audit: type=1804 audit(1583326164.996:85): pid=17129 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir215916698/syzkaller.Y6z7aC/417/bus" dev="sda1" ino=18026 res=1
overlayfs: failed to resolve './file0': -2
INFO: rcu_sched detected stalls on CPUs/tasks:
	0-...: (10501 ticks this GP) idle=ad6/140000000000002/0 softirq=39389/39389 fqs=6 
	(detected by 1, t=10503 jiffies, g=7301, c=7300, q=1)
Sending NMI from CPU 1 to CPUs 0:
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.321 msecs
NMI backtrace for cpu 0
CPU: 0 PID: 17129 Comm: syz-executor.5 Not tainted 4.14.172-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88804a4ac2c0 task.stack: ffff888050c58000
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:112 [inline]
RIP: 0010:unwind_next_frame+0x551/0x17a0 arch/x86/kernel/unwind_orc.c:348
RSP: 0018:ffff8880aea07670 EFLAGS: 00000246
RAX: 0000000000058002 RBX: ffff8880aea07720 RCX: 000000000011e5ea
RDX: 0000000000000003 RSI: 0000000000058003 RDI: ffffffff896c0240
RBP: 1ffff11015d40ed5 R08: 0000000000000001 R09: ffff8880aea07e28
R10: ffff8880aea07755 R11: 0000000000058071 R12: ffffffff86800253
R13: ffff8880aea07758 R14: ffff8880aea07768 R15: 0000000000000002
FS:  00007f673bb22700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30623000 CR3: 00000000a3a75000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __save_stack_trace+0x6b/0xd0 arch/x86/kernel/stacktrace.c:44
 save_stack+0x32/0xa0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc mm/kasan/kasan.c:551 [inline]
 kasan_kmalloc+0xbf/0xe0 mm/kasan/kasan.c:529
 kmem_cache_alloc+0x127/0x770 mm/slab.c:3552
 dst_alloc+0xe6/0x190 net/core/dst.c:107
 __ip6_dst_alloc+0x2e/0x50 net/ipv6/route.c:357
 ip6_dst_alloc+0x2a/0x1d0 net/ipv6/route.c:370
 icmp6_dst_alloc+0x155/0x580 net/ipv6/route.c:1766
 ndisc_send_skb+0xc0f/0x11e0 net/ipv6/ndisc.c:463
 ndisc_send_rs+0x125/0x630 net/ipv6/ndisc.c:677
 addrconf_rs_timer+0x289/0x5a0 net/ipv6/addrconf.c:3757
 call_timer_fn+0x14a/0x650 kernel/time/timer.c:1279
 expire_timers kernel/time/timer.c:1318 [inline]
 __run_timers kernel/time/timer.c:1636 [inline]
 __run_timers kernel/time/timer.c:1604 [inline]
 run_timer_softirq+0x52a/0x1390 kernel/time/timer.c:1649
 __do_softirq+0x254/0x9bf kernel/softirq.c:288
 invoke_softirq kernel/softirq.c:368 [inline]
 irq_exit+0x15b/0x1a0 kernel/softirq.c:409
 exiting_irq arch/x86/include/asm/apic.h:648 [inline]
 smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1102
 apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x50/0x80 kernel/locking/spinlock.c:200
RSP: 0018:ffff888050c5f290 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0fa2ce3 RBX: ffff88804a4ac2c0 RCX: 1ffff11009495976
RDX: dffffc0000000000 RSI: ffff88804a4acb90 RDI: ffff88804a4acb3c
RBP: ffff8880aea2b540 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880aea2b540
R13: ffff88809e8cc480 R14: 0000000000000000 R15: ffff8880aea2be90
 finish_lock_switch kernel/sched/sched.h:1346 [inline]
 finish_task_switch+0x178/0x620 kernel/sched/core.c:2675
 context_switch kernel/sched/core.c:2811 [inline]
