ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Thu Nov 5 20:04:20 2020 +0100| [76b6c46a81f420ffa04211d4b598547f14b67cb7] | committer: Michael Niedermayer
avformat/av1dec: check size before addition in probing Fixes: signed integer overflow: 175 + 2147483571 cannot be represented in type 'int' Fixes: 26833/clusterfuzz-testcase-minimized-ffmpeg_dem_IMAGE2_fuzzer-5969501214212096 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=76b6c46a81f420ffa04211d4b598547f14b67cb7 --- libavformat/av1dec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/av1dec.c b/libavformat/av1dec.c index 395eef6522..5ae81b34d4 100644 --- a/libavformat/av1dec.c +++ b/libavformat/av1dec.c @@ -361,7 +361,7 @@ static int obu_probe(const AVProbeData *p) ret = read_obu_with_size(p->buf + cnt, p->buf_size - cnt, &obu_size, &type); if (ret < 0 || obu_size <= 0) return 0; - cnt += ret; + cnt += FFMIN(ret, p->buf_size - cnt); ret = get_score(type, &seq); if (ret >= 0) _______________________________________________ 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".
