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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-07 16:14:32 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-25 00:22:33 +0200 |
| commit | b63fbc19c09d0b42da4f83c21fcf362d6ed7c545 (patch) | |
| tree | 878646fd23df43ceb615cbb389a4877a05bfcda3 | |
| parent | 8caa7166676eaab89dd5cab5ab4ec506b00db70d (diff) | |
| download | ffmpeg-b63fbc19c09d0b42da4f83c21fcf362d6ed7c545.tar.gz | |
avcodec/qdrw: Check input for header/skiped space before get_buffer()
Fixes: Timeout (21sec -> 0.8sec)
Fixes: 17990/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QDRAW_fuzzer-5200374436200448
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/qdrw.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/qdrw.c b/libavcodec/qdrw.c index 32ba410968..65279c9805 100644 --- a/libavcodec/qdrw.c +++ b/libavcodec/qdrw.c @@ -455,6 +455,8 @@ static int decode_frame(AVCodecContext *avctx, avpriv_request_sample(avctx, "Pack type %d", pack_type); return AVERROR_PATCHWELCOME; } + if (bytestream2_get_bytes_left(&gbc) < 30) + return AVERROR_INVALIDDATA; if ((ret = ff_get_buffer(avctx, p, 0)) < 0) return ret; |