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| author | Michael Niedermayer <michael@niedermayer.cc> | 2015-12-02 21:16:27 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-12-06 12:40:50 +0100 |
| commit | ce15d773d4f7a3f224342b5eb9ccad93c71421e6 (patch) | |
| tree | 9fcf79827a3ac2fdfac6b1415c03aa75a0b70292 | |
| parent | 516525a1031b303fdb4b179dc870e83a10927504 (diff) | |
| download | ffmpeg-ce15d773d4f7a3f224342b5eb9ccad93c71421e6.tar.gz | |
avcodec/apedec: Check length in long_filter_high_3800()
Fixes out of array read
Fixes: 0a7ff0c1d93da9cef28a315ec91b692a/asan_heap-oob_4a52e5_3604_9c56dbb20e308f4faeef7b35f688521a.ape
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit cd7524fdd13dc8d0cf22e2cfd8300a245542b13a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/apedec.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index 577d0aa260..7893bc320f 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -905,6 +905,9 @@ static void long_filter_high_3800(int32_t *buffer, int order, int shift, int i, j; int32_t dotprod, sign; + if (order >= length) + return; + memset(coeffs, 0, order * sizeof(*coeffs)); for (i = 0; i < order; i++) delay[i] = buffer[i]; |