Message ID | 20200719174218.30659-4-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | aa8935b395162f8438d1f055e671e92685ed1586 |
Headers | show |
Series | [FFmpeg-devel,1/6] avformat/wc3movie: Move wc3_read_close() up | expand |
Context | Check | Description |
---|---|---|
andriy/default | pending | |
andriy/make | success | Make finished |
andriy/make_fate | success | Make fate finished |
On Sun, Jul 19, 2020 at 07:42:16PM +0200, Michael Niedermayer wrote: > Fixes: signed integer overflow: 8398407 * 300 cannot be represented in type 'int' > Fixes: 23914/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-4702539290509312 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavformat/cdg.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply [...]
diff --git a/libavformat/cdg.c b/libavformat/cdg.c index 05cac6e528..f933819d57 100644 --- a/libavformat/cdg.c +++ b/libavformat/cdg.c @@ -49,7 +49,7 @@ static int read_header(AVFormatContext *s) if (ret < 0) { av_log(s, AV_LOG_WARNING, "Cannot calculate duration as file size cannot be determined\n"); } else - vst->duration = (ret * vst->time_base.den) / (CDG_PACKET_SIZE * 300); + vst->duration = (ret * (int64_t)vst->time_base.den) / (CDG_PACKET_SIZE * 300); return 0; }
Fixes: signed integer overflow: 8398407 * 300 cannot be represented in type 'int' Fixes: 23914/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-4702539290509312 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavformat/cdg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)