Message ID | 20201105231110.7772-3-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | 76b6c46a81f420ffa04211d4b598547f14b67cb7 |
Headers | show |
Series | [FFmpeg-devel,1/7,RFC] Revert "avcodec/adpcm_swf: support decoding multiple fixed-sized blocks at once" | expand |
Context | Check | Description |
---|---|---|
andriy/x86_make | success | Make finished |
andriy/x86_make_fate | success | Make fate finished |
On Fri, Nov 06, 2020 at 12:11:06AM +0100, Michael Niedermayer wrote: > 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 <michael@niedermayer.cc> > --- > libavformat/av1dec.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply
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)
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 <michael@niedermayer.cc> --- libavformat/av1dec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)