Mathieu Desnoyers c496fdc3c6 futex: Fix futex_waitv() hrtimer debug object leak on kcalloc error ...

commit 94cd8fa09f upstream.

In a scenario where kcalloc() fails to allocate memory, the futex_waitv
system call immediately returns -ENOMEM without invoking
destroy_hrtimer_on_stack(). When CONFIG_DEBUG_OBJECTS_TIMERS=y, this
results in leaking a timer debug object.

Fixes: bf69bad38c ("futex: Implement sys_futex_waitv()")
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Cc: stable@vger.kernel.org
Cc: stable@vger.kernel.org # v5.16+
Link: https://lore.kernel.org/r/20221214222008.200393-1-mathieu.desnoyers@efficios.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-01-04 11:26:28 +01:00

..

core.c

futex: Resend potentially swallowed owner death notification

2022-12-31 13:25:45 +01:00

futex.h

futex: add missing rtmutex.h include

2022-04-07 15:09:12 +02:00

Makefile

futex: Split out wait/wake

2021-10-07 13:51:11 +02:00

pi.c

futex: Remove a PREEMPT_RT_FULL reference.

2022-05-13 12:36:51 +02:00

requeue.c

futex: Split out requeue

2021-10-07 13:51:10 +02:00

syscalls.c

futex: Fix futex_waitv() hrtimer debug object leak on kcalloc error

2023-01-04 11:26:28 +01:00

waitwake.c

futex: Implement sys_futex_waitv()

2021-10-07 13:51:11 +02:00