BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 0 P4D 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.15.139-syzkaller-1068892-g05ef4ccb5774 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 0018:ffffc900001d07a0 EFLAGS: 00010246
RAX: 1ffff110244ab871 RBX: 0000000000000000 RCX: ffff88810b07a000
RDX: ffff88810a01c100 RSI: ffff88810b07a000 RDI: ffff88810dc6a780
RBP: ffffc900001d0840 R08: ffffffff83e3fe57 R09: ffffed1021abb855
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88810a01c100 R14: ffff88810dc6a854 R15: ffff88810a01c100
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000010c89a000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 dev_queue_xmit_nit+0x9a4/0xa40 net/core/dev.c:2349
 xmit_one net/core/dev.c:3616 [inline]
 dev_hard_start_xmit+0x149/0x620 net/core/dev.c:3637
 __dev_queue_xmit+0x18b4/0x2e70 net/core/dev.c:4252
 dev_queue_xmit+0x17/0x20 net/core/dev.c:4285
 tipc_l2_send_msg+0x296/0x320 net/tipc/bearer.c:514
 tipc_bearer_xmit_skb+0x2b1/0x3b0 net/tipc/bearer.c:560
 tipc_disc_timeout+0x6fa/0x8b0 net/tipc/discover.c:338
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1427
 expire_timers kernel/time/timer.c:1472 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1743
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1756
 __do_softirq+0x26d/0x5bf kernel/softirq.c:565
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:40 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:75 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:110 [inline]
RIP: 0010:acpi_idle_do_entry drivers/acpi/processor_idle.c:570 [inline]
RIP: 0010:acpi_idle_enter+0x416/0x760 drivers/acpi/processor_idle.c:705
Code: 89 de 48 83 e6 08 31 ff e8 77 6b a8 fc 48 83 e3 08 0f 85 b0 00 00 00 0f 1f 44 00 00 e8 23 67 a8 fc 0f 00 2d 7c 91 c1 00 fb f4 <fa> e9 e1 00 00 00 49 83 c7 04 4c 89 f8 48 c1 e8 03 42 0f b6 04 30
RSP: 0018:ffffc90000157c30 EFLAGS: 000002d3
RAX: ffffffff84c797dd RBX: 0000000000000000 RCX: ffff888100334f00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000157c70 R08: ffffffff84c797c9 R09: ffffed10200669e1
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff888101bb0804 R14: dffffc0000000000 R15: ffff88810638e864
 cpuidle_enter_state+0x5e1/0x1550 drivers/cpuidle/cpuidle.c:249
 cpuidle_enter+0x5f/0xa0 drivers/cpuidle/cpuidle.c:364
 call_cpuidle kernel/sched/idle.c:158 [inline]
 cpuidle_idle_call kernel/sched/idle.c:239 [inline]
 do_idle+0x36b/0x5d0 kernel/sched/idle.c:306
 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:403
 start_secondary+0x2e6/0x3a0 arch/x86/kernel/smpboot.c:281
 secondary_startup_64_no_verify+0xb1/0xbb
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace c00d969d40d3bb22 ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 0018:ffffc900001d07a0 EFLAGS: 00010246
RAX: 1ffff110244ab871 RBX: 0000000000000000 RCX: ffff88810b07a000
RDX: ffff88810a01c100 RSI: ffff88810b07a000 RDI: ffff88810dc6a780
RBP: ffffc900001d0840 R08: ffffffff83e3fe57 R09: ffffed1021abb855
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88810a01c100 R14: ffff88810dc6a854 R15: ffff88810a01c100
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000010c89a000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	89 de                	mov    %ebx,%esi
   2:	48 83 e6 08          	and    $0x8,%rsi
   6:	31 ff                	xor    %edi,%edi
   8:	e8 77 6b a8 fc       	call   0xfca86b84
   d:	48 83 e3 08          	and    $0x8,%rbx
  11:	0f 85 b0 00 00 00    	jne    0xc7
  17:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  1c:	e8 23 67 a8 fc       	call   0xfca86744
  21:	0f 00 2d 7c 91 c1 00 	verw   0xc1917c(%rip)        # 0xc191a4
  28:	fb                   	sti
  29:	f4                   	hlt
* 2a:	fa                   	cli <-- trapping instruction
  2b:	e9 e1 00 00 00       	jmp    0x111
  30:	49 83 c7 04          	add    $0x4,%r15
  34:	4c 89 f8             	mov    %r15,%rax
  37:	48 c1 e8 03          	shr    $0x3,%rax
  3b:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax