watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.2:28420] Modules linked in: irq event stamp: 12001715 hardirqs last enabled at (12001714): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 hardirqs last disabled at (12001715): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1100 softirqs last enabled at (11705130): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last enabled at (11705130): [] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 softirqs last disabled at (11705133): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last disabled at (11705133): [] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 CPU: 0 PID: 28420 Comm: syz-executor.2 Not tainted 5.13.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:325 [inline] RIP: 0010:rcu_is_watching+0x20/0xc0 kernel/rcu/tree.c:1168 Code: bb 66 0f 1f 84 00 00 00 00 00 55 53 65 ff 05 97 ec a1 7e e8 02 4e b6 07 48 c7 c3 80 61 03 00 83 f8 07 89 c5 0f 87 81 00 00 00 <48> 8d 3c ed e0 b6 0d 8b 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 RSP: 0018:ffffc90000007858 EFLAGS: 00000297 RAX: 0000000000000000 RBX: 0000000000036180 RCX: 0000000000000100 RDX: ffff88802b0b4140 RSI: 0000000000000304 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff885a46cd R11: 0000000000000000 R12: 0000000000000001 R13: ffff888061d10c10 R14: 0000000000000080 R15: 0000000000000000 FS: 00007fbd91bee700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000440650 CR3: 0000000016e1b000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_read_lock_held_common kernel/rcu/update.c:108 [inline] rcu_read_lock_sched_held+0x1c/0x70 kernel/rcu/update.c:123 trace_cfg80211_return_bool net/wireless/trace.h:2589 [inline] trace_cfg80211_return_bool net/wireless/trace.h:2589 [inline] cfg80211_rx_mgmt_khz+0x90b/0xb60 net/wireless/mlme.c:780 ieee80211_rx_h_userspace_mgmt net/mac80211/rx.c:3443 [inline] ieee80211_rx_handlers+0x6d67/0xae60 net/mac80211/rx.c:3790 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3824 [inline] ieee80211_prepare_and_rx_handle+0x22ad/0x5070 net/mac80211/rx.c:4538 __ieee80211_rx_handle_packet net/mac80211/rx.c:4636 [inline] ieee80211_rx_list+0x930/0x2680 net/mac80211/rx.c:4820 ieee80211_rx_napi+0xf7/0x3d0 net/mac80211/rx.c:4843 ieee80211_rx include/net/mac80211.h:4528 [inline] ieee80211_tasklet_handler+0xd4/0x130 net/mac80211/main.c:235 tasklet_action_common.constprop.0+0x201/0x2e0 kernel/softirq.c:784 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559 invoke_softirq kernel/softirq.c:433 [inline] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 RIP: 0010:preempt_schedule_irq+0x49/0x90 kernel/sched/core.c:5535 Code: 55 53 65 48 8b 1c 25 00 f0 01 00 48 89 dd 48 c1 ed 03 48 01 c5 bf 01 00 00 00 e8 62 57 36 f8 e8 ed 44 62 f8 fb bf 01 00 00 00 92 ce ff ff 9c 58 fa f6 c4 02 75 27 bf 01 00 00 00 e8 b0 45 36 RSP: 0018:ffffc90005a67718 EFLAGS: 00000202 RAX: 0000000000043bb5 RBX: ffff88802b0b4140 RCX: 1ffffffff2056b2a RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffed1005616828 R08: 0000000000000001 R09: ffffffff9022ba0f R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 irqentry_exit+0x31/0x80 kernel/entry/common.c:426 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 RIP: 0010:qlist_free_all+0x67/0x110 mm/kasan/quarantine.c:160 Code: 9a b8 81 48 c1 e8 03 42 c6 04 28 fb e8 42 7a ff ff 48 85 db 75 52 9c 58 f6 c4 02 0f 85 a4 00 00 00 48 85 db 74 01 fb 48 85 ed <74> 73 48 89 ee 4d 85 e4 4c 89 e7 74 38 48 63 87 80 00 00 00 48 8b RSP: 0018:ffffc90005a677e8 EFLAGS: 00000286 RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff2056b2a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88802b9ba500 R08: 0000000000000001 R09: ffffffff9022ba0f R10: 0000000000000001 R11: 000000000000003f R12: 0000000000000000 R13: dffffc0000000000 R14: