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| author | Tejun Heo <tj@kernel.org> | 2017-03-06 15:33:42 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-16 10:33:52 +0100 |
| commit | d9d47a6d6862df5536837b43407d3b527cad5090 (patch) | |
| tree | 3a572348350c5aa66ad6e028aa89da9403c04325 /kernel/irq_work.c | |
| parent | 14a7aa2ae61e815c1bf5a1a6f5ae751e1a0a1cbc (diff) | |
workqueue: trigger WARN if queue_delayed_work() is called with NULL @wq
[ Upstream commit 637fdbae60d6cb9f6e963c1079d7e0445c86ff7d ]
If queue_delayed_work() gets called with NULL @wq, the kernel will
oops asynchronuosly on timer expiration which isn't too helpful in
tracking down the offender. This actually happened with smc.
__queue_delayed_work() already does several input sanity checks
synchronously. Add NULL @wq check.
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Link: http://lkml.kernel.org/r/20170227171439.jshx3qplflyrgcv7@codemonkey.org.uk
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/irq_work.c')
0 files changed, 0 insertions, 0 deletions