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| author | Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com> | 2022-11-22 07:31:13 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-11-22 13:23:00 +0100 |
| commit | db8f91d424fe0ea6db337aca8bc05908bbce1498 (patch) | |
| tree | 8a4a1fa0fed7bb7a819208d6a82a969f04fa1261 /sound/soc | |
| parent | ASoC: SOF: dai: move AMD_HS to end of list to restore backwards-compatibility (diff) | |
| download | linux-db8f91d424fe0ea6db337aca8bc05908bbce1498.tar.xz linux-db8f91d424fe0ea6db337aca8bc05908bbce1498.zip | |
ASoC: soc-pcm: Add NULL check in BE reparenting
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>
Diffstat (limited to 'sound/soc')
| -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 8ceded22a3c4..35a16c3f9591 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1247,6 +1247,8 @@ 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) |