Tushar Dave 25c1040233 netpoll: Check for skb->queue_mapping ... [ Upstream commit c70b17b775edb21280e9de7531acf6db3b365274 ] Reducing real_num_tx_queues needs to be in sync with skb queue_mapping otherwise skbs with queue_mapping greater than real_num_tx_queues can be sent to the underlying driver and can result in kernel panic. One such event is running netconsole and enabling VF on the same device. Or running netconsole and changing number of tx queues via ethtool on same device. e.g. Unable to handle kernel NULL pointer dereference tsk->{mm,active_mm}->context = 0000000000001525 tsk->{mm,active_mm}->pgd = fff800130ff9a000 \|/ ____ \|/ "@'/ .. \`@" /_| \__/ |_\ \__U_/ kworker/48:1(475): Oops [#1] CPU: 48 PID: 475 Comm: kworker/48:1 Tainted: G OE 4.11.0-rc3-davem-net+ #7 Workqueue: events queue_process task: fff80013113299c0 task.stack: fff800131132c000 TSTATE: 0000004480e01600 TPC: 00000000103f9e3c TNPC: 00000000103f9e40 Y: 00000000 Tainted: G OE TPC: <ixgbe_xmit_frame_ring+0x7c/0x6c0 [ixgbe]> g0: 0000000000000000 g1: 0000000000003fff g2: 0000000000000000 g3: 0000000000000001 g4: fff80013113299c0 g5: fff8001fa6808000 g6: fff800131132c000 g7: 00000000000000c0 o0: fff8001fa760c460 o1: fff8001311329a50 o2: fff8001fa7607504 o3: 0000000000000003 o4: fff8001f96e63a40 o5: fff8001311d77ec0 sp: fff800131132f0e1 ret_pc: 000000000049ed94 RPC: <set_next_entity+0x34/0xb80> l0: 0000000000000000 l1: 0000000000000800 l2: 0000000000000000 l3: 0000000000000000 l4: 000b2aa30e34b10d l5: 0000000000000000 l6: 0000000000000000 l7: fff8001fa7605028 i0: fff80013111a8a00 i1: fff80013155a0780 i2: 0000000000000000 i3: 0000000000000000 i4: 0000000000000000 i5: 0000000000100000 i6: fff800131132f1a1 i7: 00000000103fa4b0 I7: <ixgbe_xmit_frame+0x30/0xa0 [ixgbe]> Call Trace: [00000000103fa4b0] ixgbe_xmit_frame+0x30/0xa0 [ixgbe] [0000000000998c74] netpoll_start_xmit+0xf4/0x200 [0000000000998e10] queue_process+0x90/0x160 [0000000000485fa8] process_one_work+0x188/0x480 [0000000000486410] worker_thread+0x170/0x4c0 [000000000048c6b8] kthread+0xd8/0x120 [0000000000406064] ret_from_fork+0x1c/0x2c [0000000000000000] (null) Disabling lock debugging due to kernel taint Caller[00000000103fa4b0]: ixgbe_xmit_frame+0x30/0xa0 [ixgbe] Caller[0000000000998c74]: netpoll_start_xmit+0xf4/0x200 Caller[0000000000998e10]: queue_process+0x90/0x160 Caller[0000000000485fa8]: process_one_work+0x188/0x480 Caller[0000000000486410]: worker_thread+0x170/0x4c0 Caller[000000000048c6b8]: kthread+0xd8/0x120 Caller[0000000000406064]: ret_from_fork+0x1c/0x2c Caller[0000000000000000]: (null) Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-05-02 21:19:53 -07:00
..
