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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-09 02:16:54 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-20 02:05:09 +0200 |
| commit | 79393f4fb140fa026a72373fd62c847cdc0f3fe7 (patch) | |
| tree | 8a7a9e0db7b69783f6563d544d558c2d9589d0d6 | |
| parent | a5feb7e9bd4742f3790e7cff691164899bc0e5c9 (diff) | |
| download | ffmpeg-79393f4fb140fa026a72373fd62c847cdc0f3fe7.tar.gz | |
avcodec/shorten: Sanity check maxnlpc
Fixes OOM
Fixes: 2131/clusterfuzz-testcase-minimized-4718045157130240
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 e77ddd31a8e14bcf5eccd6008d866ae90b4b0d4c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/shorten.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/shorten.c b/libavcodec/shorten.c index 32f808beb4..e4bf2e0035 100644 --- a/libavcodec/shorten.c +++ b/libavcodec/shorten.c @@ -369,6 +369,10 @@ static int read_header(ShortenContext *s) s->blocksize = blocksize; maxnlpc = get_uint(s, LPCQSIZE); + if (maxnlpc > 1024U) { + av_log(s->avctx, AV_LOG_ERROR, "maxnlpc is: %d\n", maxnlpc); + return AVERROR_INVALIDDATA; + } s->nmean = get_uint(s, 0); skip_bytes = get_uint(s, NSKIPSIZE); |