RBP: 00007f45124a32a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f451263b080 R15: 00007ffdcaceeb38 watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.3.64:648] Modules linked in: CPU: 1 PID: 648 Comm: syz.3.64 Not tainted 5.10.237-syzkaller-1007464-g7e2543346ff7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:190 Code: 00 00 00 0f 0b 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d cc 82 3f 05 48 89 de e8 74 50 39 00 5b 5d c3 00 <55> 48 89 e5 48 8b 45 08 65 48 8b 0d 70 da 9e 7e 65 8b 15 75 da 9e RSP: 0018:ffffc900014ee3d8 EFLAGS: 00000246 RAX: ffffffff8459de26 RBX: ffffc900014ee840 RCX: 0000000000000000 RDX: ffff88812b82cf00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900014ee650 R08: dffffc0000000000 R09: ffffed1023973b32 R10: ffffed1023973b32 R11: 1ffff11023973b31 R12: dffffc0000000000 R13: ffff88811cb9d900 R14: 0000000000000000 R15: 0000000031cd5fd2 FS: 00007f4511e736c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4511e72f98 CR3: 000000011d4a0000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tipc_node_xmit+0x256/0xcd0 net/tipc/node.c:1674 tipc_node_xmit_skb net/tipc/node.c:1739 [inline] tipc_node_distr_xmit+0x292/0x390 net/tipc/node.c:1754 tipc_sk_rcv+0x19b9/0x1ef0 net/tipc/socket.c:2497 tipc_node_xmit+0x256/0xcd0 net/tipc/node.c:1674 tipc_sk_push_backlog+0x4dd/0x790 net/tipc/socket.c:1306 tipc_sk_conn_proto_rcv net/tipc/socket.c:1358 [inline] tipc_sk_proto_rcv+0x98d/0x1ac0 net/tipc/socket.c:2156 tipc_sk_filter_rcv+0x30ac/0x3850 net/tipc/socket.c:2350 tipc_sk_enqueue net/tipc/socket.c:2442 [inline] tipc_sk_rcv+0x7cc/0x1ef0 net/tipc/socket.c:2493 tipc_node_xmit+0x256/0xcd0 net/tipc/node.c:1674 tipc_node_xmit_skb net/tipc/node.c:1739 [inline] tipc_node_distr_xmit+0x292/0x390 net/tipc/node.c:1754 tipc_sk_backlog_rcv+0x16f/0x1f0 net/tipc/socket.c:2410 sk_backlog_rcv include/net/sock.h:1052 [inline] __release_sock+0x146/0x360 net/core/sock.c:2583 release_sock+0x60/0x1b0 net/core/sock.c:3134 tipc_wait_for_rcvmsg+0x2ca/0x5e0 net/tipc/socket.c:1849 tipc_recvstream+0x1f7/0xe80 net/tipc/socket.c:2040 ____sys_recvmsg+0x291/0x580 net/socket.c:-1 ___sys_recvmsg+0x1af/0x4f0 net/socket.c:2637 __sys_recvmsg net/socket.c:2667 [inline] __do_sys_recvmsg net/socket.c:2677 [inline] __se_sys_recvmsg net/socket.c:2674 [inline] __x64_sys_recvmsg+0x1dd/0x2a0 net/socket.c:2674 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4512421de9 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:00007f4511e73038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 00007f451263b080 RCX: 00007f4512421de9 RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000003 RBP: 00007f45124a32a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f451263b080 R15: 00007ffdcaceeb38 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 646 Comm: syz.3.64 Not tainted 5.10.237-syzkaller-1007464-g7e2543346ff7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:25 [inline] RIP: 0010:task_tick_fair+0x826/0xae0 kernel/sched/fair.c:11150 Code: 94 24 80 00 00 00 48 8d 8c 24 a0 00 00 00 49 89 d8 4c 8b 4c 24 08 41 54 ff 74 24 18 e8 c3 f7 2a 02 48 83 c4 10 e9 6a fb ff ff <0f> 1f 44 00 00 4c 89 ff 48 8b 74 24 40 e8 c8 23 ff ff 49 83 c7 40 RSP: 0018:ffffc90000007b80 EFLAGS: 00000046 RAX: 1ffff11023c5e229 RBX: ffff8881f7056218 RCX: ffffffff8143b4f5 