ffmpeg | branch: release/3.4 | Michael Niedermayer <mich...@niedermayer.cc> | Sat Sep 17 21:19:53 2022 +0200| [225d003f5b944a96ede6d6d964b69e8d0eea7f50] | committer: Michael Niedermayer
avformat/ape: Check frames size Fixes: signed integer overflow: 9223372036854775806 + 3 cannot be represented in type 'long' Fixes: 50993/clusterfuzz-testcase-minimized-ffmpeg_dem_APE_fuzzer-6389264140599296 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 d0349c9929e2891c90011a83152624d5cf18e628) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=225d003f5b944a96ede6d6d964b69e8d0eea7f50 --- libavformat/ape.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/ape.c b/libavformat/ape.c index 3a3b91283e..c3cc7b6445 100644 --- a/libavformat/ape.c +++ b/libavformat/ape.c @@ -323,6 +323,8 @@ static int ape_read_header(AVFormatContext * s) ape->frames[i].pos -= ape->frames[i].skip; ape->frames[i].size += ape->frames[i].skip; } + if (ape->frames[i].size > INT_MAX - 3) + return AVERROR_INVALIDDATA; ape->frames[i].size = (ape->frames[i].size + 3) & ~3; } if (ape->fileversion < 3810) { _______________________________________________ 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".
