option from the mount to silence this warning. ======================================================= SELinux: security_context_str_to_sid (staff_u) failed with errno=-22 SELinux: security_context_str_to_sid (staff_u) failed with errno=-22 watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:3893] Modules linked in: irq event stamp: 6278749 hardirqs last enabled at (6278748): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (6278749): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (6268060): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (6268063): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 3893 Comm: syz-executor.6 Tainted: G L 6.4.0-rc4-next-20230601 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0x4/0x170 Code: e2 66 46 00 e9 ac fd ff ff 48 89 df e8 a5 66 46 00 e9 3e fd ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <48> b8 00 00 00 00 00 fc ff df 55 53 48 89 fb 48 83 c7 10 48 89 fa RSP: 0018:ffff88806ce096b0 EFLAGS: 00000286 RAX: ffffffff836a1fdb RBX: ffffffff813ac870 RCX: 0000000000000001 RDX: 1ffff1100d9c12e2 RSI: ffffffff836a1fdb RDI: ffff88806ce09780 RBP: ffff88806ce09750 R08: ffffffff863210da R09: ffffffff863210de R10: 0000000000038001 R11: ffff88806ce096f8 R12: ffff88806ce09780 R13: 0000000000000000 R14: ffff888031a6b680 R15: 0000000000000820 FS: 00007f80f366b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7a0a827f60 CR3: 000000000d89e000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x77/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_node+0x189/0x3a0 __alloc_skb+0x28c/0x330 skb_copy+0x13d/0x3f0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb11/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x427/0x730 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x59d/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:unwind_next_frame+0x2b1/0x2480 Code: 3c 7f 48 8d bc 3f 30 fb 06 86 48 81 ff 90 47 4e 86 0f 87 ef 13 00 00 4c 89 c6 44 29 da 48 8d 3c 85 f0 72 d7 85 e8 8f f3 ff ff <49> 89 c0 e9 28 07 00 00 80 3d f7 1d be 04 00 4d 8d 5f 40 75 3a 48 RSP: 0018:ffff8880440bed38 EFLAGS: 00000286 RAX: ffffffff863b7da0 RBX: 0000000000000001 RCX: ffffffff836a5900 RDX: 0000000000000000 RSI: ffffffff863b7da0 RDI: ffffffff85fa7490 RBP: ffff8880440bee00 R08: ffffffff863b7da0 R09: ffffffff863b7a20 R10: 0000000000038001 R11: 000000000008c068 R12: ffff8880440bee08 R13: ffff8880440bedf0 R14: ffff8880440bede9 R15: ffff8880440beda8 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2b/0x50 __kasan_slab_free+0x10a/0x190 __kmem_cache_free+0xd1/0x2f0 __free_slab+0x73/0x100 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x172/0x390 __create_object+0x3c/0xc90 kmem_cache_alloc+0x213/0x390 __kernfs_new_node+0xd4/0x870 kernfs_new_node+0x97/0x120 __kernfs_create_file+0x55/0x350 sysfs_add_file_mode_ns+0x21c/0x440 internal_create_group+0x322/0xb90 internal_create_groups.part.0+0x90/0x140 sysfs_create_groups+0x29/0x50 device_add+0xfc9/0x18a0 netdev_register_kobject+0x17e/0x3b0 register_netdevice+0xd60/0x1530 register_netdev+0x31/0x60 loopback_net_init+0x7a/0x180 ops_init+0xbb/0x6b0 setup_net+0x3d9/0x990 copy_net_ns+0x321/0x770 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x414/0x500 copy_process+0x2b78/0x73b0 kernel_clone+0xeb/0x7d0 __do_sys_clone3+0x1d5/0x250 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f80f60f5b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f80f366b188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f80f6208f60 RCX: 00007f80f60f5b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f80f614ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffff0a632f R14: 00007f80f366b300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Tainted: G L 6.4.0-rc4-next-20230601 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xb20 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 5c 09 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 5a 21 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff88806cf08e28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8451582b RDX: fffffbfff0b4c501 RSI: 0000000000000004 RDI: ffffffff85a62800 RBP: ffffffff85a62800 R08: 0000000000000000 R09: fffffbfff0b4c500 R10: ffffffff85a62803 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4c500 R14: 0000000000000001 R15: 1ffff1100d9e11c6 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556402ee459c CR3: 000000000d822000 CR4: 0000000000350ee0 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6e7/0x1330 mac80211_hwsim_tx+0x7b9/0x2240 ieee80211_handle_wake_tx_queue+0x18d/0x260 ieee80211_queue_skb+0xaf6/0x1f20 ieee80211_tx+0x2cc/0x400 ieee80211_xmit+0x1f5/0x270 __ieee80211_subif_start_xmit+0x9da/0x1240 ieee80211_subif_start_xmit+0xf0/0x1380 dev_hard_start_xmit+0x173/0x6b0 __dev_queue_xmit+0x22c7/0x36c0 ip6_finish_output2+0x142d/0x1b80 __ip6_finish_output+0x68c/0xff0 ip6_output+0x1e0/0x530 ndisc_send_skb+0xa7b/0x1c10 ndisc_send_rs+0x135/0x550 addrconf_rs_timer+0x2f0/0x810 call_timer_fn+0x17d/0x4e0 expire_timers+0x272/0x460 run_timer_softirq+0x2f5/0x880 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0xf/0x20 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d c3 52 33 00 fb f4 e9 1b 4d 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff888008e2fe70 EFLAGS: 00000206 RAX: 00000000000f2b5f RBX: 0000000000000001 RCX: ffffffff844f1d4e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812882c5 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e69f8 R10: ffff88806cf34fc3 R11: 0000000000000001 R12: ffffffff85d39d50 R13: 1ffff110011c5fd3 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x305/0x3c0 cpu_startup_entry+0x18/0x20 start_secondary+0x19f/0x200 secondary_startup_64_no_verify+0x179/0x17b ---------------- Code disassembly (best guess), 4 bytes skipped: 0: e9 ac fd ff ff jmpq 0xfffffdb1 5: 48 89 df mov %rbx,%rdi 8: e8 a5 66 46 00 callq 0x4666b2 d: e9 3e fd ff ff jmpq 0xfffffd50 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: f3 0f 1e fa endbr64 * 26: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 2d: fc ff df 30: 55 push %rbp 31: 53 push %rbx 32: 48 89 fb mov %rdi,%rbx 35: 48 83 c7 10 add $0x10,%rdi 39: 48 89 fa mov %rdi,%rdx