AuxXxilium/linux_dsm_epyc7002
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3b988ece9b
linux_dsm_epyc7002/net
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Hans Schillstrom 3b988ece9b netfilter: ctnetlink: fix lockep splats 
net/netfilter/nf_conntrack_proto.c:70 suspicious rcu_dereference_check() usage!

other info that might help us debug this:

rcu_scheduler_active = 1, debug_locks = 0
3 locks held by conntrack/3235:
nfnl_lock+0x17/0x20
netlink_dump+0x32/0x240
ctnetlink_dump_table+0x3e/0x170 [nf_conntrack_netlink]

stack backtrace:
Pid: 3235, comm: conntrack Tainted: G W  3.2.0+ #511
Call Trace:
[<ffffffff8108ce45>] lockdep_rcu_suspicious+0xe5/0x100
[<ffffffffa00ec6e1>] __nf_ct_l4proto_find+0x81/0xb0 [nf_conntrack]
[<ffffffffa0115675>] ctnetlink_fill_info+0x215/0x5f0 [nf_conntrack_netlink]
[<ffffffffa0115dc1>] ctnetlink_dump_table+0xd1/0x170 [nf_conntrack_netlink]
[<ffffffff815fbdbf>] netlink_dump+0x7f/0x240
[<ffffffff81090f9d>] ? trace_hardirqs_on+0xd/0x10
[<ffffffff815fd34f>] netlink_dump_start+0xdf/0x190
[<ffffffffa0111490>] ? ctnetlink_change_nat_seq_adj+0x160/0x160 [nf_conntrack_netlink]
[<ffffffffa0115cf0>] ? ctnetlink_get_conntrack+0x2a0/0x2a0 [nf_conntrack_netlink]
[<ffffffffa0115ad9>] ctnetlink_get_conntrack+0x89/0x2a0 [nf_conntrack_netlink]
[<ffffffff81603a47>] nfnetlink_rcv_msg+0x467/0x5f0
[<ffffffff81603a7c>] ? nfnetlink_rcv_msg+0x49c/0x5f0
[<ffffffff81603922>] ? nfnetlink_rcv_msg+0x342/0x5f0
[<ffffffff81071b21>] ? get_parent_ip+0x11/0x50
[<ffffffff816035e0>] ? nfnetlink_subsys_register+0x60/0x60
[<ffffffff815fed49>] netlink_rcv_skb+0xa9/0xd0
[<ffffffff81603475>] nfnetlink_rcv+0x15/0x20
[<ffffffff815fe70e>] netlink_unicast+0x1ae/0x1f0
[<ffffffff815fea16>] netlink_sendmsg+0x2c6/0x320
[<ffffffff815b2a87>] sock_sendmsg+0x117/0x130
[<ffffffff81125093>] ? might_fault+0x53/0xb0
[<ffffffff811250dc>] ? might_fault+0x9c/0xb0
[<ffffffff81125093>] ? might_fault+0x53/0xb0
[<ffffffff815b5991>] ? move_addr_to_kernel+0x71/0x80
[<ffffffff815b644e>] sys_sendto+0xfe/0x130
[<ffffffff815b5c94>] ? sys_bind+0xb4/0xd0
[<ffffffff817a8a0e>] ? retint_swapgs+0xe/0x13
[<ffffffff817afcd2>] system_call_fastpath+0x16/0x1b

