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Suren Baghdasaryan fe25fc5375 ANDROID: Make file-backed vma teardown synchronous 
When a file-backed vma is being released, the userspace can have an
expectation that the vma and the file it's pinning will be released
synchronously. This does not happen when SPF is enabled because vma
and associated file are released asynchronously after RCU grace
period. This is done to prevent pagefault handler from stepping on
a deleted object. Fix this issue by synchronously waiting for RCU
grace period during file-backed vma tear-down.

Fixes: 48e35d053f "FROMLIST: mm: rcu safe vma->vm_file freeing"
Bug: 231394031
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I9f672d5bd947763c7d180a8c1b1f964600d407f3
2022-05-11 17:08:16 +00:00
..
bpf
Merge 5.15.33 into android13-5.15
2022-04-20 08:18:54 +02:00
cgroup
FROMLIST: mm: multi-gen LRU: kill switch
2022-04-20 17:38:56 +00:00
configs
drivers/char: remove /dev/kmem for good
2021-05-07 00:26:34 -07:00
debug
kdb: Fix the putarea helper function
2022-04-08 14:23:51 +02:00
dma
BACKPORT: dma-mapping: remove bogus test for pfn_valid from dma_map_resource
2022-05-04 13:39:14 -07:00
entry
signal: Replace force_fatal_sig with force_exit_sig when in doubt
2021-11-25 09:49:07 +01:00
events
Merge 5.15.34 into android13-5.15
2022-04-24 16:57:32 +02:00
gcov
Kconfig: Introduce ARCH_WANTS_NO_INSTR and CC_HAS_NO_PROFILE_FN_ATTR
2021-06-22 11:07:18 -07:00
irq
ANDROID: genirq: Allow an interrupt to be marked as 'raw'
2022-05-09 22:34:00 +00:00
kcsan
Merge tag 'locking-debug-2021-09-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2021-09-02 13:00:15 -07:00
livepatch
livepatch: Fix build failure on 32 bits processors
2022-04-08 14:23:29 +02:00
locking
Merge 5.15.33 into android13-5.15
2022-04-20 08:18:54 +02:00
power
Merge 5.15.33 into android13-5.15
2022-04-20 08:18:54 +02:00
printk
UPSTREAM: printk: ringbuffer: Improve prb_next_seq() performance
2022-05-10 23:41:39 +00:00
rcu
Merge 5.15.33 into android13-5.15
2022-04-20 08:18:54 +02:00
sched
ANDROID: sched: Add flags parameter to enq/deq after tracehooks
2022-05-04 13:39:14 -07:00
time
Merge 5.15.35 into android13-5.15
2022-04-24 16:58:59 +02:00
trace
Merge 5.15.33 into android13-5.15
2022-04-20 08:18:54 +02:00
.gitignore
ANDROID: add gki_module headers to .gitignore file
2022-04-27 15:34:29 +00:00
acct.c
kernel/acct.c: use dedicated helper to access rlimit values
2021-09-08 11:50:26 -07:00
async.c
Revert "module, async: async_synchronize_full() on module init iff async is used"
2022-02-23 12:03:07 +01:00
audit_fsnotify.c
…
audit_tree.c
audit: move put_tree() to avoid trim_trees refcount underflow and UAF
2021-08-24 18:52:36 -04:00
audit_watch.c
…
audit.c
audit: improve audit queue handling when "audit=1" on cmdline
2022-02-08 18:34:03 +01:00
audit.h
audit: log AUDIT_TIME_* records only from rules
2022-04-08 14:23:06 +02:00
auditfilter.c
lsm: separate security_task_getsecid() into subjective and objective variants
2021-03-22 15:23:32 -04:00
auditsc.c
audit: log AUDIT_TIME_* records only from rules
2022-04-08 14:23:06 +02:00
backtracetest.c
…
bounds.c
FROMLIST: mm: multi-gen LRU: minimal implementation
2022-04-20 17:38:55 +00:00
capability.c
…
cfi.c
cfi: Use rcu_read_{un}lock_sched_notrace
2021-08-11 13:11:12 -07:00
compat.c
arch: remove compat_alloc_user_space
2021-09-08 15:32:35 -07:00
configs.c
…
context_tracking.c
…
cpu_pm.c
PM: cpu: Make notifier chain use a raw_spinlock_t
2021-08-16 18:55:32 +02:00
cpu.c
Merge 5.15.35 into android13-5.15
2022-04-24 16:58:59 +02:00
crash_core.c
kernel/crash_core: suppress unknown crashkernel parameter warning
2021-12-29 12:28:49 +01:00
crash_dump.c
…
cred.c
Merge 5.15.25 into android13-5.15
2022-02-23 12:30:26 +01:00
delayacct.c
delayacct: Add sysctl to enable at runtime
2021-05-12 11:43:25 +02:00
dma.c
…
exec_domain.c
…
exit.c
FROMLIST: mm: multi-gen LRU: support page table walks
