ffmpeg | branch: release/4.4 | Michael Niedermayer <mich...@niedermayer.cc> | Sat Sep 30 00:38:17 2023 +0200| [625ca605f5b1f60f6409949533bcff8982d61464] | committer: Michael Niedermayer
avformat/cafdec: dont seek beyond 64bit Fixes: signed integer overflow: 64 + 9223372036854775807 cannot be represented in type 'long long' Fixes: 51896/clusterfuzz-testcase-minimized-ffmpeg_dem_CAF_fuzzer-6418242730328064 Fixes: 62276/clusterfuzz-testcase-minimized-ffmpeg_dem_CAF_fuzzer-6418242730328064 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 d973fcbcc2f944752ff10e6a76b0b2d9329937a7) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=625ca605f5b1f60f6409949533bcff8982d61464 --- libavformat/cafdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/cafdec.c b/libavformat/cafdec.c index 1842c3c0ae..296e07c085 100644 --- a/libavformat/cafdec.c +++ b/libavformat/cafdec.c @@ -220,7 +220,7 @@ static int read_pakt_chunk(AVFormatContext *s, int64_t size) } } - if (avio_tell(pb) - ccount > size) { + if (avio_tell(pb) - ccount > size || size > INT64_MAX - ccount) { av_log(s, AV_LOG_ERROR, "error reading packet table\n"); return AVERROR_INVALIDDATA; } _______________________________________________ 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".
