watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.5:11743] Modules linked in: irq event stamp: 2285053 hardirqs last enabled at (2285052): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2285053): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2270732): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2270743): [] irq_exit_rcu+0x94/0xc0 CPU: 0 UID: 0 PID: 11743 Comm: syz-executor.5 Not tainted 6.12.0-rc5-next-20241104 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_get_return_address+0x79/0xa0 Code: 36 48 8b 7b 58 e8 57 64 0d 00 85 c0 74 cf 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 75 1c 48 8b 43 58 5b <5d> e9 71 4a 71 03 e8 0c 28 77 00 eb a0 48 89 ef e8 32 28 77 00 eb RSP: 0018:ffff88806ce095e8 EFLAGS: 00000246 RAX: ffffffff818b8649 RBX: ffffffff813ef450 RCX: ffffffff86839201 RDX: 1ffff1100d9c12ca RSI: 0000000000000000 RDI: ffffffff818b8649 RBP: ffff88806ce09650 R08: ffffffff868392a0 R09: ffff88806ce09638 R10: 000000000003c001 R11: 0000000000023c5b R12: ffff88806ce096c0 R13: 0000000000000000 R14: ffff88803ee99b80 R15: 0000000000092820 FS: 00007f90a6730700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffce50cdc78 CR3: 000000001c9f2000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x9d/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_node_noprof+0x311/0x3e0 __alloc_skb+0x2ad/0x370 __netdev_alloc_skb+0x7a/0x7a0 __ieee80211_beacon_get+0x3f4/0xfc0 ieee80211_beacon_get_tim+0xa6/0x280 mac80211_hwsim_beacon_tx+0x49b/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+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:qlist_free_all+0x28/0x160 Code: 90 90 48 8b 07 48 85 c0 0f 84 41 01 00 00 41 57 41 56 41 55 49 89 fd 41 54 49 89 f4 55 53 eb 3e 48 63 95 c0 00 00 00 48 8b 18 <48> 89 ef 48 29 d0 48 89 c6 49 89 c6 e8 e7 f0 ff ff 49 89 c7 66 90 RSP: 0018:ffff88801665f5e0 EFLAGS: 00000246 RAX: ffff88800dae1de0 RBX: ffff88800dae16f0 RCX: ffffea000036b840 RDX: 0000000000000000 RSI: ffff888008c4f780 RDI: ffffffff81846b56 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fdc5e9 R10: ffffffff87ee2f4f R11: 0000000000000000 R12: 0000000000000000 R13: ffff88801665f618 R14: ffff88800d4265c8 R15: ffff88800d4265c8 kasan_quarantine_reduce+0x19f/0x240 __kasan_kmalloc+0x6f/0x90 __kmalloc_noprof+0x1f7/0x4b0 __register_sysctl_table+0xb6/0x16d0 nf_log_net_init+0x10a/0x380 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8e60 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f90a91bab19 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:00007f90a6730188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f90a92cdf60 RCX: 00007f90a91bab19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f90a9214f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe6589bcdf R14: 00007f90a6730300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 11704 Comm: systemd-udevd Not tainted 6.12.0-rc5-next-20241104 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0x65/0x170 Code: 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e ad 00 00 00 31 c0 3b 6b 08 0f 83 81 00 00 00 <48> b8 00 00 00 00 00 fc ff df 48 8d 7b 0c 48 89 fa 48 c1 ea 03 0f RSP: 0018:ffff88803ea77678 EFLAGS: 00000283 RAX: 0000000000000000 RBX: ffff88803ea77760 RCX: 0000000000000001 RDX: 1ffff11007d4eeed RSI: ffffffff8483332f RDI: ffff88803ea77768 RBP: 000000000000000e R08: 0000000000000001 R09: ffff88803ea776d8 R10: 000000000003c001 R11: 0000000000025723 R12: ffff88803ea77760 R13: 0000000000000000 R14: ffff88803ee98000 R15: 0000000000092cc0 FS: 00007f7a49fd28c0(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff0a74def8 CR3: 000000002dc4a000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x77/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 __kmalloc_cache_noprof+0x316/0x3e0 uevent_show+0x160/0x390 dev_attr_show+0x55/0xe0 sysfs_kf_seq_show+0x21f/0x430 seq_read_iter+0x50e/0x1300 kernfs_fop_read_iter+0x415/0x5a0 vfs_read+0x85a/0xbd0 ksys_read+0x122/0x250 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7a4a481e8e Code: c0 e9 b6 fe ff ff 50 48 8d 3d 6e 18 0a 00 e8 b9 e7 01 00 66 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28 RSP: 002b:00007fff0a7503a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000561e68c2b930 RCX: 00007f7a4a481e8e RDX: 0000000000001000 RSI: 0000561e68c743d0 RDI: 0000000000000010 RBP: 00007f7a4a5534a0 R08: 0000000000000010 R09: 00007f7a4a551be0 R10: 0000000000000010 R11: 0000000000000246 R12: 0000000000001001 R13: 0000561e68c743d0 R14: 0000000000000d68 R15: 00007f7a4a5528a0 ---------------- Code disassembly (best guess): 0: 36 48 8b 7b 58 mov %ss:0x58(%rbx),%rdi 5: e8 57 64 0d 00 callq 0xd6461 a: 85 c0 test %eax,%eax c: 74 cf je 0xffffffdd e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 15: fc ff df 18: 48 89 ea mov %rbp,%rdx 1b: 48 c1 ea 03 shr $0x3,%rdx 1f: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 23: 75 1c jne 0x41 25: 48 8b 43 58 mov 0x58(%rbx),%rax 29: 5b pop %rbx * 2a: 5d pop %rbp <-- trapping instruction 2b: e9 71 4a 71 03 jmpq 0x3714aa1 30: e8 0c 28 77 00 callq 0x772841 35: eb a0 jmp 0xffffffd7 37: 48 89 ef mov %rbp,%rdi 3a: e8 32 28 77 00 callq 0x772871 3f: eb .byte 0xeb