Re: [FFmpeg-devel] [PATCH 2/3] avcodec/vqcdec: Check width & 15

2022-12-08 Thread Michael Niedermayer
On Thu, Dec 08, 2022 at 06:32:40PM +1100, Peter Ross wrote: > On Sun, Nov 27, 2022 at 11:34:34PM +0100, Michael Niedermayer wrote: > > Various parts of the code assume that width can be divided by various > > powers of 2 > > without rounding > > > > Fixes: out of array access > > Fixes: > > 5362

Re: [FFmpeg-devel] [PATCH 2/3] avcodec/vqcdec: Check width & 15

2022-12-07 Thread Peter Ross
On Sun, Nov 27, 2022 at 11:34:34PM +0100, Michael Niedermayer wrote: > Various parts of the code assume that width can be divided by various powers > of 2 > without rounding > > Fixes: out of array access > Fixes: > 53623/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VQC_fuzzer-6209269924233

[FFmpeg-devel] [PATCH 2/3] avcodec/vqcdec: Check width & 15

2022-11-27 Thread Michael Niedermayer
Various parts of the code assume that width can be divided by various powers of 2 without rounding Fixes: out of array access Fixes: 53623/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VQC_fuzzer-6209269924233216 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/