mirror of https://git.ffmpeg.org/ffmpeg.git
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 8bd514d934
)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -436,7 +436,7 @@ static void apply_independent_coupling_fixed(AACContext *ac,
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else {
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for (i = 0; i < len; i++) {
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tmp = (int)(((int64_t)src[i] * c + (int64_t)0x1000000000) >> 37);
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dest[i] += tmp * (1 << shift);
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dest[i] += tmp * (1U << shift);
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}
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}
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}
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