Merge "replace incorrect strscpy use in FORTIFY_SOURCE"
diff --git a/include/linux/string.h b/include/linux/string.h
index 4e510df..0463dfb 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -178,17 +178,6 @@
void __write_overflow(void) __compiletime_error("detected write beyond size of object passed as 1st parameter");
#if !defined(__NO_FORTIFY) && defined(__OPTIMIZE__) && defined(CONFIG_FORTIFY_SOURCE)
-__FORTIFY_INLINE char *strcpy(char *p, const char *q)
-{
- size_t p_size = __builtin_object_size(p, 0);
- size_t q_size = __builtin_object_size(q, 0);
- if (p_size == (size_t)-1 && q_size == (size_t)-1)
- return __builtin_strcpy(p, q);
- if (strscpy(p, q, p_size < q_size ? p_size : q_size) < 0)
- fortify_panic(__func__);
- return p;
-}
-
__FORTIFY_INLINE char *strncpy(char *p, const char *q, __kernel_size_t size)
{
size_t p_size = __builtin_object_size(p, 0);
@@ -367,6 +356,18 @@
fortify_panic(__func__);
return __real_kmemdup(p, size, gfp);
}
+
+/* defined after fortified strlen and memcpy to reuse them */
+__FORTIFY_INLINE char *strcpy(char *p, const char *q)
+{
+ size_t p_size = __builtin_object_size(p, 0);
+ size_t q_size = __builtin_object_size(q, 0);
+ if (p_size == (size_t)-1 && q_size == (size_t)-1)
+ return __builtin_strcpy(p, q);
+ memcpy(p, q, strlen(q) + 1);
+ return p;
+}
+
#endif
#endif /* _LINUX_STRING_H_ */