diff options
| author | Michael Niedermayer | 2019-12-26 00:57:07 +0100 |
|---|---|---|
| committer | Michael Niedermayer | 2019-12-31 19:51:57 +0100 |
| commit | affedbd02770229f189d8cb02967aca59da1d2f0 (patch) | |
| tree | ca386cde00b38a17aac0ee69b949fe0e58b74136 | |
| parent | d7fbabaeb558e4fe48a9a6b358cfc2962418959a (diff) | |
avcodec/cbs_vp9: Check data_size
Fixes: out of array access
Fixes: 19542/clusterfuzz-testcase-minimized-ffmpeg_BSF_TRACE_HEADERS_fuzzer-5659498341728256
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4fa2d5a692f40c398a299acf2c6a20f5b98a3708)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/cbs_vp9.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/cbs_vp9.c b/libavcodec/cbs_vp9.c index 80c9bac6e1..1c83257613 100644 --- a/libavcodec/cbs_vp9.c +++ b/libavcodec/cbs_vp9.c @@ -416,6 +416,9 @@ static int cbs_vp9_split_fragment(CodedBitstreamContext *ctx, uint8_t superframe_header; int err; + if (frag->data_size == 0) + return AVERROR_INVALIDDATA; + // Last byte in the packet. superframe_header = frag->data[frag->data_size - 1]; |