ffmpeg | branch: release/3.3 | Michael Niedermayer <mich...@niedermayer.cc> | Fri Sep 22 20:45:27 2017 +0200| [ab845587d135e64ce09bf360c23c956695db357a] | committer: Michael Niedermayer
avcodec/takdec: Fix integer overflow in decode_lpc() Fixes: runtime error: signed integer overflow: 16748560 + 2143729712 cannot be represented in type 'int' Fixes: 3202/clusterfuzz-testcase-minimized-4988291642294272 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 5d31f03a0264cac24434c8108daef4ccba6d28f9) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ab845587d135e64ce09bf360c23c956695db357a --- libavcodec/takdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/takdec.c b/libavcodec/takdec.c index 41f30442d8..6f32f8859e 100644 --- a/libavcodec/takdec.c +++ b/libavcodec/takdec.c @@ -206,7 +206,7 @@ static void decode_lpc(int32_t *coeffs, int mode, int length) int a1 = *coeffs++; for (i = 0; i < length - 1 >> 1; i++) { *coeffs += a1; - coeffs[1] += *coeffs; + coeffs[1] += (unsigned)*coeffs; a1 = coeffs[1]; coeffs += 2; } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
