binder: 2092:2095 Acquire 1 refcount change on invalid ref 65536 ret -22
binder: 2092:2095 Release 1 refcount change on invalid ref 0 ret -22
binder: BINDER_SET_CONTEXT_MGR already set
binder: 2092:2105 Acquire 1 refcount change on invalid ref 65536 ret -22
binder: 2092:2095 ioctl 40046207 0 returned -16
INFO: task syz-executor3:2114 blocked for more than 120 seconds.
      Not tainted 4.4.133-g3f51ea2 #51
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor3   D ffff8800b279f4e0 26104  2114   3910 0x00000004
 ffff8800b279f4e0 0000000000000089 ffffea00027df180 69b31e14a7a626e5
 ffff8800b279f600 ffff8801db21fdb8 ffff8801db21fde0 ffff8801db21f4d8
 ffff8801db21f4c0 ffff8800b9561800 ffff8800ba0bb000 0000000000000000
Call Trace:
 [<ffffffff838b2f2a>] schedule+0x7a/0x1b0 kernel/sched/core.c:3359
 [<ffffffff838be341>] schedule_timeout+0x481/0x8b0 kernel/time/timer.c:1515
 [<ffffffff838b0dea>] io_schedule_timeout+0x1ba/0x390 kernel/sched/core.c:4941
 [<ffffffff838b417b>] io_schedule include/linux/sched.h:447 [inline]
 [<ffffffff838b417b>] bit_wait_io+0x1b/0xd0 kernel/sched/wait.c:595
 [<ffffffff838b3ce2>] __wait_on_bit_lock.part.4+0x92/0x140 kernel/sched/wait.c:434
 [<ffffffff838b3d99>] __wait_on_bit_lock+0x9/0x10 kernel/sched/wait.c:427
 [<ffffffff8141cbad>] __lock_page+0x17d/0x1f0 mm/filemap.c:888
 [<ffffffff815b943b>] lock_page include/linux/pagemap.h:458 [inline]
 [<ffffffff815b943b>] __generic_file_splice_read+0x7eb/0xbb0 fs/splice.c:412
 [<ffffffff815b98e2>] generic_file_splice_read+0xe2/0x1c0 fs/splice.c:542
 [<ffffffff815b5a37>] do_splice_to+0xf7/0x140 fs/splice.c:1154
 [<ffffffff815b5cc2>] splice_direct_to_actor+0x242/0x830 fs/splice.c:1226
 [<ffffffff815b6453>] do_splice_direct+0x1a3/0x270 fs/splice.c:1337
 [<ffffffff81520174>] do_sendfile+0x4e4/0xb80 fs/read_write.c:1227
 [<ffffffff81522163>] SYSC_sendfile64 fs/read_write.c:1282 [inline]
 [<ffffffff81522163>] SyS_sendfile64+0xc3/0x150 fs/read_write.c:1274
 [<ffffffff838c0f65>] entry_SYSCALL_64_fastpath+0x22/0x9e
no locks held by syz-executor3/2114.
Sending NMI to all CPUs:
NMI backtrace for cpu 0
CPU: 0 PID: 1 Comm: init Not tainted 4.4.133-g3f51ea2 #51
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d99a8000 task.stack: ffff8801d99b0000
RIP: 0010:[<ffffffff8123e9b3>]  [<ffffffff8123e9b3>] atomic_cmpxchg arch/x86/include/asm/atomic.h:177 [inline]
RIP: 0010:[<ffffffff8123e9b3>]  [<ffffffff8123e9b3>] queued_spin_trylock include/asm-generic/qspinlock.h:84 [inline]
RIP: 0010:[<ffffffff8123e9b3>]  [<ffffffff8123e9b3>] do_raw_spin_trylock+0x43/0xd0 kernel/locking/spinlock_debug.c:143
RSP: 0018:ffff8801d99b7b60  EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffffff85985908 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffffff85985908
RBP: ffff8801d99b7b70 R08: ffff8801d99a8950 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85985908
R13: 0000000000000202 R14: ffffffff85985908 R15: 0000000000000001
FS:  00007f8cc78107a0(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001922800 CR3: 00000000b640b000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 00000000000000c7 ffffffff85985908 ffff8801d99b7b98 ffffffff838c02e0
 0000000000000202 00000000000000c7 00000000000001a7 ffff8801d99b7be0
 ffffffff81c52e07 ffffffff81c52e2f ffff8800b619e820 0000000000000000
Call Trace:
 [<ffffffff838c02e0>] __raw_spin_trylock include/linux/spinlock_api_smp.h:91 [inline]
 [<ffffffff838c02e0>] _raw_spin_trylock+0x20/0x90 kernel/locking/spinlock.c:135
