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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-07-13 19:57:21 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-08-04 21:16:28 +0200 |
| commit | c9322598f4e9d45d5a1c2451e056c428213907b6 (patch) | |
| tree | a52a921eb64442aaa7d91ff10db8ba99cea68a34 /libavformat | |
| parent | 4f57240859fbcfb4de4303c7643776bb1b566c46 (diff) | |
| download | ffmpeg-c9322598f4e9d45d5a1c2451e056c428213907b6.tar.gz | |
avformat/vividas: Check buffer size before allocation
Fixes: out of array access
Fixes: 15365/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5716153105645568
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 c3ef24d9baf63f8c8794dfb2ef7192a64b586526)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/vividas.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/vividas.c b/libavformat/vividas.c index c0d39f0a6f..184d24f374 100644 --- a/libavformat/vividas.c +++ b/libavformat/vividas.c @@ -251,6 +251,9 @@ static uint8_t *read_sb_block(AVIOContext *src, unsigned *size, *key = tmpkey; } + if (n < 8) + return NULL; + buf = av_malloc(n); if (!buf) return NULL; |