| Message ID | 20240620193504.2310780-4-michael@niedermayer.cc |
|---|---|
| State | New |
| Headers | show |
| Series | [FFmpeg-devel,1/4] avcodec/j2kenc: Merge dwt_norm into lambda | expand |
| Context | Check | Description |
|---|---|---|
| yinshiyou/make_loongarch64 | success | Make finished |
| yinshiyou/make_fate_loongarch64 | success | Make fate finished |
| andriy/make_x86 | success | Make finished |
| andriy/make_fate_x86 | success | Make fate finished |
On Thu, Jun 20, 2024 at 09:35:04PM +0200, Michael Niedermayer wrote: > Fixes: out of array access > Fixes: 69098/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG2VIDEO_fuzzer-6107989688778752 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/mpegvideo_enc.c | 2 ++ > 1 file changed, 2 insertions(+) will apply [...]
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c index eda23056301..dc9a0009f53 100644 --- a/libavcodec/mpegvideo_enc.c +++ b/libavcodec/mpegvideo_enc.c @@ -1266,6 +1266,8 @@ static int load_input_picture(MpegEncContext *s, const AVFrame *pic_arg) /* shift buffer entries */ for (int i = flush_offset; i <= MAX_B_FRAMES; i++) s->input_picture[i - flush_offset] = s->input_picture[i]; + for (int i = MAX_B_FRAMES + 1 - flush_offset; i <= MAX_B_FRAMES; i++) + s->input_picture[i] = NULL; s->input_picture[encoding_delay] = pic;
Fixes: out of array access Fixes: 69098/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG2VIDEO_fuzzer-6107989688778752 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/mpegvideo_enc.c | 2 ++ 1 file changed, 2 insertions(+)