| Message ID | 20240912233337.2444412-2-michael@niedermayer.cc |
|---|---|
| State | New |
| Headers | show |
| Series | [FFmpeg-devel,1/7] avformat/mov_chan: Check for FF_SANE_NB_CHANNELS | 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 Fri, Sep 13, 2024 at 01:33:32AM +0200, Michael Niedermayer wrote: > Fixes: left shift of 896021632 by 3 places cannot be represented in type 'int' > Fixes: 70544/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC2_fuzzer-6685593652756480 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/vc2enc.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply patches 2-7 [...]
diff --git a/libavcodec/vc2enc.c b/libavcodec/vc2enc.c index 508defc0b9f..b82370a7532 100644 --- a/libavcodec/vc2enc.c +++ b/libavcodec/vc2enc.c @@ -988,7 +988,7 @@ static av_cold int vc2_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, } s->slice_min_bytes = s->slice_max_bytes - s->slice_max_bytes*(s->tolerance/100.0f); - if (s->slice_min_bytes < 0) + if (s->slice_min_bytes < 0 || s->slice_max_bytes > INT_MAX >> 3) return AVERROR(EINVAL); ret = encode_frame(s, avpkt, frame, aux_data, header_size, s->interlaced);
Fixes: left shift of 896021632 by 3 places cannot be represented in type 'int' Fixes: 70544/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC2_fuzzer-6685593652756480 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/vc2enc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)