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avcodec/bmvvideo: Fix runtime error: left shift of 137 by 24 places cannot be represented in type 'int' 

Fixes: 1411/clusterfuzz-testcase-minimized-5776085184675840

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 29692023b2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-08 15:46:55 +02:00
parent 493dc7bb12
commit 5817946f52
1 changed files with 1 additions and 1 deletions
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2
libavcodec/bmvvideo.c
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@ -107,7 +107,7 @@ static int decode_bmv_frame(const uint8_t *source, int src_len, uint8_t *frame,
if (src < source || src >= source_end) if (src < source || src >= source_end)
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
shift += 2; shift += 2;
val |= *src << shift; val |= (unsigned)*src << shift;
if (*src & 0xC) if (*src & 0xC)
break; break;
} }