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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-06-22 01:18:20 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-06-27 13:52:53 +0200 |
| commit | 35c365f6ef44c37bfc17af45b6e909fff7fa3f0f (patch) | |
| tree | 6cf78b1758728c582a81ed6bf6539ad51566eae5 | |
| parent | dc41504521c7ba93d3ad5e42880f2a4ebd0f66f7 (diff) | |
| download | ffmpeg-35c365f6ef44c37bfc17af45b6e909fff7fa3f0f.tar.gz | |
avcodec/cscd: Check output buffer size for lzo.
Fixes: Timeout
Fixes: 8665/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CSCD_fuzzer-5768442610188288
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
(cherry picked from commit 78167b498f53c36c31105a2bf11e90b03637598f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/cscd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/cscd.c b/libavcodec/cscd.c index 35c4ee08c3..5eb511a565 100644 --- a/libavcodec/cscd.c +++ b/libavcodec/cscd.c @@ -81,7 +81,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, switch ((buf[0] >> 1) & 7) { case 0: { // lzo compression int outlen = c->decomp_size, inlen = buf_size - 2; - if (av_lzo1x_decode(c->decomp_buf, &outlen, &buf[2], &inlen)) { + if (av_lzo1x_decode(c->decomp_buf, &outlen, &buf[2], &inlen) || outlen) { av_log(avctx, AV_LOG_ERROR, "error during lzo decompression\n"); return AVERROR_INVALIDDATA; } |