ffffc90005a67830 R15: ffffea0000000000 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272 __kasan_slab_alloc+0x8b/0xa0 mm/kasan/common.c:438 kasan_slab_alloc include/linux/kasan.h:236 [inline] slab_post_alloc_hook mm/slab.h:524 [inline] slab_alloc_node mm/slab.c:3261 [inline] kmem_cache_alloc_node_trace+0x34e/0x5b0 mm/slab.c:3617 __do_kmalloc_node mm/slab.c:3639 [inline] __kmalloc_node+0x38/0x60 mm/slab.c:3647 kmalloc_node include/linux/slab.h:579 [inline] kvmalloc_node+0xb4/0xf0 mm/util.c:587 kvmalloc include/linux/mm.h:804 [inline] kvzalloc include/linux/mm.h:812 [inline] kvm_dup_memslots arch/x86/kvm/../../../virt/kvm/kvm_main.c:1328 [inline] kvm_set_memslot+0xb5/0x14a0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1345 __kvm_set_memory_region+0x75e/0x1050 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1533 kvm_set_memory_region arch/x86/kvm/../../../virt/kvm/kvm_main.c:1554 [inline] kvm_vm_ioctl_set_memory_region arch/x86/kvm/../../../virt/kvm/kvm_main.c:1566 [inline] kvm_vm_ioctl+0xbc3/0x2800 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4000 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x466397 Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 a4 48 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 00 00 00 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:00007fbd91bec5f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000020fe7000 RCX: 0000000000466397 RDX: 00007fbd91becd30 RSI: 000000004020ae46 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000fec00000 R13: 00007fbd91becd30 R14: 000000000000000a R15: 0000000020ff0000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 28463 Comm: syz-executor.0 Not tainted 5.13.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:native_apic_mem_write+0x8/0x10 arch/x86/include/asm/apic.h:110 Code: c7 40 97 41 8f e8 48 61 86 00 eb b0 66 0f 1f 44 00 00 be 01 00 00 00 e9 96 f8 2b 00 cc cc cc cc cc cc 89 ff 89 b7 00 c0 5f ff 0f 1f 80 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 89 fb 48 RSP: 0018:ffffc90000dd8430 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: ffffffff8b0db8c0 RCX: 0000000000000020 RDX: 1ffffffff161b71a RSI: 00000000000000e3 RDI: 0000000000000380 RBP: ffff8880b9d1f2c0 R08: 000000000000003f R09: 0000000000000000 R10: ffffffff81670547 R11: 0000000000000000 R12: 00000000000000e3 R13: 0000000000000020 R14: ffff8880b9d26380 R15: 7fffffffffffffff FS: 00007f4801b5d700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000511f30 CR3: 00000000316f5000 CR4: 00000000001526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apic_write arch/x86/include/asm/apic.h:393 [inline] lapic_next_event+0x4d/0x80 arch/x86/kernel/apic/apic.c:472 clockevents_program_event+0x254/0x370 kernel/time/clockevents.c:334 tick_program_event+0xac/0x140 kernel/time/tick-oneshot.c:44 hrtimer_interrupt+0x414/0xa00 kernel/time/hrtimer.c:1676 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline] __sysvec_apic_timer_interrupt+0x146/0x540 arch/x86/kernel/apic/apic.c:1106 sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 RIP: 0010:unwind_next_frame+0x829/0x1ce0 arch/x86/kernel/unwind_orc.c:466 Code: 83 e0 07 40 38 c6 40 0f 9e c7 40 84 f6 0f 95 c0 40 84 c7 0f 85 bc 0f 00 00 49 0f bf 30 48 01 d6 48 89 74 24 60 e9 d8 fd ff ff <48> b8 00 00 00 00 00 fc ff df 48 8b 54 24 08 48 c1 ea 03 80 3c 02 RSP: 0018:ffffc90000dd8640 EFLAGS: 00000297 RAX: 0000000000000005 RBX: 1ffff920001bb0d0 RCX: ffffffff8e42e31b RDX: 0000000000000005 RSI: 0000000000000001 RDI: 0000000000000001 RBP: 0000000000000002 R08: ffffffff8e42e316 R09: ffffffff8e42e30a R10: fffff520001bb0ee R11: 0000000000084087 R12: ffffc90000dd8760 R13: ffffc90000dd874d R14: ffffc90000dd8718 R15: ffffffff8e42e31a arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:428 [inline] ____kasan_kmalloc