SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=9890 comm=syz-executor1
SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=9894 comm=syz-executor1
INFO: task syz-executor0:9866 blocked for more than 140 seconds.
      Not tainted 4.9.128+ #41
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor0   D28832  9866   2114 0x00000004
 ffff8801a5342f80 ffff8801d25f5280 ffff8801c8aaa100 ffff8801ca86c740
 ffff8801db621018 ffff8801cc77fcf8 ffffffff8277ee02 0000000000000000
 ffff8801a5343830 ffffed0034a68705 00ff8801a5342f80 ffff8801db6218f0
Call Trace:
 [<ffffffff8278032f>] schedule+0x7f/0x1b0 kernel/sched/core.c:3553
 [<ffffffff82780cb3>] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3586
 [<ffffffff82782936>] __mutex_lock_common kernel/locking/mutex.c:582 [inline]
 [<ffffffff82782936>] mutex_lock_nested+0x326/0x870 kernel/locking/mutex.c:621
 [<ffffffff81fea2b2>] evdev_flush+0x72/0x120 drivers/input/evdev.c:350
 [<ffffffff814e3487>] filp_close+0xa7/0x140 fs/open.c:1129
 [<ffffffff8154c2a6>] __close_fd+0x156/0x230 fs/file.c:651
 [<ffffffff814e356c>] SYSC_close fs/open.c:1148 [inline]
 [<ffffffff814e356c>] SyS_close+0x4c/0x90 fs/open.c:1146
 [<ffffffff8100554f>] do_syscall_64+0x19f/0x480 arch/x86/entry/common.c:282
 [<ffffffff8278df13>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

Showing all locks held in the system:
2 locks held by khungtaskd/24:
 #0:  (rcu_read_lock){......}, at: [<ffffffff8130a0ac>] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline]
 #0:  (rcu_read_lock){......}, at: [<ffffffff8130a0ac>] watchdog+0x11c/0xa20 kernel/hung_task.c:239
 #1:  (tasklist_lock){.+.+..}, at: [<ffffffff813e71ec>] debug_show_all_locks+0x79/0x218 kernel/locking/lockdep.c:4336
2 locks held by getty/2027:
 #0:  (&tty->ldisc_sem){++++++}, at: [<ffffffff8278bfd2>] ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:367
 #1:  (&ldata->atomic_read_lock){+.+...}, at: [<ffffffff81cdee72>] n_tty_read+0x202/0x16e0 drivers/tty/n_tty.c:2142
1 lock held by syz-executor0/9866:
 #0:  (&evdev->mutex){+.+.+.}, at: [<ffffffff81fea2b2>] evdev_flush+0x72/0x120 drivers/input/evdev.c:350

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.128+ #41
 ffff8801d9907d08 ffffffff81af2469 0000000000000000 0000000000000000
 0000000000000000 0000000000000001 ffffffff810967d0 ffff8801d9907d40
 ffffffff81afd1c9 0000000000000000 0000000000000000 0000000000000003
Call Trace:
 [<ffffffff81af2469>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81af2469>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81afd1c9>] nmi_cpu_backtrace.cold.0+0x48/0x87 lib/nmi_backtrace.c:99
 [<ffffffff81afd15c>] nmi_trigger_cpumask_backtrace+0x12c/0x151 lib/nmi_backtrace.c:60
 [<ffffffff810968d4>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
 [<ffffffff8130a63d>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
 [<ffffffff8130a63d>] check_hung_task kernel/hung_task.c:125 [inline]
 [<ffffffff8130a63d>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
 [<ffffffff8130a63d>] watchdog+0x6ad/0xa20 kernel/hung_task.c:239
 [<ffffffff8113e00d>] kthread+0x26d/0x300 kernel/kthread.c:211
 [<ffffffff8278e0dc>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5768 Comm: syz-executor3 Not tainted 4.9.128+ #41
task: ffff8801cb9c2f80 task.stack: ffff8801a4900000
RIP: 0010:[<ffffffff8138062d>] 
c [<ffffffff8138062d>] __bpf_prog_run+0x2b7d/0x54b0 kernel/bpf/core.c:606
RSP: 0018:ffff8801a4907940  EFLAGS: 00000246
RAX: ffffffff8138062d RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8137db73 RDI: ffffffff8288ce38
RBP: ffff8801a4907ca8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801a4907c80
R13: ffffffff8288c840 R14: ffffc9000daf1038 R15: 00000000000000bf
FS:  00007f625c951700(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000202f4000 CR3: 00000001d2780000 CR4: 00000000001606b0
Stack:
 ffff8801cb9c3820
c 00000000cb9c3878
c 1ffff10034920f2c
c ffffffff82ecc378
c
 0000000041b58ab3
c ffffffff82c325f8
c ffffffff8137dab0
c ffffffff82c20fef
c
 ffffffff811f7600
c ffffffff811f771a
c 0000000000000000
c dffffc0000000000
c
Call Trace:
 [<ffffffff8130c6cc>] seccomp_run_filters kernel/seccomp.c:200 [inline]
 [<ffffffff8130c6cc>] __seccomp_filter+0x14c/0xc80 kernel/seccomp.c:589
 [<ffffffff8130ebc6>] __secure_computing+0xa6/0x290 kernel/seccomp.c:692
 [<ffffffff81004940>] syscall_trace_enter+0x550/0xd20 arch/x86/entry/common.c:117
 [<ffffffff8100566c>] do_syscall_64+0x2bc/0x480 arch/x86/entry/common.c:273
 [<ffffffff8278df13>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 
ce8 
c03 
c80 
c3c 
c18 
c00 
c0f 
c85 
c6c 
c28 
c00 
c00 
c4b 
c8b 
c8c 
cfc 
c40 
cfd 
cff 
cff 
c48 
c89 
cf0 
c49 
c83 
cc6 
c08 
c48 
cd3 
ce8 
c49 
c89 
c84 
cd4 
c40 
cfd 
cff 
cff 
ce9 
c41 
cd5 
cff 
cff 
c<e8> 
c0e 
c94 
cf8 
cff 
c49 
c8d 
c7e 
c01 
c48 
c89 
cf8 
c48 
c89 
cfa 
c48 
cc1 
ce8 
c03 
c83 
ce2 
c