ffmpeg | branch: release/3.3 | Michael Niedermayer <mich...@niedermayer.cc> | Sun May 21 02:12:21 2017 +0200| [d11c686204b40921152fa6fd56e6b4b171ea39c5] | committer: Michael Niedermayer
avcodec/vp9block: fix runtime error: signed integer overflow: 196675 * 20670 cannot be represented in type 'int' Fixes: 1710/clusterfuzz-testcase-minimized-4837032931098624 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: "Ronald S. Bultje" <rsbul...@gmail.com> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit d4ee76780869c659a5d3b0815c56024ab260a81d) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d11c686204b40921152fa6fd56e6b4b171ea39c5 --- libavcodec/vp9block.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/vp9block.c b/libavcodec/vp9block.c index ae2f0e4c6f..a16ccdccdb 100644 --- a/libavcodec/vp9block.c +++ b/libavcodec/vp9block.c @@ -915,9 +915,9 @@ skip_eob: if (!--band_left) band_left = band_counts[++band]; if (is_tx32x32) - STORE_COEF(coef, rc, ((vp8_rac_get(c) ? -val : val) * qmul[!!i]) / 2); + STORE_COEF(coef, rc, (int)((vp8_rac_get(c) ? -val : val) * (unsigned)qmul[!!i]) / 2); else - STORE_COEF(coef, rc, (vp8_rac_get(c) ? -val : val) * qmul[!!i]); + STORE_COEF(coef, rc, (vp8_rac_get(c) ? -val : val) * (unsigned)qmul[!!i]); nnz = (1 + cache[nb[i][0]] + cache[nb[i][1]]) >> 1; tp = p[band][nnz]; } while (++i < n_coeffs); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
