diff options
| author | Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com> | 2022-11-22 12:01:13 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-14 11:30:41 +0100 |
| commit | f2ba66d8738584d124aff4e760ed1337f5f6dfb6 (patch) | |
| tree | 7506fcda52a3df248af4e4fc0610f4559fee575a /sound/soc/soc-pcm.c | |
| parent | 3b2c064a8e1120fdc388579bac62d9d1f82842ca (diff) | |
ASoC: soc-pcm: Add NULL check in BE reparenting
[ Upstream commit db8f91d424fe0ea6db337aca8bc05908bbce1498 ]
Add NULL check in dpcm_be_reparent API, to handle
kernel NULL pointer dereference error.
The issue occurred in fuzzing test.
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Link: https://lore.kernel.org/r/1669098673-29703-1-git-send-email-quic_srivasam@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound/soc/soc-pcm.c')
| -rw-r--r-- | sound/soc/soc-pcm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 1196167364d4..2f1ab70a68fc 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1201,6 +1201,8 @@ static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe, return; be_substream = snd_soc_dpcm_get_substream(be, stream); + if (!be_substream) + return; for_each_dpcm_fe(be, stream, dpcm) { if (dpcm->fe == fe) |