From 2e4939f7026f938a1dc81533d020801198562804 Mon Sep 17 00:00:00 2001 From: Casey Schaufler Date: Mon, 7 Nov 2016 19:01:09 -0800 Subject: Smack: ipv6 label match fix The check for a deleted entry in the list of IPv6 host addresses was being performed in the wrong place, leading to most peculiar results in some cases. This puts the check into the right place. Signed-off-by: Casey Schaufler --- security/smack/smack_lsm.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'security') diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index f7ee77c..b2c839f 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -2444,17 +2444,17 @@ static struct smack_known *smack_ipv6host_label(struct sockaddr_in6 *sip) list_for_each_entry_rcu(snp, &smk_net6addr_list, list) { /* + * If the label is NULL the entry has + * been renounced. Ignore it. + */ + if (snp->smk_label == NULL) + continue; + /* * we break after finding the first match because * the list is sorted from longest to shortest mask * so we have found the most specific match */ for (found = 1, i = 0; i < 8; i++) { - /* - * If the label is NULL the entry has - * been renounced. Ignore it. - */ - if (snp->smk_label == NULL) - continue; if ((sap->s6_addr16[i] & snp->smk_mask.s6_addr16[i]) != snp->smk_host.s6_addr16[i]) { found = 0; -- cgit v1.1