[FFmpeg-devel] [PATCH 2/2] avcodec/exr: x/ymax cannot be INT_MAX

Michael Niedermayer michael at niedermayer.cc
Thu May 27 18:44:09 EEST 2021


On Wed, Apr 21, 2021 at 02:31:18PM +0200, Michael Niedermayer wrote:
> The code uses x/ymax + 1 so the maximum is INT_MAX-1
> 
> Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
> Fixes: 33158/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EXR_fuzzer-5545462457303040
> 
> 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/exr.c | 1 +
>  1 file changed, 1 insertion(+)

will apply

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

The educated differ from the uneducated as much as the living from the
dead. -- Aristotle 
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