| Message ID | 20201218232208.14207-3-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | 57f7e5caa324fd760aa9e134ee963e9936083c59 |
| Headers | show |
| Series | [FFmpeg-devel,1/8] avformat/mpegts: Increase pcr_incr width to 64bit | 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, Dec 19, 2020 at 12:22:03AM +0100, Michael Niedermayer wrote: > Fixes: signed integer overflow: -1498310196 - 902891776 cannot be represented in type 'int' > Fixes: 28445/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5075163389493248 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/simple_idct.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) will apply [...]
diff --git a/libavcodec/simple_idct.c b/libavcodec/simple_idct.c index 3b2e736538..0ef167491a 100644 --- a/libavcodec/simple_idct.c +++ b/libavcodec/simple_idct.c @@ -175,7 +175,8 @@ static inline void idct4col_add(uint8_t *dest, ptrdiff_t line_size, const int16_ #define R_SHIFT 11 static inline void idct4row(int16_t *row) { - int c0, c1, c2, c3, a0, a1, a2, a3; + unsigned c0, c1, c2, c3; + int a0, a1, a2, a3; a0 = row[0]; a1 = row[1];
Fixes: signed integer overflow: -1498310196 - 902891776 cannot be represented in type 'int' Fixes: 28445/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5075163389493248 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/simple_idct.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)