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 26s! [syz-executor.0:8055] Modules linked in: irq event stamp: 2775263 hardirqs last enabled at (2775262): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2775263): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2762688): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2762693): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 8055 Comm: syz-executor.0 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:_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:ffff88806cf09bc8 EFLAGS: 00000206 RAX: 00000000002a58c0 RBX: 0000000000000202 RCX: 1ffffffff0fdfecf RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8486ea6c RBP: ffff88803d53d4a0 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 00000000000c398f R12: ffff8880097a18c0 R13: ffffea000106bbc0 R14: 0000000000000000 R15: ffff888041aef640 FS: 00007f12f7da3700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff4b753d1f0 CR3: 0000000015f94000 CR4: 0000000000350ef0 Call Trace: __delete_object+0x2b/0x50 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: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:ffff88803385f2a0 EFLAGS: 00000246 RAX: 00000000002a27c3 RBX: ffffea0000627300 RCX: 1ffffffff0fdfecf RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8184a5e6 RBP: ffff8880097a18c0 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 0000000000000000 R12: ffff88806cf43450 R13: 0000000000000200 R14: 0000000000000000 R15: ffff8880189cc500 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 ext4_free_blocks+0xacd/0x1a20 ext4_free_branches+0x2fd/0x6b0 ext4_free_branches+0x44d/0x6b0 ext4_ind_truncate+0x696/0x910 ext4_truncate+0xdf1/0x1190 ext4_setattr+0x1a64/0x2540 notify_change+0x677/0x1240 do_truncate+0x143/0x200 path_openat+0x22da/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: 0033:0x7f12fa82db19 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:00007f12f7da3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f12fa940f60 RCX: 00007f12fa82db19 RDX: 00000000000a0200 RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 00007f12fa887f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffb721ddff R14: 00007f12f7da3300 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