BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 1e5393067 P4D 1e5393067 PUD 1eeb39067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 957 Comm: syz-executor.4 Not tainted 5.4.274-syzkaller-00002-g6f97bd951d82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8881f6f09d18 EFLAGS: 00010202
RAX: ffffffff8154d7aa RBX: 0000000000000101 RCX: ffff8881ecd51f80
RDX: 0000000080000101 RSI: 0000000000000000 RDI: ffff8881d4f731c0
RBP: ffff8881f6f09ec8 R08: ffffffff8154d3ee R09: ffffed103ede92a8
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000ffff9ec0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881d4f731c0
FS:  000055555611e480(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001f2ad8000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:538 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x4d/0x80 kernel/locking/spinlock.c:191
Code: 74 0c 48 c7 c7 90 3b eb 85 e8 ef 12 43 fd 48 83 3d 47 2d 9a 01 00 74 36 48 89 df e8 5d e8 fa fc 66 90 4c 89 34 24 ff 34 24 9d <bf> 01 00 00 00 e8 d9 d4 f3 fc 65 8b 05 1e 7f b1 7b 85 c0 74 08 48
RSP: 0018:ffff8881d2227c20 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881f6f4b600 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000246 RDI: ffff8881f6f4b600
RBP: ffff8881d2227d30 R08: ffffffff8154eca6 R09: ffff8881d2227d88
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000000f4240
R13: ffff8881d2227dc8 R14: 0000000000000246 R15: 0000000000000001
 hrtimer_start_expires include/linux/hrtimer.h:433 [inline]
 hrtimer_sleeper_start_expires kernel/time/hrtimer.c:1859 [inline]
 do_nanosleep+0x177/0x690 kernel/time/hrtimer.c:1935
 hrtimer_nanosleep+0x245/0x450 kernel/time/hrtimer.c:1991
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1231 [inline]
 __se_sys_clock_nanosleep+0x33c/0x3d0 kernel/time/posix-timers.c:1208
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f19ba50b335
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 f6 b9 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 4f ba ff ff 48 8b 04 24 48 83 c4 28 f7 d8
RSP: 002b:00007fff146fa380 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00007f19ba616f80 RCX: 00007f19ba50b335
RDX: 00007fff146fa3c0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f19ba618980 R08: 0000000000000000 R09: 00007fff1479a0b0
R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000cf82
R13: 00007f19ba616f8c R14: 0000000000000032 R15: 00007f19ba618980
Modules linked in:
CR2: 0000000000000000
---[ end trace d53dd855165b1ae9 ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8881f6f09d18 EFLAGS: 00010202
RAX: ffffffff8154d7aa RBX: 0000000000000101 RCX: ffff8881ecd51f80
RDX: 0000000080000101 RSI: 0000000000000000 RDI: ffff8881d4f731c0
RBP: ffff8881f6f09ec8 R08: ffffffff8154d3ee R09: ffffed103ede92a8
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000ffff9ec0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881d4f731c0
FS:  000055555611e480(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001f2ad8000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	74 0c                	je     0xe
   2:	48 c7 c7 90 3b eb 85 	mov    $0xffffffff85eb3b90,%rdi
   9:	e8 ef 12 43 fd       	call   0xfd4312fd
   e:	48 83 3d 47 2d 9a 01 	cmpq   $0x0,0x19a2d47(%rip)        # 0x19a2d5d
  15:	00
  16:	74 36                	je     0x4e
  18:	48 89 df             	mov    %rbx,%rdi
  1b:	e8 5d e8 fa fc       	call   0xfcfae87d
  20:	66 90                	xchg   %ax,%ax
  22:	4c 89 34 24          	mov    %r14,(%rsp)
  26:	ff 34 24             	push   (%rsp)
  29:	9d                   	popf
* 2a:	bf 01 00 00 00       	mov    $0x1,%edi <-- trapping instruction
  2f:	e8 d9 d4 f3 fc       	call   0xfcf3d50d
  34:	65 8b 05 1e 7f b1 7b 	mov    %gs:0x7bb17f1e(%rip),%eax        # 0x7bb17f59
  3b:	85 c0                	test   %eax,%eax
  3d:	74 08                	je     0x47
  3f:	48                   	rex.W