watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.0:8313] Modules linked in: irq event stamp: 1746685 hardirqs last enabled at (1746684): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (1746685): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (1725176): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1725181): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 8313 Comm: syz-executor.0 Not tainted 6.13.0-rc1-next-20241206 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xac4/0x2490 Code: 85 9a 18 00 00 49 89 47 58 48 3d 00 08 33 81 0f 84 74 0e 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 ee 48 c1 ee 03 80 3c 16 00 <0f> 85 53 15 00 00 4c 89 ea 49 89 47 58 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffff88806cf09528 EFLAGS: 00000246 RAX: ffffffff812d1b33 RBX: 0000000000000002 RCX: ffffffff8678f4e2 RDX: dffffc0000000000 RSI: 1ffff1100d9e12c8 RDI: 1ffff1100d9e12c8 RBP: ffff88806cf09640 R08: ffffffff8678f4e6 R09: ffff88806cf09628 R10: 000000000003a7a3 R11: 00000000000069ff R12: ffff88806cf09648 R13: ffff88806cf09630 R14: ffff88806cf095e8 R15: ffff88806cf095e8 FS: 00007ff81fd6f700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff0b48bf88 CR3: 000000003da12000 CR4: 0000000000350ef0 Call Trace: __unwind_start+0x517/0x7c0 arch_stack_walk+0x63/0xf0 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/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/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: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 77 f0 ff ff 49 89 c7 66 90 RSP: 0018:ffff88803fa8f808 EFLAGS: 00000246 RAX: ffff88803b8bf5c8 RBX: ffff88800d31f4c0 RCX: ffffea0000ee2fc0 RDX: 0000000000000000 RSI: ffff888008c4f780 RDI: 0000000000080000 RBP: ffff888008c4f780 R08: ffff888014f2f6f0 R09: 00000000000d000b R10: ffffea000053cb00 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88803fa8f840 R14: ffff888014f2f6f0 R15: ffff888014f2f6f0 kasan_quarantine_reduce+0x19f/0x240 __kasan_kmalloc+0x6f/0x90 mr_table_alloc+0x5f/0x2e0 ipmr_net_init+0x2b1/0x370 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x26c0/0x70e0 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff8227f9b19 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:00007ff81fd6f188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007ff82290cf60 RCX: 00007ff8227f9b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007ff822853f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd51690fbf R14: 00007ff81fd6f300 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): 0: 85 9a 18 00 00 49 test %ebx,0x49000018(%rdx) 6: 89 47 58 mov %eax,0x58(%rdi) 9: 48 3d 00 08 33 81 cmp $0xffffffff81330800,%rax f: 0f 84 74 0e 00 00 je 0xe89 15: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 1c: fc ff df 1f: 48 89 ee mov %rbp,%rsi 22: 48 c1 ee 03 shr $0x3,%rsi 26: 80 3c 16 00 cmpb $0x0,(%rsi,%rdx,1) * 2a: 0f 85 53 15 00 00 jne 0x1583 <-- trapping instruction 30: 4c 89 ea mov %r13,%rdx 33: 49 89 47 58 mov %rax,0x58(%r15) 37: 48 rex.W 38: b8 00 00 00 00 mov $0x0,%eax 3d: 00 fc add %bh,%ah 3f: ff .byte 0xff