IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
============================================
WARNING: possible recursive locking detected
4.19.211-syzkaller #0 Not tainted
--------------------------------------------
syz-executor.1/14475 is trying to acquire lock:
000000006ba4aef9 (_xmit_ETHER#2){+.-.}, at: spin_lock include/linux/spinlock.h:329 [inline]
000000006ba4aef9 (_xmit_ETHER#2){+.-.}, at: __netif_tx_lock include/linux/netdevice.h:3842 [inline]
000000006ba4aef9 (_xmit_ETHER#2){+.-.}, at: sch_direct_xmit+0x254/0xf70 net/sched/sch_generic.c:330
but task is already holding lock:
0000000089f564b0 (_xmit_ETHER#2){+.-.}, at: spin_lock include/linux/spinlock.h:329 [inline]
0000000089f564b0 (_xmit_ETHER#2){+.-.}, at: __netif_tx_lock include/linux/netdevice.h:3842 [inline]
0000000089f564b0 (_xmit_ETHER#2){+.-.}, at: sch_direct_xmit+0x254/0xf70 net/sched/sch_generic.c:330
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(_xmit_ETHER#2);
lock(_xmit_ETHER#2);
*** DEADLOCK ***
May be due to missing lock nesting notation
9 locks held by syz-executor.1/14475:
#0: 00000000ab63fa5b (rcu_read_lock_bh){....}, at: lwtunnel_xmit_redirect include/net/lwtunnel.h:92 [inline]
#0: 00000000ab63fa5b (rcu_read_lock_bh){....}, at: ip_finish_output2+0x28d/0x15a0 net/ipv4/ip_output.c:214
#1: 00000000ab63fa5b (rcu_read_lock_bh){....}, at: __dev_queue_xmit+0x1e2/0x2e00 net/core/dev.c:3773
#2: 00000000d3a147bc (&(&sch->seqlock)->rlock){+...}, at: spin_trylock include/linux/spinlock.h:339 [inline]
#2: 00000000d3a147bc (&(&sch->seqlock)->rlock){+...}, at: qdisc_run_begin include/net/sch_generic.h:130 [inline]
#2: 00000000d3a147bc (&(&sch->seqlock)->rlock){+...}, at: qdisc_run include/net/pkt_sched.h:119 [inline]
#2: 00000000d3a147bc (&(&sch->seqlock)->rlock){+...}, at: __dev_xmit_skb net/core/dev.c:3451 [inline]
#2: 00000000d3a147bc (&(&sch->seqlock)->rlock){+...}, at: __dev_queue_xmit+0x278b/0x2e00 net/core/dev.c:3807
#3: 00000000abd0b884 (dev->qdisc_running_key ?: &qdisc_running_key){+...}, at: neigh_hh_output include/net/neighbour.h:491 [inline]
#3: 00000000abd0b884 (dev->qdisc_running_key ?: &qdisc_running_key){+...}, at: neigh_output include/net/neighbour.h:499 [inline]
#3: 00000000abd0b884 (dev->qdisc_running_key ?: &qdisc_running_key){+...}, at: ip_finish_output2+0xb6d/0x15a0 net/ipv4/ip_output.c:230
#4: 0000000089f564b0 (_xmit_ETHER#2){+.-.}, at: spin_lock include/linux/spinlock.h:329 [inline]
#4: 0000000089f564b0 (_xmit_ETHER#2){+.-.}, at: __netif_tx_lock include/linux/netdevice.h:3842 [inline]
#4: 0000000089f564b0 (_xmit_ETHER#2){+.-.}, at: sch_direct_xmit+0x254/0xf70 net/sched/sch_generic.c:330
#5: 00000000ab63fa5b (rcu_read_lock_bh){....}, at: lwtunnel_xmit_redirect include/net/lwtunnel.h:92 [inline]
#5: 00000000ab63fa5b (rcu_read_lock_bh){....}, at: ip_finish_output2+0x28d/0x15a0 net/ipv4/ip_output.c:214
#6: 00000000ab63fa5b (rcu_read_lock_bh){....}, at: __dev_queue_xmit+0x1e2/0x2e00 net/core/dev.c:3773
#7: 00000000e5bb01ba (&(&sch->seqlock)->rlock){+...}, at: spin_trylock include/linux/spinlock.h:339 [inline]
#7: 00000000e5bb01ba (&(&sch->seqlock)->rlock){+...}, at: qdisc_run_begin include/net/sch_generic.h:130 [inline]
#7: 00000000e5bb01ba (&(&sch->seqlock)->rlock){+...}, at: qdisc_run include/net/pkt_sched.h:119 [inline]
#7: 00000000e5bb01ba (&(&sch->seqlock)->rlock){+...}, at: __dev_xmit_skb net/core/dev.c:3451 [inline]
#7: 00000000e5bb01ba (&(&sch->seqlock)->rlock){+...}, at: __dev_queue_xmit+0x278b/0x2e00 net/core/dev.c:3807
#8: 0000000075eae239 (dev->qdisc_running_key ?: &qdisc_running_key){+...}, at: neigh_resolve_output+0x55a/0x910 net/core/neighbour.c:1374
