[FFmpeg-devel] [PATCH 7/7] avcodec/proresenc_kostya: use unsigned alpha for rotation
Michael Niedermayer
michael at niedermayer.cc
Tue Jun 18 16:48:26 EEST 2024
Fixes: left shift of negative value -208
Fixes: 69073/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PRORES_KS_fuzzer-4745020002336768
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
libavcodec/proresenc_kostya.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/proresenc_kostya.c b/libavcodec/proresenc_kostya.c
index 8b91ca1a98a..fe8cc5f0fda 100644
--- a/libavcodec/proresenc_kostya.c
+++ b/libavcodec/proresenc_kostya.c
@@ -343,7 +343,7 @@ static void get_slice_data(ProresContext *ctx, const uint16_t *src,
static void get_alpha_data(ProresContext *ctx, const uint16_t *src,
ptrdiff_t linesize, int x, int y, int w, int h,
- int16_t *blocks, int mbs_per_slice, int abits)
+ uint16_t *blocks, int mbs_per_slice, int abits)
{
const int slice_width = 16 * mbs_per_slice;
int i, j, copy_w, copy_h;
--
2.45.2
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