[FFmpeg-devel] [PATCH 2/6] avcodec/pngdec: Check deloco index more exactly

[Michael Niedermayer]

On Thu, Jan 12, 2023 at 12:54:28AM +0100, Michael Niedermayer wrote:
> Fixes: out of array access:
> Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PNG_fuzzer-6716193709096960
> 
> Alternatively it should be possible to limit this to 3 plane RGB 8 /16bit to ensure the size is what it should be
> 
> Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavcodec/pngdec.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

will apply

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

There will always be a question for which you do not know the correct answer.
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