watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.5:25862] Modules linked in: irq event stamp: 4592023 hardirqs last enabled at (4592022): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4592023): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4560952): [] irq_exit_rcu+0x11f/0x190 softirqs last disabled at (4560955): [] irq_exit_rcu+0x11f/0x190 CPU: 1 PID: 25862 Comm: syz-executor.5 Not tainted 6.2.0-rc4-next-20230120 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xb58/0x2130 Code: 4c 89 44 24 20 e8 98 ed ff ff 48 8b 0c 24 4c 8b 44 24 20 48 ba 00 00 00 00 00 fc ff df 4c 8b 4c 24 28 48 c1 e9 03 80 3c 11 00 <0f> 85 ba 0e 00 00 49 8b 56 58 49 89 46 48 48 81 fa e0 5f 11 81 0f RSP: 0018:ffff88806cf09768 EFLAGS: 00000246 RAX: ffff8880497afb48 RBX: 0000000000000001 RCX: 1ffff1100d9e1306 RDX: dffffc0000000000 RSI: ffff8880497afa98 RDI: ffff8880497afb30 RBP: ffff88806cf09840 R08: ffffffff8647c82e R09: ffffffff8647c832 R10: ffff88806cf09ff8 R11: 0000000000038001 R12: ffff88806cf09829 R13: ffff88806cf09848 R14: ffff88806cf097e8 R15: ffffffff8647c833 FS: 00007fdc1f12e700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fde9a314718 CR3: 0000000031fb6000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b4/0xc40 __kmem_cache_alloc_node+0x1ed/0x2f0 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x567/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x274/0x8ff irq_exit_rcu+0x11f/0x190 sysvec_irq_work+0x92/0xc0 asm_sysvec_irq_work+0x1a/0x20 RIP: 0010:generic_exec_single+0x210/0x300 Code: 31 e4 4c 89 ef e8 50 30 06 03 e9 e8 fe ff ff e8 46 c0 0a 00 e8 f1 d5 11 00 4c 89 ef e8 39 30 06 03 e8 04 d4 11 00 fb 45 31 e4 c8 fe ff ff e8 26 c0 0a 00 0f 0b e9 73 ff ff ff 4c 89 f7 e8 27 RSP: 0018:ffff8880497afb48 EFLAGS: 00000246 RAX: 0000000000000109 RBX: 0000000000000200 RCX: ffffffff812b8e3f RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffff81587980 R08: 0000000000000001 R09: ffffffff8765b9ef R10: fffffbfff0ecb73d R11: 0000000000000001 R12: 0000000000000000 R13: ffff8880497afc78 R14: ffff8880497afbc8 R15: 0000000000000200 smp_call_function_single+0x18d/0x470 task_function_call+0xe5/0x180 perf_install_in_context+0x2cb/0x570 __do_sys_perf_event_open+0x1888/0x2a30 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fdc21bb8b19 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:00007fdc1f12e188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fdc21ccbf60 RCX: 00007fdc21bb8b19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000100 RBP: 00007fdc21c12f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffda59a90f R14: 00007fdc1f12e300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess): 0: 4c 89 44 24 20 mov %r8,0x20(%rsp) 5: e8 98 ed ff ff callq 0xffffeda2 a: 48 8b 0c 24 mov (%rsp),%rcx e: 4c 8b 44 24 20 mov 0x20(%rsp),%r8 13: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 1a: fc ff df 1d: 4c 8b 4c 24 28 mov 0x28(%rsp),%r9 22: 48 c1 e9 03 shr $0x3,%rcx 26: 80 3c 11 00 cmpb $0x0,(%rcx,%rdx,1) * 2a: 0f 85 ba 0e 00 00 jne 0xeea <-- trapping instruction 30: 49 8b 56 58 mov 0x58(%r14),%rdx 34: 49 89 46 48 mov %rax,0x48(%r14) 38: 48 81 fa e0 5f 11 81 cmp $0xffffffff81115fe0,%rdx 3f: 0f .byte 0xf