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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-20 23:56:43 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-03-08 22:08:49 +0100 |
| commit | 633924539aae73714facf31aa7001d01e8be48a1 (patch) | |
| tree | 855523edeff6ce316a18889e3d450547f4a6bcdd /libavcodec/aacdec_template.c | |
| parent | 1957095e808b80cbe607347a6f23207d6318a48d (diff) | |
avcodec/aacdec_template: Avoid undefined negation in imdct_and_windowing_eld()
Fixes: negation of -2147483648 cannot be represented in type 'INTFLOAT' (aka 'int'); cast to an unsigned type to negate this value to itself
Fixes: 29057/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5642758933053440
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/aacdec_template.c')
| -rw-r--r-- | libavcodec/aacdec_template.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/aacdec_template.c b/libavcodec/aacdec_template.c index aa89f7cbb8..7b53b27616 100644 --- a/libavcodec/aacdec_template.c +++ b/libavcodec/aacdec_template.c @@ -2905,7 +2905,7 @@ static void imdct_and_windowing_ld(AACContext *ac, SingleChannelElement *sce) static void imdct_and_windowing_eld(AACContext *ac, SingleChannelElement *sce) { - INTFLOAT *in = sce->coeffs; + UINTFLOAT *in = sce->coeffs; INTFLOAT *out = sce->ret; INTFLOAT *saved = sce->saved; INTFLOAT *buf = ac->buf_mdct; |