[FFmpeg-devel] [PATCH] avutil/cast5: Avoid undefined shift of uint32_t by 32 places

Andreas Rheinhardt andreas.rheinhardt at outlook.com
Tue Nov 8 02:00:20 EET 2022


Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>
---
 libavutil/cast5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavutil/cast5.c b/libavutil/cast5.c
index 0bf8ae9929..e1d2c5cadd 100644
--- a/libavutil/cast5.c
+++ b/libavutil/cast5.c
@@ -32,7 +32,7 @@
 #define IC(x) (((x) >> 8) & 0xff)
 #define ID(x) ((x) & 0xff)
 
-#define LR(x, c) (((x) << (c)) | ((x) >> (32 - (c))))
+#define LR(x, c) (((x) << (c)) | ((x) >> ((32 - (c)) & 31)))
 
 #define F3(l, r, i)                                                                                  \
     do {                                                                                             \
-- 
2.34.1



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