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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-01-13 01:01:36 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-01-17 12:54:29 +0100 |
| commit | 4d42d82563d806b5610c0c91497e24ef7f37d4cf (patch) | |
| tree | 4d4dba2dad2c7164bca4d0a28286a3dae29d4fba | |
| parent | faf0afb5d937f480186dc4d3e5afc554e9ad0805 (diff) | |
| download | ffmpeg-4d42d82563d806b5610c0c91497e24ef7f37d4cf.tar.gz | |
avcodec/012v: Order operations for odd size handling
Fixes: out of array access
Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ZERO12V_fuzzer-6714182078955520.fuzz
Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ZERO12V_fuzzer-6698145212137472.fuzz
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/012v.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/012v.c b/libavcodec/012v.c index 2d89a86b98..f0197cd8f9 100644 --- a/libavcodec/012v.c +++ b/libavcodec/012v.c @@ -131,8 +131,8 @@ static int zero12v_decode_frame(AVCodecContext *avctx, AVFrame *pic, u = x/2 + (uint16_t *)(pic->data[1] + line * pic->linesize[1]); v = x/2 + (uint16_t *)(pic->data[2] + line * pic->linesize[2]); memcpy(y, y_temp, sizeof(*y) * (width - x)); - memcpy(u, u_temp, sizeof(*u) * (width - x + 1) / 2); - memcpy(v, v_temp, sizeof(*v) * (width - x + 1) / 2); + memcpy(u, u_temp, sizeof(*u) * ((width - x + 1) / 2)); + memcpy(v, v_temp, sizeof(*v) * ((width - x + 1) / 2)); } line_end += stride; |