ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Feb 19 20:39:13 2017 +0100| [c91bdd4524815125e1f7d8dee22ee7a73173c39a] | committer: Michael Niedermayer
avcodec/mjpegdec: Fix runtime error: left shift of negative value -507 Fixes: 611/clusterfuzz-testcase-5613455820193792 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c91bdd4524815125e1f7d8dee22ee7a73173c39a --- libavcodec/mjpegdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c index 34a988d..69469c5 100644 --- a/libavcodec/mjpegdec.c +++ b/libavcodec/mjpegdec.c @@ -1137,7 +1137,7 @@ static int ljpeg_decode_yuv_scan(MJpegDecodeContext *s, int predictor, if (s->interlaced && s->bottom_field) ptr += linesize >> 1; pred &= mask; - *ptr= pred + (dc << point_transform); + *ptr= pred + ((unsigned)dc << point_transform); }else{ ptr16 = (uint16_t*)(s->picture_ptr->data[c] + 2*(linesize * (v * mb_y + y)) + 2*(h * mb_x + x)); //FIXME optimize this crap if(y==0 && toprow){ _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