stack backtrace:
CPU: 0 PID: 14475 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
print_deadlock_bug kernel/locking/lockdep.c:1764 [inline]
check_deadlock kernel/locking/lockdep.c:1808 [inline]
validate_chain kernel/locking/lockdep.c:2404 [inline]
__lock_acquire.cold+0x121/0x57e kernel/locking/lockdep.c:3416
lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144
spin_lock include/linux/spinlock.h:329 [inline]
__netif_tx_lock include/linux/netdevice.h:3842 [inline]
sch_direct_xmit+0x254/0xf70 net/sched/sch_generic.c:330
qdisc_restart net/sched/sch_generic.c:395 [inline]
__qdisc_run+0x4d0/0x1640 net/sched/sch_generic.c:403
qdisc_run include/net/pkt_sched.h:120 [inline]
__dev_xmit_skb net/core/dev.c:3451 [inline]
__dev_queue_xmit+0x2102/0x2e00 net/core/dev.c:3807
neigh_resolve_output+0x55a/0x910 net/core/neighbour.c:1374
neigh_output include/net/neighbour.h:501 [inline]
ip_finish_output2+0xd76/0x15a0 net/ipv4/ip_output.c:230
ip_finish_output+0xae9/0x10b0 net/ipv4/ip_output.c:318
NF_HOOK_COND include/linux/netfilter.h:278 [inline]
ip_output+0x203/0x5f0 net/ipv4/ip_output.c:406
dst_output include/net/dst.h:455 [inline]
ip_local_out+0xaf/0x170 net/ipv4/ip_output.c:125
iptunnel_xmit+0x63b/0x9d0 net/ipv4/ip_tunnel_core.c:91
ip_tunnel_xmit+0x13ad/0x3850 net/ipv4/ip_tunnel.c:790
erspan_xmit+0xd6e/0x27e0 net/ipv4/ip_gre.c:759
__netdev_start_xmit include/linux/netdevice.h:4349 [inline]
netdev_start_xmit include/linux/netdevice.h:4363 [inline]
xmit_one net/core/dev.c:3256 [inline]
dev_hard_start_xmit+0x1a8/0x920 net/core/dev.c:3272
sch_direct_xmit+0x2d6/0xf70 net/sched/sch_generic.c:332
qdisc_restart net/sched/sch_generic.c:395 [inline]
__qdisc_run+0x4d0/0x1640 net/sched/sch_generic.c:403
qdisc_run include/net/pkt_sched.h:120 [inline]
__dev_xmit_skb net/core/dev.c:3451 [inline]
__dev_queue_xmit+0x2102/0x2e00 net/core/dev.c:3807
neigh_hh_output include/net/neighbour.h:491 [inline]
neigh_output include/net/neighbour.h:499 [inline]
ip_finish_output2+0xb6d/0x15a0 net/ipv4/ip_output.c:230
ip_finish_output+0xae9/0x10b0 net/ipv4/ip_output.c:318
NF_HOOK_COND include/linux/netfilter.h:278 [inline]
ip_output+0x203/0x5f0 net/ipv4/ip_output.c:406
dst_output include/net/dst.h:455 [inline]
ip_local_out+0xaf/0x170 net/ipv4/ip_output.c:125
ip_send_skb+0x3e/0xe0 net/ipv4/ip_output.c:1452
udp_send_skb+0x6a4/0x1170 net/ipv4/udp.c:848
udp_sendmsg+0x1cb4/0x2550 net/ipv4/udp.c:1135
udpv6_sendmsg+0x14b2/0x2ae0 net/ipv6/udp.c:1224
inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2227
__sys_sendmmsg+0x195/0x470 net/socket.c:2322
__do_sys_sendmmsg net/socket.c:2351 [inline]
__se_sys_sendmmsg net/socket.c:2348 [inline]
__x64_sys_sendmmsg+0x99/0x100 net/socket.c:2348
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f90b522de99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f90b3b82168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f90b5341030 RCX: 00007f90b522de99
RDX: 0400000000000132 RSI: 0000000020004d80 RDI: 0000000000000004
RBP: 00007f90b5288031 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000004000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffec9d3c75f R14: 00007f90b3b82300 R15: 0000000000022000
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
syz-executor.1 (14475) used greatest stack depth: 22008 bytes left
Bluetooth: hci5: command 0x041b tx timeout
team0: Device ipvlan1 failed to register rx_handler
BTRFS: device fsid f90cac8b-044b-4fa8-8bee-4b8d3da88dc2 devid 1 transid 7 /dev/loop4
BTRFS info (device loop4): disk space caching is enabled
overlayfs: failed to resolve './file1': -2
