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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-12-24 20:42:27 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-10-17 21:34:53 +0200 |
| commit | 18775fa63c77adde8c91b2bf8a47b9b1388c7192 (patch) | |
| tree | 27312fba3cd45808f512fc96f75c17c28331fc43 | |
| parent | 2d03bbcd780d2762c7e4f2f686d7bac78190a2cb (diff) | |
| download | ffmpeg-18775fa63c77adde8c91b2bf8a47b9b1388c7192.tar.gz | |
avformat/mpc8: Check size before implicitly converting to int
Fixes: Timeout
Fixes: 28551/clusterfuzz-testcase-minimized-ffmpeg_dem_MPC8_fuzzer-6229183210586112
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 78d6d8ddb571ecca54616517defbf894a45ea9c3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/mpc8.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mpc8.c b/libavformat/mpc8.c index e3bb069857..551e7f8972 100644 --- a/libavformat/mpc8.c +++ b/libavformat/mpc8.c @@ -291,7 +291,7 @@ static int mpc8_read_packet(AVFormatContext *s, AVPacket *pkt) return AVERROR_EOF; mpc8_get_chunk_header(s->pb, &tag, &size); - if (size < 0) + if (size < 0 || size > INT_MAX) return -1; if(tag == TAG_AUDIOPACKET){ if(av_get_packet(s->pb, pkt, size) < 0) |