 __schedule+0x7c0/0x1ca0 kernel/sched/core.c:3384
 preempt_schedule_irq+0xb0/0x140 kernel/sched/core.c:3611
 retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:lock_acquire+0x1ec/0x3f0 kernel/locking/lockdep.c:3997
RSP: 0018:ffff888050c5f488 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0fa2ce1 RBX: ffff88804a4ac2c0 RCX: 00000000460e3f02
RDX: dffffc0000000000 RSI: ffff88804a4acb90 RDI: 0000000000000286
RBP: ffff88809964f438 R08: 0000000000006365 R09: ffffffff8a08d3e8
R10: ffff88804a4acb90 R11: ffff88804a4ac2c0 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
 down_read+0x37/0xa0 kernel/locking/rwsem.c:24
 ext4_xattr_get+0x107/0x860 fs/ext4/xattr.c:647
 __vfs_getxattr+0xb9/0x100 fs/xattr.c:312
 cap_inode_need_killpriv+0x3c/0x50 security/commoncap.c:307
 security_inode_need_killpriv+0x66/0xa0 security/security.c:791
 dentry_needs_remove_privs.part.0+0x1e/0x60 fs/inode.c:1796
 dentry_needs_remove_privs include/linux/fs.h:3338 [inline]
 file_remove_privs+0x26c/0x430 fs/inode.c:1836
 __generic_file_write_iter+0x14c/0x590 mm/filemap.c:3118
 ext4_file_write_iter+0x281/0xdc0 fs/ext4/file.c:270
 call_write_iter include/linux/fs.h:1777 [inline]
 do_iter_readv_writev+0x3df/0x600 fs/read_write.c:675
 do_iter_write fs/read_write.c:954 [inline]
 do_iter_write+0x152/0x550 fs/read_write.c:935
 vfs_iter_write+0x70/0xa0 fs/read_write.c:967
 iter_file_splice_write+0x52e/0xa10 fs/splice.c:749
 do_splice_from fs/splice.c:851 [inline]
 direct_splice_actor+0x115/0x160 fs/splice.c:1018
 splice_direct_to_actor+0x27e/0x730 fs/splice.c:973
 do_splice_direct+0x164/0x210 fs/splice.c:1061
 do_sendfile+0x469/0xaf0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0xff/0x110 fs/read_write.c:1488
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c479
RSP: 002b:00007f673bb21c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f673bb226d4 RCX: 000000000045c479
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000020008 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000008d1 R14: 00000000004cb364 R15: 000000000076bf2c
Code: 89 fe 48 c1 ee 03 0f b6 34 16 48 89 fa 83 e2 07 83 c2 03 40 38 f2 7c 09 40 84 f6 0f 85 f0 0d 00 00 8d 70 01 8b 0c 8d 38 02 56 89 <48> ba 00 00 00 00 00 fc ff df 48 8d 3c b5 38 02 56 89 49 89 f8 
rcu_sched kthread starved for 10472 jiffies! g7301 c7300 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1
INFO: rcu_preempt self-detected stall on CPU
rcu_sched       R
	0-...: (1 GPs behind) idle=ad6/140000000000002/0 softirq=39388/39389 fqs=4 
  running task    
	
29984     9      2 0x80000000
 (t=10500 jiffies g=9670 c=9669 q=190)
Call Trace:
rcu_preempt kthread starved for 10479 jiffies! g9670 c9669 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1
rcu_preempt     R
  running task    29920     8      2 0x80000000
Call Trace:
 schedule+0x8d/0x1b0 kernel/sched/core.c:3428
 schedule_timeout+0x43c/0xe40 kernel/time/timer.c:1746
 schedule+0x8d/0x1b0 kernel/sched/core.c:3428
 schedule_timeout+0x43c/0xe40 kernel/time/timer.c:1746
 rcu_gp_kthread+0xb8e/0x1ce0 kernel/rcu/tree.c:2255
 kthread+0x30d/0x420 kernel/kthread.c:232
