Linux 3.2.88

Linux 3.2.88

[Ben Hutchings]

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I'm announcing the release of the 3.2.88 kernel.

All users of the 3.2 kernel series should upgrade.

The updated 3.2.y git tree can be found at:
        https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-3.2.y
and can be browsed at the normal kernel.org git web browser:
        https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git

The diff from 3.2.87 is attached to this message.

Ben.

------------

 Makefile                | 2 +-
 mm/huge_memory.c        | 2 +-
 net/ipv4/ip_sockglue.c  | 3 ++-
 net/l2tp/l2tp_ip.c      | 5 +++--
 security/keys/keyring.c | 6 +++---
 5 files changed, 10 insertions(+), 8 deletions(-)

Ben Hutchings (2):
      keys: Guard against null match function in keyring_search_aux()
      Linux 3.2.88

Eric Dumazet (1):
      ipv4: keep skb->dst around in presence of IP options

Guillaume Nault (1):
      l2tp: fix racy SOCK_ZAPPED flag check in l2tp_ip{,6}_bind()

Michal Hocko (1):
      mm/huge_memory.c: fix up "mm/huge_memory.c: respect FOLL_FORCE/FOLL_COW for thp" backport


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diff --git a/Makefile b/Makefile
index 74390f97c6e5..4507a9f653f2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 3
 PATCHLEVEL = 2
-SUBLEVEL = 87
+SUBLEVEL = 88
 EXTRAVERSION =
 NAME = Saber-toothed Squirrel
 
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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