diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fortify-string.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/fortify-string.h b/include/linux/fortify-string.h index 3b401fa0f374..fce2fb2fc962 100644 --- a/include/linux/fortify-string.h +++ b/include/linux/fortify-string.h @@ -19,7 +19,8 @@ void __write_overflow_field(size_t avail, size_t wanted) __compiletime_warning(" unsigned char *__p = (unsigned char *)(p); \ size_t __ret = (size_t)-1; \ size_t __p_size = __builtin_object_size(p, 1); \ - if (__p_size != (size_t)-1) { \ + if (__p_size != (size_t)-1 && \ + __builtin_constant_p(*__p)) { \ size_t __p_len = __p_size - 1; \ if (__builtin_constant_p(__p[__p_len]) && \ __p[__p_len] == '\0') \ |