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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-06-14 17:41:49 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-06-15 23:31:13 +0300 |
| commit | 83a737aa7007af99443b703fde8c6a3a843c5d57 (patch) | |
| tree | f6ddf4081ed5cc15d15c7d2ff880c58aa5b1712f | |
| parent | 2deeb2eaef6fb1a315b2a9af21b3f9fa98d62cb2 (diff) | |
avcodec/aacdec_fixed: Fix undefined integer overflow in apply_independent_coupling_fixed()
Fixes: signed integer overflow: 1195517 * 2048 cannot be represented in type 'int'
Fixes: 8636/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-4695836326887424
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 8bd514d9343746566b123275f8b6d0e9c11ec2b0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/aacdec_fixed.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/aacdec_fixed.c b/libavcodec/aacdec_fixed.c index 167f5b68a1..1bdb93f5bc 100644 --- a/libavcodec/aacdec_fixed.c +++ b/libavcodec/aacdec_fixed.c @@ -436,7 +436,7 @@ static void apply_independent_coupling_fixed(AACContext *ac, else { for (i = 0; i < len; i++) { tmp = (int)(((int64_t)src[i] * c + (int64_t)0x1000000000) >> 37); - dest[i] += tmp * (1 << shift); + dest[i] += tmp * (1U << shift); } } } |