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88812b82bb40 RBP: ffffc90000007c88 R08: dffffc0000000000 R09: ffffed1025705769 R10: ffffed1025705769 R11: 1ffff11025705768 R12: dffffc0000000000 R13: ffff88811e2f1000 R14: 0000000000000000 R15: ffff88812b82bb40 FS: 00007f4511e946c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4511e73d58 CR3: 000000011d4a0000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: scheduler_tick+0xfb/0x3e0 kernel/sched/core.c:4274 update_process_times+0x1cc/0x200 kernel/time/timer.c:1753 tick_sched_handle kernel/time/tick-sched.c:225 [inline] tick_sched_timer+0x17c/0x240 kernel/time/tick-sched.c:1389 __run_hrtimer kernel/time/hrtimer.c:1587 [inline] __hrtimer_run_queues+0x37a/0x960 kernel/time/hrtimer.c:1651 hrtimer_interrupt+0x3a6/0xdc0 kernel/time/hrtimer.c:1713 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline] __sysvec_apic_timer_interrupt+0xfa/0x3f0 arch/x86/kernel/apic/apic.c:1112 asm_call_irq_on_stack+0xf/0x20 __run_sysvec_on_irqstack arch/x86/include/asm/irq_stack.h:37 [inline] run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:89 [inline] sysvec_apic_timer_interrupt+0x85/0xe0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:native_restore_fl arch/x86/include/asm/irqflags.h:41 [inline] RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:84 [inline] RIP: 0010:kvm_wait+0xc2/0x120 arch/x86/kernel/kvm.c:926 Code: 38 f0 75 26 41 f7 c4 00 02 00 00 75 0f 0f 1f 44 00 00 0f 00 2d ff 9d 98 03 f4 eb 0e 0f 1f 44 00 00 0f 00 2d f0 9d 98 03 fb f4 <4c> 89 64 24 18 ff 74 24 18 9d 48 c7 44 24 20 0e 36 e0 45 4b c7 04 RSP: 0018:ffffc900014cf6e0 EFLAGS: 00000246 RAX: 0000000000000003 RBX: ffff88811cb9d988 RCX: ffffffff814b15ba RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff88811cb9d988 RBP: ffffc900014cf790 R08: dffffc0000000000 R09: ffffed1023973b32 R10: ffffed1023973b32 R11: 1ffff11023973b31 R12: 0000000000000246 R13: 1ffff11023973b31 R14: dffffc0000000000 R15: 1ffff92000299ee0 pv_wait arch/x86/include/asm/paravirt.h:564 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x714/0xb70 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [inline] queued_spin_lock_slowpath+0x47/0x50 arch/x86/include/asm/qspinlock.h:51 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock include/linux/spinlock.h:183 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0xd8/0xe0 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:359 [inline] lock_sock_nested+0x92/0x290 net/core/sock.c:3117 lock_sock include/net/sock.h:1648 [inline] tipc_sendstream+0x47/0x70 net/tipc/socket.c:1540 sock_sendmsg_nosec net/socket.c:652 [inline] __sock_sendmsg net/socket.c:664 [inline] ____sys_sendmsg+0x5a2/0x8c0 net/socket.c:2376 ___sys_sendmsg+0x1f0/0x260 net/socket.c:2430 __sys_sendmsg net/socket.c:2459 [inline] __do_sys_sendmsg net/socket.c:2468 [inline] __se_sys_sendmsg net/socket.c:2466 [inline] __x64_sys_sendmsg+0x1e2/0x2a0 net/socket.c:2466 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4512421de9 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:00007f4511e94038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f451263afa0 RCX: 00007f4512421de9 RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000004 RBP: 00007f45124a32a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f451263afa0 R15: 00007ffdcaceeb38