general protection fault in tipc_mon_reinit

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	general protection fault in tipc_mon_reinit_self tipc				1	1544d	1541d	0/28	auto-closed as invalid on 2021/01/08 19:28
upstream	general protection fault in tipc_mon_reinit_self (2) tipc				6	46d	160d	0/28	upstream: reported on 2024/06/26 13:29
tipc: Node number set to 10005162
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 4248 Comm: kworker/0:11 Not tainted 5.15.159-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events tipc_net_finalize_work
RIP: 0010:tipc_mon_reinit_self+0xae/0x300 net/tipc/monitor.c:719
Code: 8b 2c 24 48 81 c3 08 10 00 00 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 2c 16 fd f7 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 a5 01 00 00 89 2b 4c 89 f7 e8 fb 72 5a
RSP: 0018:ffffc90002e27b48 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc90002e27a03
RDX: 0000000000000003 RSI: ffffffff8a8b3c20 RDI: ffffffff8ad8f680
RBP: 000000000098aaaa R08: dffffc0000000000 R09: fffffbfff1bc8cee
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880232b0010
R13: dffffc0000000000 R14: ffff88807c7d5010 R15: ffff8880651bb500
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdf665cf140 CR3: 0000000015fc2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 tipc_net_finalize+0x200/0x330 net/tipc/net.c:140
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300
 </TASK>
Modules linked in:
---[ end trace 46c66a332ed60b05 ]---
RIP: 0010:tipc_mon_reinit_self+0xae/0x300 net/tipc/monitor.c:719
Code: 8b 2c 24 48 81 c3 08 10 00 00 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 2c 16 fd f7 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 a5 01 00 00 89 2b 4c 89 f7 e8 fb 72 5a
RSP: 0018:ffffc90002e27b48 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc90002e27a03
RDX: 0000000000000003 RSI: ffffffff8a8b3c20 RDI: ffffffff8ad8f680
RBP: 000000000098aaaa R08: dffffc0000000000 R09: fffffbfff1bc8cee
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880232b0010
R13: dffffc0000000000 R14: ffff88807c7d5010 R15: ffff8880651bb500
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdf665cf140 CR3: 0000000015fc2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	8b 2c 24             	mov    (%rsp),%ebp
   3:	48 81 c3 08 10 00 00 	add    $0x1008,%rbx
   a:	48 89 d8             	mov    %rbx,%rax
   d:	48 c1 e8 03          	shr    $0x3,%rax
  11:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  16:	74 08                	je     0x20
  18:	48 89 df             	mov    %rbx,%rdi
  1b:	e8 2c 16 fd f7       	call   0xf7fd164c
  20:	48 8b 1b             	mov    (%rbx),%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 a5 01 00 00    	jne    0x1dc
  37:	89 2b                	mov    %ebp,(%rbx)
  39:	4c 89 f7             	mov    %r14,%rdi
  3c:	e8                   	.byte 0xe8
  3d:	fb                   	sti
  3e:	72 5a                	jb     0x9a