ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Thu May 18 01:54:43 2017 +0200| [58ac7fb9c395ab91cb321fa4c8c9e127ce8147c3] | committer: Michael Niedermayer
avcodec/dfa: Fix: runtime error: signed integer overflow: -14202 * 196877 cannot be represented in type 'int' Fixes: 1657/clusterfuzz-testcase-minimized-4710000079405056 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=58ac7fb9c395ab91cb321fa4c8c9e127ce8147c3 --- libavcodec/dfa.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/dfa.c b/libavcodec/dfa.c index 3ea12f0511..8067ac94e5 100644 --- a/libavcodec/dfa.c +++ b/libavcodec/dfa.c @@ -250,7 +250,7 @@ static int decode_wdlt(GetByteContext *gb, uint8_t *frame, int width, int height segments = bytestream2_get_le16u(gb); while ((segments & 0xC000) == 0xC000) { unsigned skip_lines = -(int16_t)segments; - unsigned delta = -((int16_t)segments * width); + int64_t delta = -((int16_t)segments * (int64_t)width); if (frame_end - frame <= delta || y + lines + skip_lines > height) return AVERROR_INVALIDDATA; frame += delta; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