2022-04-20 17:38:55 +00:00
extable.c
…
fail_function.c
…
fork.c
ANDROID: Make file-backed vma teardown synchronous
2022-05-11 17:08:16 +00:00
freezer.c
FROMLIST: sched: Defer wakeup in ttwu() for unschedulable frozen tasks
2022-02-10 09:29:57 +00:00
futex.c
Merge tag 'v5.15-rc1' into android-mainline
2021-09-16 09:51:19 +02:00
gen_kheaders.sh
kbuild: clean up ${quiet} checks in shell scripts
2021-05-27 04:01:50 +09:00
gki_module.c
ANDROID: GKI: Add module load time protected symbol lookup
2022-01-05 18:38:02 +00:00
groups.c
…
hung_task.c
FROMLIST: freezer: Add frozen_or_skipped() helper function
2022-02-10 09:29:34 +00:00
iomem.c
…
irq_work.c
Merge 8ecfa36cd4 ("Merge tag 'riscv-for-linus-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux") into android-mainline
2021-06-13 15:19:53 +02:00
jump_label.c
jump_label: Fix jump_label_text_reserved() vs __init
2021-07-05 10:46:20 +02:00
kallsyms.c
module: add printk formats to add module build ID to stacktraces
2021-07-08 11:48:22 -07:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
locking/rwlock: Provide RT variant
2021-08-17 17:50:51 +02:00
Kconfig.preempt
sched/core: Disable CONFIG_SCHED_CORE by default
2021-06-28 22:43:05 +02:00
kcov.c
…
kexec_core.c
Merge branch 'rework/printk_safe-removal' into for-linus
2021-08-30 16:36:10 +02:00
kexec_elf.c
…
kexec_file.c
kernel: kexec_file: fix error return code of kexec_calculate_store_digests()
2021-05-07 00:26:32 -07:00
kexec_internal.h
…
kexec.c
kexec: avoid compat_alloc_user_space
2021-09-08 15:32:34 -07:00
kheaders.c
…
kmod.c
modules: add CONFIG_MODPROBE_PATH
2021-05-07 00:26:33 -07:00
kprobes.c
kprobes: Limit max data_size of the kretprobe instances
2021-12-08 09:04:41 +01:00
ksysfs.c
…
kthread.c
Merge commit c288d9cd71 ("Merge tag 'for-5.14/io_uring-2021-06-30' of git://git.kernel.dk/linux-block") into android-mainline
2021-07-12 10:02:27 +01:00
latencytop.c
…
Makefile
Merge 5.15.34 into android13-5.15
2022-04-24 16:57:32 +02:00
module_signature.c
…
module_signing.c
…
module-internal.h
ANDROID: GKI: Add module load time protected symbol lookup
2022-01-05 18:38:02 +00:00
module.c
Merge 5.15.25 into android13-5.15
2022-02-23 12:30:26 +01:00
notifier.c
notifier: Remove atomic_notifier_call_chain_robust()
2021-08-16 18:55:32 +02:00
nsproxy.c
memcg: enable accounting for new namesapces and struct nsproxy
2021-09-03 09:58:12 -07:00
padata.c
padata: Remove repeated verbose license text
2021-08-27 16:30:18 +08:00
panic.c
Merge branch 'rework/printk_safe-removal' into for-linus
2021-08-30 16:36:10 +02:00
params.c
params: lift param_set_uint_minmax to common code
2021-08-16 14:42:22 +02:00
pid_namespace.c
memcg: enable accounting for new namesapces and struct nsproxy
2021-09-03 09:58:12 -07:00
pid.c
Merge 4520dcbe0d ("Merge tag 'for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply") into android-mainline
2021-09-02 09:42:36 +02:00
profile.c
profiling: fix shift-out-of-bounds bugs
2021-09-08 11:50:26 -07:00
ptrace.c
ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE
2022-04-08 14:22:50 +02:00
range.c
…
reboot.c
ANDROID: reboot: Export reboot_mode
2021-09-28 08:49:54 -07:00
regset.c
…
relay.c
…
resource_kunit.c
…
resource.c
kernel/resource: fix kfree() of bootmem memory again
2022-04-08 14:23:43 +02:00
rseq.c
rseq: Remove broken uapi field layout on 32-bit little endian
2022-04-08 14:23:10 +02:00
scftorture.c
scftorture: Avoid NULL pointer exception on early exit
2021-07-27 11:39:30 -07:00
scs.c
FROMLIST: kasan, scs: support tagged vmalloc mappings
2022-03-21 15:31:19 +00:00
seccomp.c
seccomp: Invalidate seccomp mode to catch death failures
2022-02-16 12:56:38 +01:00
signal.c
signal: In get_signal test for signal_group_exit every time through the loop
2022-03-08 19:12:34 +01:00
smp.c
smp: Fix offline cpu check in flush_smp_call_function_queue()
2022-04-20 09:34:21 +02:00
smpboot.c
smpboot: Replace deprecated CPU-hotplug functions.
