watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.6:11677] Modules linked in: irq event stamp: 2016473 hardirqs last enabled at (2016472): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (2016473): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2000374): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2000387): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 11677 Comm: syz-executor.6 Not tainted 6.12.0-next-20241125 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 66 1e a9 fc 48 89 ef e8 6e 91 a9 fc 80 e7 02 74 06 e8 e4 ea d2 fc fb 65 ff 0d 54 8c 7c 7b <74> 07 5b 5d e9 a3 1e 00 00 0f 1f 44 00 00 5b 5d e9 97 1e 00 00 0f RSP: 0018:ffff88806cf09bb8 EFLAGS: 00000206 RAX: 00000000001ec4d8 RBX: 0000000000000246 RCX: 1ffffffff0fe00b6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84871a6c RBP: ffffffff85d01a00 R08: 0000000000000001 R09: fffffbfff0fddff1 R10: ffffffff87eeff8f R11: 00000000000c39c9 R12: 0000000000000000 R13: 0000000000000246 R14: 0000000000000000 R15: ffff8880157cf3c0 FS: 00007fc6d1b1a700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005585cab5af58 CR3: 000000002cb98000 CR4: 0000000000350ef0 Call Trace: delete_object_full+0x46/0x70 kmem_cache_free+0x2ae/0x470 kfree_skbmem+0x18a/0x1f0 consume_skb+0xdd/0x160 mac80211_hwsim_tx_frame+0x1f6/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 66 1e a9 fc 48 89 ef e8 6e 91 a9 fc 80 e7 02 74 06 e8 e4 ea d2 fc fb 65 ff 0d 54 8c 7c 7b <74> 07 5b 5d e9 a3 1e 00 00 0f 1f 44 00 00 5b 5d e9 97 1e 00 00 0f RSP: 0018:ffff88803ee5f010 EFLAGS: 00000246 RAX: 00000000001e8601 RBX: 0000000000000246 RCX: 1ffffffff0fe00b6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84871a6c RBP: ffff888008c4e900 R08: 0000000000000001 R09: fffffbfff0fddff1 R10: ffffffff87eeff8f R11: 00000000000007e0 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888008c4f780 R15: 0000000000000246 __put_partials+0xc4/0x110 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __kernfs_new_node+0xd4/0x850 kernfs_new_node+0x18b/0x250 __kernfs_create_file+0x55/0x360 sysfs_add_file_mode_ns+0x21c/0x440 internal_create_group+0x573/0xeb0 internal_create_groups.part.0+0x90/0x140 sysfs_create_groups+0x29/0x50 kobject_add_internal+0x29b/0x9a0 kobject_init_and_add+0x101/0x170 netdev_queue_update_kobjects+0x216/0x4f0 netdev_register_kobject+0x2e7/0x3b0 register_netdevice+0x1332/0x1ab0 register_netdev+0x31/0x60 sit_init_net+0x28b/0x5c0 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8e90 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc6d45a4b19 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:00007fc6d1b1a188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fc6d46b7f60 RCX: 00007fc6d45a4b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007fc6d45fef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe5ea7ffef R14: 00007fc6d1b1a300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 18 53 48 sbb %dl,0x48(%rbx) 3: 89 f3 mov %esi,%ebx 5: 48 8b 74 24 10 mov 0x10(%rsp),%rsi a: e8 66 1e a9 fc callq 0xfca91e75 f: 48 89 ef mov %rbp,%rdi 12: e8 6e 91 a9 fc callq 0xfca99185 17: 80 e7 02 and $0x2,%bh 1a: 74 06 je 0x22 1c: e8 e4 ea d2 fc callq 0xfcd2eb05 21: fb sti 22: 65 ff 0d 54 8c 7c 7b decl %gs:0x7b7c8c54(%rip) # 0x7b7c8c7d * 29: 74 07 je 0x32 <-- trapping instruction 2b: 5b pop %rbx 2c: 5d pop %rbp 2d: e9 a3 1e 00 00 jmpq 0x1ed5 32: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 37: 5b pop %rbx 38: 5d pop %rbp 39: e9 97 1e 00 00 jmpq 0x1ed5 3e: 0f .byte 0xf