[XFRM]: Fix crash introduced by struct dst_entry reordering XFRM expects xfrm_dst->u.next to be same pointer as dst->next, which was broken by the dst_entry reordering in commit 1e19e02c~, causing an oops in xfrm_bundle_ok when walking the bundle upwards. Kill xfrm_dst->u.next and change the only user to use dst->next instead. Signed-off-by: Patrick McHardy --- commit 20c2fee8cc562817f11752e1d87350d5994fa098 tree f42318b847e962aa637136e94722a688c231111a parent 308ac1b6249226730b70fcf7c13a289c27ce2bf3 author Patrick McHardy Tue, 17 Jul 2007 18:11:29 +0200 committer Patrick McHardy Tue, 17 Jul 2007 18:11:29 +0200 include/net/xfrm.h | 1 - net/xfrm/xfrm_policy.c | 2 +- 2 files changed, 1 insertions(+), 2 deletions(-) diff --git a/include/net/xfrm.h b/include/net/xfrm.h index ae959e9..a5f80bf 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -585,7 +585,6 @@ static inline int xfrm_sec_ctx_match(struct xfrm_sec_ctx *s1, struct xfrm_sec_ct struct xfrm_dst { union { - struct xfrm_dst *next; struct dst_entry dst; struct rtable rt; struct rt6_info rt6; diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 157bfbd..b48f06f 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -2141,7 +2141,7 @@ int xfrm_bundle_ok(struct xfrm_policy *pol, struct xfrm_dst *first, if (last == first) break; - last = last->u.next; + last = (struct xfrm_dst *)last->u.dst.next; last->child_mtu_cached = mtu; }