From 93e0265e27e6dd567812a8661988109421c5447a Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 18 Jun 2024 15:48:26 +0200 Subject: [PATCH] avcodec/proresenc_kostya: use unsigned alpha for rotation 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 --- 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 8b91ca1a98..fe8cc5f0fd 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;