Fix possible access to undefined memory region. (5651ced3) · Commits · 戴 / test

fs/cifs/dns_resolve.c

+5 −4

Original line number	Diff line number	Diff line
		@@ -134,10 +134,6 @@ dns_resolve_server_name_to_ip(const char unc, char *ip_addr)
		rkey = request_key(&key_type_dns_resolver, name, "");
		if (!IS_ERR(rkey)) {
		data = rkey->payload.data;
		cFYI(1, ("%s: resolved: %s to %s", __func__,
		rkey->description,
		*ip_addr
		));
		} else {
		cERROR(1, ("%s: unable to resolve: %s", __func__, name));
		goto out;
		@@ -150,6 +146,11 @@ skip_upcall:
		if (*ip_addr) {
		memcpy(*ip_addr, data, len);
		(*ip_addr)[len] = '\0';
		if (!IS_ERR(rkey))
		cFYI(1, ("%s: resolved: %s to %s", __func__,
		name,
		*ip_addr
		));
		rc = 0;
		} else {
		rc = -ENOMEM;