Message ID | 20201020205619.7939-11-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | ac8cebd48e405e6f610fc8e61f070f1258b73017 |
Headers | show |
Series | [FFmpeg-devel,01/11] avcodec/notchlc: Check uncompressed size against input for LZ4 | 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 Tue, Oct 20, 2020 at 10:56:19PM +0200, Michael Niedermayer wrote: > Fixes: signed integer overflow: 9223372036854770375 + 5450 cannot be represented in type 'long' > Fixes: 26471/clusterfuzz-testcase-minimized-ffmpeg_dem_MXG_fuzzer-6229617557635072 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavutil/mathematics.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply [...]
diff --git a/libavutil/mathematics.c b/libavutil/mathematics.c index 16c6e4db03..da0fc17b2e 100644 --- a/libavutil/mathematics.c +++ b/libavutil/mathematics.c @@ -210,6 +210,6 @@ int64_t av_add_stable(AVRational ts_tb, int64_t ts, AVRational inc_tb, int64_t i if (old == INT64_MAX || old == AV_NOPTS_VALUE || old_ts == AV_NOPTS_VALUE) return ts; - return av_rescale_q(old + 1, inc_tb, ts_tb) + (ts - old_ts); + return av_sat_add64(av_rescale_q(old + 1, inc_tb, ts_tb), ts - old_ts); } }
Fixes: signed integer overflow: 9223372036854770375 + 5450 cannot be represented in type 'long' Fixes: 26471/clusterfuzz-testcase-minimized-ffmpeg_dem_MXG_fuzzer-6229617557635072 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavutil/mathematics.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)