diff options
| -rw-r--r-- | src/resolve/resolved-dns-domain.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/resolve/resolved-dns-domain.c b/src/resolve/resolved-dns-domain.c index 33ae2610e1..27739c1e57 100644 --- a/src/resolve/resolved-dns-domain.c +++ b/src/resolve/resolved-dns-domain.c @@ -45,6 +45,9 @@ int dns_label_unescape(const char **name, char *dest, size_t sz) { if (sz <= 0) return -ENOSPC; + if (r >= DNS_LABEL_MAX) + return -EINVAL; + if (*n == '\\') { /* Escaped character */ @@ -114,6 +117,9 @@ int dns_label_escape(const char *p, size_t l, char **ret) { assert(p); assert(ret); + if (l > DNS_LABEL_MAX) + return -EINVAL; + s = malloc(l * 4 + 1); if (!s) return -ENOMEM; |