mm/kasan/common.c:507 [inline] ____kasan_kmalloc mm/kasan/common.c:466 [inline] __kasan_kmalloc+0x98/0xc0 mm/kasan/common.c:516 kasan_kmalloc include/linux/kasan.h:246 [inline] kmem_cache_alloc_node_trace+0x222/0x5b0 mm/slab.c:3619 __do_kmalloc_node mm/slab.c:3639 [inline] __kmalloc_node_track_caller+0x38/0x60 mm/slab.c:3654 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0xde/0x340 net/core/skbuff.c:425 __netdev_alloc_skb+0x70/0x400 net/core/skbuff.c:492 netdev_alloc_skb include/linux/skbuff.h:2867 [inline] dev_alloc_skb include/linux/skbuff.h:2880 [inline] __ieee80211_beacon_get+0xebe/0x1aa0 net/mac80211/tx.c:4836 ieee80211_beacon_get_tim+0x88/0x910 net/mac80211/tx.c:4950 ieee80211_beacon_get include/net/mac80211.h:4938 [inline] mac80211_hwsim_beacon_tx+0x111/0x910 drivers/net/wireless/mac80211_hwsim.c:1799 __iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:829 mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1852 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x609/0xe40 kernel/time/hrtimer.c:1601 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559 invoke_softirq kernel/softirq.c:433 [inline] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:199 Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 8e ad 40 f8 48 89 ef e8 26 26 41 f8 e8 a1 1b 61 f8 fb bf 01 00 00 00 76 1c 35 f8 65 8b 05 2f ed e8 76 85 c0 74 02 5d c3 e8 eb 42 e7 RSP: 0018:ffffc90005adf5e8 EFLAGS: 00000202 RAX: 00000000006b203d RBX: 0000000000000001 RCX: 1ffffffff2046762 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 RBP: ffff8880b9d35340 R08: 0000000000000001 R09: ffffffff9022b8b7 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880b9d35340 R13: ffff88801255c100 R14: ffff88806994b1c0 R15: ffff888022920380 finish_lock_switch kernel/sched/core.c:4093 [inline] finish_task_switch.isra.0+0x15d/0x810 kernel/sched/core.c:4210 context_switch kernel/sched/core.c:4342 [inline] __schedule+0x91e/0x23e0 kernel/sched/core.c:5147 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:5535 irqentry_exit+0x31/0x80 kernel/entry/common.c:426 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 RIP: 0010:lock_acquire+0x1ef/0x740 kernel/locking/lockdep.c:5480 Code: 41 a8 7e 83 f8 01 0f 85 ee 03 00 00 9c 58 f6 c4 02 0f 85 d9 03 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffffc90005adf7f0 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff92000b5bf00 RCX: ffffffff815968b7 RDX: 1ffff110045241ae RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff9022b8b7 R10: fffffbfff2045716 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff8c094160 R14: 0000000000000000 R15: 0000000000000000 __fs_reclaim_acquire mm/page_alloc.c:4377 [inline] fs_reclaim_acquire+0x117/0x160 mm/page_alloc.c:4391 might_alloc include/linux/sched/mm.h:198 [inline] slab_pre_alloc_hook mm/slab.h:497 [inline] slab_alloc mm/slab.c:3306 [inline] kmem_cache_alloc+0x3a/0x530 mm/slab.c:3507 __d_alloc+0x2a/0x950 fs/dcache.c:1744 d_alloc+0x4a/0x230 fs/dcache.c:1823 d_alloc_parallel+0xe9/0x1a00 fs/dcache.c:2575 __lookup_slow+0x193/0x480 fs/namei.c:1614 lookup_one_len+0x163/0x190 fs/namei.c:2650 start_creating.part.0+0x13a/0x290 fs/debugfs/inode.c:349 start_creating fs/debugfs/inode.c:322 [inline] __debugfs_create_file+0xa9/0x4e0 fs/debugfs/inode.c:394 kvm_create_vm_debugfs arch/x86/kvm/../../../virt/kvm/kvm_main.c:871 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:4244 [inline] kvm_dev_ioctl+0x78d/0x13a0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4271 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 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:00007f4801b5d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000004 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffd2af53e6f R14: 00007f4801b5d300 R15: 0000000000022000