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new 3ec03b847b swscale/rgb2rgb_template: fix signed shift into sign bit
3ec03b847b is described below
commit 3ec03b847bbe47c883c62149f72dd8f8a737a2df
Author: Michael Niedermayer <[email protected]>
AuthorDate: Fri Feb 13 23:40:38 2026 +0100
Commit: michaelni <[email protected]>
CommitDate: Sun Feb 15 19:26:27 2026 +0000
swscale/rgb2rgb_template: fix signed shift into sign bit
Fixes: left shift of 255 by 24 places cannot be represented in type 'int'
Fixes:
471591904/clusterfuzz-testcase-minimized-ffmpeg_SWS_fuzzer-5141341165387776
Found-by: continuous fuzzing process
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
---
libswscale/rgb2rgb_template.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libswscale/rgb2rgb_template.c b/libswscale/rgb2rgb_template.c
index 47a1bb8368..7d4a605043 100644
--- a/libswscale/rgb2rgb_template.c
+++ b/libswscale/rgb2rgb_template.c
@@ -470,11 +470,11 @@ static inline void yuvPlanartouyvy_c(const uint8_t *ysrc,
const uint8_t *usrc,
for (i = 0; i < chromWidth; i++) {
#if HAVE_BIGENDIAN
- *idst++ = (uc[0] << 24) + (yc[0] << 16) +
+ *idst++ = ((unsigned)uc[0] << 24) + (yc[0] << 16) +
(vc[0] << 8) + (yc[1] << 0);
#else
*idst++ = uc[0] + (yc[0] << 8) +
- (vc[0] << 16) + (yc[1] << 24);
+ (vc[0] << 16) + ((unsigned)yc[1] << 24);
#endif
yc += 2;
uc++;
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