watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz.2.60:617]
CPU#0 Utilization every 22s during lockup:
	#1: 100% system,	  0% softirq,	  1% hardirq,	  0% idle
	#2: 100% system,	  0% softirq,	  1% hardirq,	  0% idle
	#3: 100% system,	  0% softirq,	  1% hardirq,	  0% idle
	#4: 100% system,	  0% softirq,	  1% hardirq,	  0% idle
	#5: 100% system,	  0% softirq,	  1% hardirq,	  0% idle
Modules linked in:
CPU: 0 UID: 0 PID: 617 Comm: syz.2.60 Not tainted 6.14.0-rc6-syzkaller-00016-g0fed89a961ea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:430 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x802/0xfd0 kernel/locking/qspinlock.c:508
Code: 24 b0 00 00 00 00 01 48 8b 44 24 48 42 0f b6 04 28 84 c0 0f 85 8d 00 00 00 48 8b 5c 24 18 80 3b 00 4c 8b 6c 24 40 74 0c f3 90 <41> ff c4 75 b7 e9 b1 00 00 00 48 89 df be 02 00 00 00 e8 77 1b 5c
RSP: 0018:ffffc90000a37920 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffff888112eea0c0 RCX: ffffc90000a37901
RDX: 1ffff110225dd418 RSI: dffffc0000000000 RDI: 0000000000000003
RBP: ffffc90000a37a50 R08: ffffffff816225bd R09: 1ffff110225dd418
R10: ffffed10225dd419 R11: ffffed10225dd419 R12: 00000000ffff8c14
R13: ffff8881f6e3abc0 R14: 1ffff92000146f3a R15: 0000000000000000
FS:  0000555556866500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0072f2000 CR3: 000000011e23c000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:577 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock include/linux/spinlock.h:187 [inline]
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:127 [inline]
 _raw_spin_lock_bh+0x13d/0x1b0 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 lock_sock_nested+0x92/0x300 net/core/sock.c:3665
 lock_sock include/net/sock.h:1624 [inline]
 tipc_release+0xc0/0x1390 net/tipc/socket.c:637
 __sock_release net/socket.c:647 [inline]
 sock_close+0xc6/0x240 net/socket.c:1398
 __fput+0x400/0x9f0 fs/file_table.c:464
 ____fput+0x1c/0x30 fs/file_table.c:492
 task_work_run+0x252/0x2e0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x8a/0x110 kernel/entry/common.c:218
 do_syscall_64+0x5c/0x110 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f524778cde9
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:00007ffd92c7eef8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f52479a7ba0 RCX: 00007f524778cde9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f52479a7ba0 R08: 0000000000000000 R09: 0000000392c7f1ef
R10: 00007f52479a7ac0 R11: 0000000000000246 R12: 000000000000d930
R13: 00007ffd92c7eff0 R14: ffffffffffffffff R15: 00007ffd92c7f010
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 619 Comm: syz.2.60 Not tainted 6.14.0-rc6-syzkaller-00016-g0fed89a961ea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:tipc_sk_lookup+0x75/0x670 net/tipc/socket.c:2993
Code: 48 bc d2 d5 86 48 c7 44 24 50 f0 ba 7b 85 48 8d 54 24 40 48 c1 ea 03 48 b8 f1 f1 f1 f1 04 f3 f3 f3 48 89 54 24 38 48 89 04 1a <e8> 96 13 28 fc 49 c1 ec 03 41 0f b6 04 1c 84 c0 0f 85 45 05 00 00
RSP: 0018:ffffc90000e566c0 EFLAGS: 00000a02
RAX: f3f3f304f1f1f1f1 RBX: dffffc0000000000 RCX: 0000000000000202
RDX: 1ffff920001cace0 RSI: 0000000041c5d4c5 RDI: ffff88812ae21200
RBP: ffffc90000e56790 R08: ffffffff857ba1bb R09: fffff520001cace4
R10: fffff520001cace5 R11: fffff520001cace4 R12: ffffc90000e56720
R13: ffffc90000e56be0 R14: 0000000041c5d4c5 R15: ffff88812ae21200
FS:  00007f52486556c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5248654f98 CR3: 000000011e23c000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 tipc_sk_rcv+0x45c/0x1bf0 net/tipc/socket.c:2490
 tipc_node_xmit+0x362/0xe90 net/tipc/node.c:1701
 tipc_node_xmit_skb net/tipc/node.c:1766 [inline]
 tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1781
 tipc_sk_rcv+0x12aa/0x1bf0 net/tipc/socket.c:2499
 tipc_node_xmit+0x362/0xe90 net/tipc/node.c:1701
 tipc_sk_push_backlog+0x4da/0x7b0 net/tipc/socket.c:1312
 tipc_sk_conn_proto_rcv net/tipc/socket.c:1366 [inline]
 tipc_sk_proto_rcv+0xafa/0x1780 net/tipc/socket.c:2156
 tipc_sk_filter_rcv+0x3196/0x33d0 net/tipc/socket.c:2350
 tipc_sk_enqueue net/tipc/socket.c:2443 [inline]
 tipc_sk_rcv+0x815/0x1bf0 net/tipc/socket.c:2495
 tipc_node_xmit+0x362/0xe90 net/tipc/node.c:1701
 tipc_node_xmit_skb net/tipc/node.c:1766 [inline]
 tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1781
 tipc_sk_backlog_rcv+0x18b/0x210 net/tipc/socket.c:2410
 sk_backlog_rcv+0xb2/0x290 include/net/sock.h:1122
 __release_sock net/core/sock.c:3123 [inline]
 release_sock+0x14a/0x3a0 net/core/sock.c:3677
 sk_setsockopt+0x904/0x33c0
 sock_setsockopt+0x59/0x70 net/core/sock.c:1646
 do_sock_setsockopt+0x2f7/0x710 net/socket.c:2299
 __sys_setsockopt net/socket.c:2328 [inline]
 __do_sys_setsockopt net/socket.c:2334 [inline]
 __se_sys_setsockopt net/socket.c:2331 [inline]
 __x64_sys_setsockopt+0x1f3/0x280 net/socket.c:2331
 x64_sys_call+0x27e4/0x2df0 arch/x86/include/generated/asm/syscalls_64.h:55
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x50/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f524778cde9
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:00007f5248655038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f52479a6080 RCX: 00007f524778cde9
RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003
RBP: 00007f524780e2a0 R08: 0000000000000004 R09: 0000000000000000
R10: 0000400000000540 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f52479a6080 R15: 00007ffd92c7ed98
 </TASK>