watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.3.1274:10712] Modules linked in: irq event stamp: 71781 hardirqs last enabled at (71780): [] kvm_wait+0x23b/0x2c0 hardirqs last disabled at (71781): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (17650): [] __tipc_sendstream+0x66c/0x14c0 net/tipc/socket.c:1582 softirqs last disabled at (17654): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (17654): [] lock_sock_nested+0x6a/0x100 net/core/sock.c:3625 CPU: 1 UID: 0 PID: 10712 Comm: syz.3.1274 Not tainted 6.13.0-rc2-syzkaller-00059-g00a5acdbf398 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline] RIP: 0010:kvm_wait+0x250/0x2c0 arch/x86/kernel/kvm.c:1064 Code: 3b 45 0f b6 f6 44 89 ff 44 89 f6 e8 6a 75 54 00 e8 c5 3e 5c 00 45 38 f7 75 15 66 90 e8 d9 74 54 00 0f 00 2d 32 27 bd 0a fb f4 50 fe ff ff e8 c6 74 54 00 fb e9 45 fe ff ff 89 d9 80 e1 07 38 RSP: 0018:ffffc900044ff4e0 EFLAGS: 00000246 RAX: ffffffff814ae967 RBX: ffff8880334d96c0 RCX: 0000000000080000 RDX: ffffc9000e7df000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc900044ff5b0 R08: ffffffff942a199f R09: 1ffffffff2854333 R10: dffffc0000000000 R11: fffffbfff2854334 R12: 1ffff9200089fea0 R13: dffffc0000000000 R14: 0000000000000003 R15: 0000000000000003 FS: 00007f6d6403c6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3c21c1 CR3: 000000007ad5a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:596 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:466 [inline] __pv_queued_spin_lock_slowpath+0x8d0/0xdb0 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline] queued_spin_lock_slowpath+0x42/0x50 arch/x86/include/asm/qspinlock.h:51 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x272/0x370 kernel/locking/spinlock_debug.c:116 spin_lock_bh include/linux/spinlock.h:356 [inline] lock_sock_nested+0x6a/0x100 net/core/sock.c:3625 lock_sock include/net/sock.h:1617 [inline] __tipc_sendstream+0x709/0x14c0 net/tipc/socket.c:1582 tipc_sendstream+0x55/0x70 net/tipc/socket.c:1546 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583 ___sys_sendmsg net/socket.c:2637 [inline] __sys_sendmsg+0x269/0x350 net/socket.c:2669 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6d63185d19 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:00007f6d6403c038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f6d63376080 RCX: 00007f6d63185d19 RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004 RBP: 00007f6d63201a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f6d63376080 R15: 00007fff673dac68 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 10710 Comm: syz.3.1274 Not tainted 6.13.0-rc2-syzkaller-00059-g00a5acdbf398 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:irq_work_run+0x5/0x350 kernel/irq_work.c:260 Code: 8c cf fe ff ff 4c 89 e7 e8 d8 92 57 00 e9 c2 fe ff ff 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <48> 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec a0 00 00 RSP: 0018:ffffc90000007fc8 EFLAGS: 00000006 RAX: ffffffff813e5d71 RBX: 0000000000000001 RCX: ffff888026141e00 RDX: 0000000000010000 RSI: ffffffff8c5f99a0 RDI: ffffffff8c5f9960 RBP: 0000000000000001 R08: ffffffff813e5d5e R09: 1ffffffff2032cce R10: dffffc0000000000 R11: fffffbfff2032ccf R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f6d6405d6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002073d000 CR3: 000000007ad5a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __sysvec_irq_work+0xb8/0x430 arch/x86/kernel/irq_work.c:22 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0x9e/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:rcu_read_unlock_special+0x88/0x570 kernel/rcu/tree_plugin.h:693 Code: f1 f1 f1 00 f2 f2 f2 49 89 04 14 66 41 c7 44 14 09 f3 f3 41 c6 44 14 0b f3 65 44 8b 3d 89 f9 7d 7e 41 f7 c7 00 00 f0 00 74 49 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 22 00 00 00 00 66 42 c7 44 22 RSP: 0018:ffffc9000428ee20 EFLAGS: 00000206 RAX: f0ac7be598627e00 RBX: 1ffff92000851dcc RCX: ffffffff817b11ca RDX: dffffc0000000000 RSI: ffffffff8c0a9760 RDI: ffffffff8c5f99c0 RBP: ffffc9000428eef8 R08: ffffffff942a199f R09: 1ffffffff2854333 R10: dffffc0000000000 R11: fffffbfff2854334 R12: 1ffff92000851dc8 R13: ffff888026142260 R14: ffffc9000428ee60 R15: ffffffff8e93c800 __rcu_read_unlock+0xa1/0x110 kernel/rcu/tree_plugin.h:437 tipc_sk_conn_proto_rcv net/tipc/socket.c:1371 [inline] tipc_sk_proto_rcv+0xc76/0x1990 net/tipc/socket.c:2156 tipc_sk_filter_rcv+0x36b6/0x3950 net/tipc/socket.c:2350 tipc_sk_enqueue net/tipc/socket.c:2443 [inline] tipc_sk_rcv+0x8b3/0x1d10 net/tipc/socket.c:2495 tipc_node_xmit+0x1e0/0xfa0 net/tipc/node.c:1701 tipc_node_xmit_skb+0x149/0x1b0 net/tipc/node.c:1766 tipc_recvstream+0x8ae/0xf80 net/tipc/socket.c:2093 sock_recvmsg_nosec net/socket.c:1033 [inline] sock_recvmsg+0x22f/0x280 net/socket.c:1055 ____sys_recvmsg+0x1c6/0x480 net/socket.c:2803 ___sys_recvmsg net/socket.c:2845 [inline] __sys_recvmsg+0x291/0x390 net/socket.c:2878 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6d63185d19 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:00007f6d6405d038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 00007f6d63375fa0 RCX: 00007f6d63185d19 RDX: 0000000000001f00 RSI: 0000000020000500 RDI: 0000000000000003 RBP: 00007f6d63201a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6d63375fa0 R15: 00007fff673dac68