 rcu_gp_kthread+0xb8e/0x1ce0 kernel/rcu/tree.c:2255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
libceph: connect [d::]:6789 error -101
 kthread+0x30d/0x420 kernel/kthread.c:232
libceph: mon0 [d::]:6789 connect error
libceph: connect [d::]:6789 error -101
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
libceph: mon0 [d::]:6789 connect error
NMI backtrace for cpu 0
ceph: No mds server is up or the cluster is laggy
CPU: 0 PID: 17129 Comm: syz-executor.5 Not tainted 4.14.172-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x13e/0x194 lib/dump_stack.c:58
 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x139/0x17e lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:158 [inline]
 rcu_dump_cpu_stacks+0x16d/0x1b8 kernel/rcu/tree.c:1396
 print_cpu_stall kernel/rcu/tree.c:1542 [inline]
 check_cpu_stall kernel/rcu/tree.c:1610 [inline]
 __rcu_pending kernel/rcu/tree.c:3390 [inline]
 rcu_pending kernel/rcu/tree.c:3452 [inline]
 rcu_check_callbacks.cold+0x490/0xdaa kernel/rcu/tree.c:2792
 update_process_times+0x29/0x60 kernel/time/timer.c:1590
 tick_sched_handle+0x7d/0x150 kernel/time/tick-sched.c:165
 tick_sched_timer+0x3e/0x120 kernel/time/tick-sched.c:1223
 __run_hrtimer kernel/time/hrtimer.c:1223 [inline]
 __hrtimer_run_queues+0x25c/0xbb0 kernel/time/hrtimer.c:1287
 hrtimer_interrupt+0x1e6/0x5e0 kernel/time/hrtimer.c:1321
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline]
 smp_apic_timer_interrupt+0x117/0x5e0 arch/x86/kernel/apic/apic.c:1100
 apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:__read_once_size_nocheck.constprop.0+0x6/0x10 include/linux/compiler.h:202
RSP: 0018:ffff8880aea07650 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10
RAX: ffffffff863fc337 RBX: 1ffff11015d40ecb RCX: 1ffff11015d40ef0
RDX: ffff888050c5f4d8 RSI: ffff8880aea07678 RDI: ffff888050c5f4d0
RBP: ffff888050c5f4d0 R08: 0000000000000000 R09: ffff888050c5f488
R10: ffff8880aea077a5 R11: 0000000000058071 R12: ffff8880aea077b8
R13: dffffc0000000000 R14: ffff8880aea077b8 R15: 0000000000000001
 deref_stack_reg arch/x86/kernel/unwind_orc.c:292 [inline]
 deref_stack_reg+0x8a/0xc0 arch/x86/kernel/unwind_orc.c:286
 unwind_next_frame+0xa06/0x17a0 arch/x86/kernel/unwind_orc.c:425
 __save_stack_trace+0x6b/0xd0 arch/x86/kernel/stacktrace.c:44
 save_stack+0x32/0xa0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc mm/kasan/kasan.c:551 [inline]
 kasan_kmalloc+0xbf/0xe0 mm/kasan/kasan.c:529
 kmem_cache_alloc_trace+0x14d/0x7b0 mm/slab.c:3618
 kmalloc include/linux/slab.h:488 [inline]
 dst_cow_metrics_generic+0x48/0x130 net/core/dst.c:210
 ipv6_cow_metrics+0x70/0x180 net/ipv6/route.c:196
 dst_metrics_write_ptr include/net/dst.h:146 [inline]
 dst_metric_set include/net/dst.h:207 [inline]
 icmp6_dst_alloc+0x3f6/0x580 net/ipv6/route.c:1780
 ndisc_send_skb+0xc0f/0x11e0 net/ipv6/ndisc.c:463
 ndisc_send_rs+0x125/0x630 net/ipv6/ndisc.c:677
 addrconf_rs_timer+0x289/0x5a0 net/ipv6/addrconf.c:3757
 call_timer_fn+0x14a/0x650 kernel/time/timer.c:1279
 expire_timers kernel/time/timer.c:1318 [inline]
