binder: BINDER_SET_CONTEXT_MGR already set
binder: 5100:5105 ioctl 40046207 0 returned -16
INFO: task syz-executor2:5056 blocked for more than 140 seconds.
      Not tainted 4.9.117-g8b21e85 #19
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor2   D28936  5056  25634 0x00000004
 ffff880199cbb000 ffff8801aae75500 ffff8801ccad2a00 ffff88019a3c8000
 ffff8801db221c18 ffff8801cd5ff7b0 ffffffff839ebd0d ffffffff81235687
 0000000000000000 ffff880199cbb8c0 0000000600000007 ffff8801db2224e8
Call Trace:
 [<ffffffff839ed30f>] schedule+0x7f/0x1b0 kernel/sched/core.c:3553
 [<ffffffff839f7734>] rwsem_down_read_failed+0x1e4/0x320 kernel/locking/rwsem-xadd.c:260
 [<ffffffff81ee8e98>] call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94
 [<ffffffff839f6662>] __down_read arch/x86/include/asm/rwsem.h:65 [inline]
 [<ffffffff839f6662>] down_read+0x52/0xb0 kernel/locking/rwsem.c:24
 [<ffffffff815a5aac>] inode_lock_shared include/linux/fs.h:776 [inline]
 [<ffffffff815a5aac>] do_last fs/namei.c:3314 [inline]
 [<ffffffff815a5aac>] path_openat+0x17dc/0x3590 fs/namei.c:3534
 [<ffffffff815abb27>] do_filp_open+0x197/0x270 fs/namei.c:3568
 [<ffffffff8158386f>] do_open_execat+0x10f/0x640 fs/exec.c:844
 [<ffffffff81589bbf>] do_execveat_common.isra.40+0x68f/0x1f30 fs/exec.c:1723
 [<ffffffff8158bdc2>] do_execve fs/exec.c:1829 [inline]
 [<ffffffff8158bdc2>] SYSC_execve fs/exec.c:1910 [inline]
 [<ffffffff8158bdc2>] SyS_execve+0x42/0x50 fs/exec.c:1905
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839fcc13>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

Showing all locks held in the system:
2 locks held by khungtaskd/519:
 #0:  (rcu_read_lock){......}, at: [<ffffffff813667fc>] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline]
 #0:  (rcu_read_lock){......}, at: [<ffffffff813667fc>] watchdog+0x11c/0xa20 kernel/hung_task.c:239
 #1:  (tasklist_lock){.+.+..}, at: [<ffffffff81426017>] debug_show_all_locks+0x79/0x218 kernel/locking/lockdep.c:4336
2 locks held by getty/3659:
 #0:  (&tty->ldisc_sem){++++++}, at: [<ffffffff839fadb2>] ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:367
 #1:  (&ldata->atomic_read_lock){+.+...}, at: [<ffffffff821207f2>] n_tty_read+0x202/0x16e0 drivers/tty/n_tty.c:2142
2 locks held by syz-executor2/5056:
 #0:  (&sig->cred_guard_mutex){+.+.+.}, at: [<ffffffff81589473>] prepare_bprm_creds+0x53/0x110 fs/exec.c:1369
 #1:  (&type->i_mutex_dir_key#4){++++++}, at: [<ffffffff815a5aac>] inode_lock_shared include/linux/fs.h:776 [inline]
 #1:  (&type->i_mutex_dir_key#4){++++++}, at: [<ffffffff815a5aac>] do_last fs/namei.c:3314 [inline]
 #1:  (&type->i_mutex_dir_key#4){++++++}, at: [<ffffffff815a5aac>] path_openat+0x17dc/0x3590 fs/namei.c:3534

