diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-06-12 14:49:11 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-06-25 13:30:09 +0200 |
| commit | d8716e3df9ee81909342b0b59f5b6eff052964fd (patch) | |
| tree | 09e7f720f48b7dd5c5b4d5e7ade7819811ad1146 /libavformat/vividas.c | |
| parent | 07ffe94c172041cfb03109b9bb6b8bf577332bda (diff) | |
avformat/vividas: check length in read_vblock()
Fixes: out of array access
Fixes: 15166/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5731062396747776
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat/vividas.c')
| -rw-r--r-- | libavformat/vividas.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/vividas.c b/libavformat/vividas.c index 51fdb4a31e..753328245d 100644 --- a/libavformat/vividas.c +++ b/libavformat/vividas.c @@ -205,7 +205,7 @@ static uint8_t *read_vblock(AVIOContext *src, uint32_t *size, decode_block(tmp, tmp, 4, key, k2, align); n = get_v(tmp); - if (!n) + if (n < 4) return NULL; buf = av_malloc(n); |