 [<ffffffff81c52e07>] avc_reclaim_node security/selinux/avc.c:528 [inline]
 [<ffffffff81c52e07>] avc_alloc_node+0x137/0x3d0 security/selinux/avc.c:561
 [<ffffffff81c53ba8>] avc_insert security/selinux/avc.c:672 [inline]
 [<ffffffff81c53ba8>] avc_compute_av+0x178/0x610 security/selinux/avc.c:978
 [<ffffffff81c557b3>] avc_has_perm_noaudit+0x323/0x450 security/selinux/avc.c:1114
 [<ffffffff81c5ef99>] selinux_inode_permission+0x269/0x480 security/selinux/hooks.c:2902
 [<ffffffff81c4c4d9>] security_inode_permission+0xb9/0x100 security/security.c:600
 [<ffffffff8153bc23>] __inode_permission2+0x93/0x240 fs/namei.c:425
 [<ffffffff8153be2f>] inode_permission2+0x2f/0x110 fs/namei.c:475
 [<ffffffff81519743>] SYSC_faccessat fs/open.c:395 [inline]
 [<ffffffff81519743>] SyS_faccessat fs/open.c:346 [inline]
 [<ffffffff81519743>] SYSC_access fs/open.c:426 [inline]
 [<ffffffff81519743>] SyS_access+0x2a3/0x680 fs/open.c:424
 [<ffffffff838c0f65>] entry_SYSCALL_64_fastpath+0x22/0x9e
Code: 0f b6 14 02 48 89 f8 48 89 fb 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 82 00 00 00 8b 03 85 c0 75 0d ba 01 00 00 00 f0 0f b1 13 <85> c0 74 07 5b 31 c0 41 5c 5d c3 48 8d 7b 08 48 b8 00 00 00 00 
NMI backtrace for cpu 1
CPU: 1 PID: 491 Comm: khungtaskd Not tainted 4.4.133-g3f51ea2 #51
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800bac89800 task.stack: ffff8801d8c40000
RIP: 0010:[<ffffffff810bfe16>]  [<ffffffff810bfe16>] native_apic_mem_write arch/x86/include/asm/apic.h:94 [inline]
RIP: 0010:[<ffffffff810bfe16>]  [<ffffffff810bfe16>] __default_send_IPI_dest_field arch/x86/include/asm/ipi.h:119 [inline]
RIP: 0010:[<ffffffff810bfe16>]  [<ffffffff810bfe16>] _flat_send_IPI_mask arch/x86/kernel/apic/apic_flat_64.c:61 [inline]
RIP: 0010:[<ffffffff810bfe16>]  [<ffffffff810bfe16>] flat_send_IPI_mask+0xf6/0x1a0 arch/x86/kernel/apic/apic_flat_64.c:69
RSP: 0018:ffff8801d8c47cc8  EFLAGS: 00000046
RAX: 0000000003000000 RBX: 0000000000000c00 RCX: 0000000000000000
RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fb300
RBP: ffff8801d8c47cf0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246
R13: 0000000000000003 R14: 0000000000000002 R15: ffffffff8446f7a0
FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1fff09b000 CR3: 00000001cc37a000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff8446f7a0 ffffffff84a18ae0 0000000000000007 fffffbfff0942c0c
 0000000000000040 ffff8801d8c47d10 ffffffff810b5dd1 ffffffff83c0b220
 0000000000000003 ffff8801d8c47d68 ffffffff81e19543 ffff8800ba0bb000
Call Trace:
 [<ffffffff810b5dd1>] nmi_raise_cpu_backtrace+0x61/0x80 arch/x86/kernel/apic/hw_nmi.c:33
 [<ffffffff81e19543>] nmi_trigger_all_cpu_backtrace.cold.4+0x70/0xad lib/nmi_backtrace.c:85
 [<ffffffff810b5e74>] arch_trigger_all_cpu_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 [<ffffffff8141a209>] trigger_all_cpu_backtrace include/linux/nmi.h:44 [inline]
 [<ffffffff8141a209>] check_hung_task kernel/hung_task.c:125 [inline]
 [<ffffffff8141a209>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
 [<ffffffff8141a209>] watchdog.cold.1+0xd3/0xee kernel/hung_task.c:238
 [<ffffffff81190818>] kthread+0x268/0x300 kernel/kthread.c:211
 [<ffffffff838c1395>] ret_from_fork+0x55/0x80 arch/x86/entry/entry_64.S:510
Code: b3 5f ff f6 c4 10 75 e2 44 89 e8 c1 e0 18 89 04 25 10 b3 5f ff 44 89 f2 09 da 80 cf 04 41 83 fe 02 0f 44 d3 89 14 25 00 b3 5f ff <41> f7 c4 00 02 00 00 75 1a 4c 89 e7 57 9d 0f 1f 44 00 00 e8 a2