watchdog: BUG: soft lockup - CPU#1 stuck for 225s! [syz-executor.1:349] Modules linked in: CPU: 1 PID: 349 Comm: syz-executor.1 Tainted: G W 5.15.149-syzkaller-00490-g5d96939590c0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 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:918 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 5b 03 f3 03 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:ffffc900001cff80 EFLAGS: 00000246 RAX: 0000000000000003 RBX: 1ffff92000039ff4 RCX: ffffffff8154fa7f RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff888118fa6208 RBP: ffffc900001d0030 R08: dffffc0000000000 R09: ffffed10231f4c42 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888118fa6208 R14: 0000000000000003 R15: 1ffff92000039ff8 FS: 00007f40b369c6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e621000 CR3: 0000000128cf7000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:597 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [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:187 [inline] __raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_lock+0x139/0x1b0 kernel/locking/spinlock.c:154 tcp_v4_rcv+0x229e/0x2a70 net/ipv4/tcp_ipv4.c:2119 ip_protocol_deliver_rcu+0x32f/0x710 net/ipv4/ip_input.c:204 ip_local_deliver_finish net/ipv4/ip_input.c:231 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] ip_local_deliver+0x2c6/0x590 net/ipv4/ip_input.c:252 dst_input include/net/dst.h:454 [inline] ip_sublist_rcv_finish net/ipv4/ip_input.c:577 [inline] ip_list_rcv_finish net/ipv4/ip_input.c:628 [inline] ip_sublist_rcv+0x7e2/0x980 net/ipv4/ip_input.c:636 ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:671 __netif_receive_skb_list_ptype net/core/dev.c:5535 [inline] __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5583 __netif_receive_skb_list net/core/dev.c:5635 [inline] netif_receive_skb_list_internal+0x967/0xcc0 net/core/dev.c:5726 gro_normal_list net/core/dev.c:5880 [inline] napi_complete_done+0x344/0x770 net/core/dev.c:6618 virtqueue_napi_complete drivers/net/virtio_net.c:357 [inline] virtnet_poll+0xbee/0x1260 drivers/net/virtio_net.c:1592 __napi_poll+0xc4/0x5a0 net/core/dev.c:7042 napi_poll net/core/dev.c:7109 [inline] net_rx_action+0x47d/0xc50 net/core/dev.c:7196 __do_softirq+0x26d/0x5bf kernel/softirq.c:565 invoke_softirq kernel/softirq.c:425 [inline] __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660 common_interrupt+0xb4/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x27/0x40 arch/x86/include/asm/idtentry.h:629 RIP: 0010:bpf_test_timer_continue+0x35a/0x460 net/bpf/test_run.c:87 Code: fd e8 2a a8 52 fd 48 89 c3 43 80 3c 2c 00 74 08 4c 89 f7 e8 28 f8 a3 fd 49 89 1e b0 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f <5d> c3 e8 af d4 61 fd 41 be fc ff ff ff 49 bd 00 00 00 00 00 fc ff RSP: 0018:ffffc900052b7950 EFLAGS: 00000286 RAX: ffffffff840e4f01 RBX: ffffc900052b7a60 RCX: 0000000000040000 RDX: ffffc90001d62000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc900052b7950 R08: ffffffff840e4f4d R09: ffffed1021846c59 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000002 R13: dffffc0000000000 R14: ffffc9000009d030 R15: ffffc900052b7c80 bpf_test_run+0x4af/0xa10 net/bpf/test_run.c:120 bpf_prog_test_run_skb+0xb41/0x1420 net/bpf/test_run.c:663 bpf_prog_test_run+0x3b0/0x630 kernel/bpf/syscall.c:3348 __sys_bpf+0x525/0x760 kernel/bpf/syscall.c:4651 __do_sys_bpf kernel/bpf/syscall.c:4737 [inline] __se_sys_bpf kernel/bpf/syscall.c:4735 