binder: send failed reply for transaction 1190, target dead
binder: send failed reply for transaction 1195, target dead
binder: send failed reply for transaction 1196, target dead
binder: send failed reply for transaction 1201, target dead
binder: send failed reply for transaction 1202, target dead
INFO: task syz-executor5:6993 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-executor5   D28328  6993   2108 0x00000006
 ffff8801d33817c0 ffff8801d3c70580 ffff8801d31d4200 ffff8801a4ef17c0
 ffff8801db621018 ffff8801d2fa7968 ffffffff8277ee02 0000000000000000
 ffff8801d3382070 ffffed003a67040d 00ff8801d33817c0 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
 [<ffffffff81ccf2a8>] tty_release+0xa88/0xd00 drivers/tty/tty_io.c:1933
 [<ffffffff814f0ca3>] __fput+0x263/0x700 fs/file_table.c:208
 [<ffffffff814f11c5>] ____fput+0x15/0x20 fs/file_table.c:244
 [<ffffffff811392ac>] task_work_run+0x10c/0x180 kernel/task_work.c:116
 [<ffffffff8110bf72>] get_signal+0x1042/0x1460 kernel/signal.c:2151
 [<ffffffff81051225>] do_signal+0x95/0x1b00 arch/x86/kernel/signal.c:807
 [<ffffffff81003e2e>] exit_to_usermode_loop+0x10e/0x150 arch/x86/entry/common.c:157
 [<ffffffff8100570d>] prepare_exit_to_usermode arch/x86/entry/common.c:191 [inline]
 [<ffffffff8100570d>] syscall_return_slowpath arch/x86/entry/common.c:260 [inline]
 [<ffffffff8100570d>] do_syscall_64+0x35d/0x480 arch/x86/entry/common.c:287
 [<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
1 lock held by rsyslogd/1900:
 #0:  (&f->f_pos_lock){+.+.+.}, at: [<ffffffff8154c6fc>] __fdget_pos+0xac/0xd0 fs/file.c:781
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-executor5/6993:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81ccf2a8>] tty_release+0xa88/0xd00 drivers/tty/tty_io.c:1933
1 lock held by init/21248:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81cd36a6>] tty_open_by_driver drivers/tty/tty_io.c:2047 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81cd36a6>] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2125
1 lock held by init/21249:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81cd36a6>] tty_open_by_driver drivers/tty/tty_io.c:2047 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81cd36a6>] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2125
1 lock held by init/21250:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81cd36a6>] tty_open_by_driver drivers/tty/tty_io.c:2047 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81cd36a6>] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2125
1 lock held by init/21251:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81cd36a6>] tty_open_by_driver drivers/tty/tty_io.c:2047 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81cd36a6>] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2125
1 lock held by init/21252:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81cd36a6>] tty_open_by_driver drivers/tty/tty_io.c:2047 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81cd36a6>] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2125
1 lock held by init/21253:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81cd36a6>] tty_open_by_driver drivers/tty/tty_io.c:2047 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff81cd36a6>] tty_open+0x476/0xdf0 drivers/tty/tty_io.c:2125

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

NMI backtrace for cpu 1
CPU: 1 PID: 24 Comm: khungtaskd Not tainted 4.9.128+ #41
 ffff8801d9907d08 ffffffff81af2469 0000000000000000 0000000000000001
 0000000000000001 0000000000000001 ffffffff810967d0 ffff8801d9907d40
 ffffffff81afd1c9 0000000000000001 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 13678 Comm: syz-executor3 Not tainted 4.9.128+ #41
task: ffff8801a5f40000 task.stack: ffff88019cfe8000
RIP: 0010:[<ffffffff811ff252>] 
c [<ffffffff811ff252>] trace_hardirqs_on_caller+0x202/0x590 kernel/locking/lockdep.c:2735
RSP: 0018:ffff88019cfefee0  EFLAGS: 00000803
RAX: dffffc0000000000 RBX: ffff8801a5f40000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81005626 RDI: ffff8801a5f408ac
RBP: ffff88019cfefef0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8278df40
R13: 00007fff749a547f R14: 00007fde7122e9c0 R15: 0000000000000000
FS:  00007fde7122e700(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000017230b0 CR3: 00000001d9c37000 CR4: 00000000001606b0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Stack:
 000000000072bf08
c 000000000072bf0c
c ffff88019cfeff48
c ffffffff8100226a
c
 0000000000000000
c 0000000000000000
c 0000000000000000
c 0000000000000000
c
 0000000000000000
c 0000000000000000
c 1ffff10034be8001
c ffffffff81005626
c
Call Trace:
 [<ffffffff8100226a>] trace_hardirqs_on_thunk+0x1a/0x1c
 [<ffffffff8278df40>] entry_SYSCALL_64_after_swapgs+0x8a/0xdb
Code: 
c0f 
c85 
cb8 
c01 
c00 
c00 
c65 
c48 
c8b 
c1c 
c25 
c00 
c7e 
c01 
c00 
c48 
c8d 
cbb 
cac 
c08 
c00 
c00 
c48 
cb8 
c00 
c00 
c00 
c00 
c00 
cfc 
cff 
cdf 
c48 
c89 
cfa 
c48 
cc1 
cea 
c03 
c0f 
cb6 
c14 
c02 
c<48> 
c89 
cf8 
c83 
ce0 
c07 
c83 
cc0 
c03 
c38 
cd0 
c7c 
c08 
c84 
cd2 
c0f 
c85 
c04 
c02 
c00 
c00 
c