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2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 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

..	..	@@ -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