From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 3 Nov 2020 17:06:47 +0000 (+0100)
Subject: resolved: check return value of memdup() correctly for OOM
X-Git-Tag: v247-rc2~29^2~4
X-Git-Url: http://git-history.diyao.me/?a=commitdiff_plain;h=a63a1252b501f6c8b5a011825372977710e88e72;p=systemd%2F.git

resolved: check return value of memdup() correctly for OOM
---

diff --git a/src/resolve/resolved-dns-rr.c b/src/resolve/resolved-dns-rr.c
index 9ca7ad96fd..2db7ec4a0a 100644
--- a/src/resolve/resolved-dns-rr.c
+++ b/src/resolve/resolved-dns-rr.c
@@ -1650,7 +1650,7 @@ DnsResourceRecord *dns_resource_record_copy(DnsResourceRecord *rr) {
                         return NULL;
                 copy->nsec3.salt_size = rr->nsec3.salt_size;
                 copy->nsec3.next_hashed_name = memdup(rr->nsec3.next_hashed_name, rr->nsec3.next_hashed_name_size);
-                if (!copy->nsec3.next_hashed_name_size)
+                if (!copy->nsec3.next_hashed_name)
                         return NULL;
                 copy->nsec3.next_hashed_name_size = rr->nsec3.next_hashed_name_size;
                 copy->nsec3.types = bitmap_copy(rr->nsec3.types);