[FFmpeg-devel] [PATCH 3/4] avformat/jacosubdec: Use 64bit inside get_shift()

Michael Niedermayer michael at niedermayer.cc
Sat Oct 24 20:09:57 EEST 2020

On Mon, Oct 19, 2020 at 05:59:54PM +0200, Michael Niedermayer wrote:
> Fixes: signed integer overflow: 111111111 * 30 cannot be represented in type 'int'
> Fixes: 26448/clusterfuzz-testcase-minimized-ffmpeg_dem_JACOSUB_fuzzer-5638440374501376
> Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavformat/jacosubdec.c | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)

will apply

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Any man who breaks a law that conscience tells him is unjust and willingly 
accepts the penalty by staying in jail in order to arouse the conscience of 
the community on the injustice of the law is at that moment expressing the 
very highest respect for law. - Martin Luther King Jr
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