ffmpeg | branch: release/4.1 | Michael Niedermayer <mich...@niedermayer.cc> | Tue Jan 15 00:02:25 2019 +0100| [62f5325ca30a3cc27c625bb468d65e2e4bfd7996] | committer: Michael Niedermayer
avcodec/ilbcdec: Fix integer overflow in construct_vector() webrtc contains explicit code to ignore the undefined behavior (RTC_NO_SANITIZE / OverflowingAddS32S32ToS32()) Probably fixes: Integer overflow (unreproducable here) Probably fixes: 12215/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ILBC_fuzzer-5767142427852800 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 c95d0fb23917c35886f3b62daa05af20d2700a1e) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=62f5325ca30a3cc27c625bb468d65e2e4bfd7996 --- libavcodec/ilbcdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/ilbcdec.c b/libavcodec/ilbcdec.c index 50012c0231..643547f4ab 100644 --- a/libavcodec/ilbcdec.c +++ b/libavcodec/ilbcdec.c @@ -745,7 +745,7 @@ static void construct_vector ( for (j = 0; j < veclen; j++) { a32 = SPL_MUL_16_16(*gainPtr++, cbvec0[j]); a32 += SPL_MUL_16_16(*gainPtr++, cbvec1[j]); - a32 += SPL_MUL_16_16(*gainPtr, cbvec2[j]); + a32 += (unsigned)SPL_MUL_16_16(*gainPtr, cbvec2[j]); gainPtr -= 2; decvector[j] = (a32 + 8192) >> 14; } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
