watchdog: BUG: soft lockup - CPU#0 stuck for 144s! [syz-executor:467]
Modules linked in:
CPU: 0 PID: 467 Comm: syz-executor Not tainted 6.1.138-syzkaller-1169871-g3048ff69258f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x591/0xc40 kernel/locking/qspinlock.c:511
Code: 0f 85 33 01 00 00 41 c6 45 00 00 41 0f b6 04 17 84 c0 0f 85 46 01 00 00 48 8b 44 24 10 c6 00 01 41 bd 00 80 ff ff eb 07 f3 90 <41> ff c5 74 5b 41 0f b6 04 16 84 c0 75 35 80 3b 00 75 eb 48 89 df
RSP: 0018:ffffc900009a7940 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffff888121d91498 RCX: ffffffff84f00562
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff888121d91498
RBP: ffffc900009a7a30 R08: dffffc0000000000 R09: ffffed10243b2294
R10: ffffed10243b2294 R11: 1ffff110243b2293 R12: 1ffff1103ee00001
R13: 00000000ffff9fec R14: 1ffff110243b2293 R15: 1ffff110243b2293
FS:  0000555561b65480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fee663ad988 CR3: 000000011970f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
 queued_spin_lock_slowpath+0x47/0x50 arch/x86/include/asm/qspinlock.h:51
 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+0xd8/0xe0 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 lock_sock_nested+0x92/0x280 net/core/sock.c:3507
 lock_sock include/net/sock.h:1769 [inline]
 tipc_release+0xb2/0x1650 net/tipc/socket.c:639
 __sock_release net/socket.c:652 [inline]
 sock_close+0xf1/0x290 net/socket.c:1390
 __fput+0x1fc/0x8f0 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1db/0x240 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x9b/0xb0 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fee6627bdda
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007fffa9add1e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007fee6627bdda
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007fee663ad980 R08: 0000001b30460000 R09: 00102fbd037f4378
R10: 0000001c4e3f4787 R11: 0000000000000293 R12: 000000000000d027
R13: 00007fee663ac05c R14: 00007fee663ac050 R15: 0000000000000032
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 468 Comm: syz-executor Not tainted 6.1.138-syzkaller-1169871-g3048ff69258f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:sock_net include/net/sock.h:659 [inline]
RIP: 0010:tipc_sk_rcv+0x1a7a/0x2cc0 net/tipc/socket.c:2501
Code: 26 00 4c 8b 64 24 30 eb 0f e8 b2 ef a6 fc 4c 8b 74 24 48 44 8b 7c 24 1c 48 8b bc 24 78 01 00 00 e8 ab e4 26 00 48 8b 44 24 70 <48> 8d 78 30 48 89 f8 48 c1 e8 03 42 80 3c 28 00 74 05 e8 8f 46 eb
RSP: 0018:ffffc900007be980 EFLAGS: 00000293
RAX: ffff888121d91400 RBX: 0000000000000000 RCX: ffff88811a185100
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900007bec10 R08: dffffc0000000000 R09: ffffed10243b2294
R10: ffffed10243b2294 R11: 1ffff110243b2293 R12: ffff888121d91400
R13: dffffc0000000000 R14: ffffc900007bedc0 R15: 0000000042359337
FS:  00007fee65dff6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020005000 CR3: 000000011970f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 tipc_node_xmit+0x257/0xd00 net/tipc/node.c:1703
 tipc_node_xmit_skb+0xe9/0x130 net/tipc/node.c:1768
 tipc_sk_rcv+0x1def/0x2cc0 net/tipc/socket.c:2522
 tipc_node_xmit+0x257/0xd00 net/tipc/node.c:1703
 tipc_sk_push_backlog net/tipc/socket.c:1316 [inline]
 tipc_sk_filter_connect net/tipc/socket.c:2255 [inline]
 tipc_sk_filter_rcv+0x155f/0x2c80 net/tipc/socket.c:2364
 tipc_sk_enqueue net/tipc/socket.c:2445 [inline]
 tipc_sk_rcv+0x7d9/0x2cc0 net/tipc/socket.c:2497
 tipc_node_xmit+0x257/0xd00 net/tipc/node.c:1703
 tipc_node_xmit_skb net/tipc/node.c:1768 [inline]
 tipc_node_distr_xmit+0x292/0x390 net/tipc/node.c:1783
 tipc_sk_backlog_rcv+0x16f/0x1f0 net/tipc/socket.c:2412
 sk_backlog_rcv include/net/sock.h:1131 [inline]
 __release_sock+0x154/0x380 net/core/sock.c:2945
 release_sock+0x60/0x1c0 net/core/sock.c:3519
 tipc_release+0xd32/0x1650 net/tipc/socket.c:652
 __sock_release net/socket.c:652 [inline]
 sock_close+0xf1/0x290 net/socket.c:1390
 __fput+0x1fc/0x8f0 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1db/0x240 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x9b/0xb0 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fee6627cee9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fee65dff0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 00000000000203a0 RBX: 00007fee663abf80 RCX: 00007fee6627cee9
RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 0000000000000003
RBP: 00007fee662c949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fee663abf80 R15: 00007fffa9add118
 </TASK>