ffmpeg | branch: release/4.1 | Michael Niedermayer <mich...@niedermayer.cc> | Wed Sep 15 22:00:47 2021 +0200| [25f9794e5633d423796c871669472d97da17e0d5] | committer: Michael Niedermayer
avcodec/apedec: Fix integer overflow in intermediate Fixes: signed integer overflow: 559334865 * 4 cannot be represented in type 'int' Fixes: 37929/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-6751932295806976 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 90da43557f7257d72e95504f63ae6504406d6eab) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=25f9794e5633d423796c871669472d97da17e0d5 --- libavcodec/apedec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index e11ee0a708..7db1196d3f 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -1286,7 +1286,7 @@ static void do_apply_filter(APEContext *ctx, int version, APEFilter *f, absres = res < 0 ? -(unsigned)res : res; if (absres) *f->adaptcoeffs = APESIGN(res) * - (8 << ((absres > f->avg * 3) + (absres > f->avg * 4 / 3))); + (8 << ((absres > f->avg * 3) + (absres > (f->avg + f->avg / 3)))); /* equivalent to the following code if (absres <= f->avg * 4 / 3) *f->adaptcoeffs = APESIGN(res) * 8; _______________________________________________ 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".
