drm/amdgpu: make amdgpu_mn_get wait for mmap_sem killable

[cascardo/linux.git] / lib / strncpy_from_user.c

diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
index 3384032..33f655e 100644 (file)
--- a/lib/strncpy_from_user.c
+++ b/lib/strncpy_from_user.c
@@ -1,5 +1,6 @@
 #include <linux/compiler.h>
 #include <linux/export.h>
+#include <linux/kasan-checks.h>
 #include <linux/uaccess.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
@@ -109,6 +110,7 @@ long strncpy_from_user(char *dst, const char __user *src, long count)
                unsigned long max = max_addr - src_addr;
                long retval;
 
+               kasan_check_write(dst, count);
                user_access_begin();
                retval = do_strncpy_from_user(dst, src, count, max);
                user_access_end();