kernel/fs/btrfs/rcu-string.h
.. .. @@ -18,7 +18,11 @@ 18 18 (len * sizeof(char)), mask); 19 19 if (!ret) 20 20 return ret; 21 - strncpy(ret->str, src, len);21 + /* Warn if the source got unexpectedly truncated. */22 + if (WARN_ON(strscpy(ret->str, src, len) < 0)) {23 + kfree(ret);24 + return NULL;25 + }22 26 return ret; 23 27 } 24 28