Linux 3.0.26

Linux 3.0.26

[Greg KH]

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I'm announcing the release of the 3.0.26 kernel.

All users of the 3.0 kernel series must upgrade.

The updated 3.0.y git tree can be found at:
        git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-3.0.y
and can be browsed at the normal kernel.org git web browser:
        http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary

thanks,

greg k-h

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

 Makefile                                     |    2 -
 arch/powerpc/platforms/powermac/smp.c        |    2 -
 drivers/net/wireless/iwlegacy/iwl-3945.c     |    7 +++---
 drivers/net/wireless/iwlegacy/iwl3945-base.c |    2 -
 fs/afs/internal.h                            |    2 -
 fs/afs/rxrpc.c                               |    3 ++
 fs/nilfs2/the_nilfs.c                        |    1 
 net/ipv4/syncookies.c                        |   30 ++++++++++++++-------------
 net/ipv4/tcp_ipv4.c                          |   10 ++++++---
 net/ipv6/mcast.c                             |    1 
 tools/perf/util/sort.c                       |    3 ++
 11 files changed, 38 insertions(+), 25 deletions(-)

Anton Blanchard (3):
      afs: Read of file returns EBADMSG
      afs: Remote abort can cause BUG in rxrpc code
      perf tools: Incorrect use of snprintf results in SEGV

Benjamin Herrenschmidt (1):
      powerpc/pmac: Fix SMP kernels on pre-core99 UP machines

Eric Dumazet (1):
      tcp: fix syncookie regression

Greg Kroah-Hartman (1):
      Linux 3.0.26

RongQing.Li (1):
      ipv6: Don't dev_hold(dev) in ip6_mc_find_dev_rcu.

Ryusuke Konishi (1):
      nilfs2: fix NULL pointer dereference in nilfs_load_super_block()

Stanislaw Gruszka (1):
      iwl3945: fix possible il->txq NULL pointer dereference in delayed works


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Re: Linux 3.0.26

[Greg KH]

diff --git a/Makefile b/Makefile
index 0fb2b58..a04eef4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 3
 PATCHLEVEL = 0
-SUBLEVEL = 25
+SUBLEVEL = 26
 EXTRAVERSION =
 NAME = Sneaky Weasel
 
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index db092d7..53a6be7 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -414,7 +414,7 @@ static struct irqaction psurge_irqaction = {
 
 static void __init smp_psurge_setup_cpu(int cpu_nr)
 {
-	if (cpu_nr != 0)
+	if (cpu_nr != 0 || !psurge_start)
 		return;
 
 	/* reset the entry point so if we get another intr we won't
diff --git a/drivers/net/wireless/iwlegacy/iwl-3945.c b/drivers/net/wireless/iwlegacy/iwl-3945.c
index dcc1552..effeabb 100644
--- a/drivers/net/wireless/iwlegacy/iwl-3945.c
+++ b/drivers/net/wireless/iwlegacy/iwl-3945.c
@@ -1872,11 +1872,12 @@ static void iwl3945_bg_reg_txpower_periodic(struct work_struct *work)
 	struct iwl_priv *priv = container_of(work, struct iwl_priv,
 					     _3945.thermal_periodic.work);
 
-	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
-		return;
-
 	mutex_lock(&priv->mutex);
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status) || priv->txq == NULL)
+		goto out;
+
 	iwl3945_reg_txpower_periodic(priv);
+out:
 	mutex_unlock(&priv->mutex);
 }
 
diff --git a/drivers/net/wireless/iwlegacy/iwl3945-base.c b/drivers/net/wireless/iwlegacy/iwl3945-base.c
index a935585..101a2c2 100644
--- a/drivers/net/wireless/iwlegacy/iwl3945-base.c
+++ b/drivers/net/wireless/iwlegacy/iwl3945-base.c
@@ -2763,7 +2763,7 @@ static void iwl3945_bg_alive_start(struct work_struct *data)
 	    container_of(data, struct iwl_priv, alive_start.work);
 
 	mutex_lock(&priv->mutex);
-	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status) || priv->txq == NULL)
 		goto out;
 
 	iwl3945_alive_start(priv);
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 5a9b684..1f3624d 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -109,7 +109,7 @@ struct afs_call {
 	unsigned		reply_size;	/* current size of reply */
 	unsigned		first_offset;	/* offset into mapping[first] */
 	unsigned		last_to;	/* amount of mapping[last] */
-	unsigned short		offset;		/* offset into received data store */
+	unsigned		offset;		/* offset into received data store */
 	unsigned char		unmarshall;	/* unmarshalling phase */
 	bool			incoming;	/* T if incoming call */
 	bool			send_pages;	/* T if data from mapping should be sent */
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index e45a323..8ad8c2a 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -314,6 +314,7 @@ int afs_make_call(struct in_addr *addr, struct afs_call *call, gfp_t gfp,
 	struct msghdr msg;
 	struct kvec iov[1];
 	int ret;
+	struct sk_buff *skb;
 
