[FFmpeg-devel] [PATCH 3/5] avcodec/alac: Fix multiple integer overflows in lpc_prediction()

Michael Niedermayer michael at niedermayer.cc
Fri Aug 23 16:50:15 EEST 2019


On Fri, Aug 09, 2019 at 01:23:48AM +0200, Michael Niedermayer wrote:
> Fixes: signed integer overflow: 2088795537 + 2147254401 cannot be represented in type 'int'
> Fixes: signed integer overflow: -1500363496 + -1295351808 cannot be represented in type 'int'
> Fixes: signed integer overflow: -79560 * 32640 cannot be represented in type 'int'
> Fixes: signed integer overflow: 2088910005 + 2088796058 cannot be represented in type 'int'
> Fixes: signed integer overflow: -117258064 - 2088725225 cannot be represented in type 'int'
> Fixes: signed integer overflow: 2088725225 - -117258064 cannot be represented in type 'int'
> Fixes: 15739/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5630664122040320
> 
> 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/alac.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)

will apply

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

The worst form of inequality is to try to make unequal things equal.
-- Aristotle
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