Re: [PATCH 3.2 0/4] 3.2.88-rc1 review

[Ben Hutchings <ben@decadent.org.uk>]

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This is the combined diff for 3.2.88-rc1 relative to 3.2.87.

Ben.

-- 
Ben Hutchings
It is impossible to make anything foolproof because fools are so
ingenious.

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diff --git a/Makefile b/Makefile
index 74390f97c6e5..b352b1dacf4e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 2
-SUBLEVEL = 87
-EXTRAVERSION =
+SUBLEVEL = 88
+EXTRAVERSION = -rc1
 NAME = Saber-toothed Squirrel
 
 # *DOCUMENTATION*
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 998efcee7201..d6e6cafdb2c9 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -989,7 +989,7 @@ struct page *follow_trans_huge_pmd(struct mm_struct *mm,
 	VM_BUG_ON(!PageHead(page));
 
 	if (flags & FOLL_WRITE && !can_follow_write_pmd(*pmd, page, flags))
-		goto out;
+		return NULL;
 
 	if (flags & FOLL_TOUCH) {
 		pmd_t _pmd;
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index b3648bbef0da..a6e1eeb02267 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -1009,7 +1009,8 @@ e_inval:
  */
 int ip_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
-	if (!(inet_sk(sk)->cmsg_flags & IP_CMSG_PKTINFO))
+	if (!(inet_sk(sk)->cmsg_flags & IP_CMSG_PKTINFO) &&
+	    !IPCB(skb)->opt.optlen)
 		skb_dst_drop(skb);
 	return sock_queue_rcv_skb(sk, skb);
 }
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index eccc008908f4..67cc3e79ec27 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -257,8 +257,6 @@ static int l2tp_ip_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 	int ret;
 	int chk_addr_ret;
 
-	if (!sock_flag(sk, SOCK_ZAPPED))
-		return -EINVAL;
 	if (addr_len < sizeof(struct sockaddr_l2tpip))
 		return -EINVAL;
 	if (addr->l2tp_family != AF_INET)
@@ -272,6 +270,9 @@ static int l2tp_ip_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 	read_unlock_bh(&l2tp_ip_lock);
 
 	lock_sock(sk);
+	if (!sock_flag(sk, SOCK_ZAPPED))
+		goto out;
+
 	if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_l2tpip))
 		goto out;
 
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 37a7f3b28852..8f31d5f6cda5 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -336,6 +336,9 @@ key_ref_t keyring_search_aux(key_ref_t keyring_ref,
 	if (keyring->type != &key_type_keyring)
 		goto error;
 
+	if (!match)
+		return ERR_PTR(-ENOKEY);
+
 	rcu_read_lock();
 
 	now = current_kernel_time();
@@ -484,9 +487,6 @@ key_ref_t keyring_search(key_ref_t keyring,
 			 struct key_type *type,
 			 const char *description)
 {
-	if (!type->match)
-		return ERR_PTR(-ENOKEY);
-
 	return keyring_search_aux(keyring, current->cred,
 				  type, description, type->match, false);
 }

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