X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fresolve%2Fresolved-dns-domain.c;h=a41052dde39eee8407436ca0fe64f0df85339b3c;hb=a2ba62c719224a4b47751623ca5e8b0333f49721;hp=27739c1e57342ea654c214973c29643b81bbbb70;hpb=1fa65c593c6d2fbafe9d0f7caa6eb1c8034da2e0;p=elogind.git

diff --git a/src/resolve/resolved-dns-domain.c b/src/resolve/resolved-dns-domain.c
index 27739c1e5..a41052dde 100644
--- a/src/resolve/resolved-dns-domain.c
+++ b/src/resolve/resolved-dns-domain.c
@@ -203,6 +203,9 @@ int dns_name_normalize(const char *s, char **_ret) {
                 n += r;
         }
 
+        if (n > DNS_NAME_MAX)
+                return -EINVAL;
+
         if (!GREEDY_REALLOC(ret, allocated, n + 1))
                 return -ENOMEM;