watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz.6.1902:6025] Modules linked in: CPU: 0 PID: 6025 Comm: syz.6.1902 Not tainted 6.1.115-syzkaller-00002-g182b090f35f3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] RIP: 0010:kvm_wait+0x147/0x180 arch/x86/kernel/kvm.c:1064 Code: 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 34 41 0f b6 45 00 44 38 f0 75 10 66 90 0f 00 2d db ea 50 04 fb f4 24 ff ff ff fb e9 1e ff ff ff 44 89 e9 80 e1 07 38 c1 7c a3 4c RSP: 0018:ffffc90001b5f860 EFLAGS: 00000246 RAX: 0000000000000003 RBX: 1ffff9200036bf10 RCX: ffffffff8521d43c RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88812c0df798 RBP: ffffc90001b5f910 R08: dffffc0000000000 R09: ffffed102581bef4 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88812c0df798 R14: 0000000000000003 R15: 1ffff9200036bf14 FS: 0000555564ff7500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005577fcaa8188 CR3: 0000000121928000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:603 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6de/0xda0 kernel/locking/qspinlock.c:511 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [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+0x139/0x1b0 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] lock_sock_nested+0x92/0x300 net/core/sock.c:3504 lock_sock include/net/sock.h:1763 [inline] tipc_release+0xc0/0x1310 net/tipc/socket.c:639 __sock_release net/socket.c:652 [inline] sock_close+0xdf/0x270 net/socket.c:1390 __fput+0x1e5/0x870 fs/file_table.c:320 ____fput+0x15/0x20 fs/file_table.c:348 task_work_run+0x24d/0x2e0 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x94/0xa0 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+0x26/0x130 kernel/entry/common.c:303 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f071b17ff19 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:00007fff4e4b9568 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f071b347ba0 RCX: 00007f071b17ff19 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f071b347ba0 R08: 0000000000000000 R09: 00007fff4e4b984f R10: 00007f071b347ac0 R11: 0000000000000246 R12: 000000000000ea4a R13: 00007f071b346080 R14: 0000000000000032 R15: ffffffffffffffff Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 6026 Comm: syz.6.1902 Not tainted 6.1.115-syzkaller-00002-g182b090f35f3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:skb_queue_is_last include/linux/skbuff.h:1821 [inline] RIP: 0010:tipc_skb_peek_port net/tipc/msg.h:1228 [inline] RIP: 0010:tipc_sk_rcv+0x320/0x1c40 net/tipc/socket.c:2491 Code: 42 0f b6 04 20 84 c0 0f 85 db 14 00 00 44 8b 33 41 0f ce 83 7c 24 30 00 0f 84 0a 01 00 00 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 <74> 08 4c 89 ef e8 56 31 c0 fc 4d 8b 6d 00 4d 39 fd 0f 84 f5 00 00 RSP: 0018:ffffc90001a86960 EFLAGS: 00000246 RAX: 1ffff110258368b0 RBX: ffff888112f2e8c4 RCX: 0000000000000001 RDX: ffff88811adc5100 RSI: 00000000bbada47a RDI: 0000000000000000 RBP: ffffc90001a86bb0 R08: ffffffff84fcc3eb R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88812c1b4580 R14: 00000000bbada47a R15: ffffc90001a86da0 FS: 00007f071bf206c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3b0b655016 CR3: 0000000121928000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tipc_node_xmit+0x34e/0xe40 net/tipc/node.c:1703 tipc_node_xmit_skb net/tipc/node.c:1768 [inline] tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1783 tipc_sk_rcv+0x1306/0x1c40 net/tipc/socket.c:2501 tipc_node_xmit+0x34e/0xe40 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+0x194e/0x3390 net/tipc/socket.c:2364 tipc_sk_enqueue net/tipc/socket.c:2445 [inline] tipc_sk_rcv+0x815/0x1c40 net/tipc/socket.c:2497 tipc_node_xmit+0x34e/0xe40 net/tipc/node.c:1703 tipc_node_xmit_skb net/tipc/node.c:1768 [inline] tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1783 tipc_sk_backlog_rcv+0x18b/0x210 net/tipc/socket.c:2412 sk_backlog_rcv include/net/sock.h:1131 [inline] __release_sock+0x145/0x410 net/core/sock.c:2942 release_sock net/core/sock.c:3516 [inline] sockopt_release_sock+0x9a/0x1f0 net/core/sock.c:1067 sk_setsockopt+0x165d/0x3160 sock_setsockopt+0x59/0x70 net/core/sock.c:1549 __sys_setsockopt+0x423/0x8b0 net/socket.c:2274 __do_sys_setsockopt net/socket.c:2289 [inline] __se_sys_setsockopt net/socket.c:2286 [inline] __x64_sys_setsockopt+0xbf/0xd0 net/socket.c:2286 x64_sys_call+0x1a2/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:55 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f071b17ff19 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:00007f071bf20058 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f071b345fa0 RCX: 00007f071b17ff19 RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f071b1f3986 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f071b345fa0 R15: 00007fff4e4b9408