watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz.1.15267:15792]
Modules linked in:
irq event stamp: 86482
hardirqs last  enabled at (86481): [<ffffffff8b787bbc>] irqentry_exit+0x59c/0x620
hardirqs last disabled at (86482): [<ffffffff8b7865ce>] sysvec_apic_timer_interrupt+0xe/0xc0
softirqs last  enabled at (86476): [<ffffffff818619af>] __irq_exit_rcu+0x5f/0x150
softirqs last disabled at (86461): [<ffffffff818619af>] __irq_exit_rcu+0x5f/0x150
CPU: 0 UID: 0 PID: 15792 Comm: syz.1.15267 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:smp_call_function_single+0x399/0x580
Code: 33 44 89 f6 83 e6 01 31 ff e8 43 ca 0b 00 41 83 e6 01 75 11 e8 f8 c5 0b 00 4d 89 fe eb 3f e8 ee c5 0b 00 eb 3c 4d 89 fe f3 90 <43> 0f b6 04 2c 84 c0 75 0f f7 03 01 00 00 00 74 1d e8 d1 c5 0b 00
RSP: 0018:ffffc90009087b00 EFLAGS: 00000293
RAX: ffffffff81b6c35f RBX: ffffc90009087b48 RCX: ffff8881126ba4c0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90009087bd0 R08: ffffc90009087a47 R09: 1ffff92001210f48
R10: dffffc0000000000 R11: fffff52001210f49 R12: 1ffff92001210f69
R13: dffffc0000000000 R14: 1ffff92001210f64 R15: 1ffff92001210f64
FS:  000055556d621500(0000) GS:ffff88818e329000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000bff000 CR3: 000000010c6f3000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000eb4
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rcu_barrier+0x360/0x580
 kvm_mmu_uninit_vm+0x53/0x90
 kvm_arch_destroy_vm+0x239/0x280
 kvm_put_kvm+0x6ca/0xa80
 kvm_vm_release+0x43/0x50
 __fput+0x44f/0xa70
 task_work_run+0x1d9/0x270
 exit_to_user_mode_loop+0xed/0x480
 do_syscall_64+0x2b7/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbfdd39acb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdd181b528 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007ffdd181b610 RCX: 00007fbfdd39acb9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 000000000012b81e R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b30120000 R11: 0000000000000246 R12: 00007ffdd181b650
R13: 00007fbfdd615fac R14: 000000000012b8f7 R15: 00007fbfdd615fa0
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 8700 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:mm_get_cid+0xb1/0x130
Code: 41 5f 5d c3 cc cc cc cc cc 49 c7 c5 c8 d4 d7 8d 49 c1 ed 03 bd 00 00 00 80 eb 07 44 89 f0 f7 d8 71 d4 f3 90 43 0f b6 44 25 00 <84> c0 75 41 44 8b 3d 2c 6d 44 0c 48 89 df 4c 89 fe e8 89 af 03 03
RSP: 0018:ffffc90003fb7868 EFLAGS: 00000887
RAX: 0000000000000000 RBX: ffff88817571f9d0 RCX: dffffc0000000000
RDX: 0000000000000002 RSI: 0000000000000002 RDI: ffff88817571f9d0
RBP: 0000000080000000 R08: ffff88817571f853 R09: 1ffff1102eae3f0a
R10: dffffc0000000000 R11: ffffed102eae3f0b R12: dffffc0000000000
R13: 1ffffffff1bafa99 R14: 0000000080000000 R15: 0000000000000002
FS:  00007f775c09c280(0000) GS:ffff8882a9929000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000c42000 CR3: 0000000169bfe000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000004
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __schedule+0x21b0/0x4fb0
 schedule+0x164/0x360
 schedule_hrtimeout_range_clock+0x1e7/0x320
 do_epoll_wait+0xd36/0xf60
 __x64_sys_epoll_wait+0x1d7/0x230
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f775c17c457
Code: Unable to access opcode bytes at 0x7f775c17c42d.
RSP: 002b:00007ffe87937e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f775c17c457
RDX: 0000000000000004 RSI: 00007ffe87937eb8 RDI: 0000000000000004
RBP: 0000564bc5064780 R08: 0000000000000007 R09: 6b75865c9f81fa44
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000564bc50d5ba0
R13: 00007ffe87937eb8 R14: 00000000ffffffff R15: 0000564bc5044910
 </TASK>
