Zqiang
1b8490d6b8
kthread_worker: prevent queuing delayed work from timer_fn when it is being canceled ...
commit 6993d0fdbee0eb38bfac350aa016f65ad11ed3b1 upstream.
There is a small race window when a delayed work is being canceled and
the work still might be queued from the timer_fn:
CPU0 CPU1
kthread_cancel_delayed_work_sync()
__kthread_cancel_work_sync()
__kthread_cancel_work()
work->canceling++;
kthread_delayed_work_timer_fn()
kthread_insert_work();
BUG: kthread_insert_work() should not get called when work->canceling is
set.
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20201014083030.16895-1-qiang.zhang@windriver.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-10 12:37:27 +01:00
bpf: Permit map_ptr arithmetic with opcode add and offset 0
2020-11-05 11:43:17 +01:00
cgroup: fix cgroup_sk_alloc() for sk_clone_lock()
2020-07-22 09:32:49 +02:00
kgdb: Make "kgdbcon" work properly with "kgdb_earlycon"
2020-11-05 11:43:16 +01:00
dma-direct: fix data truncation in dma_direct_get_required_mask()
2020-04-29 16:33:00 +02:00
perf: Fix task_function_call() error handling
2020-10-14 10:33:05 +02:00
gcov: add support for GCC 10.1
2020-09-17 13:47:56 +02:00
genirq/matrix: Deal with the sillyness of for_each_cpu() on UP
2020-09-03 11:27:06 +02:00
locking/lockdep: Decrement IRQ context counters when removing lock chain
2020-10-01 13:17:33 +02:00
PM: hibernate: remove the bogus call to get_gendisk() in software_resume()
2020-10-29 09:58:04 +01:00
printk: handle blank console arguments passed in.
2020-10-01 13:18:04 +02:00
rcu: Allow only one expedited GP to run concurrently with wakeups
2020-03-05 16:43:50 +01:00
sched/features: Fix !CONFIG_JUMP_LABEL case
2020-10-29 09:58:00 +01:00
timekeeping: Prevent 32bit truncation in scale64_check_overflow()
2020-10-01 13:17:38 +02:00
ring-buffer: Return 0 on success from ring_buffer_resize()
2020-11-05 11:43:35 +01:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
audit: CONFIG_CHANGE don't log internal bookkeeping as an event
2020-10-01 13:17:32 +02:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
sched/core: Fix illegal RCU from offline CPUs
2020-06-22 09:31:01 +02:00
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-06-22 09:31:22 +02:00
keys: Fix request_key() cache
2020-01-17 19:48:42 +01:00
kernel/elfcore.c: include proper prototypes
2019-09-25 17:51:39 -07:00
exit: Move preemption fixup up, move blocking operations down
2020-06-22 09:31:01 +02:00
mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary
2020-10-29 09:57:45 +01:00
Revert "libata, freezer: avoid block device removal while system is frozen"
2019-10-06 09:11:37 -06:00
futex: Fix incorrect should_fail_futex() handling
2020-11-05 11:43:13 +01:00
kbuild: add variables for compression tools
2020-09-03 11:27:10 +02:00
kallsyms: Refactor kallsyms_show_value() to take cred
2020-07-16 08:16:44 +02:00
kernel/kcmp.c: Use new infrastructure to fix deadlocks in execve
2020-10-01 13:17:48 +02:00
kexec: bail out upon SIGKILL when allocating memory.
2019-09-25 17:51:40 -07:00
kexec_elf: support 32 bit ELF files
2019-09-06 23:58:44 +02:00
Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-09-28 08:14:15 -07:00
kmod: make request_module() return an error when autoloading is disabled
2020-04-17 10:50:22 +02:00
kprobes: Fix compiler warning for !CONFIG_KPROBES_ON_FTRACE
2020-10-01 13:18:25 +02:00
kthread_worker: prevent queuing delayed work from timer_fn when it is being canceled
2020-11-10 12:37:27 +01:00
kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec()
2020-10-01 13:17:10 +02:00
module: statically initialize init section freeing data
2020-10-29 09:57:55 +01:00
kernel/notifier.c: intercept duplicate registrations to avoid infinite loops
2020-10-01 13:17:23 +02:00
padata: add separate cpuhp node for CPUHP_PADATA_DEAD
2020-06-17 16:40:22 +02:00
panic: ensure preemption is disabled during panic()
2019-10-07 15:47:19 -07:00
ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()
2020-01-23 08:22:36 +01:00
kernel/relay.c: fix memleak on destroy relay channel
2020-08-26 10:40:51 +02:00
/dev/mem: Revoke mappings when a driver claims the region
2020-06-24 17:50:35 +02:00
seccomp: Make duplicate listener detection non-racy
2020-11-05 11:43:23 +01:00
ptrace: fix task_join_group_stop() for the case when current is traced
2020-11-10 12:37:24 +01:00
stacktrace: Don't skip first entry on noncurrent tasks
2019-11-04 21:19:25 +01:00
stop_machine: Avoid potential race behaviour
2019-10-17 12:47:12 +02:00
kernel/sys.c: avoid copying possible padding bytes in copy_to_user
2020-10-01 13:17:23 +02:00
kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec()
2020-10-01 13:17:10 +02:00
kernel: sysctl: make drop_caches write-only
2020-01-04 19:18:32 +01:00
taskstats: fix data-race
2020-01-09 10:19:54 +01:00
usermodehelper: reset umask to default before executing user process
2020-10-14 10:32:58 +02:00
watchdog/softlockup: Enforce that timestamp is valid on boot
2020-02-24 08:36:52 +01:00
workqueue: Remove the warning in wq_worker_sleeping()
2020-10-01 13:17:54 +02:00
1b8490d6b8