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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-09-22 18:14:07 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-09-24 00:49:30 +0200 |
| commit | 0f36ad514c45b8267b661e745607411d9a5b42cb (patch) | |
| tree | 4c622ce8fdce831efda9940662b5ba2508d0ee44 | |
| parent | 3b5945b14654a04cd99cf3f618913c9b25ff79cd (diff) | |
avcodec/prosumer: Check remaining space in put byte context
Fixes: Timeout
Fixes: 10053/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PROSUMER_fuzzer-5636993883570176
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/prosumer.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/prosumer.c b/libavcodec/prosumer.c index 2420dd5f12..6e98677b55 100644 --- a/libavcodec/prosumer.c +++ b/libavcodec/prosumer.c @@ -57,6 +57,8 @@ static int decompress(GetByteContext *gb, int size, PutByteContext *pb, const ui b = lut[2 * idx]; while (1) { + if (bytestream2_get_bytes_left_p(pb) <= 0) + return 0; if (((b & 0xFF00u) != 0x8000u) || (b & 0xFFu)) { if ((b & 0xFF00u) != 0x8000u) { bytestream2_put_le16(pb, b); |