ffmpeg | branch: release/4.1 | Michael Niedermayer <mich...@niedermayer.cc> | Mon Mar 28 00:26:06 2022 +0200| [61f4c4fc4265a170e9b789fe2e7e0acf11396129] | committer: Michael Niedermayer
avcodec/takdsp: Fix integer overflow in decorrelate_sf() Fixes: signed integer overflow: -101 * 71041254 cannot be represented in type 'int' Fixes: 45938/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-4687974320701440 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 01d8c887f63bcb1f870034ed441504b3daffc645) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=61f4c4fc4265a170e9b789fe2e7e0acf11396129 --- libavcodec/takdsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/takdsp.c b/libavcodec/takdsp.c index 9cb8052596..a8f9dba342 100644 --- a/libavcodec/takdsp.c +++ b/libavcodec/takdsp.c @@ -65,7 +65,7 @@ static void decorrelate_sf(int32_t *p1, int32_t *p2, int length, int dshift, int for (i = 0; i < length; i++) { int32_t a = p1[i]; int32_t b = p2[i]; - b = (unsigned)(dfactor * (b >> dshift) + 128 >> 8) << dshift; + b = (unsigned)((int)(dfactor * (unsigned)(b >> dshift) + 128) >> 8) << dshift; p1[i] = b - a; } } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
