watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.2:9648] Modules linked in: irq event stamp: 2416267 hardirqs last enabled at (2416266): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2416267): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2369678): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2369681): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 9648 Comm: syz-executor.2 Not tainted 6.13.0-rc3-next-20241220 #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: 1b d1 75 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 67 95 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:ffff88806ce09850 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffff88806ce09868 RCX: 0000000000000001 RDX: 1ffff1100d9c1318 RSI: ffff888041157968 RDI: ffffffff81af009d RBP: ffff88806ce098c0 R08: 0000000000000001 R09: ffff88806ce098a8 R10: 000000000003aab6 R11: 0000000000025311 R12: ffff88806ce09930 R13: 0000000000000000 R14: ffff88800a601bc0 R15: ffff88801c2bc280 FS: 00007f1e8fb75700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffe0898d98 CR3: 000000003f832000 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_save_free_info+0x3a/0x60 __kasan_slab_free+0x38/0x50 kmem_cache_free+0x138/0x470 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/0xa80 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 f6 f1 a5 fc 48 89 ef e8 7e 60 a6 fc 80 e7 02 74 06 e8 b4 77 cf fc fb 65 ff 0d 54 5b 59 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:ffff888041157810 EFLAGS: 00000246 RAX: 00000000002336a7 RBX: 0000000000000246 RCX: 1ffffffff0fe1cf9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84aa4bac RBP: ffff888008c4e900 R08: 0000000000000001 R09: fffffbfff0fdfbe9 R10: ffffffff87efdf4f R11: 0000000000000000 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 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_noprof+0x300/0x3d0 vm_area_dup+0x52/0x160 dup_mm+0x9ee/0x1ee0 copy_process+0x704e/0x70e0 kernel_clone+0xeb/0x850 __do_sys_fork+0x80/0xc0 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1e925ffb19 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:00007f1e8fb75188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039 RAX: ffffffffffffffda RBX: 00007f1e92712f60 RCX: 00007f1e925ffb19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f1e92659f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcfc0d877f R14: 00007f1e8fb75300 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): 0: 1b d1 sbb %ecx,%edx 2: 75 03 jne 0x7 4: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax b: fc ff df e: 48 8d 6b 58 lea 0x58(%rbx),%rbp 12: 48 89 ea mov %rbp,%rdx 15: 48 c1 ea 03 shr $0x3,%rdx 19: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 1d: 75 36 jne 0x55 1f: 48 8b 7b 58 mov 0x58(%rbx),%rdi 23: e8 67 95 0d 00 callq 0xd958f 28: 85 c0 test %eax,%eax * 2a: 74 cf je 0xfffffffb <-- trapping instruction 2c: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 33: fc ff df 36: 48 89 ea mov %rbp,%rdx 39: 48 c1 ea 03 shr $0x3,%rdx 3d: 80 .byte 0x80 3e: 3c 02 cmp $0x2,%al