watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.2:19779] Modules linked in: irq event stamp: 5529121 hardirqs last enabled at (5529120): [<ffffffff8460144a>] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5529121): [<ffffffff8442c25f>] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (5518826): [<ffffffff8118247f>] irq_exit_rcu+0x11f/0x190 softirqs last disabled at (5518831): [<ffffffff8118247f>] irq_exit_rcu+0x11f/0x190 CPU: 0 PID: 19779 Comm: syz-executor.2 Not tainted 6.2.0-rc4-next-20230119 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x5e/0xf0 Code: 89 fe 48 89 fd eb 0c 48 8d 6b 04 49 89 de 49 39 ec 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 <48> 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 48 89 d8 83 e0 RSP: 0018:ffff88806ce09760 EFLAGS: 00000257 RAX: 0000000000000000 RBX: ffffffff85f1f4d0 RCX: ffffffff82ff802d RDX: 0000000000000001 RSI: ffffffff862fe07c RDI: ffffffff85f1f4c8 RBP: ffffffff85f1f4c8 R08: ffffffff862fe07c R09: ffffffff862fdf84 R10: ffffed1001eccd68 R11: 0000000000038001 R12: ffffffff85f1f4cc R13: ffffffff85f1f4c8 R14: ffffffff85f1f4c8 R15: dffffc0000000000 FS: 00007f69db9ad700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005621e00fb0c0 CR3: 000000000f12c000 CR4: 0000000000350ef0 Call Trace: <IRQ> unwind_next_frame+0x2b1/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x378/0xc00 kmem_cache_alloc_node+0x215/0x310 __alloc_skb+0x21a/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_apic_timer_interrupt+0x92/0xc0 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:put_cpu_partial+0x115/0x1c0 Code: 39 43 28 75 61 48 c7 43 28 00 00 00 00 48 c7 c6 90 cf 7c 81 48 89 df e8 f9 50 af ff 48 85 ed 74 06 e8 5f b1 d3 ff fb 4d 85 ed <74> 21 5b 4c 89 ee 5d 4c 89 e7 41 5c 41 5d 41 5e 41 5f e9 54 fa ff RSP: 0018:ffff88801e48f688 EFLAGS: 00000246 RAX: 00000000005435ed RBX: ffff88806ce3cee0 RCX: ffffffff812b827f RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000200 R08: 0000000000000001 R09: ffffffff8765b96f R10: fffffbfff0ecb72d R11: 0000000000000001 R12: ffff888008441c80 R13: 0000000000000000 R14: ffffea00005bd300 R15: 0000000000000001 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x172/0x300 __create_object+0x3d/0xc00 __kmem_cache_alloc_node+0x1ed/0x2f0 __kmalloc_node_track_caller+0x43/0xb0 kmemdup+0x2c/0x60 ipv6_sysctl_net_init+0x30/0x2a0 ops_init+0xbb/0x6c0 setup_net+0x40c/0x9d0 copy_net_ns+0x321/0x770 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x414/0x500 copy_process+0x2a5e/0x7390 kernel_clone+0xeb/0x8c0 __do_sys_clone3+0x1d5/0x2e0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f69de458b19 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:00007f69db9ad188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f69de56c020 RCX: 00007f69de458b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f69de4b2f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd87ee381f R14: 00007f69db9ad300 R15: 0000000000022000 </TASK> Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.2.0-rc4-next-20230119 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0xc2/0xc90 Code: 01 c5 41 83 c4 03 be 04 00 00 00 48 89 ef e8 45 70 38 fd 41 0f b6 45 00 41 38 c4 7c 08 84 c0 0f 85 35 0a 00 00 8b 5d 00 85 db <75> 62 be 04 00 00 00 48 89 ef e8 4f 70 38 fd 89 d8 f0 44 0f b1 75 RSP: 0018:ffff88806cf09a30 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8444eaeb RDX: fffffbfff0b491d1 RSI: 0000000000000004 RDI: ffffffff85a48e80 RBP: ffffffff85a48e80 R08: 0000000000000000 R09: ffffffff85a48e83 R10: fffffbfff0b491d0 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b491d0 R14: 0000000000000001 R15: 1ffff1100d9e1347 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005621e00f1648 CR3: 00000000183d4000 CR4: 0000000000350ee0 Call Trace: <IRQ> do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 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_apic_timer_interrupt+0x92/0xc0 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0xf/0x20 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 83 96 3f 00 fb f4 <fa> e9 5f 20 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff888008dffe70 EFLAGS: 00000206 RAX: 0000000000c84e41 RBX: 0000000000000001 RCX: ffffffff8442d7e2 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff888008d85040 R08: 0000000000000001 R09: ffff88806cf34f83 R10: ffffed100d9e69f0 R11: 0000000000000001 R12: ffffed10011b0a08 R13: ffffffff85d113d0 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x30d/0x3e0 cpu_startup_entry+0x18/0x20 start_secondary+0x1cc/0x220 secondary_startup_64_no_verify+0xe0/0xeb </TASK> ---------------- Code disassembly (best guess): 0: 89 fe mov %edi,%esi 2: 48 89 fd mov %rdi,%rbp 5: eb 0c jmp 0x13 7: 48 8d 6b 04 lea 0x4(%rbx),%rbp b: 49 89 de mov %rbx,%r14 e: 49 39 ec cmp %rbp,%r12 11: 72 4d jb 0x60 13: 4c 89 e0 mov %r12,%rax 16: 48 29 e8 sub %rbp,%rax 19: 48 89 c2 mov %rax,%rdx 1c: 48 c1 e8 3f shr $0x3f,%rax 20: 48 c1 fa 02 sar $0x2,%rdx 24: 48 01 d0 add %rdx,%rax 27: 48 d1 f8 sar %rax * 2a: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx <-- trapping instruction 2f: 48 89 d8 mov %rbx,%rax 32: 48 c1 e8 03 shr $0x3,%rax 36: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx 3b: 48 89 d8 mov %rbx,%rax 3e: 83 .byte 0x83 3f: e0 .byte 0xe0