and for older versions of tc the table contents were analysed
at load time to deduce linklayer.

As "mpu" has always been given to the kernel in tc_ratespec,
accompanying the mpu-based table, we can restore system functionality
with no userspace change by making the kernel act on the tc_ratespec
value.

Fixes: 56b765b79e ("htb: improved accuracy at high rates")
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: Vimalkumar <j.vimal@gmail.com>
Link: https://lore.kernel.org/r/20220112170210.1014351-1-kevin@bracey.fi
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-27 08:47:42 +01:00
Greg Kroah-Hartman
0b84e6eefd Merge 4.9.292 into android-4.9-q
Changes in 4.9.292
	staging: ion: Prevent incorrect reference counting behavour
	USB: serial: option: add Telit LE910S1 0x9200 composition
	USB: serial: option: add Fibocom FM101-GL variants
	usb: hub: Fix usb enumeration issue due to address0 race
	usb: hub: Fix locking issues with address0_mutex
	binder: fix test regression due to sender_euid change
	ALSA: ctxfi: Fix out-of-range access
	staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()
	fuse: fix page stealing
	xen: don't continue xenstore initialization in case of errors
	xen: detect uninitialized xenbus in xenbus_init
	tracing: Fix pid filtering when triggers are attached
	ARM: dts: BCM5301X: Add interrupt properties to GPIO node
	ASoC: topology: Add missing rwsem around snd_ctl_remove() calls
	net: ieee802154: handle iftypes as u32
	NFSv42: Don't fail clone() unless the OP_CLONE operation failed
	ARM: socfpga: Fix crash with CONFIG_FORTIRY_SOURCE
	scsi: mpt3sas: Fix kernel panic during drive powercycle test
	drm/vc4: fix error code in vc4_create_object()
	PM: hibernate: use correct mode for swsusp_close()
	tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows
	tracing: Check pid filtering when creating events
	hugetlbfs: flush TLBs correctly after huge_pmd_unshare
	vhost/vsock: fix incorrect used length reported to the guest
	proc/vmcore: fix clearing user buffer by properly using clear_user()
	NFC: add NCI_UNREG flag to eliminate the race
	fuse: release pipe buf after last use
	xen: sync include/xen/interface/io/ring.h with Xen's newest version
	xen/blkfront: read response from backend only once
	xen/blkfront: don't take local copy of a request from the ring page
	xen/blkfront: don't trust the backend response data blindly
	xen/netfront: read response from backend only once
	xen/netfront: don't read data from request on the ring page
	xen/netfront: disentangle tx_skb_freelist
	xen/netfront: don't trust the backend response data blindly
	tty: hvc: replace BUG_ON() with negative return value
	shm: extend forced shm destroy to support objects from several IPC nses
	NFSv42: Fix pagecache invalidation after COPY/CLONE
	hugetlb: take PMD sharing into account when flushing tlb/caches
	net: return correct error code
	platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep
	s390/setup: avoid using memblock_enforce_memory_limit
	thermal: core: Reset previous low and high trip during thermal zone init
	scsi: iscsi: Unblock session then wake up error handler
	ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()
	net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound
	net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock()
	vrf: Reset IPCB/IP6CB when processing outbound pkts in vrf dev xmit
	kprobes: Limit max data_size of the kretprobe instances
	sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl
	sata_fsl: fix warning in remove_proc_entry when rmmod sata_fsl
	fs: add fget_many() and fput_many()
	fget: check that the fd still exists after getting a ref to it
	natsemi: xtensa: fix section mismatch warnings
	net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()
	siphash: use _unaligned version by default
	net/rds: correct socket tunable error in rds_tcp_tune()
	parisc: Fix "make install" on newer debian releases
	vgacon: Propagate console boot parameters before calling `vc_resize'
	tty: serial: msm_serial: Deactivate RX DMA for polling support
	serial: pl011: Add ACPI SBSA UART match id
	serial: core: fix transmit-buffer reset and memleak
	Linux 4.9.292

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I98a677406cfca6a63fffa4a94e45edbd45fd671a
2021-12-08 09:05:25 +01:00
Lin Ma
57c076e64a NFC: add NCI_UNREG flag to eliminate the race
commit 48b71a9e66c2eab60564b1b1c85f4928ed04e406 upstream.

There are two sites that calls queue_work() after the
destroy_workqueue() and lead to possible UAF.

