[FFmpeg-devel] [PATCH] avcodec/xvididct: Fix integer overflow in idct_row()

Michael Niedermayer michael at niedermayer.cc
Fri Sep 22 22:31:50 EEST 2023


On Fri, Sep 08, 2023 at 12:13:11AM +0200, Michael Niedermayer wrote:
> Fixes: signed integer overflow: 1871429831 + 343006811 cannot be represented in type 'int'
> Fixes: 61784/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AIC_fuzzer-5372151001120768
> 
> 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/xvididct.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

will apply

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

It is what and why we do it that matters, not just one of them.
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