ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Tue May 23 14:50:55 2017 +0200| [fb75ad79cb8a00d42857b252e0049a0bbe90da66] | committer: Michael Niedermayer
avcodec/celp_filters: Fix runtime error: signed integer overflow: 1892453989 + 381702783 cannot be represented in type 'int' Fixes: 1766/clusterfuzz-testcase-minimized-6562020075765760 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=fb75ad79cb8a00d42857b252e0049a0bbe90da66 --- libavcodec/celp_filters.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/celp_filters.c b/libavcodec/celp_filters.c index a81fd8831b..fafedd99a3 100644 --- a/libavcodec/celp_filters.c +++ b/libavcodec/celp_filters.c @@ -67,7 +67,7 @@ int ff_celp_lp_synthesis_filter(int16_t *out, const int16_t *filter_coeffs, for (n = 0; n < buffer_length; n++) { int sum = -rounder, sum1; for (i = 1; i <= filter_length; i++) - sum += filter_coeffs[i-1] * out[n-i]; + sum += (unsigned)(filter_coeffs[i-1] * out[n-i]); sum1 = ((-sum >> 12) + in[n]) >> shift; sum = av_clip_int16(sum1); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