The first site is nci_send_cmd(), which can happen after the
nci_close_device as below

nfcmrvl_nci_unregister_dev   |  nfc_genl_dev_up
  nci_close_device           |
    flush_workqueue          |
    del_timer_sync           |
  nci_unregister_device      |    nfc_get_device
    destroy_workqueue        |    nfc_dev_up
    nfc_unregister_device    |      nci_dev_up
      device_del             |        nci_open_device
                             |          __nci_request
                             |            nci_send_cmd
                             |              queue_work !!!

Another site is nci_cmd_timer, awaked by the nci_cmd_work from the
nci_send_cmd.

  ...                        |  ...
  nci_unregister_device      |  queue_work
    destroy_workqueue        |
    nfc_unregister_device    |  ...
      device_del             |  nci_cmd_work
                             |  mod_timer
                             |  ...
                             |  nci_cmd_timer
                             |    queue_work !!!

For the above two UAF, the root cause is that the nfc_dev_up can race
between the nci_unregister_device routine. Therefore, this patch
introduce NCI_UNREG flag to easily eliminate the possible race. In
addition, the mutex_lock in nci_close_device can act as a barrier.

Signed-off-by: Lin Ma <linma@zju.edu.cn>
Fixes: 6a2968aaf5 ("NFC: basic NCI protocol implementation")
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211116152732.19238-1-linma@zju.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-08 08:45:04 +01:00
Alexander Aring
3ada7ad7fb net: ieee802154: handle iftypes as u32
[ Upstream commit 451dc48c806a7ce9fbec5e7a24ccf4b2c936e834 ]

This patch fixes an issue that an u32 netlink value is handled as a
signed enum value which doesn't fit into the range of u32 netlink type.
If it's handled as -1 value some BIT() evaluation ends in a
shift-out-of-bounds issue. To solve the issue we set the to u32 max which
is s32 "-1" value to keep backwards compatibility and let the followed enum
values start counting at 0. This brings the compiler to never handle the
enum as signed and a check if the value is above NL802154_IFTYPE_MAX should
filter -1 out.

