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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)
committerBen Hutchings <ben@decadent.org.uk>
Tue, 11 Feb 2020 20:03:38 +0000 (20:03 +0000)
commitfcc4ea89f22ec73f79796effb3ac038056eae5f6
tree68c9ae25bded42d618a0aa8e632a38ed97dc05c3tree
parent675ed04ec6599b0ad1233111cd1ec1f10432565ccommit | 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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
sound/soc/soc-jack.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git