The branch main has been updated by christos: URL: https://cgit.FreeBSD.org/src/commit/?id=1a768ea9db3d66941b0dc5340ac028ef548808b8
commit 1a768ea9db3d66941b0dc5340ac028ef548808b8 Author: Christos Margiolis <[email protected]> AuthorDate: 2024-07-06 18:23:15 +0000 Commit: Christos Margiolis <[email protected]> CommitDate: 2024-07-06 18:23:15 +0000 sound: Add min_rate and min_channels safety check in SNDCTL_AUDIOINFO If the channel list is empty, min_rate and min_channels will be INT_MAX. Instead, assign them to 0, like we do in sndstat_get_caps(). Sponsored by: The FreeBSD Foundation MFC after: 2 days Reviewed by: dev_submerge.ch Differential Revision: https://reviews.freebsd.org/D45876 --- sys/dev/sound/pcm/dsp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sys/dev/sound/pcm/dsp.c b/sys/dev/sound/pcm/dsp.c index 0689dfedb9c2..2b765bc8b115 100644 --- a/sys/dev/sound/pcm/dsp.c +++ b/sys/dev/sound/pcm/dsp.c @@ -2182,6 +2182,10 @@ dsp_oss_audioinfo(struct cdev *i_dev, oss_audioinfo *ai, bool ex) CHN_UNLOCK(ch); } + if (ai->min_rate == INT_MAX) + ai->min_rate = 0; + if (ai->min_channels == INT_MAX) + ai->min_channels = 0; PCM_UNLOCK(d);