Fixes: f3ea5e4423 ("ieee802154: add new interface command")
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20211112030916.685793-1-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-12-08 08:45:03 +01:00
Greg Kroah-Hartman
58fa83d959 Merge 4.9.291 into android-4.9-q
Changes in 4.9.291
	binder: use euid from cred instead of using task
	binder: use cred instead of task for selinux checks
	xhci: Fix USB 3.1 enumeration issues by increasing roothub power-on-good delay
	Input: elantench - fix misreporting trackpoint coordinates
	Input: i8042 - Add quirk for Fujitsu Lifebook T725
	libata: fix read log timeout value
	ocfs2: fix data corruption on truncate
	mmc: dw_mmc: Dont wait for DRTO on Write RSP error
	parisc: Fix ptrace check on syscall return
	media: ite-cir: IR receiver stop working after receive overflow
	ALSA: ua101: fix division by zero at probe
	ALSA: 6fire: fix control and bulk message timeouts
	ALSA: line6: fix control and interrupt message timeouts
	ALSA: synth: missing check for possible NULL after the call to kstrdup
	ALSA: timer: Fix use-after-free problem
	ALSA: timer: Unconditionally unlink slave instances, too
	x86/irq: Ensure PI wakeup handler is unregistered before module unload
	sfc: Don't use netif_info before net_device setup
	hyperv/vmbus: include linux/bitops.h
	mmc: winbond: don't build on M68K
	bpf: Prevent increasing bpf_jit_limit above max
	xen/netfront: stop tx queues during live migration
	spi: spl022: fix Microwire full duplex mode
	watchdog: Fix OMAP watchdog early handling
	vmxnet3: do not stop tx queues after netif_device_detach()
	btrfs: fix lost error handling when replaying directory deletes
	hwmon: (pmbus/lm25066) Add offset coefficients
	regulator: s5m8767: do not use reset value as DVS voltage if GPIO DVS is disabled
	regulator: dt-bindings: samsung,s5m8767: correct s5m8767,pmic-buck-default-dvs-idx property
	EDAC/sb_edac: Fix top-of-high-memory value for Broadwell/Haswell
	mwifiex: fix division by zero in fw download path
	ath6kl: fix division by zero in send path
	ath6kl: fix control-message timeout
	PCI: Mark Atheros QCA6174 to avoid bus reset
	rtl8187: fix control-message timeouts
	evm: mark evm_fixmode as __ro_after_init
	wcn36xx: Fix HT40 capability for 2Ghz band
	mwifiex: Read a PCI register after writing the TX ring write pointer
	wcn36xx: handle connection loss indication
	RDMA/qedr: Fix NULL deref for query_qp on the GSI QP
	signal: Remove the bogus sigkill_pending in ptrace_stop
	signal/mips: Update (_save|_restore)_fp_context to fail with -EFAULT
	power: supply: max17042_battery: Prevent int underflow in set_soc_threshold
	power: supply: max17042_battery: use VFSOC for capacity when no rsns
	powerpc/85xx: Fix oops when mpc85xx_smp_guts_ids node cannot be found
	serial: core: Fix initializing and restoring termios speed
	ALSA: mixer: oss: Fix racy access to slots
	ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume
	PCI: aardvark: Read all 16-bits from PCIE_MSI_PAYLOAD_REG
	quota: check block number when reading the block in quota file
	quota: correct error number in free_dqentry()
	iio: dac: ad5446: Fix ad5622_write() return value
	USB: serial: keyspan: fix memleak on probe errors
	USB: iowarrior: fix control-message timeouts
	Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg()
	Bluetooth: fix use-after-free error in lock_sock_nested()
	platform/x86: wmi: do not fail if disabling fails
	MIPS: lantiq: dma: add small delay after reset
	MIPS: lantiq: dma: reset correct number of channel
	locking/lockdep: Avoid RCU-induced noinstr fail
	smackfs: Fix use-after-free in netlbl_catmap_walk()
	x86: Increase exception stack sizes
	media: mt9p031: Fix corrupted frame after restarting stream
	media: netup_unidvb: handle interrupt properly according to the firmware
	media: uvcvideo: Set capability in s_param
	media: s5p-mfc: fix possible null-pointer dereference in s5p_mfc_probe()
	media: mceusb: return without resubmitting URB in case of -EPROTO error.
	ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK
	ACPICA: Avoid evaluating methods too early during system resume
	media: usb: dvd-usb: fix uninit-value bug in dibusb_read_eeprom_byte()
	tracefs: Have tracefs directories not set OTH permission bits by default
	ath: dfs_pattern_detector: Fix possible null-pointer dereference in channel_detector_create()
	ACPI: battery: Accept charges over the design capacity as full
	memstick: r592: Fix a UAF bug when removing the driver
	lib/xz: Avoid overlapping memcpy() with invalid input with in-place decompression
	lib/xz: Validate the value before assigning it to an enum variable
	tracing/cfi: Fix cmp_entries_* functions signature mismatch
	mwl8k: Fix use-after-free in mwl8k_fw_state_machine()
	PM: hibernate: Get block device exclusively in swsusp_check()
	iwlwifi: mvm: disable RX-diversity in powersave
	smackfs: use __GFP_NOFAIL for smk_cipso_doi()
	ARM: clang: Do not rely on lr register for stacktrace
	ARM: 9136/1: ARMv7-M uses BE-8, not BE-32
	spi: bcm-qspi: Fix missing clk_disable_unprepare() on error in bcm_qspi_probe()
	parisc: fix warning in flush_tlb_all
	parisc/kgdb: add kgdb_roundup() to make kgdb work with idle polling
	cgroup: Make rebind_subsystems() disable v2 controllers all at once
	media: dvb-usb: fix ununit-value in az6027_rc_query
	media: mtk-vpu: Fix a resource leak in the error handling path of 'mtk_vpu_probe()'
	media: si470x: Avoid card name truncation
	cpuidle: Fix kobject memory leaks in error paths
	ath9k: Fix potential interrupt storm on queue reset
	crypto: qat - detect PFVF collision after ACK
	crypto: qat - disregard spurious PFVF interrupts
	b43legacy: fix a lower bounds test
	b43: fix a lower bounds test
	memstick: avoid out-of-range warning
	memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host()
	hwmon: Fix possible memleak in __hwmon_device_register()
	ath10k: fix max antenna gain unit
	drm/msm: uninitialized variable in msm_gem_import()
