The patch
ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.4
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 8f157d4ff039e03e2ed4cb602eeed2fd4687a58f Mon Sep 17 00:00:00 2001
From: Pawel Harlozinski pawel.harlozinski@linux.intel.com Date: Tue, 12 Nov 2019 14:02:36 +0100 Subject: [PATCH] ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report
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.int... Signed-off-by: Mark Brown broonie@kernel.org Cc: stable@vger.kernel.org --- sound/soc/soc-jack.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c index a71d2340eb05..b5748dcd490f 100644 --- a/sound/soc/soc-jack.c +++ b/sound/soc/soc-jack.c @@ -82,10 +82,9 @@ void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask) unsigned int sync = 0; int enable;
- trace_snd_soc_jack_report(jack, mask, status); - if (!jack) return; + trace_snd_soc_jack_report(jack, mask, status);
dapm = &jack->card->dapm;