syz-executor.6 (13751) used greatest stack depth: 23504 bytes left watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.5:13738] Modules linked in: irq event stamp: 4537337 hardirqs last enabled at (4537336): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (4537337): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (4536368): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (4536387): [] irq_exit_rcu+0x94/0xc0 CPU: 0 UID: 0 PID: 13738 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+0x5b/0xa0 Code: bb 4a 71 03 48 b8 00 00 00 00 00 fc ff df 48 8d 6b 58 48 89 ea 48 c1 ea 03 80 3c 02 00 75 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 RSP: 0018:ffff88806ce09098 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffff88806ce090b0 RCX: 0000000000000001 RDX: 1ffff1100d9c1221 RSI: ffff88803ac4f5f0 RDI: ffffffff84a0148a RBP: ffff88806ce09108 R08: 0000000000000001 R09: ffff88806ce090f0 R10: 000000000003c001 R11: 00000000000c17a1 R12: ffff88806ce09178 R13: 0000000000000000 R14: ffff88803471d280 R15: ffff88806ce096b0 FS: 00007f5fe037d700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff33d45fe8 CR3: 000000001a5c0000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x9d/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 __kasan_record_aux_stack+0x8c/0xa0 kvfree_call_rcu+0x29/0x980 cfg80211_update_known_bss+0x3c9/0x11e0 __cfg80211_bss_update+0xe0/0x1fe0 cfg80211_inform_single_bss_data+0x6e2/0x1c50 cfg80211_inform_bss_data+0x20f/0x3510 cfg80211_inform_bss_frame_data+0x250/0x690 ieee80211_bss_info_update+0x2f6/0xa90 ieee80211_scan_rx+0x474/0xac0 ieee80211_rx_list+0x1e38/0x2840 ieee80211_rx_napi+0xdc/0x3b0 ieee80211_handle_queued_frames+0xd9/0x130 tasklet_action_common+0x235/0x3b0 handle_softirqs+0x1b1/0x770 irq_exit_rcu+0x94/0xc0 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 86 50 aa fc 48 89 ef e8 8e c3 aa fc 80 e7 02 74 06 e8 54 1e d4 fc fb 65 ff 0d 94 ec 7d 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:ffff88803ac4f6b8 EFLAGS: 00000246 RAX: 0000000000453841 RBX: 0000000000000256 RCX: 1ffffffff0fde6c7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8485ba2c RBP: ffff88800afd8840 R08: 0000000000000001 R09: fffffbfff0fdc5e9 R10: ffffffff87ee2f4f R11: 0000000000000000 R12: 0000000000000000 R13: ffff88803ac4f708 R14: ffff88802f518f78 R15: ffff88802f518f78 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 __kmalloc_cache_noprof+0x316/0x3e0 alloc_mnt_ns+0xcf/0x4d0 copy_mnt_ns+0x112/0xac0 create_new_namespaces+0xd6/0xaf0 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: 0033:0x7f5fe2e49b19 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:00007f5fe037d188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f5fe2f5d0e0 RCX: 00007f5fe2e49b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000380 RBP: 00007f5fe2ea3f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff8affd7df R14: 00007f5fe037d300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 4a 71 03 rex.WX jno 0x6 3: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax a: fc ff df d: 48 8d 6b 58 lea 0x58(%rbx),%rbp 11: 48 89 ea mov %rbp,%rdx 14: 48 c1 ea 03 shr $0x3,%rdx 18: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 1c: 75 36 jne 0x54 1e: 48 8b 7b 58 mov 0x58(%rbx),%rdi 22: e8 57 64 0d 00 callq 0xd647e 27: 85 c0 test %eax,%eax * 29: 74 cf je 0xfffffffa <-- trapping instruction 2b: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 32: fc ff df 35: 48 89 ea mov %rbp,%rdx 38: 48 c1 ea 03 shr $0x3,%rdx 3c: 80 .byte 0x80 3d: 3c 02 cmp $0x2,%al