==================================================================
BUG: KASAN: stack-out-of-bounds in profile_pc+0xa4/0xe0 arch/x86/kernel/time.c:42
Read of size 8 at addr ffffc90001a6fb00 by task syz-executor173/3592

CPU: 1 PID: 3592 Comm: syz-executor173 Not tainted 5.17.0-rc7-syzkaller-00020-gea4424be1688 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
 print_address_description+0x65/0x3a0 mm/kasan/report.c:255
 __kasan_report mm/kasan/report.c:442 [inline]
 kasan_report+0x19a/0x1f0 mm/kasan/report.c:459
 profile_pc+0xa4/0xe0 arch/x86/kernel/time.c:42
 profile_tick+0xcd/0x120 kernel/profile.c:336
 tick_sched_handle kernel/time/tick-sched.c:227 [inline]
 tick_sched_timer+0x287/0x420 kernel/time/tick-sched.c:1428
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4cb/0xa60 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x3b3/0x1040 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0xf9/0x270 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 c2 49 b4 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 27 f1 3c f7 65 8b 05 88 67 e4 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc90001a6fb00 EFLAGS: 00000206
RAX: 1e0f832d4935d800 RBX: 1ffff9200034df64 RCX: ffffffff81674de1
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc90001a6fba0 R08: dffffc0000000000 R09: fffffbfff1ffbbc9
R10: fffffbfff1ffbbc9 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff9200034df60 R14: ffffc90001a6fb20 R15: 0000000000000246
 spin_unlock_irqrestore include/linux/spinlock.h:404 [inline]
 ref_tracker_dir_exit+0x212/0x470 lib/ref_tracker.c:37
 __put_net+0x15/0x60 net/core/net_namespace.c:642
 put_net include/net/net_namespace.h:268 [inline]
 put_net_track include/net/net_namespace.h:342 [inline]
 __sk_destruct+0x4b6/0x850 net/core/sock.c:2044
 tun_detach drivers/net/tun.c:693 [inline]
 tun_chr_close+0xed/0x130 drivers/net/tun.c:3405
 __fput+0x3fc/0x870 fs/file_table.c:317
 task_work_run+0x146/0x1c0 kernel/task_work.c:164
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0x63b/0x22f0 kernel/exit.c:806
 do_group_exit+0x2af/0x2b0 kernel/exit.c:935
 __do_sys_exit_group+0x13/0x20 kernel/exit.c:946
 __se_sys_exit_group+0x10/0x10 kernel/exit.c:944
 __x64_sys_exit_group+0x37/0x40 kernel/exit.c:944
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8caf2dcb99
Code: Unable to access opcode bytes at RIP 0x7f8caf2dcb6f.
RSP: 002b:00007ffceebdf308 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f8caf35f450 RCX: 00007f8caf2dcb99
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffffffffffb8 R09: 00007ffceebdf400
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8caf35f450
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
 </TASK>


addr ffffc90001a6fb00 is located in stack of task syz-executor173/3592 at offset 0 in frame:
 _raw_spin_unlock_irqrestore+0x0/0x130 kernel/locking/spinlock.c:187

this frame has 1 object:
 [32, 40) 'flags.i.i.i.i'

Memory state around the buggy address:
 ffffc90001a6fa00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90001a6fa80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90001a6fb00: f1 f1 f1 f1 00 f3 f3 f3 00 00 00 00 00 00 00 00
                   ^
 ffffc90001a6fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90001a6fc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
----------------
Code disassembly (best guess):
   0:	9c                   	pushfq
   1:	8f 44 24 20          	popq   0x20(%rsp)
   5:	42 80 3c 23 00       	cmpb   $0x0,(%rbx,%r12,1)
   a:	74 08                	je     0x14
   c:	4c 89 f7             	mov    %r14,%rdi
   f:	e8 c2 49 b4 f7       	callq  0xf7b449d6
  14:	f6 44 24 21 02       	testb  $0x2,0x21(%rsp)
  19:	75 4e                	jne    0x69
  1b:	41 f7 c7 00 02 00 00 	test   $0x200,%r15d
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 27 f1 3c f7       	callq  0xf73cf156 <-- trapping instruction
  2f:	65 8b 05 88 67 e4 75 	mov    %gs:0x75e46788(%rip),%eax        # 0x75e467be
  36:	85 c0                	test   %eax,%eax
  38:	74 3f                	je     0x79
  3a:	48                   	rex.W
  3b:	c7                   	.byte 0xc7
  3c:	04 24                	add    $0x24,%al
  3e:	0e                   	(bad)
  3f:	36                   	ss