BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 1d82c2067 P4D 1d82c2067 PUD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1788 Comm: syz.2.461 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8881f6e09cf0 EFLAGS: 00010206
RAX: ffffffff8150a590 RBX: 0000000000000100 RCX: ffff8881e0d86e40
RDX: 0000000080000100 RSI: 0000000000000000 RDI: ffff8881e1e4f1c0
RBP: ffff8881f6e09d30 R08: 0000000000000004 R09: 0000000000000003
R10: ffffed103edc1398 R11: 1ffff1103edc1398 R12: 00000000ffffb8f0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881e1e4f1c0
FS:  00007f1a6f40a6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001db2bc000 CR4: 00000000003406b0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 call_timer_fn+0x3c/0x380 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x81d/0xb60 kernel/time/timer.c:1817
 run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x236/0x660 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x197/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:539 [inline]
 smp_apic_timer_interrupt+0x11d/0x490 arch/x86/kernel/apic/apic.c:1161
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:destroy_inode fs/inode.c:280 [inline]
RIP: 0010:evict+0x744/0x880 fs/inode.c:627
Code: 85 5a 01 00 00 48 89 df e8 39 64 ff ff 4d 8d 7e 08 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 5f 34 f3 ff 49 8b 07 <48> 85 c0 74 2c 48 89 df ff d0 4d 8d 7e 10 4c 89 f8 48 c1 e8 03 42
RSP: 0018:ffff8881cb397ca0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8881dd4dcbc0 RCX: 0000000000080000
RDX: ffffc9000294c000 RSI: 000000000000666d RDI: 000000000000666e
RBP: ffff8881cb397dc8 R08: dffffc0000000000 R09: ffffed103edcb12c
R10: ffffed103edcb12c R11: 1ffff1103edcb12b R12: dffffc0000000000
R13: ffff8881dd4dcc48 R14: ffffffff850487a0 R15: ffffffff850487a8
 iput_final fs/inode.c:1652 [inline]
 iput+0x67d/0x810 fs/inode.c:1678
 __sock_release net/socket.c:603 [inline]
 sock_release+0x111/0x140 net/socket.c:611
 __sys_socketpair+0x550/0x5a0 net/socket.c:1597
 __do_sys_socketpair net/socket.c:1631 [inline]
 __se_sys_socketpair net/socket.c:1628 [inline]
 __x64_sys_socketpair+0x9b/0xb0 net/socket.c:1628
 do_syscall_64+0xcf/0x170 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f1a70dc2969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f1a6f40a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f1a70fea080 RCX: 00007f1a70dc2969
RDX: 0000000000000300 RSI: 0000000000000003 RDI: 0000000000000011
RBP: 00007f1a70e44ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1a70fea080 R15: 00007ffc30963598
Modules linked in:
CR2: 0000000000000000
---[ end trace df9c0464b49c5cdb ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8881f6e09cf0 EFLAGS: 00010206
RAX: ffffffff8150a590 RBX: 0000000000000100 RCX: ffff8881e0d86e40
RDX: 0000000080000100 RSI: 0000000000000000 RDI: ffff8881e1e4f1c0
RBP: ffff8881f6e09d30 R08: 0000000000000004 R09: 0000000000000003
R10: ffffed103edc1398 R11: 1ffff1103edc1398 R12: 00000000ffffb8f0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881e1e4f1c0
FS:  00007f1a6f40a6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001db2bc000 CR4: 00000000003406b0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	85 5a 01             	test   %ebx,0x1(%rdx)
   3:	00 00                	add    %al,(%rax)
   5:	48 89 df             	mov    %rbx,%rdi
   8:	e8 39 64 ff ff       	call   0xffff6446
   d:	4d 8d 7e 08          	lea    0x8(%r14),%r15
  11:	4c 89 f8             	mov    %r15,%rax
  14:	48 c1 e8 03          	shr    $0x3,%rax
  18:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  1d:	74 08                	je     0x27
  1f:	4c 89 ff             	mov    %r15,%rdi
  22:	e8 5f 34 f3 ff       	call   0xfff33486
  27:	49 8b 07             	mov    (%r15),%rax
* 2a:	48 85 c0             	test   %rax,%rax <-- trapping instruction
  2d:	74 2c                	je     0x5b
  2f:	48 89 df             	mov    %rbx,%rdi
  32:	ff d0                	call   *%rax
  34:	4d 8d 7e 10          	lea    0x10(%r14),%r15
  38:	4c 89 f8             	mov    %r15,%rax
  3b:	48 c1 e8 03          	shr    $0x3,%rax
  3f:	42                   	rex.X