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

NMI backtrace for cpu 1
CPU: 1 PID: 519 Comm: khungtaskd Not tainted 4.9.117-g8b21e85 #19
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d849fd08 ffffffff81eb4be9 0000000000000000 0000000000000001
 0000000000000001 0000000000000001 ffffffff810b9bd0 ffff8801d849fd40
 ffffffff81ebfee7 0000000000000001 0000000000000000 0000000000000003
Call Trace:
 [<ffffffff81eb4be9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb4be9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81ebfee7>] nmi_cpu_backtrace.cold.2+0x48/0x87 lib/nmi_backtrace.c:99
 [<ffffffff81ebfe7a>] nmi_trigger_cpumask_backtrace+0x12a/0x14f lib/nmi_backtrace.c:60
 [<ffffffff810b9cd4>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
 [<ffffffff81366d94>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
 [<ffffffff81366d94>] check_hung_task kernel/hung_task.c:125 [inline]
 [<ffffffff81366d94>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
 [<ffffffff81366d94>] watchdog+0x6b4/0xa20 kernel/hung_task.c:239
 [<ffffffff8119d0ed>] kthread+0x26d/0x300 kernel/kthread.c:211
 [<ffffffff839fcddc>] 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: 5048 Comm: syz-executor2 Not tainted 4.9.117-g8b21e85 #19
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88019f2c9800 task.stack: ffff8801d3ac8000
RIP: 0010:[<ffffffff812365a7>] 
c [<ffffffff812365a7>] task_irq_context kernel/locking/lockdep.c:2968 [inline]
RIP: 0010:[<ffffffff812365a7>] 
c [<ffffffff812365a7>] __lock_acquire+0x3b7/0x4070 kernel/locking/lockdep.c:3290
RSP: 0018:ffff8801d3acf6d0  EFLAGS: 00000803
RAX: 0000000000000000 RBX: ffff88019f2ca118 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88019f2ca094
RBP: ffff8801d3acf878 R08: 0000000000000001 R09: 0000000000000001
R10: ffff88019f2c9800 R11: 1ffff10033e59422 R12: 00000000000004eb
R13: 0000000000000002 R14: ffff88019f2ca0b4 R15: 0000000000000000
FS:  00007fa299ee9700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000017ea000 CR3: 00000001c338a000 CR4: 00000000001606f0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Stack:
 0000000000000001
c ffff88019f2ca0c8
c ffffed0033e59418
c ffff88019f2c9800
c
 dffffc0000000000
c ffff8801d3acf748
c ffffffff81235687
c 0000000000000000
c
 ffff88019f2ca0c0
c 0000000600000007
c ffffffff8560dae0
c ffffffff839fc857
c
Call Trace:
 [<ffffffff8123acd0>] lock_acquire+0x130/0x3e0 kernel/locking/lockdep.c:3756
 [<ffffffff839fcb2e>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:112 [inline]
 [<ffffffff839fcb2e>] _raw_spin_lock_irqsave+0x4e/0x62 kernel/locking/spinlock.c:159
 [<ffffffff812215fb>] prepare_to_wait_event+0x6b/0x450 kernel/sched/wait.c:213
 [<ffffffff81907c8e>] request_wait_answer+0x22e/0x6e0 fs/fuse/dev.c:459
 [<ffffffff81908799>] __fuse_request_send+0x109/0x1b0 fs/fuse/dev.c:480
 [<ffffffff8190889d>] fuse_request_send+0x5d/0x70 fs/fuse/dev.c:493
 [<ffffffff81912af4>] fuse_simple_request+0x2f4/0x660 fs/fuse/dev.c:551
 [<ffffffff81918872>] create_new_entry.constprop.31+0x1a2/0x490 fs/fuse/dir.c:600
 [<ffffffff8191940e>] fuse_mkdir+0x21e/0x2c0 fs/fuse/dir.c:679
 [<ffffffff81599c19>] vfs_mkdir2+0x3c9/0x630 fs/namei.c:3820
 [<ffffffff815ac9a3>] SYSC_mkdirat fs/namei.c:3849 [inline]
 [<ffffffff815ac9a3>] SyS_mkdirat+0x213/0x260 fs/namei.c:3833
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839fcc13>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 
c82 
c94 
c08 
c00 
c00 
c4d 
c8d 
cb2 
cb4 
c08 
c00 
c00 
cba 
c02 
c00 
c00 
c00 
c4c 
c89 
cf6 
c85 
cc0 
c0f 
c45 
cc2 
c48 
cc1 
cee 
c03 
c48 
cba 
c00 
c00 
c00 
c00 
c00 
cfc 
cff 
cdf 
c0f 
cb6 
c34 
c16 
c<4c> 
c89 
cf2 
c83 
ce2 
c07 
c83 
cc2 
c03 
c40 
c38 
cf2 
c7c 
c09 
c40 
c84 
cf6 
c0f 
c85 
c3f 
c11 
c