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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-01 01:06:35 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-20 20:57:51 +0300 |
| commit | 8c693104779830028bd5f76bf32a93e059c04d2c (patch) | |
| tree | 2f6c4690d588ad6fd31f1fbbf4e0d7f1875056f4 /libavcodec/aliaspixdec.c | |
| parent | 7916b6863caec55d7e64758a1bfe436834f2faf6 (diff) | |
avcodec/aliaspixdec: Check input size against minimal picture size
Fixes: Timeout (15sec -> 72ms)
Fixes: 17774/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALIAS_PIX_fuzzer-5193929107963904
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 'libavcodec/aliaspixdec.c')
| -rw-r--r-- | libavcodec/aliaspixdec.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/aliaspixdec.c b/libavcodec/aliaspixdec.c index 087b18fb91..def7e17c0f 100644 --- a/libavcodec/aliaspixdec.c +++ b/libavcodec/aliaspixdec.c @@ -62,6 +62,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, if (ret < 0) return ret; + if (bytestream2_get_bytes_left(&gb) < width*height / 255) + return AVERROR_INVALIDDATA; + ret = ff_get_buffer(avctx, f, 0); if (ret < 0) return ret; |