BTRFS info (device loop4): has skinny extents
overlayfs: failed to resolve './file1': -2
overlayfs: failed to resolve './file1': -2
BTRFS warning (device loop4): loop4 checksum verify failed on 5242880 wanted 42BCE6B8 found F7DBF42E level 0
BTRFS warning (device loop4): failed to read tree root
overlayfs: failed to resolve './file1': -2
overlayfs: failed to resolve './file1': -2
BTRFS error (device loop4): open_ctree failed
Bluetooth: hci5: command 0x040f tx timeout
team0: Device ipvlan1 failed to register rx_handler
BTRFS info (device loop4): disk space caching is enabled
BTRFS info (device loop4): has skinny extents
overlayfs: failed to resolve './file1': -2
BTRFS error (device loop4): open_ctree failed
overlayfs: failed to resolve './file1': -2
overlayfs: failed to resolve './file1': -2
netlink: 'syz-executor.2': attribute type 10 has an invalid length.
overlayfs: failed to resolve './file1': -2
netlink: 36325 bytes leftover after parsing attributes in process `syz-executor.2'.
overlayfs: failed to resolve './file1': -2
overlayfs: failed to resolve './file1': -2
overlayfs: failed to resolve './file1': -2
netlink: 'syz-executor.0': attribute type 10 has an invalid length.
overlayfs: failed to resolve './file1': -2
netlink: 36421 bytes leftover after parsing attributes in process `syz-executor.0'.
overlayfs: failed to resolve './file1': -2
netlink: 'syz-executor.2': attribute type 10 has an invalid length.
netlink: 44097 bytes leftover after parsing attributes in process `syz-executor.2'.
Bluetooth: hci5: command 0x0419 tx timeout
overlayfs: failed to resolve './file1': -2
hpfs: Bad magic ... probably not HPFS
overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off.
kauditd_printk_skb: 10 callbacks suppressed
audit: type=1804 audit(1639391824.880:16): pid=15157 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir948574371/syzkaller.3Yx6tI/70/bus/file0" dev="sda1" ino=14271 res=1
hpfs: Bad magic ... probably not HPFS
overlayfs: overlapping lowerdir path
hpfs: Bad magic ... probably not HPFS
overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off.
audit: type=1804 audit(1639391825.270:17): pid=15203 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir948574371/syzkaller.3Yx6tI/72/bus/file0" dev="sda1" ino=14334 res=1
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 PID: 15497 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
fail_dump lib/fault-inject.c:51 [inline]
should_fail.cold+0xa/0xf lib/fault-inject.c:149
__should_failslab+0x115/0x180 mm/failslab.c:32
should_failslab+0x5/0x10 mm/slab_common.c:1590
slab_pre_alloc_hook mm/slab.h:424 [inline]
slab_alloc mm/slab.c:3383 [inline]
__do_kmalloc mm/slab.c:3725 [inline]
__kmalloc_track_caller+0x2a6/0x3c0 mm/slab.c:3742
memdup_user+0x22/0xb0 mm/util.c:160
copy_dev_ioctl fs/autofs/dev-ioctl.c:96 [inline]
_autofs_dev_ioctl+0x1fd/0x8b0 fs/autofs/dev-ioctl.c:634
autofs_dev_ioctl+0x17/0x20 fs/autofs/dev-ioctl.c:704
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:501 [inline]
do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
__do_sys_ioctl fs/ioctl.c:712 [inline]
__se_sys_ioctl fs/ioctl.c:710 [inline]
__x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f77cbd22e99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f77ca698168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f77cbe35f60 RCX: 00007f77cbd22e99
RDX: 0000000020000040 RSI: 00000000c0189375 RDI: 0000000000000004
RBP: 00007f77ca6981d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffdff0df51f R14: 00007f77ca698300 R15: 0000000000022000
nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead.
