Fixes: runtime error: signed integer overflow: 267 * 8388608 cannot be represented in type 'int' Fixes: 2743/clusterfuzz-testcase-minimized-5820652076400640
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/snowdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/snowdec.c b/libavcodec/snowdec.c index 734f43e7d1..b74c468ce3 100644 --- a/libavcodec/snowdec.c +++ b/libavcodec/snowdec.c @@ -140,7 +140,7 @@ static inline void decode_subband_slice_buffered(SnowContext *s, SubBand *b, sli v = b->x_coeff[new_index].coeff; x = b->x_coeff[new_index++].x; while(x < w){ - register int t= ( (v>>1)*qmul + qadd)>>QEXPSHIFT; + register int t= (int)( (v>>1)*(unsigned)qmul + qadd)>>QEXPSHIFT; register int u= -(v&1); line[x] = (t^u) - u; -- 2.14.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