2021-08-10 14:57:42 +02:00
smpboot.h
…
softirq.c
ANDROID: softirq: Export irq_handler_exit tracepoint
2021-11-11 18:55:19 +00:00
stackleak.c
gcc-plugins/stackleak: Use noinstr in favor of notrace
2022-02-23 12:03:07 +01:00
stacktrace.c
Merge 5.15.34 into android13-5.15
2022-04-24 16:57:32 +02:00
static_call_inline.c
static_call: Don't make __static_call_return0 static
2022-04-13 20:59:28 +02:00
static_call.c
static_call: Don't make __static_call_return0 static
2022-04-13 20:59:28 +02:00
stop_machine.c
ANDROID: sched: allow access to critical common code for CPU Pause
2021-11-09 00:42:10 +00:00
sys_ni.c
compat: remove some compat entry points
2021-09-08 15:32:35 -07:00
sys.c
UPSTREAM: mm: refactor vm_area_struct::anon_vma_name usage code
2022-03-24 18:44:39 -07:00
sysctl-test.c
kernel/sysctl-test: Remove some casts which are no-longer required
2021-06-23 16:41:24 -06:00
sysctl.c
Merge 5.15.28 into android13-5.15
2022-03-18 07:53:14 +01:00
task_work.c
kasan: record task_work_add() call stack
2021-04-30 11:20:42 -07:00
taskstats.c
…
test_kprobes.c
…
torture.c
torture: Replace deprecated CPU-hotplug functions.
2021-08-10 10:48:07 -07:00
tracepoint.c
Merge 996fe06160 ("Merge tag 'kgdb-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux") into android-mainline
2021-09-14 16:16:54 +02:00
tsacct.c
taskstats: Cleanup the use of task->exit_code
2022-01-27 11:05:35 +01:00
ucount.c
ucounts: Handle wrapping in is_ucounts_overlimit
2022-02-23 12:03:20 +01:00
uid16.c
…
uid16.h
…
umh.c
kernel/umh.c: fix some spelling mistakes
2021-05-07 00:26:34 -07:00
up.c
Merge tag 'locking-urgent-2021-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2021-05-09 13:07:03 -07:00
user_namespace.c
ucounts: Fix systemd LimitNPROC with private users regression
2022-03-08 19:12:42 +01:00
user-return-notifier.c
…
user.c
fs/epoll: use a per-cpu counter for user's watches count
2021-09-08 11:50:27 -07:00
usermode_driver.c
Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-07-03 11:41:14 -07:00
utsname_sysctl.c
…
utsname.c
…
watch_queue.c
watch_queue: Free the page array when watch_queue is dismantled
2022-04-08 14:24:11 +02:00
watchdog_hld.c
…
watchdog.c
ANDROID: softlockup: add vendor hook for a softlockup task
2022-03-15 11:18:09 +09:00
workqueue_internal.h
workqueue: Assign a color to barrier work items
2021-08-17 07:49:10 -10:00
workqueue.c
UPSTREAM: workqueue, kasan: avoid alloc_pages() when recording stack
2022-02-14 15:50:54 +01:00