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 15576 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
fail_dump lib/fault-inject.c:51 [inline]
should_fail.cold+0xa/0xf lib/fault-inject.c:149
__should_failslab+0x115/0x180 mm/failslab.c:32
should_failslab+0x5/0x10 mm/slab_common.c:1590
slab_pre_alloc_hook mm/slab.h:424 [inline]
slab_alloc_node mm/slab.c:3304 [inline]
kmem_cache_alloc_node+0x245/0x3b0 mm/slab.c:3647
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
netlink_alloc_large_skb net/netlink/af_netlink.c:1197 [inline]
netlink_sendmsg+0x9f6/0xc50 net/netlink/af_netlink.c:1892
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
__sys_sendmsg net/socket.c:2265 [inline]
__do_sys_sendmsg net/socket.c:2274 [inline]
__se_sys_sendmsg net/socket.c:2272 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f061b1d6e99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0619b4c168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f061b2e9f60 RCX: 00007f061b1d6e99
RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003
RBP: 00007f0619b4c1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd6de62baf R14: 00007f0619b4c300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 15606 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
fail_dump lib/fault-inject.c:51 [inline]
should_fail.cold+0xa/0xf lib/fault-inject.c:149
__should_failslab+0x115/0x180 mm/failslab.c:32
should_failslab+0x5/0x10 mm/slab_common.c:1590
slab_pre_alloc_hook mm/slab.h:424 [inline]
slab_alloc_node mm/slab.c:3304 [inline]
kmem_cache_alloc_node_trace+0x244/0x3b0 mm/slab.c:3666
__do_kmalloc_node mm/slab.c:3688 [inline]
__kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3703
__kmalloc_reserve net/core/skbuff.c:137 [inline]
__alloc_skb+0xae/0x560 net/core/skbuff.c:205
alloc_skb include/linux/skbuff.h:995 [inline]
netlink_alloc_large_skb net/netlink/af_netlink.c:1197 [inline]
netlink_sendmsg+0x9f6/0xc50 net/netlink/af_netlink.c:1892
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
__sys_sendmsg net/socket.c:2265 [inline]
__do_sys_sendmsg net/socket.c:2274 [inline]
__se_sys_sendmsg net/socket.c:2272 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f061b1d6e99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0619b4c168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f061b2e9f60 RCX: 00007f061b1d6e99
RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003
RBP: 00007f0619b4c1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd6de62baf R14: 00007f0619b4c300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 15639 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
fail_dump lib/fault-inject.c:51 [inline]
should_fail.cold+0xa/0xf lib/fault-inject.c:149
__should_failslab+0x115/0x180 mm/failslab.c:32
should_failslab+0x5/0x10 mm/slab_common.c:1590
slab_pre_alloc_hook mm/slab.h:424 [inline]
slab_alloc mm/slab.c:3383 [inline]
kmem_cache_alloc+0x3f/0x370 mm/slab.c:3557
skb_clone+0x151/0x3d0 net/core/skbuff.c:1293
__netlink_deliver_tap_skb net/netlink/af_netlink.c:296 [inline]
__netlink_deliver_tap net/netlink/af_netlink.c:321 [inline]
netlink_deliver_tap+0x955/0xb00 net/netlink/af_netlink.c:334
netlink_deliver_tap_kernel net/netlink/af_netlink.c:343 [inline]
netlink_unicast_kernel net/netlink/af_netlink.c:1324 [inline]
netlink_unicast+0x545/0x690 net/netlink/af_netlink.c:1351
netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227