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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-09 02:16:54 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-17 02:23:53 +0200 |
| commit | 12cf6ace44f667da5be32c68408db19482ee994a (patch) | |
| tree | da81b84a250ced88ea3d5fb8fd222d0e5c55d46a | |
| parent | 39d9308b992a4d90349fd1b001f34b15fdb0ab02 (diff) | |
| download | ffmpeg-12cf6ace44f667da5be32c68408db19482ee994a.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 388d8dee78..a36a77210e 100644 --- a/libavcodec/shorten.c +++ b/libavcodec/shorten.c @@ -436,6 +436,10 @@ 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); |