batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/u4:5:3572]
Modules linked in:
irq event stamp: 15824331
hardirqs last  enabled at (15824330): [<ffffffff81003ce4>] trace_hardirqs_on_thunk+0x1a/0x1c
hardirqs last disabled at (15824331): [<ffffffff81003d00>] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last  enabled at (15819340): [<ffffffff87b996b1>] tipc_shutdown+0x121/0x310 net/tipc/socket.c:2603
softirqs last disabled at (15819342): [<ffffffff87bb4683>] spin_lock_bh include/linux/spinlock.h:334 [inline]
softirqs last disabled at (15819342): [<ffffffff87bb4683>] tipc_topsrv_stop net/tipc/topsrv.c:702 [inline]
softirqs last disabled at (15819342): [<ffffffff87bb4683>] tipc_topsrv_exit_net+0x283/0x5c0 net/tipc/topsrv.c:722
CPU: 1 PID: 3572 Comm: kworker/u4:5 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:__radix_tree_lookup+0x225/0x370 lib/radix-tree.c:1059
Code: 3c 02 00 0f 85 48 01 00 00 48 8b 44 24 28 48 8b 54 24 30 48 89 10 e8 1a 91 73 f9 4c 89 e0 48 83 c4 40 5b 5d 41 5c 41 5d 41 5e <41> 5f c3 e8 03 91 73 f9 4c 39 24 24 77 11 e8 f8 90 73 f9 49 8d 85
RSP: 0018:ffff8880a881fbd0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000026bffc33 RCX: ffffffff87eef30a
RDX: 0000000000000000 RSI: ffffffff87eef456 RDI: 0000000000000006
RBP: ffff8880a5279500 R08: 0000000000000001 R09: 0000000026bffc33
R10: 0000000000000006 R11: 0000000000000000 R12: ffff8880a5279550
R13: ffffed1014a4f2b1 R14: ffff88805b5dda40 R15: 0000000026bffc33
FS:  0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005615f6c85690 CR3: 000000009a72c000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 tipc_topsrv_stop net/tipc/topsrv.c:698 [inline]
 tipc_topsrv_exit_net+0x25e/0x5c0 net/tipc/topsrv.c:722
 ops_exit_list+0xa5/0x150 net/core/net_namespace.c:153
 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:554
 process_one_work+0x864/0x1570 kernel/workqueue.c:2153
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60
----------------
Code disassembly (best guess):
   0:	3c 02                	cmp    $0x2,%al
   2:	00 0f                	add    %cl,(%rdi)
   4:	85 48 01             	test   %ecx,0x1(%rax)
   7:	00 00                	add    %al,(%rax)
   9:	48 8b 44 24 28       	mov    0x28(%rsp),%rax
   e:	48 8b 54 24 30       	mov    0x30(%rsp),%rdx
  13:	48 89 10             	mov    %rdx,(%rax)
  16:	e8 1a 91 73 f9       	callq  0xf9739135
  1b:	4c 89 e0             	mov    %r12,%rax
  1e:	48 83 c4 40          	add    $0x40,%rsp
  22:	5b                   	pop    %rbx
  23:	5d                   	pop    %rbp
  24:	41 5c                	pop    %r12
  26:	41 5d                	pop    %r13
  28:	41 5e                	pop    %r14
* 2a:	41 5f                	pop    %r15 <-- trapping instruction
  2c:	c3                   	retq
  2d:	e8 03 91 73 f9       	callq  0xf9739135
  32:	4c 39 24 24          	cmp    %r12,(%rsp)
  36:	77 11                	ja     0x49
  38:	e8 f8 90 73 f9       	callq  0xf9739135
  3d:	49                   	rex.WB
  3e:	8d                   	.byte 0x8d
  3f:	85                   	.byte 0x85