 __run_timers kernel/time/timer.c:1636 [inline]
 __run_timers kernel/time/timer.c:1604 [inline]
 run_timer_softirq+0x52a/0x1390 kernel/time/timer.c:1649
 __do_softirq+0x254/0x9bf kernel/softirq.c:288
 invoke_softirq kernel/softirq.c:368 [inline]
 irq_exit+0x15b/0x1a0 kernel/softirq.c:409
 exiting_irq arch/x86/include/asm/apic.h:648 [inline]
 smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1102
 apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x50/0x80 kernel/locking/spinlock.c:200
RSP: 0018:ffff888050c5f290 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0fa2ce3 RBX: ffff88804a4ac2c0 RCX: 1ffff11009495976
RDX: dffffc0000000000 RSI: ffff88804a4acb90 RDI: ffff88804a4acb3c
RBP: ffff8880aea2b540 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880aea2b540
R13: ffff88809e8cc480 R14: 0000000000000000 R15: ffff8880aea2be90
 finish_lock_switch kernel/sched/sched.h:1346 [inline]
 finish_task_switch+0x178/0x620 kernel/sched/core.c:2675
 context_switch kernel/sched/core.c:2811 [inline]
 __schedule+0x7c0/0x1ca0 kernel/sched/core.c:3384
 preempt_schedule_irq+0xb0/0x140 kernel/sched/core.c:3611
 retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:lock_acquire+0x1ec/0x3f0 kernel/locking/lockdep.c:3997
RSP: 0018:ffff888050c5f488 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0fa2ce1 RBX: ffff88804a4ac2c0 RCX: 00000000460e3f02
RDX: dffffc0000000000 RSI: ffff88804a4acb90 RDI: 0000000000000286
RBP: ffff88809964f438 R08: 0000000000006365 R09: ffffffff8a08d3e8
R10: ffff88804a4acb90 R11: ffff88804a4ac2c0 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
 down_read+0x37/0xa0 kernel/locking/rwsem.c:24
 ext4_xattr_get+0x107/0x860 fs/ext4/xattr.c:647
 __vfs_getxattr+0xb9/0x100 fs/xattr.c:312
 cap_inode_need_killpriv+0x3c/0x50 security/commoncap.c:307
 security_inode_need_killpriv+0x66/0xa0 security/security.c:791
 dentry_needs_remove_privs.part.0+0x1e/0x60 fs/inode.c:1796
 dentry_needs_remove_privs include/linux/fs.h:3338 [inline]
 file_remove_privs+0x26c/0x430 fs/inode.c:1836
 __generic_file_write_iter+0x14c/0x590 mm/filemap.c:3118
 ext4_file_write_iter+0x281/0xdc0 fs/ext4/file.c:270
 call_write_iter include/linux/fs.h:1777 [inline]
 do_iter_readv_writev+0x3df/0x600 fs/read_write.c:675
 do_iter_write fs/read_write.c:954 [inline]
 do_iter_write+0x152/0x550 fs/read_write.c:935
 vfs_iter_write+0x70/0xa0 fs/read_write.c:967
 iter_file_splice_write+0x52e/0xa10 fs/splice.c:749
 do_splice_from fs/splice.c:851 [inline]
 direct_splice_actor+0x115/0x160 fs/splice.c:1018
 splice_direct_to_actor+0x27e/0x730 fs/splice.c:973
 do_splice_direct+0x164/0x210 fs/splice.c:1061
 do_sendfile+0x469/0xaf0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0xff/0x110 fs/read_write.c:1488
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c479
RSP: 002b:00007f673bb21c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f673bb226d4 RCX: 000000000045c479
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000020008 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000008d1 R14: 00000000004cb364 R15: 000000000076bf2c
libceph: connect [d::]:6789 error -101
libceph: mon0 [d::]:6789 connect error