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Date: Thu, 22 Mar 2007 12:35:39 -0600 From: Joy Latten <latten@...tin.ibm.com> To: netdev@...r.kernel.org Cc: davem@...emloft.net, jmorris@...ei.org, vyekkirala@...stedcs.com Subject: [PATCH]: Add security check before flushing SAD/SPD Within selinux we check for authorization before deleting entries from SAD and SPD. We are not checking for authorization when flushing the SPD and the SAD. It was perhaps missed in original patch. This patch adds security check when flushing entries from SAD and SPD. Please let me know if this patch is ok. It was built against linux-2.6.21-rc4-git5. I have also tested it. Joy Signed-off-by: Joy Latten<latten@...tin.ibm.com> diff -urpN linux-2.6.20.orig/net/xfrm/xfrm_policy.c linux-2.6.20/net/xfrm/xfrm_policy.c --- linux-2.6.20.orig/net/xfrm/xfrm_policy.c 2007-03-21 14:25:51.000000000 -0500 +++ linux-2.6.20/net/xfrm/xfrm_policy.c 2007-03-21 14:30:59.000000000 -0500 @@ -829,6 +829,8 @@ void xfrm_policy_flush(u8 type, struct x &xfrm_policy_inexact[dir], bydst) { if (pol->type != type) continue; + if (security_xfrm_policy_delete(pol)) + continue; hlist_del(&pol->bydst); hlist_del(&pol->byidx); write_unlock_bh(&xfrm_policy_lock); @@ -850,6 +852,8 @@ void xfrm_policy_flush(u8 type, struct x bydst) { if (pol->type != type) continue; + if (security_xfrm_policy_delete(pol)) + continue; hlist_del(&pol->bydst); hlist_del(&pol->byidx); write_unlock_bh(&xfrm_policy_lock); diff -urpN linux-2.6.20.orig/net/xfrm/xfrm_state.c linux-2.6.20/net/xfrm/xfrm_state.c --- linux-2.6.20.orig/net/xfrm/xfrm_state.c 2007-03-21 14:25:51.000000000 -0500 +++ linux-2.6.20/net/xfrm/xfrm_state.c 2007-03-21 14:27:48.000000000 -0500 @@ -400,7 +400,8 @@ void xfrm_state_flush(u8 proto, struct x restart: hlist_for_each_entry(x, entry, xfrm_state_bydst+i, bydst) { if (!xfrm_state_kern(x) && - xfrm_id_proto_match(x->id.proto, proto)) { + xfrm_id_proto_match(x->id.proto, proto) && + !security_xfrm_state_delete(x)) { xfrm_state_hold(x); spin_unlock_bh(&xfrm_state_lock); - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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