ffmpeg | branch: release/3.4 | Michael Niedermayer <mich...@niedermayer.cc> | Wed Sep 15 22:00:46 2021 +0200| [fa742cda4e39092d1745c97a07f116448cc26da1] | committer: Michael Niedermayer
avformat/mvdec: Do not set invalid sample rate Fixes: signed integer overflow: -682581959642593728 * 16 cannot be represented in type 'long' Fixes: 37883/clusterfuzz-testcase-minimized-ffmpeg_dem_MV_fuzzer-5311691517198336 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Peter Ross <pr...@xvid.org> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 737e6bf2162b89d396f4d477bfe8c99f1dd885de) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=fa742cda4e39092d1745c97a07f116448cc26da1 --- libavformat/mvdec.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/libavformat/mvdec.c b/libavformat/mvdec.c index 3e483ebf70..da0b3d4ad0 100644 --- a/libavformat/mvdec.c +++ b/libavformat/mvdec.c @@ -156,9 +156,10 @@ static int parse_audio_var(AVFormatContext *avctx, AVStream *st, } else if (!strcmp(name, "NUM_CHANNELS")) { 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) + int sample_rate = var_read_int(pb, size); + if (sample_rate <= 0) return AVERROR_INVALIDDATA; + st->codecpar->sample_rate = sample_rate; 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 ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
