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ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report
authorPawel Harlozinski <pawel.harlozinski@linux.intel.com>
Tue, 12 Nov 2019 13:02:36 +0000 (14:02 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 17 Dec 2019 18:56:14 +0000 (19:56 +0100)
commit9ae0611f0c55178aea77f39ee07d539556d7c6eb
treebe5b1a4351a5a2f47ad5a8314ca3d3a5601d981ctree | snapshot
parent560025a0b565b6ae2d98ff10d2030eeb798e9fb7commit | diff
ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report

commit 8f157d4ff039e03e2ed4cb602eeed2fd4687a58f upstream.

Check for existance of jack before tracing.
NULL pointer dereference has been reported by KASAN while unloading
machine driver (snd_soc_cnl_rt274).

Signed-off-by: Pawel Harlozinski <pawel.harlozinski@linux.intel.com>
Link: https://lore.kernel.org/r/20191112130237.10141-1-pawel.harlozinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
sound/soc/soc-jack.c diff | blob | history
Domain: System / Kernel;