ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Tue Aug 15 03:32:44 2017 +0200| [92da23093c784b1d9f0db4db51d28ea80a59e759] | committer: Michael Niedermayer
avcodec/diracdec: Fixes integer overflow Fixes: runtime error: signed integer overflow: 340018243 * 27 cannot be represented in type 'int' Fixes: 2861/clusterfuzz-testcase-minimized-5361070510178304 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=92da23093c784b1d9f0db4db51d28ea80a59e759 --- libavcodec/diracdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/diracdec.c b/libavcodec/diracdec.c index 29042bd86b..0aee08f9e1 100644 --- a/libavcodec/diracdec.c +++ b/libavcodec/diracdec.c @@ -442,7 +442,7 @@ static av_cold int dirac_decode_end(AVCodecContext *avctx) static inline int coeff_unpack_golomb(GetBitContext *gb, int qfactor, int qoffset) { int coeff = dirac_get_se_golomb(gb); - const int sign = FFSIGN(coeff); + const unsigned sign = FFSIGN(coeff); if (coeff) coeff = sign*((sign * coeff * qfactor + qoffset) >> 2); return coeff; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