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:4735 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f40b4928d69 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:00007f40b369c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f40b4a56f80 RCX: 00007f40b4928d69 RDX: 0000000000000050 RSI: 0000000020000180 RDI: 000000000000000a RBP: 00007f40b497549e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f40b4a56f80 R15: 00007ffce3ab8558 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 14 Comm: rcu_preempt Tainted: G W 5.15.149-syzkaller-00490-g5d96939590c0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:native_halt arch/x86/include/asm/irqflags.h:57 [inline] RIP: 0010:halt arch/x86/include/asm/irqflags.h:98 [inline] RIP: 0010:kvm_wait+0x117/0x180 arch/x86/kernel/kvm.c:912 Code: 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 53 41 0f b6 45 00 44 38 f0 0f 85 63 ff ff ff 66 90 0f 00 2d 8a 03 f3 03 f4 54 ff ff ff fa 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b RSP: 0018:ffffc90000007640 EFLAGS: 00000046 RAX: 0000000000000003 RBX: 1ffff92000000ecc RCX: ffffffff8154fa7f RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff8881f7027900 RBP: ffffc900000076f0 R08: dffffc0000000000 R09: ffffed103ee04f21 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881f7027900 R14: 0000000000000003 R15: 1ffff92000000ed0 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f38f4710d58 CR3: 000000011d77b000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:597 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [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_flags include/linux/spinlock.h:199 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:162 lock_timer_base+0x12f/0x270 kernel/time/timer.c:952 __mod_timer+0x685/0xcf0 kernel/time/timer.c:999 mod_timer+0x1f/0x30 kernel/time/timer.c:1114 sk_reset_timer+0x22/0xb0 net/core/sock.c:3141 inet_csk_reset_xmit_timer include/net/inet_connection_sock.h:237 [inline] tcp_reset_xmit_timer include/net/tcp.h:1324 [inline] tcp_rearm_rto+0x2d6/0x390 net/ipv4/tcp_input.c:3190 tcp_event_new_data_sent+0x242/0x3f0 net/ipv4/tcp_output.c:81 tcp_write_xmit+0x146d/0x5e80 net/ipv4/tcp_output.c:2712 tcp_tsq_write+0x228/0x330 net/ipv4/tcp_output.c:1019 tcp_tsq_handler+0xa9/0x150 net/ipv4/tcp_output.c:1028 tcp_tasklet_func+0x436/0x4b0 net/ipv4/tcp_output.c:1060 tasklet_action_common+0x22e/0x610 kernel/softirq.c:796 tasklet_action+0x4c/0x60 kernel/softirq.c:821 __do_softirq+0x26d/0x5bf kernel/softirq.c:565 do_softirq+0xf6/0x150 kernel/softirq.c:452 __local_bh_enable_ip+0x75/0x80 kernel/softirq.c:379 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline] _raw_spin_unlock_bh+0x51/0x60 kernel/locking/spinlock.c:210 sock_hash_delete_elem+0x2a2/0x2f0 net/core/sock_map.c:945 bpf_prog_2c29ac5cdc6b1842+0x3a/0x744 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1883 [inline] bpf_trace_run3+0x11e/0x250 kernel/trace/bpf_trace.c:1921 __bpf_trace_timer_start+0x2b/0x40 include/trace/events/timer.h:52 __traceiter_timer_start+0x7f/0xd0 include/trace/events/timer.h:52 trace_timer_start include/trace/events/timer.h:52 [inline] enqueue_timer+0x351/0x4c0 kernel/time/timer.c:592 internal_add_timer kernel/time/timer.c:617 [inline] __mod_timer+0x8d3/0xcf0 kernel/time/timer.c:1068 schedule_timeout+0x187/0x370 kernel/time/timer.c:1889 rcu_gp_fqs_loop+0x2af/0xf80 kernel/rcu/tree.c:1972 rcu_gp_kthread+0xa4/0x350 kernel/rcu/tree.c:2145 kthread+0x421/0x510 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298