worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472 kthread+0x421/0x510 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 watchdog: BUG: soft lockup - CPU#0 stuck for 226s! [kworker/0:0:6] Modules linked in: CPU: 0 PID: 6 Comm: kworker/0:0 Not tainted 5.15.148-syzkaller-00013-gad06eaf051cd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: rcu_gp process_srcu 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:ffffc900000076e0 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 1ffff92000000ee0 RCX: 1ffffffff0d1aa9c RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8881f7037ed4 RBP: ffffc90000007790 R08: dffffc0000000000 R09: ffffed103ee06fdb R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881f7037ed4 R14: 0000000000000001 R15: 1ffff92000000ee4 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e322000 CR3: 0000000126233000 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_node kernel/locking/qspinlock_paravirt.h:325 [inline] __pv_queued_spin_lock_slowpath+0x41b/0xc40 kernel/locking/qspinlock.c:473 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_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:178 sock_hash_delete_elem+0xb1/0x2f0 net/core/sock_map.c:937 bpf_prog_2c29ac5cdc6b1842+0x3a/0x390 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_run2+0xec/0x210 kernel/trace/bpf_trace.c:1920 __bpf_trace_kfree+0x6f/0x90 include/trace/events/kmem.h:118 trace_kfree include/trace/events/kmem.h:118 [inline] kfree+0x1f3/0x220 mm/slub.c:4569 selinux_sk_free_security+0x5b/0x70 security/selinux/hooks.c:5331 security_sk_free+0x44/0x80 security/security.c:2284 sk_prot_free net/core/sock.c:1889 [inline] __sk_destruct+0x468/0x5b0 net/core/sock.c:1980 sk_destruct net/core/sock.c:1995 [inline] __sk_free+0x36c/0x470 net/core/sock.c:2006 sk_free+0x51/0x80 net/core/sock.c:2017 sock_put include/net/sock.h:1914 [inline] tipc_sk_callback+0x58/0x90 net/tipc/socket.c:546 rcu_do_batch+0x57a/0xc10 kernel/rcu/tree.c:2523 rcu_core+0x517/0x1020 kernel/rcu/tree.c:2763 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2776 __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 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:rdtsc_ordered arch/x86/include/asm/msr.h:224 [inline] RIP: 0010:delay_tsc+0x74/0xe0 arch/x86/lib/delay.c:72 Code: 00 e8 d0 6f c1 fe 65 8b 05 21 b5 77 7d 85 c0 74 2f f3 90 bf 01 00 00 00 e8 19 6e c1 fe e8 c4 14 38 02 41 39 c7 75 20 0f 01 f9 <66> 90 48 89 d3 48 c1 e3 20 48 09 c3 4c 29 e3 49 39 de 77 be eb 23 RSP: 0018:ffffc90000067b70 EFLAGS: 00000246 RAX: 00000000408130fe RBX: 00000000000005e2 RCX: 0000000000000000 RDX: 000000000000001c RSI: ffffffff85830480 RDI: ffffffff85830440 RBP: ffffc90000067b90 R08: ffffffff82858afb R09: fffff5200000cf75 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000001c40812aaa R13: dffffc0000000000 R14: 0000000000002af9 R15: 0000000000000000 __delay arch/x86/lib/delay.c:203 [inline] __const_udelay+0x5e/0x70 arch/x86/lib/delay.c:217 try_check_zero+0x301/0x370 kernel/rcu/srcutree.c:702 srcu_advance_state kernel/rcu/srcutree.c:1227 [inline] process_srcu+0x19d/0xc50 kernel/rcu/srcutree.c:1325 process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325 worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472 kthread+0x421/0x510 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 25 Comm: ksoftirqd/1 Not tainted 5.15.148-syzkaller-00013-gad06eaf051cd #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:ffffc900001a73c0 EFLAGS: 00000246 RAX: 0000000000000003 RBX: 1ffff92000034e7c RCX: ffffffff8154f88f RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88812076cad8 RBP: ffffc900001a7470 R08: dffffc0000000000 R09: ffffed10240ed95c R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88812076cad8 R14: 0000000000000003 R15: 1ffff92000034e80 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001112b7000 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_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:178 sock_hash_delete_elem+0xb1/0x2f0 net/core/sock_map.c:937 bpf_prog_2c29ac5cdc6b1842+0x3a/0x390 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_run2+0xec/0x210 kernel/trace/bpf_trace.c:1920 __bpf_trace_kfree+0x6f/0x90 include/trace/events/kmem.h:118 trace_kfree include/trace/events/kmem.h:118 [inline] kfree+0x1f3/0x220 mm/slub.c:4569 sk_psock_free_link include/linux/skmsg.h:420 [inline] sock_map_del_link net/core/sock_map.c:160 [inline] sock_map_unref+0x352/0x4d0 net/core/sock_map.c:182 sock_hash_delete_elem+0x274/0x2f0 net/core/sock_map.c:941 bpf_prog_2c29ac5cdc6b1842+0x3a/0x390 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_run2+0xec/0x210 kernel/trace/bpf_trace.c:1920 __bpf_trace_kfree+0x6f/0x90 include/trace/events/kmem.h:118 trace_kfree include/trace/events/kmem.h:118 [inline] kfree+0x1f3/0x220 mm/slub.c:4569 security_task_free+0x9a/0xc0 security/security.c:1674 __put_task_struct+0xed/0x3e0 kernel/fork.c:802 put_task_struct include/linux/sched/task.h:141 [inline] delayed_put_task_struct+0x69/0x1a0 kernel/exit.c:222 rcu_do_batch+0x57a/0xc10 kernel/rcu/tree.c:2523 rcu_core+0x517/0x1020 kernel/rcu/tree.c:2763 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2776 __do_softirq+0x26d/0x5bf kernel/softirq.c:565 run_ksoftirqd+0x23/0x30 kernel/softirq.c:937 smpboot_thread_fn+0x466/0x8d0 kernel/smpboot.c:164 kthread+0x421/0x510 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298