| Message ID | 20200912181855.29304-2-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | 686f0151901849de3b2073fa73265472073e0208 |
| Headers | show |
| Series | [FFmpeg-devel,1/2] avcodec/arbc: Assume that at least one segment has a tile | expand |
| Context | Check | Description |
|---|---|---|
| andriy/default | pending | |
| andriy/make | success | Make finished |
| andriy/make_fate | success | Make fate finished |
On Sat, Sep 12, 2020 at 08:18:55PM +0200, Michael Niedermayer wrote: > Fixes: signed integer overflow: 20 * 5184056935931942919 cannot be represented in type 'long' > Fixes: 25466/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-4798660247552000 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavformat/asfdec_f.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply [...]
diff --git a/libavformat/asfdec_f.c b/libavformat/asfdec_f.c index e9ddca7151..103155e9e7 100644 --- a/libavformat/asfdec_f.c +++ b/libavformat/asfdec_f.c @@ -424,7 +424,7 @@ static int asf_read_stream_properties(AVFormatContext *s, int64_t size) if (!(asf->hdr.flags & 0x01)) { // if we aren't streaming... int64_t fsize = avio_size(pb); if (fsize <= 0 || (int64_t)asf->hdr.file_size <= 0 || - 20*FFABS(fsize - (int64_t)asf->hdr.file_size) < FFMIN(fsize, asf->hdr.file_size)) + FFABS(fsize - (int64_t)asf->hdr.file_size) < FFMIN(fsize, asf->hdr.file_size)/20) st->duration = asf->hdr.play_time / (10000000 / 1000) - start_time; }
Fixes: signed integer overflow: 20 * 5184056935931942919 cannot be represented in type 'long' Fixes: 25466/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-4798660247552000 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavformat/asfdec_f.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)