ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Wed Apr 28 16:44:13 2021 +0200| [0ff60249a57cba00ab679ca6190a802cc0c7b9c7] | committer: Michael Niedermayer
avformat/mvdec: Check sample rate in parse_audio_var() Fixes: signed integer overflow: -635424002382840000 * 16 cannot be represented in type 'long' Fixes: 33612/clusterfuzz-testcase-minimized-ffmpeg_dem_MV_fuzzer-5704741108711424 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Peter Ross <[email protected]> Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0ff60249a57cba00ab679ca6190a802cc0c7b9c7 --- libavformat/mvdec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/mvdec.c b/libavformat/mvdec.c index 2f72f9eb4f..b1450e08da 100644 --- a/libavformat/mvdec.c +++ b/libavformat/mvdec.c @@ -157,6 +157,8 @@ static int parse_audio_var(AVFormatContext *avctx, AVStream *st, return set_channels(avctx, st, var_read_int(pb, size)); } else if (!strcmp(name, "SAMPLE_RATE")) { st->codecpar->sample_rate = var_read_int(pb, size); + if (st->codecpar->sample_rate <= 0) + return AVERROR_INVALIDDATA; avpriv_set_pts_info(st, 33, 1, st->codecpar->sample_rate); } else if (!strcmp(name, "SAMPLE_WIDTH")) { uint64_t bpc = var_read_int(pb, size) * (uint64_t)8; _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
