From: Sabrina Dubroca <sd@queasysnail.net>
Subject: net/ipv6: reserve room for IFLA_INET6_ADDR_GEN_MODE
Patch-mainline: v4.19-rc1
Git-commit: bdd72f41333d9f61a22e4c4494e95782e9731fdb
References: git-fixes
inet6_ifla6_size() is called to check how much space is needed by
inet6_fill_link_af() and inet6_fill_ifinfo(), both of which include
the IFLA_INET6_ADDR_GEN_MODE attribute. Reserve some room for it.
Fixes: bc91b0f07ada ("ipv6: addrconf: implement address generation modes")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Denis Kirjanov <dkirjanov@suse.com>
---
net/ipv6/addrconf.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 8a8bb3eb9b1e..bbe616f991e9 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -5107,7 +5107,9 @@ static inline size_t inet6_ifla6_size(void)
+ nla_total_size(DEVCONF_MAX * 4) /* IFLA_INET6_CONF */
+ nla_total_size(IPSTATS_MIB_MAX * 8) /* IFLA_INET6_STATS */
+ nla_total_size(ICMP6_MIB_MAX * 8) /* IFLA_INET6_ICMP6STATS */
- + nla_total_size(sizeof(struct in6_addr)); /* IFLA_INET6_TOKEN */
+ + nla_total_size(sizeof(struct in6_addr)) /* IFLA_INET6_TOKEN */
+ + nla_total_size(1) /* IFLA_INET6_ADDR_GEN_MODE */
+ + 0;
}
static inline size_t inet6_if_nlmsg_size(void)
--
2.12.3