diff options
Diffstat (limited to 'arch/x86/include/asm/uaccess_64.h')
| -rw-r--r-- | arch/x86/include/asm/uaccess_64.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h index 59ea54af505e..339883729065 100644 --- a/arch/x86/include/asm/uaccess_64.h +++ b/arch/x86/include/asm/uaccess_64.h @@ -27,6 +27,7 @@ copy_user_generic(void *to, const void *from, unsigned len) { unsigned ret; + stac(); /* * If CPU has FSRM feature, use 'rep movs'. * Otherwise, use copy_user_generic_unrolled. @@ -38,6 +39,7 @@ copy_user_generic(void *to, const void *from, unsigned len) "=d" (len)), "1" (to), "2" (from), "3" (len) : "memory", "rcx", "r8", "r9", "r10", "r11"); + clac(); return ret; } @@ -64,8 +66,12 @@ static inline int __copy_from_user_inatomic_nocache(void *dst, const void __user *src, unsigned size) { + long ret; kasan_check_write(dst, size); - return __copy_user_nocache(dst, src, size, 0); + stac(); + ret = __copy_user_nocache(dst, src, size, 0); + clac(); + return ret; } static inline int |