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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-07-30 23:04:08 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-08 21:31:50 +0200 |
| commit | f25834ab0786308824bd4b4a082dfaeda0384449 (patch) | |
| tree | 8eef4eb63e6721f2adc8ff44cb3db4810a6fb3d8 | |
| parent | 725a0446b409d20a8fb762e5804b170808a52001 (diff) | |
| download | ffmpeg-f25834ab0786308824bd4b4a082dfaeda0384449.tar.gz | |
avcodec/sbrdsp_fixed: Fix negation overflow in sbr_neg_odd_64_c()
Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: 35593/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5182217725804544
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 8f2856a1daa4e3d5767b6efe7a70ec86926dba47)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/sbrdsp_fixed.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/sbrdsp_fixed.c b/libavcodec/sbrdsp_fixed.c index 91fa664c08..43fcc90ae5 100644 --- a/libavcodec/sbrdsp_fixed.c +++ b/libavcodec/sbrdsp_fixed.c @@ -87,7 +87,7 @@ static void sbr_neg_odd_64_c(int *x) { int i; for (i = 1; i < 64; i += 2) - x[i] = -x[i]; + x[i] = -(unsigned)x[i]; } static void sbr_qmf_pre_shuffle_c(int *z) |