	net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
	mmc: mxs-mmc: disable regulator on error and in the remove function
	platform/x86: thinkpad_acpi: Fix bitwise vs. logical warning
	mwifiex: Send DELBA requests according to spec
	phy: micrel: ksz8041nl: do not use power down mode
	smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi
	s390/gmap: don't unconditionally call pte_unmap_unlock() in __gmap_zap()
	irq: mips: avoid nested irq_enter()
	samples/kretprobes: Fix return value if register_kretprobe() failed
	libertas_tf: Fix possible memory leak in probe and disconnect
	libertas: Fix possible memory leak in probe and disconnect
	crypto: pcrypt - Delay write to padata->info
	RDMA/rxe: Fix wrong port_cap_flags
	ARM: s3c: irq-s3c24xx: Fix return value check for s3c24xx_init_intc()
	scsi: dc395: Fix error case unwinding
	MIPS: loongson64: make CPU_LOONGSON64 depends on MIPS_FP_SUPPORT
	JFS: fix memleak in jfs_mount
	arm: dts: omap3-gta04a4: accelerometer irq fix
	soc/tegra: Fix an error handling path in tegra_powergate_power_up()
	memory: fsl_ifc: fix leak of irq and nand_irq in fsl_ifc_ctrl_probe
	video: fbdev: chipsfb: use memset_io() instead of memset()
	serial: 8250_dw: Drop wrong use of ACPI_PTR()
	usb: gadget: hid: fix error code in do_config()
	power: supply: rt5033_battery: Change voltage values to µV
	scsi: csiostor: Uninitialized data in csio_ln_vnp_read_cbfn()
	RDMA/mlx4: Return missed an error if device doesn't support steering
	serial: xilinx_uartps: Fix race condition causing stuck TX
	power: supply: bq27xxx: Fix kernel crash on IRQ handler register error
	pnfs/flexfiles: Fix misplaced barrier in nfs4_ff_layout_prepare_ds
	drm/plane-helper: fix uninitialized variable reference
	PCI: aardvark: Don't spam about PIO Response Status
	fs: orangefs: fix error return code of orangefs_revalidate_lookup()
	mtd: spi-nor: hisi-sfc: Remove excessive clk_disable_unprepare()
	dmaengine: at_xdmac: fix AT_XDMAC_CC_PERID() macro
	auxdisplay: img-ascii-lcd: Fix lock-up when displaying empty string
	netfilter: nfnetlink_queue: fix OOB when mac header was cleared
	dmaengine: dmaengine_desc_callback_valid(): Check for `callback_result`
	m68k: set a default value for MEMORY_RESERVE
	watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT
	scsi: qla2xxx: Turn off target reset during issue_lip
	i2c: xlr: Fix a resource leak in the error handling path of 'xlr_i2c_probe()'
	xen-pciback: Fix return in pm_ctrl_init()
	net: davinci_emac: Fix interrupt pacing disable
	ACPI: PMIC: Fix intel_pmic_regs_handler() read accesses
	bonding: Fix a use-after-free problem when bond_sysfs_slave_add() failed
	mm/zsmalloc.c: close race window between zs_pool_dec_isolated() and zs_unregister_migration()
	llc: fix out-of-bound array index in llc_sk_dev_hash()
	nfc: pn533: Fix double free when pn533_fill_fragment_skbs() fails
	vsock: prevent unnecessary refcnt inc for nonblocking connect
	USB: chipidea: fix interrupt deadlock
	ARM: 9156/1: drop cc-option fallbacks for architecture selection
	powerpc/bpf: Validate branch ranges
	powerpc/bpf: Fix BPF_SUB when imm == 0x80000000
	mm, oom: pagefault_out_of_memory: don't force global OOM for dying tasks
	mm, oom: do not trigger out_of_memory from the #PF
	PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros
	net: mdio-mux: fix unbalanced put_device
	parisc/entry: fix trace test in syscall exit path
	PCI/MSI: Destroy sysfs before freeing entries
	scsi: lpfc: Fix list_add() corruption in lpfc_drain_txq()
	usb: musb: tusb6010: check return value after calling platform_get_resource()
	scsi: advansys: Fix kernel pointer leak
	ARM: dts: omap: fix gpmc,mux-add-data type
	usb: host: ohci-tmio: check return value after calling platform_get_resource()
	tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc
	MIPS: sni: Fix the build
	scsi: target: Fix ordered tag handling
	scsi: target: Fix alua_tg_pt_gps_count tracking
	powerpc/5200: dts: fix memory node unit name
	ALSA: gus: fix null pointer dereference on pointer block
	powerpc/dcr: Use cmplwi instead of 3-argument cmpli
	sh: check return code of request_irq
	maple: fix wrong return value of maple_bus_init().
	sh: fix kconfig unmet dependency warning for FRAME_POINTER
	sh: define __BIG_ENDIAN for math-emu
	mips: BCM63XX: ensure that CPU_SUPPORTS_32BIT_KERNEL is set
	sched/core: Mitigate race cpus_share_cache()/update_top_cache_domain()
	net: bnx2x: fix variable dereferenced before check
	iavf: Fix for the false positive ASQ/ARQ errors while issuing VF reset
	mips: bcm63xx: add support for clk_get_parent()
	platform/x86: hp_accel: Fix an error handling path in 'lis3lv02d_probe()'
	NFC: reorganize the functions in nci_request
	NFC: reorder the logic in nfc_{un,}register_device
	perf/x86/intel/uncore: Fix filter_tid mask for CHA events on Skylake Server
	perf/x86/intel/uncore: Fix IIO event constraints for Skylake Server
	tun: fix bonding active backup with arp monitoring
	hexagon: export raw I/O routines for modules
	mm: kmemleak: slob: respect SLAB_NOLEAKTRACE flag
	btrfs: fix memory ordering between normal and ordered work functions
	parisc/sticon: fix reverse colors
	cfg80211: call cfg80211_stop_ap when switch from P2P_GO type
	drm/udl: fix control-message timeout
	drm/amdgpu: fix set scaling mode Full/Full aspect/Center not works on vga and dvi connectors
	batman-adv: Keep fragments equally sized
	batman-adv: Fix own OGM check in aggregated OGMs
	batman-adv: mcast: fix duplicate mcast packets in BLA backbone from LAN
	batman-adv: mcast: fix duplicate mcast packets from BLA backbone to mesh
	batman-adv: Consider fragmentation for needed_headroom
	batman-adv: Reserve needed_*room for fragments
	batman-adv: Don't always reallocate the fragmentation skb head
	ASoC: DAPM: Cover regression by kctl change notification fix
	usb: max-3421: Use driver data instead of maintaining a list of bound devices
	soc/tegra: pmc: Fix imbalanced clock disabling in error code path
	Linux 4.9.291

