watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.6:18671] Modules linked in: irq event stamp: 3231963 hardirqs last enabled at (3231962): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3231963): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3204552): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3204557): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 18671 Comm: syz-executor.6 Not tainted 6.12.0-next-20241121 #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 4e a9 fc 48 89 ef e8 6e c1 a9 fc 80 e7 02 74 06 e8 e4 1a d3 fc fb 65 ff 0d 54 bc 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:ffff88806cf09b68 EFLAGS: 00000206 RAX: 00000000003150d0 RBX: 0000000000000246 RCX: 1ffffffff0fdfab6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8486ea6c RBP: ffffffff85d01a00 R08: 0000000000000001 R09: fffffbfff0fdd9f1 R10: ffffffff87eecf8f R11: 000000943ad3728f R12: 0000000000000000 R13: 0000000000000246 R14: 0000000000000000 R15: ffff8880437e0000 FS: 00007f7f6c18c700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555569bbc98 CR3: 000000000a0d8000 CR4: 0000000000350ef0 Call Trace: delete_object_full+0x46/0x70 kmem_cache_free+0x2ae/0x470 skb_release_data+0x814/0x990 consume_skb+0xd0/0x160 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:put_cpu_partial+0x10a/0x1b0 Code: 24 28 75 5b 49 c7 44 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 e4 92 ab ff 4d 85 ed 74 06 e8 6a 5f d5 ff fb 4d 85 f6 <74> 1c 5b 4c 89 f6 48 89 ef 5d 41 5c 41 5d 41 5e e9 c1 fa ff ff 44 RSP: 0018:ffff8880436ef6e0 EFLAGS: 00000246 RAX: 000000000030e5cb RBX: ffffea0000329f80 RCX: 1ffffffff0fdfab6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8184a5e6 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fdd9f1 R10: ffffffff87eecf8f R11: 00000000000007e0 R12: ffff88806cf40350 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88800ca7e000 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_kmalloc+0x6f/0x90 __kmalloc_noprof+0x1f7/0x4b0 ops_init+0x77/0x650 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: 0033:0x7f7f6ec16b19 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:00007f7f6c18c188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f7f6ed29f60 RCX: 00007f7f6ec16b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f7f6ec70f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdbf63965f R14: 00007f7f6c18c300 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 4e a9 fc callq 0xfca94e75 f: 48 89 ef mov %rbp,%rdi 12: e8 6e c1 a9 fc callq 0xfca9c185 17: 80 e7 02 and $0x2,%bh 1a: 74 06 je 0x22 1c: e8 e4 1a d3 fc callq 0xfcd31b05 21: fb sti 22: 65 ff 0d 54 bc 7c 7b decl %gs:0x7b7cbc54(%rip) # 0x7b7cbc7d * 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