wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.6:3891] Modules linked in: irq event stamp: 2571303 hardirqs last enabled at (2571302): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2571303): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2556480): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2556483): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 3891 Comm: syz-executor.6 Not tainted 6.12.0-next-20241122 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_release+0x171/0x6f0 Code: 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 80 3c 02 00 0f 85 cb 04 00 00 49 81 3c 24 40 8a 7d 87 0f 84 90 02 00 00 9c 8f 04 24 48 b8 00 00 00 00 00 fc ff df 48 89 ea 83 e5 07 48 c1 ea 03 83 RSP: 0018:ffff88806cf09540 EFLAGS: 00000202 RAX: dffffc0000000000 RBX: 1ffff1100d9e12aa RCX: ffffffff8130395e RDX: 1ffffffff0b82c28 RSI: 0000000000000008 RDI: 0000000000000000 RBP: ffffffff863fa1b4 R08: 0000000000000001 R09: fffffbfff0c7f282 R10: ffffffff863f9417 R11: 00000000000c398f R12: ffffffff85c16140 R13: ffffffff815281e6 R14: ffff8880097fb700 R15: 0000000000082820 FS: 00007f8303735700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2df303b260 CR3: 000000001d622000 CR4: 0000000000350ef0 Call Trace: __is_insn_slot_addr+0x13b/0x290 kernel_text_address+0x5b/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 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_node_noprof+0x14c/0x3e0 kmalloc_reserve+0x189/0x2b0 __alloc_skb+0x162/0x370 __netdev_alloc_skb+0x7a/0x7c0 __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+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 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:ffff888009787490 EFLAGS: 00000246 RAX: 000000000026c561 RBX: 0000000000000246 RCX: 1ffffffff0fdfeb6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8486ea6c RBP: ffff888008c4e900 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f 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 __kmalloc_noprof+0x195/0x4b0 security_inode_init_security+0x13e/0x390 __ext4_new_inode+0x355b/0x4df0 ext4_create+0x2e3/0x4e0 lookup_open.isra.0+0x1133/0x1550 path_openat+0xc91/0x2980 do_filp_open+0x1e9/0x450 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f83061bfb19 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:00007f8303735188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f83062d2f60 RCX: 00007f83061bfb19 RDX: 00000000000c4042 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 00007f8306219f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff6a240b2f R14: 00007f8303735300 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), 6 bytes skipped: 0: df 4c 89 e2 fisttps -0x1e(%rcx,%rcx,4) 4: 48 c1 ea 03 shr $0x3,%rdx 8: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) c: 0f 85 cb 04 00 00 jne 0x4dd 12: 49 81 3c 24 40 8a 7d cmpq $0xffffffff877d8a40,(%r12) 19: 87 1a: 0f 84 90 02 00 00 je 0x2b0 20: 9c pushfq 21: 8f 04 24 popq (%rsp) * 24: fa cli <-- trapping instruction 25: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 2c: fc ff df 2f: 48 89 ea mov %rbp,%rdx 32: 83 e5 07 and $0x7,%ebp 35: 48 c1 ea 03 shr $0x3,%rdx 39: 83 .byte 0x83