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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-02-20 07:48:15 +02:00
FFmpeg/libavcodec
Michael Niedermayer 4523cc5e75 avcodec/ilbcdec: Fix undefined integer overflow lsf2poly()
The addition is moved up into the context where the variable is unsigned avoiding
the undefined behavior

Fixes: runtime error: signed integer overflow: 2147481972 + 4096 cannot be represented in type 'int'
Fixes: 12444/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ILBC_fuzzer-5755706244857856

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-01-28 01:09:38 +01:00
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