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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-03-12 00:05:04 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-07-10 01:18:52 +0200 |
| commit | 704bebc91fa573dd770e49b805e1a9d7f68fea6f (patch) | |
| tree | 8cb5a8986d618744555053edd816cb92f62b0376 | |
| parent | eb8654610927dc3dcacf777b0a8bd52ce6c02431 (diff) | |
| download | ffmpeg-704bebc91fa573dd770e49b805e1a9d7f68fea6f.tar.gz | |
avcodec/cscd: Error out when LZ* decompression fails
Fixes: Timeout
Fixes: 6304/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CSCD_fuzzer-5754772461191168
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d52be5d4e91871a22dac70af3e0ab429e95a2d10)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/cscd.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/libavcodec/cscd.c b/libavcodec/cscd.c index 278093fdb3..8cb193de56 100644 --- a/libavcodec/cscd.c +++ b/libavcodec/cscd.c @@ -81,15 +81,19 @@ 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)) { av_log(avctx, AV_LOG_ERROR, "error during lzo decompression\n"); + return AVERROR_INVALIDDATA; + } break; } case 1: { // zlib compression #if CONFIG_ZLIB unsigned long dlen = c->decomp_size; - if (uncompress(c->decomp_buf, &dlen, &buf[2], buf_size - 2) != Z_OK) + if (uncompress(c->decomp_buf, &dlen, &buf[2], buf_size - 2) != Z_OK) { av_log(avctx, AV_LOG_ERROR, "error during zlib decompression\n"); + return AVERROR_INVALIDDATA; + } break; #else av_log(avctx, AV_LOG_ERROR, "compiled without zlib support\n"); |