watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.1:19975] Modules linked in: irq event stamp: 29130 hardirqs last enabled at (29129): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596 hardirqs last disabled at (29130): [] idtentry_enter_cond_rcu+0x2e/0x50 arch/x86/entry/common.c:607 softirqs last enabled at (17428): [] asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 softirqs last disabled at (17367): [] asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 CPU: 0 PID: 19975 Comm: syz-executor.1 Not tainted 5.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline] RIP: 0010:smp_call_function_single+0x302/0x450 kernel/smp.c:382 Code: 2f 44 89 ee 83 e6 01 31 ff e8 6a 04 0b 00 41 83 e5 01 75 14 e8 4f 00 0b 00 eb 45 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f3 90 <42> 0f b6 04 23 84 c0 75 0d 41 f6 07 01 74 22 e8 2a 00 0b 00 eb e8 RSP: 0018:ffffc90005d9f880 EFLAGS: 00000293 RAX: ffffffff81697b26 RBX: 1ffff92000bb3f15 RCX: ffff8880a720e3c0 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90005d9f908 R08: ffffffff81697af6 R09: ffffed1015d26d11 R10: ffffed1015d26d11 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffffc90005d9f8a8 FS: 00007f8d2523f700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc6ef96630 CR3: 0000000084deb000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: smp_call_function_many kernel/smp.c:577 [inline] smp_call_function kernel/smp.c:599 [inline] on_each_cpu+0x4d/0x1f0 kernel/smp.c:699 text_poke_sync arch/x86/kernel/alternative.c:996 [inline] text_poke_bp_batch+0x1df/0x640 arch/x86/kernel/alternative.c:1174 text_poke_flush arch/x86/kernel/alternative.c:1296 [inline] text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1303 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:126 __static_key_slow_dec_cpuslocked kernel/jump_label.c:248 [inline] __static_key_slow_dec+0x109/0x140 kernel/jump_label.c:255 kvm_vcpu_destroy+0x1d/0xb0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:365 kvm_free_vcpus arch/x86/kvm/x86.c:9910 [inline] kvm_arch_destroy_vm+0x2bc/0x520 arch/x86/kvm/x86.c:10004 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:822 [inline] kvm_put_kvm+0x68b/0xd60 arch/x86/kvm/../../../virt/kvm/kvm_main.c:843 kvm_vm_release+0x42/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:866 __fput+0x2f0/0x750 fs/file_table.c:281 task_work_run+0x137/0x1c0 kernel/task_work.c:123 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x601/0x1f80 kernel/exit.c:805 do_group_exit+0x161/0x2d0 kernel/exit.c:903 get_signal+0x13cf/0x1d60 kernel/signal.c:2739 do_signal+0x33/0x610 arch/x86/kernel/signal.c:810 exit_to_usermode_loop arch/x86/entry/common.c:212 [inline] __prepare_exit_to_usermode+0xd7/0x1e0 arch/x86/entry/common.c:246 do_syscall_64+0x7f/0xe0 arch/x86/entry/common.c:368 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45cb29 Code: Bad RIP value. RSP: 002b:00007f8d2523ecf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000078bfa8 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000078bfa8 RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bfac R13: 00007fff164b696f R14: 00007f8d2523f9c0 R15: 000000000078bfac Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 20467 Comm: syz-executor.0 Not tainted 5.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:check_memory_region+0x224/0x2f0 mm/kasan/generic.c:192 Code: 89 cf 49 8d 5e 07 4d 85 f6 49 0f 49 de 48 83 e3 f8 49 29 de 74 11 45 0f b6 1f 45 84 db 75 64 49 ff c7 49 ff ce 75 ef 5b 41 5c <41> 5d 41 5e 41 5f c3 45 84 db 75 50 45 8a 59 01 45 84 db 0f 85 8a RSP: 0018:ffffc90000da8b00 EFLAGS: 00000056 RAX: 0000000000000001 RBX: 0000000000000054 RCX: ffffffff8159a1de RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8b19a4f8 RBP: ffffc90000da8c88 R08: dffffc0000000000 R09: fffffbfff16334a0 R10: fffffbfff16334a0 R11: 0000000000000000 R12: 1ffff110073991c8 R13: dffffc0000000001 R14: 0000000000000001 R15: ffff888039cc8e70 FS: 00007f529a229700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000506f30 CR3: 0000000088627000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: instrument_atomic_read include/linux/instrumented.h:56 [inline] test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline] hlock_class kernel/locking/lockdep.c:179 [inline] __lock_acquire+0xe5e/0x2c30 kernel/locking/lockdep.c:4376 lock_acquire+0x160/0x720 kernel/locking/lockdep.c:4959 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x9e/0xc0 kernel/locking/spinlock.c:159 debug_object_deactivate+0x61/0x3f0 lib/debugobjects.c:710 debug_hrtimer_deactivate kernel/time/hrtimer.c:421 [inline] debug_deactivate kernel/time/hrtimer.c:482 [inline] __run_hrtimer kernel/time/hrtimer.c:1488 [inline] __hrtimer_run_queues+0x289/0x930 kernel/time/hrtimer.c:1584 hrtimer_interrupt+0x373/0xd60 kernel/time/hrtimer.c:1646 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline] __sysvec_apic_timer_interrupt+0xf0/0x260 arch/x86/kernel/apic/apic.c:1097 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] sysvec_apic_timer_interrupt+0xb9/0x130 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:765 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa5/0xd0 kernel/locking/spinlock.c:191 Code: b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 0c 48 c7 c7 f0 c7 2b 89 e8 2a 7c 94 f9 48 83 3d d2 c9 0c 01 00 74 2c 4c 89 f7 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 0c 8b 31 f9 65 8b 05 d1 ff e2 77 RSP: 0018:ffffc90012707e50 EFLAGS: 00000282 RAX: 1ffffffff12578fe RBX: ffffffff892ee3c8 RCX: dffffc0000000000 RDX: ffffc90001b19000 RSI: 0000000000000063 RDI: 0000000000000282 RBP: ffffffff81669656 R08: ffffffff817a1c60 R09: fffffbfff125dc7a R10: fffffbfff125dc7a R11: 0000000000000000 R12: 0000000018384e31 R13: 0000000000000282 R14: 0000000000000282 R15: dffffc0000000000 do_settimeofday64+0x419/0x520 kernel/time/timekeeping.c:1254 __do_sys_clock_settime kernel/time/posix-timers.c:1079 [inline] __se_sys_clock_settime kernel/time/posix-timers.c:1067 [inline] __x64_sys_clock_settime+0x196/0x1c0 kernel/time/posix-timers.c:1067 do_syscall_64+0x73/0xe0 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45cb29 Code: Bad RIP value. RSP: 002b:00007f529a228c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 RAX: ffffffffffffffda RBX: 00000000004db520 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000000000000 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000007b R14: 00000000004c34ac R15: 00007f529a2296d4