RBP: 00007fc92cb3f980 R08: 0000000000000000 R09: 0000000500000000 R10: 0000001b31c20000 R11: 0000000000000246 R12: 0000000000055df5 R13: 00007fc92cb3df8c R14: 0000000000000032 R15: 00007fc92cb3f980 watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz-executor.0:7391] Modules linked in: CPU: 1 PID: 7391 Comm: syz-executor.0 Not tainted 5.15.149-syzkaller-00165-g85445b5a2107 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:__sanitizer_cov_trace_pc+0x1/0x60 kernel/kcov.c:190 Code: 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 74 1e 96 05 48 89 de e8 84 76 41 00 5b 5d c3 cc 55 <48> 89 e5 48 8b 45 08 65 48 8b 0d 10 36 92 7e 65 8b 15 11 36 92 7e RSP: 0018:ffffc90000ea7850 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 1ffff1103ee07af1 RCX: ffff8881193813c0 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000ea7978 R08: ffffffff8165929a R09: ffffed103ee271d3 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff8881f703d788 R14: ffff8881f7138e80 R15: dffffc0000000000 FS: 0000555555ab1480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31627000 CR3: 0000000111e41000 CR4: 00000000003506a0 Call Trace: on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1135 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:1201 [inline] text_poke_bp_batch+0x1c4/0x5d0 arch/x86/kernel/alternative.c:1392 text_poke_flush arch/x86/kernel/alternative.c:1560 [inline] text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1567 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146 __jump_label_update+0x36a/0x380 kernel/jump_label.c:459 jump_label_update+0x3af/0x450 kernel/jump_label.c:830 static_key_disable_cpuslocked+0xcd/0x1b0 kernel/jump_label.c:207 static_key_disable+0x1a/0x30 kernel/jump_label.c:215 tracepoint_remove_func kernel/tracepoint.c:417 [inline] tracepoint_probe_unregister+0x60a/0x900 kernel/tracepoint.c:551 bpf_probe_unregister+0x61/0x70 kernel/trace/bpf_trace.c:1954 bpf_raw_tp_link_release+0x63/0x90 kernel/bpf/syscall.c:2880 bpf_link_free+0x129/0x3f0 kernel/bpf/syscall.c:2451 bpf_link_put kernel/bpf/syscall.c:2477 [inline] bpf_link_release+0x170/0x180 kernel/bpf/syscall.c:2485 __fput+0x3fe/0x910 fs/file_table.c:280 ____fput+0x15/0x20 fs/file_table.c:308 task_work_run+0x129/0x190 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0xc4/0xe0 kernel/entry/common.c:175 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:301 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fc92ca06ea9 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:00007ffe392d5f88 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007fc92cb3f980 RCX: 00007fc92ca06ea9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007fc92cb3f980 R08: 0000000000000000 R09: 0000000500000000 R10: 0000001b31c20000 R11: 0000000000000246 R12: 0000000000055df5 R13: 00007fc92cb3df8c R14: 0000000000000032 R15: 00007fc92cb3f980 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 344 Comm: kworker/0:3 Not tainted 5.15.149-syzkaller-00165-g85445b5a2107 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: events destroy_super_work 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 7a 02 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:ffffc90000007880 EFLAGS: 00000046 RAX: 0000000000000003 RBX: 1ffff92000000f14 RCX: 00000000872cb200 RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffffffff872cb280 RBP: ffffc90000007930 R08: dffffc0000000000 R09: 0000000000000000 R10: fffffbfff0e59650 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffffffff872cb280 R14: 0000000000000003 R15: 1ffff92000000f18 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020793000 CR3: 000000011a480000 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 free_percpu+0x9e/0x1090 mm/percpu.c:2279 free_vfsmnt+0xf0/0x120 fs/namespace.c:569 delayed_free_vfsmnt+0x19/0x20 fs/namespace.c:576 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 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_map_delete net/core/sock_map.c:426 [inline] sock_map_delete_elem+0xcb/0x130 net/core/sock_map.c:448 bpf_prog_2c29ac5cdc6b1842+0x3a/0x8fc 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:1880 [inline] bpf_trace_run3+0x11e/0x250 kernel/trace/bpf_trace.c:1918 __bpf_trace_percpu_free_percpu+0x2b/0x40 include/trace/events/percpu.h:43 trace_percpu_free_percpu include/trace/events/percpu.h:43 [inline] free_percpu+0xd12/0x1090 mm/percpu.c:2306 percpu_free_rwsem+0x59/0x80 kernel/locking/percpu-rwsem.c:58 destroy_super_work+0x19/0x50 fs/super.c:164 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