6lowpan
9p
802
8021q	net: add recursion limit to GRO	2016-11-15 07:46:38 +01:00
appletalk
atm
ax25	ax25: Fix segfault after sock connection timeout	2017-02-04 09:45:09 +01:00
batman-adv	batman-adv: Check for alloc errors when preparing TT local data	2016-12-15 08:49:23 -08:00
bluetooth	Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU	2016-08-20 18:09:19 +02:00
bridge	bridge: drop netfilter fake rtable unconditionally	2017-03-22 12:04:17 +01:00
caif	net: caif: fix misleading indentation	2016-09-30 10:18:35 +02:00
can	can: Fix kernel panic at security_sock_rcv_skb	2017-02-18 16:39:26 +01:00
ceph	libceph: force GFP_NOIO for socket allocations	2017-04-08 09:53:30 +02:00
core	netpoll: Check for skb->queue_mapping	2017-05-02 21:19:53 -07:00
dcb
dccp	dccp: fix memory leak during tear-down of unsuccessful connection request	2017-03-22 12:04:17 +01:00
decnet	decnet: Do not build routes to devices without decnet private data.	2016-05-18 17:06:35 -07:00
dns_resolver
dsa	net: dsa: Bring back device detaching in dsa_slave_suspend()	2017-02-04 09:45:10 +01:00
ethernet	net: introduce device min_header_len	2017-02-18 16:39:27 +01:00
hsr
ieee802154
ipv4	tcp: clear saved_syn in tcp_disconnect()	2017-05-02 21:19:53 -07:00
ipv6	net: ipv6: RTF_PCPU should not be settable from userspace	2017-05-02 21:19:53 -07:00
ipx
irda	irda: Fix lockdep annotations in hashbin_delete().	2017-02-26 11:07:50 +01:00
iucv
key
l2tp	l2tp: fix PPP pseudo-wire auto-loading	2017-05-02 21:19:52 -07:00
l3mdev
lapb
llc	net/llc: avoid BUG_ON() in skb_orphan()	2017-02-26 11:07:49 +01:00
mac80211	mac80211: reject ToDS broadcast data frames	2017-04-27 09:09:33 +02:00
mac802154
mpls	mpls: Send route delete notifications when router module is unloaded	2017-03-22 12:04:16 +01:00
netfilter	netfilter: nfnetlink: correctly validate length of batch messages	2017-04-30 05:49:28 +02:00
netlabel	netlabel: add address family checks to netlbl_{sock,req}_delattr()	2016-08-20 18:09:22 +02:00
netlink	netlink: remove mmapped netlink support	2017-03-22 12:04:13 +01:00
netrom
nfc
openvswitch	net/openvswitch: Set the ipv6 source tunnel key address attribute correctly	2017-03-30 09:35:12 +02:00
packet	net/packet: fix overflow in check for tp_reserve	2017-05-02 21:19:51 -07:00
phonet
rds	RDS: Fix the atomicity for congestion map update	2017-05-02 21:19:49 -07:00
rfkill
rose
rxrpc
sched	net_sched: close another race condition in tcf_mirred_release()	2017-05-02 21:19:49 -07:00
sctp	sctp: listen on the sock only when it's state is listening or closed	2017-05-02 21:19:52 -07:00
sunrpc	SUNRPC: fix refcounting problems with auth_gss messages.	2017-04-21 09:30:08 +02:00
switchdev	switchdev: pass pointer to fib_info instead of copy	2016-06-24 10:18:16 -07:00
tipc	tipc: check minimum bearer MTU	2017-04-30 05:49:28 +02:00
unix	net: unix: properly re-increment inflight counter of GC discarded candidates	2017-03-30 09:35:13 +02:00
vmw_vsock	VSOCK: Detach QP check should filter out non matching QPs.	2017-04-27 09:09:32 +02:00
wimax
wireless	nl80211: fix dumpit error path RTNL deadlocks	2017-03-30 09:35:18 +02:00
x25	net: fix a kernel infoleak in x25 module	2016-05-18 17:06:43 -07:00
xfrm	xfrm_user: validate XFRM_MSG_NEWAE incoming ESN size harder	2017-03-31 09:49:52 +02:00
compat.c
Kconfig
Makefile
socket.c	net: socket: fix recvmmsg not returning error from sock_error	2017-02-26 11:07:50 +01:00
sysctl_net.c	net: Use ns_capable_noaudit() when determining net sysctl permissions	2016-09-15 08:27:50 +02:00