ffmpeg | branch: release/4.4 | Michael Niedermayer <mich...@niedermayer.cc> | Sat Sep 30 21:33:34 2023 +0200| [ef36359c1439420471dce4581ea35cd8b910bfdc] | committer: Michael Niedermayer
avformat/wavdec: Check left avio_tell for overflow Fixes: signed integer overflow: 155 + 9223372036854775655 cannot be represented in type 'long' Fixes: 51896/clusterfuzz-testcase-minimized-ffmpeg_dem_W64_fuzzer-5364032278495232 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 929ddef3f40102d6a84cfa17ed7c7ffebcf8236e) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ef36359c1439420471dce4581ea35cd8b910bfdc --- libavformat/wavdec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c index 061d904dfe..13f077cb58 100644 --- a/libavformat/wavdec.c +++ b/libavformat/wavdec.c @@ -765,6 +765,8 @@ smv_out: goto smv_retry; return AVERROR_EOF; } + if (INT64_MAX - left < avio_tell(s->pb)) + return AVERROR_INVALIDDATA; wav->data_end = avio_tell(s->pb) + left; } _______________________________________________ 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".
