watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.1.4389:16097] Modules linked in: CPU: 0 PID: 16097 Comm: syz.1.4389 Tainted: G W 5.10.226-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 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+0xfc/0x150 arch/x86/kernel/kvm.c:926 Code: 38 f0 75 26 41 f7 c7 00 02 00 00 75 0f 0f 1f 44 00 00 0f 00 2d 55 53 d5 03 f4 eb 0e 0f 1f 44 00 00 0f 00 2d 46 53 d5 03 fb f4 <4c> 89 7c 24 18 ff 74 24 18 9d 48 c7 44 24 20 0e 36 e0 45 49 c7 04 RSP: 0018:ffffc900015bf680 EFLAGS: 00000246 RAX: 0000000000000003 RBX: 1ffff920002b7ed4 RCX: ffffffff8150b854 RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffffc900015bf6c0 RBP: ffffc900015bf730 R08: dffffc0000000000 R09: ffffed1024ec21f2 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888127610f88 R14: 0000000000000003 R15: 0000000000000246 FS: 00007f4f92d906c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100000000 CR3: 000000011729a000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: 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+0x72f/0xc70 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] 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+0x139/0x1b0 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:359 [inline] lock_sock_nested+0x92/0x300 net/core/sock.c:3117 lock_sock include/net/sock.h:1640 [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+0x59e/0x8f0 net/socket.c:2376 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2430 __sys_sendmsg net/socket.c:2459 [inline] __do_sys_sendmsg net/socket.c:2468 [inline] __se_sys_sendmsg+0x1b1/0x280 net/socket.c:2466 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2466 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4f94117719 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:00007f4f92d90038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f4f942cef80 RCX: 00007f4f94117719 RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000008 RBP: 00007f4f9418a39e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4f942cef80 R15: 00007ffe783d4f38 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 16098 Comm: syz.1.4389 Tainted: G W 5.10.226-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x1/0x90 kernel/kcov.c:283 Code: 03 00 00 00 48 89 44 0a 10 48 89 74 0a 18 4c 89 44 0a 20 49 ff c1 4c 89 09 5d c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 <48> 89 e5 4c 8b 45 08 65 48 8b 15 d0 bc 97 7e 65 8b 05 d5 bc 97 7e RSP: 0018:ffffc90000170e28 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000838 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000170e68 R08: ffffffff815df6d1 R09: ffffffff815df65d R10: 0000000000000002 R11: ffff88811d94a780 R12: 00000000000004e6 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881f7126e80 FS: 00007f4f92d6f6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020002700 CR3: 000000011729a000 CR4: 00000000003506a0 DR0: 0000000020000300 DR1: 0000000020000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: tick_program_event+0x9f/0x120 kernel/time/tick-oneshot.c:44 hrtimer_interrupt+0x4cf/0x8b0 kernel/time/hrtimer.c:1724 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1083 [inline] __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1100 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:1094 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:770 [inline] RIP: 0010:tipc_sk_lookup+0x53d/0x650 net/tipc/socket.c:3000 Code: df 78 77 e8 c5 4e d1 fc 49 be 00 00 00 00 00 fc ff df eb 16 e8 b4 4e d1 fc eb 0c e8 ad 4e d1 fc eb 05 e8 a6 4e d1 fc 45 31 ed ce 5a be fc 48 c7 44 24 60 0e 36 e0 45 48 8b 44 24 40 49 c7 04 RSP: 0018:ffffc90001626800 EFLAGS: 00000293 RAX: ffffffff84995e2b RBX: 0000000000000004 RCX: ffff88811d94a780 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 00000000ffffffff RBP: ffffc900016268f0 R08: ffffffff84995e21 R09: ffffed1024ec21f1 R10: 0000000000000000 R11: dffffc0000000001 R12: fffffffffffffc18 R13: ffff888127610f00 R14: dffffc0000000000 R15: 0000000000000005 tipc_sk_rcv+0x499/0x1e30 net/tipc/socket.c:2488 tipc_node_xmit+0x34b/0xe30 net/tipc/node.c:1674 tipc_node_xmit_skb net/tipc/node.c:1739 [inline] tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1754 tipc_sk_rcv+0x177d/0x1e30 net/tipc/socket.c:2497 tipc_node_xmit+0x34b/0xe30 net/tipc/node.c:1674 tipc_sk_push_backlog net/tipc/socket.c:1306 [inline] tipc_sk_filter_connect net/tipc/socket.c:2253 [inline] tipc_sk_filter_rcv+0x1da8/0x3e00 net/tipc/socket.c:2362 tipc_sk_enqueue net/tipc/socket.c:2442 [inline] tipc_sk_rcv+0x8a1/0x1e30 net/tipc/socket.c:2493 tipc_node_xmit+0x34b/0xe30 net/tipc/node.c:1674 tipc_node_xmit_skb net/tipc/node.c:1739 [inline] tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1754 tipc_sk_backlog_rcv+0x18b/0x210 net/tipc/socket.c:2410 sk_backlog_rcv include/net/sock.h:1050 [inline] __release_sock+0x148/0x410 net/core/sock.c:2583 release_sock net/core/sock.c:3134 [inline] sock_setsockopt+0x1e3b/0x2e00 net/core/sock.c:1257 __sys_setsockopt+0x441/0x870 net/socket.c:2142 __do_sys_setsockopt net/socket.c:2157 [inline] __se_sys_setsockopt net/socket.c:2154 [inline] __x64_sys_setsockopt+0xbf/0xd0 net/socket.c:2154 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4f94117719 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:00007f4f92d6f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f4f942cf058 RCX: 00007f4f94117719 RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000007 RBP: 00007f4f9418a39e R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4f942cf058 R15: 00007ffe783d4f38