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I23d798c10aebab1e51add60ccb34a8b289d49a4d
2021-11-26 12:41:38 +01:00
Eric Dumazet
df69e763d1 llc: fix out-of-bound array index in llc_sk_dev_hash()
[ Upstream commit 8ac9dfd58b138f7e82098a4e0a0d46858b12215b ]

Both ifindex and LLC_SK_DEV_HASH_ENTRIES are signed.

This means that (ifindex % LLC_SK_DEV_HASH_ENTRIES) is negative
if @ifindex is negative.

We could simply make LLC_SK_DEV_HASH_ENTRIES unsigned.

In this patch I chose to use hash_32() to get more entropy
from @ifindex, like llc_sk_laddr_hashfn().

UBSAN: array-index-out-of-bounds in ./include/net/llc.h:75:26
index -43 is out of range for type 'hlist_head [64]'
CPU: 1 PID: 20999 Comm: syz-executor.3 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 ubsan_epilogue+0xb/0x5a lib/ubsan.c:151
 __ubsan_handle_out_of_bounds.cold+0x62/0x6c lib/ubsan.c:291
 llc_sk_dev_hash include/net/llc.h:75 [inline]
 llc_sap_add_socket+0x49c/0x520 net/llc/llc_conn.c:697
 llc_ui_bind+0x680/0xd70 net/llc/af_llc.c:404
 __sys_bind+0x1e9/0x250 net/socket.c:1693
 __do_sys_bind net/socket.c:1704 [inline]
 __se_sys_bind net/socket.c:1702 [inline]
 __x64_sys_bind+0x6f/0xb0 net/socket.c:1702
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fa503407ae9

Fixes: 6d2e3ea284 ("llc: use a device based hash table to speed up multicast delivery")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-26 11:48:39 +01:00
Greg Kroah-Hartman
0b0decfabd Merge 4.9.286 into android-4.9-q
Changes in 4.9.286
	af_unix: fix races in sk_peer_pid and sk_peer_cred accesses
	net: mdio: introduce a shutdown method to mdio device drivers
	xen-netback: correct success/error reporting for the SKB-with-fraglist case
	sparc64: fix pci_iounmap() when CONFIG_PCI is not set
	ext2: fix sleeping in atomic bugs on error
	scsi: sd: Free scsi_disk device via put_device()
	usb: testusb: Fix for showing the connection speed
	libata: Add ATA_HORKAGE_NO_NCQ_ON_ATI for Samsung 860 and 870 SSD.
	Linux 4.9.286

