Fixes: signed integer overflow: 2 * 2132811776 cannot be represented in type 'int' Fixes: 25722/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-6221704077246464
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/moflex.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/moflex.c b/libavformat/moflex.c index 2111157408..937f63cb63 100644 --- a/libavformat/moflex.c +++ b/libavformat/moflex.c @@ -62,6 +62,8 @@ static int pop_int(BitReader *br, AVIOContext *pb, int n) if (ret < 0) return ret; + if (ret > INT_MAX - value - value) + return AVERROR_INVALIDDATA; value = 2 * value + ret; } -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
