From c7cf6f3bd30ce30e74a3eb84ed4c2929e564e137 Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Sat, 7 Nov 2015 10:44:57 +0100 Subject: Fix extension alignment The data extensions in ipset lacked the proper memory alignment and thus could lead to kernel crash on several architectures. Therefore the structures have been reorganized and alignment attributes added where needed. The patch was tested on armv7h by Gerhard Wiesinger and on x86_64, sparc64 by Jozsef Kadlecsik. Reported-by: Gerhard Wiesinger Tested-by: Gerhard Wiesinger Tested-by: Jozsef Kadlecsik Signed-off-by: Jozsef Kadlecsik --- kernel/net/netfilter/ipset/ip_set_list_set.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'kernel/net/netfilter/ipset/ip_set_list_set.c') diff --git a/kernel/net/netfilter/ipset/ip_set_list_set.c b/kernel/net/netfilter/ipset/ip_set_list_set.c index 0f9195f..a43b335 100644 --- a/kernel/net/netfilter/ipset/ip_set_list_set.c +++ b/kernel/net/netfilter/ipset/ip_set_list_set.c @@ -31,7 +31,7 @@ struct set_elem { struct rcu_head rcu; struct list_head list; ip_set_id_t id; -}; +} __aligned(__alignof__(u64)); struct set_adt_elem { ip_set_id_t id; @@ -634,7 +634,8 @@ list_set_create(struct net *net, struct ip_set *set, struct nlattr *tb[], size = IP_SET_LIST_MIN_SIZE; set->variant = &set_variant; - set->dsize = ip_set_elem_len(set, tb, sizeof(struct set_elem)); + set->dsize = ip_set_elem_len(set, tb, sizeof(struct set_elem), + __alignof__(struct set_elem)); if (!init_list_set(net, set, size)) return -ENOMEM; if (tb[IPSET_ATTR_TIMEOUT]) { -- cgit v1.2.3