From: Patrik Flykt <patrik.flykt@linux.intel.com>
Date: Fri, 20 Oct 2017 08:59:15 +0000 (+0300)
Subject: sd-radv: Allocate space also for DNSSL iov option (#7144)
X-Git-Tag: v236~308
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6852c0f6b0f7a4ac666e1d174f366d003d31edb3;p=thirdparty%2Fsystemd.git

sd-radv: Allocate space also for DNSSL iov option (#7144)

The iov array needs to hold five entries in addition to the number
of prefixes.
---

diff --git a/src/libsystemd-network/sd-radv.c b/src/libsystemd-network/sd-radv.c
index a3aa5c9c628..e4d12977cd9 100644
--- a/src/libsystemd-network/sd-radv.c
+++ b/src/libsystemd-network/sd-radv.c
@@ -160,8 +160,9 @@ static int radv_send(sd_radv *ra, const struct in6_addr *dst,
                 .nd_opt_mtu_type = ND_OPT_MTU,
                 .nd_opt_mtu_len = 1,
         };
-        /* Reserve iov space for RA header, linkaddr, MTU, N prefixes, RDNSS */
-        struct iovec iov[4 + ra->n_prefixes];
+        /* Reserve iov space for RA header, linkaddr, MTU, N prefixes, RDNSS
+           and DNSSL */
+        struct iovec iov[5 + ra->n_prefixes];
         struct msghdr msg = {
                 .msg_name = &dst_addr,
                 .msg_namelen = sizeof(dst_addr),