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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-07-06 23:54:49 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-07-22 17:15:14 +0200 |
| commit | e6584a3f19c0d6a6d4143c8d8a3d4fe9222d32aa (patch) | |
| tree | f01aba545fed181271de57debe666348b25f02f6 | |
| parent | e8a51675ea8abf67fd5768dcfa17869e130cb8a5 (diff) | |
| download | ffmpeg-e6584a3f19c0d6a6d4143c8d8a3d4fe9222d32aa.tar.gz | |
avformat/nutdec: Check get_packetheader() in mainheader
Fixes; Timeout
Fixes: 48794/clusterfuzz-testcase-minimized-ffmpeg_dem_NUT_fuzzer-6524604713140224
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 b5de084aa63b79586bc445e6a7fea837688b3941)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/nutdec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/nutdec.c b/libavformat/nutdec.c index 0db3d03f6c..8cc56615ad 100644 --- a/libavformat/nutdec.c +++ b/libavformat/nutdec.c @@ -200,6 +200,8 @@ static int decode_main_header(NUTContext *nut) int tmp_stream, tmp_mul, tmp_pts, tmp_size, tmp_res, tmp_head_idx; length = get_packetheader(nut, bc, 1, MAIN_STARTCODE); + if (length == (uint64_t)-1) + return AVERROR_INVALIDDATA; end = length + avio_tell(bc); nut->version = ffio_read_varlen(bc); |