| Message ID | 20210703210216.18186-1-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | 4d81550df9580b454d2530bcb37de20b8354ad6e |
| Headers | show |
| Series | [FFmpeg-devel] avformat/utils: Ignore negative duration in codec_info_duration computation | expand |
| Context | Check | Description |
|---|---|---|
| andriy/x86_make | success | Make finished |
| andriy/x86_make_fate | success | Make fate finished |
| andriy/PPC64_make | success | Make finished |
| andriy/PPC64_make_fate | success | Make fate finished |
On Sat, Jul 03, 2021 at 11:02:16PM +0200, Michael Niedermayer wrote: > Fixes: signed integer overflow: -5994697211974418462 + -3255307777713450286 cannot be represented in type 'long' > Fixes: 35332/clusterfuzz-testcase-minimized-ffmpeg_dem_MATROSKA_fuzzer-5868035117285376 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavformat/utils.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply [...]
diff --git a/libavformat/utils.c b/libavformat/utils.c index 0df14682a4..2974f3739e 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -3842,7 +3842,7 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options) av_packet_unref(pkt1); break; } - if (pkt->duration) { + if (pkt->duration > 0) { if (avctx->codec_type == AVMEDIA_TYPE_SUBTITLE && pkt->pts != AV_NOPTS_VALUE && st->start_time != AV_NOPTS_VALUE && pkt->pts >= st->start_time && (uint64_t)pkt->pts - st->start_time < INT64_MAX ) {
Fixes: signed integer overflow: -5994697211974418462 + -3255307777713450286 cannot be represented in type 'long' Fixes: 35332/clusterfuzz-testcase-minimized-ffmpeg_dem_MATROSKA_fuzzer-5868035117285376 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavformat/utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)