BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 1d45b5067 P4D 1d45b5067 PUD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 2621 Comm: syz.6.639 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: ffff8881e1e06e40
RDX: 0000000080000100 RSI: 0000000000000000 RDI: ffff8881c5bb31c0
RBP: ffff8881f6e09d30 R08: 0000000000000004 R09: 0000000000000003
R10: ffffed103edc1398 R11: 1ffff1103edc1398 R12: 00000000ffffa950
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881c5bb31c0
FS:  00007ff6f3a406c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001eb9e4000 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:tipc_sk_create+0x1ef/0x1de0 net/tipc/socket.c:454
Code: a0 03 00 00 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 0c 4c 89 ff e8 b8 33 79 fd 48 8b 55 c8 4d 89 37 <48> 8d 7b 20 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42
RSP: 0018:ffff8881e26a7cb8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1103ac25efc RBX: ffff8881dd378780 RCX: dffffc0000000000
RDX: ffff8881d612f440 RSI: 1ffff1103ac25efb RDI: ffff8881d612f7f0
RBP: ffff8881e26a7df0 R08: dffffc0000000000 R09: ffffed103ac25eb2
R10: ffffed103ac25eb2 R11: 1ffff1103ac25eb1 R12: ffffffff850e1060
R13: dffffc0000000000 R14: ffff8881d612f7d8 R15: ffff8881d612f7e0
 __sock_create+0x3a8/0x740 net/socket.c:1427
 sock_create net/socket.c:1478 [inline]
 __sys_socketpair+0x21e/0x5a0 net/socket.c:1582
 __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: 0033:0x7ff6f53d7969
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:00007ff6f3a40038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007ff6f55fefa0 RCX: 00007ff6f53d7969
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 000000000000001e
RBP: 00007ff6f5459ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff6f55fefa0 R15: 00007ffe7bd6b148
Modules linked in:
CR2: 0000000000000000
---[ end trace dff6534310f65205 ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8881f6e09cf0 EFLAGS: 00010206
RAX: ffffffff8150a590 RBX: 0000000000000100 RCX: ffff8881e1e06e40
RDX: 0000000080000100 RSI: 0000000000000000 RDI: ffff8881c5bb31c0
RBP: ffff8881f6e09d30 R08: 0000000000000004 R09: 0000000000000003
R10: ffffed103edc1398 R11: 1ffff1103edc1398 R12: 00000000ffffa950
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881c5bb31c0
FS:  00007ff6f3a406c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001eb9e4000 CR4: 00000000003406b0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	03 00                	add    (%rax),%eax
   2:	00 4c 89 f8          	add    %cl,-0x8(%rcx,%rcx,4)
   6:	48 c1 e8 03          	shr    $0x3,%rax
   a:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  11:	fc ff df
  14:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1)
  18:	74 0c                	je     0x26
  1a:	4c 89 ff             	mov    %r15,%rdi
  1d:	e8 b8 33 79 fd       	call   0xfd7933da
  22:	48 8b 55 c8          	mov    -0x38(%rbp),%rdx
  26:	4d 89 37             	mov    %r14,(%r15)
* 29:	48 8d 7b 20          	lea    0x20(%rbx),%rdi <-- trapping instruction
  2d:	48 89 f8             	mov    %rdi,%rax
  30:	48 c1 e8 03          	shr    $0x3,%rax
  34:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
  3b:	fc ff df
  3e:	42                   	rex.X