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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-17 23:57:26 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-09 16:02:43 +0100 |
| commit | 17603094d57faf95bee00d557fe6de84a05352ef (patch) | |
| tree | 0b39deed4d151dc3a85e30b0ec141ee1c4f75c6d | |
| parent | df498cf544fd4690e5a246925e4de1125b57795b (diff) | |
| download | ffmpeg-17603094d57faf95bee00d557fe6de84a05352ef.tar.gz | |
avcodec/rasc: Check input size in decode_fint()
Fixes: Timeout (11sec -> 42ms)
Fixes: 18287/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RASC_fuzzer-5637866331308032
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/rasc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/rasc.c b/libavcodec/rasc.c index 21fc43f325..cdf20a6db9 100644 --- a/libavcodec/rasc.c +++ b/libavcodec/rasc.c @@ -124,6 +124,8 @@ static int decode_fint(AVCodecContext *avctx, clear_plane(avctx, s->frame1); return 0; } + if (bytestream2_get_bytes_left(gb) < 72) + return AVERROR_INVALIDDATA; bytestream2_skip(gb, 8); w = bytestream2_get_le32(gb); |