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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-09-19 21:57:09 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-09-24 15:37:15 +0200 |
| commit | f27c8b04d3059fa538db8f2db6503cbb586eb3ad (patch) | |
| tree | 5459a440f4a97cd0a90621b0545d4aaf8adb67d0 | |
| parent | fde8637fda8e5ac4ccfa4b137a7467e16cd631b6 (diff) | |
| download | ffmpeg-f27c8b04d3059fa538db8f2db6503cbb586eb3ad.tar.gz | |
avcodec/jfdctint_template: use unsigned z* in row_fdct()
Fixes: signed integer overflow: 856827136 + 2123580416 cannot be represented in type 'int'
Fixes: 70772/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PRORES_KS_fuzzer-5180569961431040
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/jfdctint_template.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/jfdctint_template.c b/libavcodec/jfdctint_template.c index aa2680132e..58827b677e 100644 --- a/libavcodec/jfdctint_template.c +++ b/libavcodec/jfdctint_template.c @@ -183,7 +183,7 @@ static av_always_inline void FUNC(row_fdct)(int16_t *data) { int tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; int tmp10, tmp11, tmp12, tmp13; - int z1, z2, z3, z4, z5; + unsigned z1, z2, z3, z4, z5; int16_t *dataptr; int ctr; |