IPVS: ftp: loaded support on port[0] = 21 ------------[ cut here ]------------ raw_local_irq_restore() called with IRQs enabled WARNING: CPU: 0 PID: 12843 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10 Modules linked in: CPU: 0 PID: 12843 Comm: syz-executor918 Not tainted 5.12.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10 Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d 5c 1b ac 04 00 74 01 c3 48 c7 c7 20 92 6b 89 c6 05 4b 1b ac 04 01 e8 9d d1 be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 RSP: 0018:ffffc90001b0f738 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffffff8c134400 RCX: 0000000000000000 RDX: ffff88809fb31c40 RSI: ffffffff815c3c85 RDI: fffff52000361ed9 RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815bca1e R11: 0000000000000000 R12: 0000000000000003 R13: fffffbfff1826880 R14: 0000000000000001 R15: ffff8880b9c35f80 FS: 00007f4d40dfd700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000485de0 CR3: 00000000246c6000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_wait arch/x86/kernel/kvm.c:860 [inline] kvm_wait+0xc9/0xe0 arch/x86/kernel/kvm.c:837 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+0x8b8/0xb40 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+0x200/0x2b0 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:354 [inline] __register_sysctl_table+0x588/0x1090 fs/proc/proc_sysctl.c:1327 mpls_dev_sysctl_register+0x1b7/0x2d0 net/mpls/af_mpls.c:1422 mpls_add_dev net/mpls/af_mpls.c:1473 [inline] mpls_dev_notify+0x245/0x900 net/mpls/af_mpls.c:1589 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2063 call_netdevice_notifiers_extack net/core/dev.c:2075 [inline] call_netdevice_notifiers net/core/dev.c:2089 [inline] register_netdevice+0x1030/0x14a0 net/core/dev.c:10214 register_netdev+0x2d/0x50 net/core/dev.c:10307 sit_init_net+0x3a4/0xac0 net/ipv6/sit.c:1917 ops_init+0xaf/0x470 net/core/net_namespace.c:140 setup_net+0x40f/0xa30 net/core/net_namespace.c:333 copy_net_ns+0x31e/0x760 net/core/net_namespace.c:474 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0xbd/0x1f0 kernel/nsproxy.c:226 ksys_unshare+0x445/0x8e0 kernel/fork.c:2990 __do_sys_unshare kernel/fork.c:3058 [inline] __se_sys_unshare kernel/fork.c:3056 [inline] __x64_sys_unshare+0x2d/0x40 kernel/fork.c:3056 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x445999 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 15 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4d40dfd318 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00000000004ca408 RCX: 0000000000445999 RDX: 00007f4d40dfd700 RSI: 0000000000000000 RDI: 0000000040000000 RBP: 00000000004ca400 R08: 00007f4d40dfd700 R09: 0000000000000000 R10: 00007f4d40dfd700 R11: 0000000000000246 R12: 00000000004ca40c R13: 00007ffcd3bc18df R14: 00007f4d40dfd400 R15: 0000000000022000