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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-08-12 00:21:49 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-01-06 11:30:42 +0100 |
| commit | db421282beb7c18f9a380a934338c7868cf1c3e4 (patch) | |
| tree | 9b4041af8298d92098776cab38b5540875b2115b | |
| parent | f4431b6b0cfcefbc798d00502bc1172f93be5926 (diff) | |
| download | ffmpeg-db421282beb7c18f9a380a934338c7868cf1c3e4.tar.gz | |
avcodec/vb: Check input packet size to be large enough to contain flags
Fixes: Timeout (->9sec)
Fixes: 16292/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VB_fuzzer-5747063496638464
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 dea2591d4fbc989ca82bc8a8ad7d16aacdc89af1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/vb.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/vb.c b/libavcodec/vb.c index c6dd6fb456..d9c6b93a73 100644 --- a/libavcodec/vb.c +++ b/libavcodec/vb.c @@ -199,6 +199,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, uint32_t size; int offset = 0; + if (avpkt->size < 2) + return AVERROR_INVALIDDATA; + bytestream2_init(&c->stream, avpkt->data, avpkt->size); if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) |