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: 0 PID: 5573 Comm: syz-executor 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:ffff8881f6e09d18 EFLAGS: 00010206
RAX: ffffffff8154d7aa RBX: 0000000000000100 RCX: ffff8881de430000
RDX: 0000000080000100 RSI: 0000000000000000 RDI: ffff8881e482b1c0
RBP: ffff8881f6e09ec8 R08: ffffffff8154d3ee R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: 00000000ffffc958
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881e482b1c0
FS:  0000555557419500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001e8427000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
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:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:186
Code: 00 00 00 0f 1f 00 be 0c 00 00 00 48 c7 c7 a0 a7 f1 85 e8 3f de 2f 00 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 04 24 <65> 48 8b 0d 54 51 9e 7e 65 8b 15 59 51 9e 7e f7 c2 00 01 1f 00 74
RSP: 0018:ffff8881e6fc7c40 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffffffff81a0bc03 RBX: ffff8881e8188148 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: 000000000000001f
RBP: 0000000000000008 R08: ffffffff81a0bb97 R09: ffffffff846031dc
R10: ffffffff84800000 R11: dffffc0000000000 R12: ffff8881e8188110
R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff8881e6fc7d80
 __d_alloc+0x103/0x6a0 fs/dcache.c:1705
 d_alloc+0x45/0x1c0 fs/dcache.c:1770
 __lookup_hash+0xca/0x240 fs/namei.c:1619
 filename_create+0x202/0x750 fs/namei.c:3785
 user_path_create fs/namei.c:3842 [inline]
 do_symlinkat+0x104/0x400 fs/namei.c:4296
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f720919e107
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe9dacad58 EFLAGS: 00000206 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f720919e107
RDX: 00007f720920da3b RSI: 00000000ffffff9c RDI: 00007f720920c9db
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000032
R13: 0000000000001388 R14: 00007ffe9dacae10 R15: 00007ffe9dacae10
Modules linked in:
CR2: 0000000000000000
---[ end trace e994ae5fd8a97d05 ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8881f6e09d18 EFLAGS: 00010206
RAX: ffffffff8154d7aa RBX: 0000000000000100 RCX: ffff8881de430000
RDX: 0000000080000100 RSI: 0000000000000000 RDI: ffff8881e482b1c0
RBP: ffff8881f6e09ec8 R08: ffffffff8154d3ee R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: 00000000ffffc958
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881e482b1c0
FS:  0000555557419500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001e8427000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	00 00                	add    %al,(%rax)
   2:	0f 1f 00             	nopl   (%rax)
   5:	be 0c 00 00 00       	mov    $0xc,%esi
   a:	48 c7 c7 a0 a7 f1 85 	mov    $0xffffffff85f1a7a0,%rdi
  11:	e8 3f de 2f 00       	call   0x2fde55
  16:	c3                   	ret
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	90                   	nop
  23:	90                   	nop
  24:	90                   	nop
  25:	48 8b 04 24          	mov    (%rsp),%rax
* 29:	65 48 8b 0d 54 51 9e 	mov    %gs:0x7e9e5154(%rip),%rcx        # 0x7e9e5185 <-- trapping instruction
  30:	7e
  31:	65 8b 15 59 51 9e 7e 	mov    %gs:0x7e9e5159(%rip),%edx        # 0x7e9e5191
  38:	f7 c2 00 01 1f 00    	test   $0x1f0100,%edx
  3e:	74                   	.byte 0x74