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I6096fff7354038a49ebcb7b8cfd9fdfc5fa388a0
2021-10-09 13:45:14 +02:00
Eric Dumazet
09818f629b af_unix: fix races in sk_peer_pid and sk_peer_cred accesses
commit 35306eb23814444bd4021f8a1c3047d3cb0c8b2b upstream.

Jann Horn reported that SO_PEERCRED and SO_PEERGROUPS implementations
are racy, as af_unix can concurrently change sk_peer_pid and sk_peer_cred.

In order to fix this issue, this patch adds a new spinlock that needs
to be used whenever these fields are read or written.

Jann also pointed out that l2cap_sock_get_peer_pid_cb() is currently
reading sk->sk_peer_pid which makes no sense, as this field
is only possibly set by AF_UNIX sockets.
We will have to clean this in a separate patch.
This could be done by reverting b48596d1dc25 "Bluetooth: L2CAP: Add get_peer_pid callback"
or implementing what was truly expected.

Fixes: 109f6e39fa ("af_unix: Allow SO_PEERCRED to work across namespaces.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jann Horn <jannh@google.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
[backport note: 4.4 and 4.9 don't have SO_PEERGROUPS, only SO_PEERCRED]
[backport note: got rid of sk_get_peer_cred(), no users in 4.4/4.9]
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-09 13:25:58 +02:00
Greg Kroah-Hartman
459b0aa6f6 Merge 4.9.284 into android-4.9-q
Changes in 4.9.284
	s390/bpf: Fix optimizing out zero-extensions
	PM / wakeirq: Fix unbalanced IRQ enable for wakeirq
	crypto: talitos - fix max key size for sha384 and sha512
	staging: android: ion: fix page is NULL
	sctp: validate chunk size in __rcv_asconf_lookup
	sctp: add param size validation for SCTP_PARAM_SET_PRIMARY
	dmaengine: acpi: Avoid comparison GSI with Linux vIRQ
	thermal/drivers/exynos: Fix an error code in exynos_tmu_probe()
	9p/trans_virtio: Remove sysfs file on probe failure
	prctl: allow to setup brk for et_dyn executables
	profiling: fix shift-out-of-bounds bugs
	pwm: lpc32xx: Don't modify HW state in .probe() after the PWM chip was registered
	parisc: Move pci_dev_is_behind_card_dino to where it is used
	dmaengine: ioat: depends on !UML
	dmaengine: xilinx_dma: Set DMA mask for coherent APIs
	ceph: lockdep annotations for try_nonblocking_invalidate
	nilfs2: fix memory leak in nilfs_sysfs_create_device_group
	nilfs2: fix NULL pointer in nilfs_##name##_attr_release
	nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group
	nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group
	nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group
	nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group
	blk-throttle: fix UAF by deleteing timer in blk_throtl_exit()
	drm/nouveau/nvkm: Replace -ENOSYS with -ENODEV
	sctp: validate from_addr_param return
	Linux 4.9.284

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id6d0efbc796644d7619dfae7306362cc4a14b0c4
2021-09-26 13:55:03 +02:00
Marcelo Ricardo Leitner
92e7bca984 sctp: validate from_addr_param return
commit 0c5dc070ff3d6246d22ddd931f23a6266249e3db upstream.

Ilja reported that, simply putting it, nothing was validating that
from_addr_param functions were operating on initialized memory. That is,
the parameter itself was being validated by sctp_walk_params, but it
doesn't check for types and their specific sizes and it could be a 0-length
one, causing from_addr_param to potentially work over the next parameter or
even uninitialized memory.

The fix here is to, in all calls to from_addr_param, check if enough space
is there for the wanted IP address type.

Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-09-26 13:36:19 +02:00
Greg Kroah-Hartman
86cb772013 Merge 4.9.280 into android-4.9-q
Changes in 4.9.280
	ALSA: seq: Fix racy deletion of subscriber
	scsi: sr: Return correct event when media event code is 3
	media: videobuf2-core: dequeue if start_streaming fails
	net: natsemi: Fix missing pci_disable_device() in probe and remove
	mips: Fix non-POSIX regexp
	bnx2x: fix an error code in bnx2x_nic_load()
	net: pegasus: fix uninit-value in get_interrupt_interval
	net: fec: fix use-after-free in fec_drv_remove
	net: vxge: fix use-after-free in vxge_device_unregister
	Bluetooth: defer cleanup of resources in hci_unregister_dev()
	USB: usbtmc: Fix RCU stall warning
	USB: serial: option: add Telit FD980 composition 0x1056
	USB: serial: ch341: fix character loss at high transfer rates
	USB: serial: ftdi_sio: add device ID for Auto-M3 OP-COM v2
	usb: otg-fsm: Fix hrtimer list corruption
	scripts/tracing: fix the bug that can't parse raw_trace_func
	media: rtl28xxu: fix zero-length control request
	pipe: increase minimum default pipe size to 2 pages
	serial: 8250: Mask out floating 16/32-bit bus bits
	MIPS: Malta: Do not byte-swap accesses to the CBUS UART
	pcmcia: i82092: fix a null pointer dereference bug
	perf/x86/amd: Don't touch the AMD64_EVENTSEL_HOSTONLY bit inside the guest
	reiserfs: add check for root_inode in reiserfs_fill_super
	reiserfs: check directory items on read from disk
	alpha: Send stop IPI to send to online CPUs
	net/qla3xxx: fix schedule while atomic in ql_wait_for_drvr_lock and ql_adapter_reset
	USB:ehci:fix Kunpeng920 ehci hardware problem
	ppp: Fix generating ppp unit id when ifname is not specified
	net: xilinx_emaclite: Do not print real IOMEM pointer
	ovl: prevent private clone if bind mount is not allowed
	Linux 4.9.280

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I9ec4951d64f625a7bd15aec0fae6c294e3ec0897
2021-08-15 13:09:22 +02:00
Tetsuo Handa
0e77f979a9 Bluetooth: defer cleanup of resources in hci_unregister_dev()
[ Upstream commit e04480920d1eec9c061841399aa6f35b6f987d8b ]

syzbot is hitting might_sleep() warning at hci_sock_dev_event() due to
calling lock_sock() with rw spinlock held [1].

It seems that history of this locking problem is a trial and error.

Commit b40df5743e ("[PATCH] bluetooth: fix socket locking in
hci_sock_dev_event()") in 2.6.21-rc4 changed bh_lock_sock() to
lock_sock() as an attempt to fix lockdep warning.

Then, commit 4ce61d1c7a ("[BLUETOOTH]: Fix locking in
hci_sock_dev_event().") in 2.6.22-rc2 changed lock_sock() to
local_bh_disable() + bh_lock_sock_nested() as an attempt to fix the
sleep in atomic context warning.

Then, commit 4b5dd696f8 ("Bluetooth: Remove local_bh_disable() from
hci_sock.c") in 3.3-rc1 removed local_bh_disable().

Then, commit e305509e678b ("Bluetooth: use correct lock to prevent UAF
of hdev object") in 5.13-rc5 again changed bh_lock_sock_nested() to
lock_sock() as an attempt to fix CVE-2021-3573.

This difficulty comes from current implementation that
hci_sock_dev_event(HCI_DEV_UNREG) is responsible for dropping all
references from sockets because hci_unregister_dev() immediately
reclaims resources as soon as returning from
hci_sock_dev_event(HCI_DEV_UNREG).

But the history suggests that hci_sock_dev_event(HCI_DEV_UNREG) was not
doing what it should do.

Therefore, instead of trying to detach sockets from device, let's accept
not detaching sockets from device at hci_sock_dev_event(HCI_DEV_UNREG),
by moving actual cleanup of resources from hci_unregister_dev() to
hci_cleanup_dev() which is called by bt_host_release() when all
references to this unregistered device (which is a kobject) are gone.

Since hci_sock_dev_event(HCI_DEV_UNREG) no longer resets
hci_pi(sk)->hdev, we need to check whether this device was unregistered
and return an error based on HCI_UNREGISTER flag.  There might be subtle
behavioral difference in "monitor the hdev" functionality; please report
if you found something went wrong due to this patch.

Link: https://syzkaller.appspot.com/bug?extid=a5df189917e79d5e59c9 [1]
Reported-by: syzbot <syzbot+a5df189917e79d5e59c9@syzkaller.appspotmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: e305509e678b ("Bluetooth: use correct lock to prevent UAF of hdev object")
Acked-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-08-15 13:01:02 +02:00
Greg Kroah-Hartman
0bbfd56f73 Merge 4.9.278 into android-4.9-q
Changes in 4.9.278
	iommu/amd: Fix backport of 140456f994195b568ecd7fc2287a34eadffef3ca
	tipc: Fix backport of b77413446408fdd256599daf00d5be72b5f3e7c6
	net: split out functions related to registering inflight socket files
	af_unix: fix garbage collect vs MSG_PEEK
	workqueue: fix UAF in pwq_unbound_release_workfn()
	net/802/mrp: fix memleak in mrp_request_join()
	net/802/garp: fix memleak in garp_request_join()
	sctp: move 198 addresses from unusable to private scope
	hfs: add missing clean-up in hfs_fill_super
	hfs: fix high memory mapping in hfs_bnode_read
	hfs: add lock nesting notation to hfs_find_init
	ARM: dts: versatile: Fix up interrupt controller node names
	lib/string.c: add multibyte memset functions
	ARM: ensure the signal page contains defined contents
	x86/kvm: fix vcpu-id indexed array sizes
	ocfs2: fix zero out valid data
	ocfs2: issue zeroout to EOF blocks
	can: usb_8dev: fix memory leak
	can: ems_usb: fix memory leak
	can: esd_usb2: fix memory leak
	NIU: fix incorrect error return, missed in previous revert
	nfc: nfcsim: fix use after free during module unload
	x86/asm: Ensure asm/proto.h can be included stand-alone
	cfg80211: Fix possible memory leak in function cfg80211_bss_update
	netfilter: conntrack: adjust stop timestamp to real expiry value
	netfilter: nft_nat: allow to specify layer 4 protocol NAT only
	tipc: fix sleeping in tipc accept routine
	mlx4: Fix missing error code in mlx4_load_one()
	net: llc: fix skb_over_panic
	net/mlx5: Fix flow table chaining
	tulip: windbond-840: Fix missing pci_disable_device() in probe and remove
	sis900: Fix missing pci_disable_device() in probe and remove
	Linux 4.9.278

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib4a913f4321ead750bc71245e283aae9cb02681b
2021-08-04 12:49:31 +02:00
Pavel Skripkin
52350dddfd net: llc: fix skb_over_panic
[ Upstream commit c7c9d2102c9c098916ab9e0ab248006107d00d6c ]

Syzbot reported skb_over_panic() in llc_pdu_init_as_xid_cmd(). The
problem was in wrong LCC header manipulations.

Syzbot's reproducer tries to send XID packet. llc_ui_sendmsg() is
doing following steps:

	1. skb allocation with size = len + header size
		len is passed from userpace and header size
		is 3 since addr->sllc_xid is set.

	2. skb_reserve() for header_len = 3
	3. filling all other space with memcpy_from_msg()

Ok, at this moment we have fully loaded skb, only headers needs to be
filled.

Then code comes to llc_sap_action_send_xid_c(). This function pushes 3
bytes for LLC PDU header and initializes it. Then comes
llc_pdu_init_as_xid_cmd(). It initalizes next 3 bytes *AFTER* LLC PDU
header and call skb_push(skb, 3). This looks wrong for 2 reasons:

	1. Bytes rigth after LLC header are user data, so this function
	   was overwriting payload.

	2. skb_push(skb, 3) call can cause skb_over_panic() since
	   all free space was filled in llc_ui_sendmsg(). (This can
	   happen is user passed 686 len: 686 + 14 (eth header) + 3 (LLC
	   header) = 703. SKB_DATA_ALIGN(703) = 704)

So, in this patch I added 2 new private constansts: LLC_PDU_TYPE_U_XID
and LLC_PDU_LEN_U_XID. LLC_PDU_LEN_U_XID is used to correctly reserve
header size to handle LLC + XID case. LLC_PDU_TYPE_U_XID is used by
llc_pdu_header_init() function to push 6 bytes instead of 3. And finally
I removed skb_push() call from llc_pdu_init_as_xid_cmd().

This changes should not affect other parts of LLC, since after
all steps we just transmit buffer.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reported-and-tested-by: syzbot+5e5a981ad7cc54c4b2b4@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-08-04 11:58:03 +02:00