kthread+0x421/0x510 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 watchdog: BUG: soft lockup - CPU#1 stuck for 225s! [kworker/1:1:39] Modules linked in: CPU: 1 PID: 39 Comm: kworker/1:1 Tainted: G W 5.15.149-syzkaller-00490-g5d96939590c0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline] RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline] RIP: 0010:pv_hybrid_queued_unfair_trylock kernel/locking/qspinlock_paravirt.h:98 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x248/0xc40 kernel/locking/qspinlock.c:443 Code: 00 00 fc ff df 31 c0 b1 01 f0 41 0f b0 0f 84 c0 0f 84 b6 06 00 00 41 81 fc 00 00 01 00 72 24 41 81 e4 00 ff 00 00 75 1b f3 90 98 44 89 f9 80 e1 07 80 c1 03 38 c1 7c ac 4c 89 ff e8 51 52 5d RSP: 0018:ffffc9000028f0c0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff8881f7137ed4 RCX: ffffffff8154f60f RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888110bd8f88 RBP: ffffc9000028f1b0 R08: dffffc0000000000 R09: ffffed102217b1f2 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 1ffff1102217b1f1 R14: 1ffff1103ee26fd9 R15: ffff888110bd8f88 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cf22000 CR3: 0000000111dd7000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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/0xc2c 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 rh_call_control drivers/usb/core/hcd.c:732 [inline] rh_urb_enqueue drivers/usb/core/hcd.c:848 [inline] usb_hcd_submit_urb+0x7b6/0x1b70 drivers/usb/core/hcd.c:1555 usb_submit_urb+0x118c/0x1840 drivers/usb/core/urb.c:594 usb_start_wait_urb+0x120/0x350 drivers/usb/core/message.c:58 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x2ad/0x4c0 drivers/usb/core/message.c:153 get_port_status drivers/usb/core/hub.c:592 [inline] hub_ext_port_status+0xfe/0x6b0 drivers/usb/core/hub.c:609 hub_port_status drivers/usb/core/hub.c:631 [inline] hub_port_debounce+0x2e8/0x470 drivers/usb/core/hub.c:4633 hub_port_debounce_be_stable drivers/usb/core/hub.h:170 [inline] hub_port_connect drivers/usb/core/hub.c:5354 [inline] hub_port_connect_change drivers/usb/core/hub.c:5643 [inline] port_event drivers/usb/core/hub.c:5793 [inline] hub_event+0x1dd2/0x4770 drivers/usb/core/hub.c:5875 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 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 23008 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_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:ffffc90000f3efe0 EFLAGS: 00000046 RAX: 0000000000000003 RBX: 1ffff920001e7e00 RCX: ffffffff8154fa7f RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff888110bd8f88 RBP: ffffc90000f3f090 R08: dffffc0000000000 R09: ffffed102217b1f2 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888110bd8f88 R14: 0000000000000003 R15: 1ffff920001e7e04 FS: 00007f30d5a1c6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f30d6dcca30 CR3: 0000000113a80000 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 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/0xc2c 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/0xc2c 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 realloc_user_queue+0x108/0x2c0 sound/core/timer.c:1476 snd_timer_user_open+0x101/0x180 sound/core/timer.c:1503 snd_open+0x30e/0x380 sound/core/sound.c:169 chrdev_open+0x4f7/0x620 fs/char_dev.c:414 do_dentry_open+0x81c/0xfd0 fs/open.c:828 vfs_open+0x73/0x80 fs/open.c:958 do_open fs/namei.c:3608 [inline] path_openat+0x26f0/0x2f40 fs/namei.c:3742 do_filp_open+0x21c/0x460 fs/namei.c:3769 do_sys_openat2+0x13f/0x830 fs/open.c:1234 do_sys_open fs/open.c:1250 [inline] __do_sys_openat fs/open.c:1266 [inline] __se_sys_openat fs/open.c:1261 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1261 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: 0033:0x7f30d6ca8ea9 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:00007f30d5a1c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f30d6dd6f80 RCX: 00007f30d6ca8ea9 RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 00007f30d6cf54a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f30d6dd6f80 R15: 00007fff86af4458