Unfortunately we can't rely on nf_hook_state->sk being the proper
originating socket so revert to using skb_to_full_sk(skb).
Fixes: 1d1e1ded1356 ("1d1e1ded13568be81a0e19d228e310a48997bec8")
Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
Suggested-by: Florian Westphal <fw@xxxxxxxxx>
Signed-off-by: Paul Moore <paul@xxxxxxxxxxxxxx>
---
security/selinux/hooks.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index b4a1bde20261..6f08cd2fc6a8 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -5778,9 +5778,9 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
struct lsm_network_audit net = {0,};
u8 proto;
- if (state->sk == NULL)
- return NF_ACCEPT;
sk = skb_to_full_sk(skb);
+ if (sk == NULL)
+ return NF_ACCEPT;
sksec = sk->sk_security;
ad.type = LSM_AUDIT_DATA_NET;
