diff options
Diffstat (limited to 'arch/arm64/include/asm/uaccess.h')
| -rw-r--r-- | arch/arm64/include/asm/uaccess.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h index 92848b00e3cd..c47257c91b77 100644 --- a/arch/arm64/include/asm/uaccess.h +++ b/arch/arm64/include/asm/uaccess.h @@ -21,6 +21,7 @@ /* * User space memory access functions */ +#include <linux/kasan-checks.h> #include <linux/string.h> #include <linux/thread_info.h> @@ -263,18 +264,22 @@ extern unsigned long __must_check __clear_user(void __user *addr, unsigned long static inline unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n) { + kasan_check_write(to, n); check_object_size(to, n, false); return __arch_copy_from_user(to, from, n); } static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n) { + kasan_check_read(from, n); check_object_size(from, n, true); return __arch_copy_to_user(to, from, n); } static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n) { + kasan_check_write(to, n); + if (access_ok(VERIFY_READ, from, n)) { check_object_size(to, n, false); n = __arch_copy_from_user(to, from, n); @@ -285,6 +290,8 @@ static inline unsigned long __must_check copy_from_user(void *to, const void __u static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n) { + kasan_check_read(from, n); + if (access_ok(VERIFY_WRITE, to, n)) { check_object_size(from, n, true); n = __arch_copy_to_user(to, from, n); |