 	_enter("%x,{%d},", addr->s_addr, ntohs(call->port));
 
@@ -380,6 +381,8 @@ int afs_make_call(struct in_addr *addr, struct afs_call *call, gfp_t gfp,
 
 error_do_abort:
 	rxrpc_kernel_abort_call(rxcall, RX_USER_ABORT);
+	while ((skb = skb_dequeue(&call->rx_queue)))
+		afs_free_skb(skb);
 	rxrpc_kernel_end_call(rxcall);
 	call->rxcall = NULL;
 error_kill_call:
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index d327140..35a8970 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -515,6 +515,7 @@ static int nilfs_load_super_block(struct the_nilfs *nilfs,
 		brelse(sbh[1]);
 		sbh[1] = NULL;
 		sbp[1] = NULL;
+		valid[1] = 0;
 		swp = 0;
 	}
 	if (!valid[swp]) {
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 4382629..895f215 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -277,6 +277,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	struct rtable *rt;
 	__u8 rcv_wscale;
 	bool ecn_ok = false;
+	struct flowi4 fl4;
 
 	if (!sysctl_tcp_syncookies || !th->ack || th->rst)
 		goto out;
@@ -344,20 +345,16 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	 * hasn't changed since we received the original syn, but I see
 	 * no easy way to do this.
 	 */
-	{
-		struct flowi4 fl4;
-
-		flowi4_init_output(&fl4, 0, sk->sk_mark, RT_CONN_FLAGS(sk),
-				   RT_SCOPE_UNIVERSE, IPPROTO_TCP,
-				   inet_sk_flowi_flags(sk),
-				   (opt && opt->srr) ? opt->faddr : ireq->rmt_addr,
-				   ireq->loc_addr, th->source, th->dest);
-		security_req_classify_flow(req, flowi4_to_flowi(&fl4));
-		rt = ip_route_output_key(sock_net(sk), &fl4);
-		if (IS_ERR(rt)) {
-			reqsk_free(req);
-			goto out;
-		}
+	flowi4_init_output(&fl4, 0, sk->sk_mark, RT_CONN_FLAGS(sk),
+			   RT_SCOPE_UNIVERSE, IPPROTO_TCP,
+			   inet_sk_flowi_flags(sk),
+			   (opt && opt->srr) ? opt->faddr : ireq->rmt_addr,
+			   ireq->loc_addr, th->source, th->dest);
+	security_req_classify_flow(req, flowi4_to_flowi(&fl4));
+	rt = ip_route_output_key(sock_net(sk), &fl4);
+	if (IS_ERR(rt)) {
+		reqsk_free(req);
+		goto out;
 	}
 
 	/* Try to redo what tcp_v4_send_synack did. */
@@ -371,5 +368,10 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	ireq->rcv_wscale  = rcv_wscale;
 
 	ret = get_cookie_sock(sk, skb, req, &rt->dst);
+	/* ip_queue_xmit() depends on our flow being setup
+	 * Normal sockets get it right from inet_csk_route_child_sock()
+	 */
+	if (ret)
+		inet_sk(ret)->cork.fl.u.ip4 = fl4;
 out:	return ret;
 }
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 04c6592..53a5af6 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1454,9 +1454,13 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 		inet_csk(newsk)->icsk_ext_hdr_len = inet_opt->opt.optlen;
 	newinet->inet_id = newtp->write_seq ^ jiffies;
 
-	if (!dst && (dst = inet_csk_route_child_sock(sk, newsk, req)) == NULL)
-		goto put_and_exit;
-
+	if (!dst) {
+		dst = inet_csk_route_child_sock(sk, newsk, req);
+		if (!dst)
+			goto put_and_exit;
+	} else {
+		/* syncookie case : see end of cookie_v4_check() */
+	}
 	sk_setup_caps(newsk, dst);
 
 	tcp_mtup_init(newsk);
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index ee7839f..2257366 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -257,7 +257,6 @@ static struct inet6_dev *ip6_mc_find_dev_rcu(struct net *net,
 
 		if (rt) {
 			dev = rt->rt6i_dev;
-			dev_hold(dev);
 			dst_release(&rt->dst);
 		}
 	} else
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index f44fa54..0ffbc8e 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -122,6 +122,9 @@ static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)
 		}
 	}
 	va_end(ap);
+
+	if (n >= (int)size)
+		return size - 1;
 	return n;
 }