Reported-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
2012-03-07 17:41:10 +01:00
..
9p virtio: rename virtqueue_add_buf_gfp to virtqueue_add_buf 2012-01-12 15:44:42 +10:30
802 net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
8021q vlan: static functions 2011-12-14 02:39:30 -05:00
appletalk net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
atm ppp: Replace uses of <linux/if_ppp.h> with <linux/ppp-ioctl.h> 2012-03-04 20:41:38 -05:00
ax25 ax25: avoid overflows in ax25_setsockopt() 2011-12-28 14:08:08 -05:00
batman-adv Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge 2012-02-28 15:07:52 -05:00
bluetooth Bluetooth: Fix possible use after free in delete path 2012-02-15 13:09:26 +02:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-03-05 21:16:26 -05:00
caif caif: remove duplicate initialization 2012-02-07 13:39:37 -05:00
can can: remove references to berlios mailinglist 2011-10-17 19:22:46 -04:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2012-02-02 15:47:33 -08:00
core net: Use bool for return value of dev_valid_name(). 2012-03-06 16:12:15 -05:00
dcb net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
dccp dccp: fix bug in sequence number validation during connection setup 2012-03-03 09:02:52 -07:00
decnet decnet: remove unused variable from dn_output() 2012-02-05 17:44:55 -05:00
dns_resolver
dsa dsa: Move switch drivers to new directory drivers/net/dsa 2011-11-29 00:21:36 -05:00
econet net: Remove all uses of LL_ALLOCATED_SPACE 2011-11-18 14:37:09 -05:00
ethernet eth: reset addr_assign_type if eth_mac_addr() called 2012-02-13 00:46:41 -05:00
ieee802154 net/ieee802154/6lowpan.c: reuse eth_mac_addr() 2012-02-22 14:46:37 -05:00
ipv4 netfilter: merge ipt_LOG and ip6_LOG into xt_LOG 2012-03-07 17:40:49 +01:00
ipv6 netfilter: merge ipt_LOG and ip6_LOG into xt_LOG 2012-03-07 17:40:49 +01:00
ipx net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
irda ppp: Replace uses of <linux/if_ppp.h> with <linux/ppp-ioctl.h> 2012-03-04 20:41:38 -05:00
iucv af_iucv: allow retrieval of maximum message size 2012-02-08 18:50:19 -05:00
key net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
l2tp ppp: Replace uses of <linux/if_ppp.h> with <linux/ppp-ioctl.h> 2012-03-04 20:41:38 -05:00
lapb wan: make LAPB callbacks const 2011-09-16 19:20:20 -04:00
llc llc: Fix race condition in llc_ui_recvmsg 2012-01-24 15:33:19 -05:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-03-01 17:57:40 -05:00
netfilter netfilter: ctnetlink: fix lockep splats 2012-03-07 17:41:10 +01:00
netlabel net: reintroduce missing rcu_assign_pointer() calls 2012-01-12 12:26:56 -08:00
netlink netlink: allow to pass data pointer to netlink_dump_start() callback 2012-02-26 14:10:44 -05:00
netrom netrom: avoid overflows in nr_setsockopt() 2011-12-28 14:08:08 -05:00
nfc nfc: NULL vs zero in nci_activate_target() 2012-01-27 14:57:04 -05:00
openvswitch net: use eth_hw_addr_random() and reset addr_assign_type 2012-02-15 15:34:17 -05:00
packet net: Add framework to allow sending packets with customized CRC. 2012-02-24 01:37:35 -08:00
phonet net: reintroduce missing rcu_assign_pointer() calls 2012-01-12 12:26:56 -08:00
rds rds: Make rds_sock_lock BH rather than IRQ safe. 2012-01-24 17:03:44 -05:00
rfkill Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2012-01-05 10:13:24 -05:00
rose net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
rxrpc RxRPC: Fix kcalloc parameters swapped 2012-02-14 14:41:55 -05:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-02-26 21:55:51 -05:00
sctp Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-01-08 13:21:22 -08:00
sunrpc SUNRPC: Fix machine creds in generic_create_cred and generic_match 2012-01-23 14:03:46 -08:00
tipc tipc: Optimize setting of immutable payload message header fields 2012-02-29 11:45:35 -05:00
unix netlink: add netlink_dump_control structure for netlink_dump_start() 2012-02-26 14:10:06 -05:00
wanrouter wanrouter: Remove kernel_lock annotations 2011-11-07 13:27:30 -05:00
wimax net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
wireless cfg80211: remove cookies from callbacks 2012-02-29 14:11:33 -05:00
x25 net:x25: use IS_ENABLED 2011-12-16 15:49:52 -05:00
xfrm netlink: add netlink_dump_control structure for netlink_dump_start() 2012-02-26 14:10:06 -05:00
compat.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
Kconfig net: Add Open vSwitch kernel components. 2011-12-03 09:35:17 -08:00
Makefile net: Add Open vSwitch kernel components. 2011-12-03 09:35:17 -08:00
nonet.c
socket.c net: reintroduce missing rcu_assign_pointer() calls 2012-01-12 12:26:56 -08:00
sysctl_net.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00