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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-17 21:51:06 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-19 20:12:32 +0200 |
| commit | db18f29b33a060b3ce0fc7ac7d215aeb3506c0ae (patch) | |
| tree | 0986ffb16b0741994b5232c55dd369977e4ac8cb | |
| parent | 71b4d16bca99b5feee33ea9f4eaf2dc6e96f1ed3 (diff) | |
avcodec/siren: Check index for catergory5
Fixes: out of array access
Fixes: 38603/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MSNSIREN_fuzzer-5741847809490944.fuzz
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/siren.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/siren.c b/libavcodec/siren.c index 2161b29a2c..7f2b467860 100644 --- a/libavcodec/siren.c +++ b/libavcodec/siren.c @@ -648,6 +648,10 @@ static int decode_vector(SirenContext *s, int number_of_regions, } coefs_ptr++; } + if (i >= FF_ARRAY_ELEMS(noise_category5)) { + error = 1; + break; + } noise = decoder_standard_deviation[region] * noise_category5[i]; } else |