ffmpeg | branch: release/3.0 | Michael Niedermayer <mich...@niedermayer.cc> | Fri Sep 22 20:45:27 2017 +0200| [2c84969cb4aef2526e11d070af5c300b5b4e3818] | 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=2c84969cb4aef2526e11d070af5c300b5b4e3818 --- libavcodec/takdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/takdec.c b/libavcodec/takdec.c index e6867eb1b9..b494c5888d 100644 --- a/libavcodec/takdec.c +++ b/libavcodec/takdec.c @@ -195,7 +195,7 @@ 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
