BUG: unable to handle kernel paging request at 000000006ec08d61 IP: lock_release+0x195/0xda0 kernel/locking/lockdep.c:4021 PGD 5e28067 P4D 5e28067 PUD 5e2a067 PMD 0 Oops: 0002 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 16805 Comm: syz-executor7 Not tainted 4.15.0-rc2-next-20171204+ #58 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: 00000000e66ba565 task.stack: 000000006b88789c RIP: 0010:lock_release+0x195/0xda0 kernel/locking/lockdep.c:4021 RSP: 0018:ffff8801c29ae7d8 EFLAGS: 00010046 RAX: 0000000000000007 RBX: 1ffff10038535d00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801c2260c84 RBP: ffff8801c29ae948 R08: 0000000000000001 R09: 0000000000000004 R10: 0000000000000000 R11: ffffffff8748dd60 R12: ffff8801c2260400 R13: ffff8801c29ae920 R14: ffff8801c974fcd8 R15: ffff8801c2260400 FS: 00007f64555f6700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff8 CR3: 00000001c1ffa000 CR4: 00000000001426f0 Call Trace: __raw_spin_unlock include/linux/spinlock_api_smp.h:150 [inline] _raw_spin_unlock+0x1a/0x30 kernel/locking/spinlock.c:183 spin_unlock include/linux/spinlock.h:355 [inline] follow_pmd_mask mm/gup.c:297 [inline] follow_pud_mask mm/gup.c:339 [inline] follow_p4d_mask mm/gup.c:365 [inline] follow_page_mask+0x1508/0x17f0 mm/gup.c:418 __get_user_pages+0x423/0x15f0 mm/gup.c:696 __get_user_pages_locked mm/gup.c:870 [inline] get_user_pages_unlocked+0x2bd/0x4f0 mm/gup.c:990 hva_to_pfn_slow arch/x86/kvm/../../../virt/kvm/kvm_main.c:1379 [inline] hva_to_pfn arch/x86/kvm/../../../virt/kvm/kvm_main.c:1484 [inline] __gfn_to_pfn_memslot+0x386/0xf80 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1540 gfn_to_pfn_memslot arch/x86/kvm/../../../virt/kvm/kvm_main.c:1555 [inline] gfn_to_pfn+0x3f5/0x650 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1579 reexecute_instruction.part.167+0xa7/0x260 arch/x86/kvm/x86.c:5488 reexecute_instruction arch/x86/kvm/x86.c:5739 [inline] x86_emulate_instruction+0x15bc/0x1ad0 arch/x86/kvm/x86.c:5739 kvm_mmu_page_fault+0x1d3/0x2f0 arch/x86/kvm/mmu.c:4953 handle_ept_misconfig+0xf7/0x520 arch/x86/kvm/vmx.c:6563 vmx_handle_exit+0x25d/0x1ce0 arch/x86/kvm/vmx.c:8893 vcpu_enter_guest arch/x86/kvm/x86.c:7084 [inline] vcpu_run arch/x86/kvm/x86.c:7146 [inline] kvm_arch_vcpu_ioctl_run+0x1cb4/0x5c60 arch/x86/kvm/x86.c:7314 kvm_vcpu_ioctl+0x64c/0x1010 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2555 vfs_ioctl fs/ioctl.c:46 [inline] do_vfs_ioctl+0x1b1/0x1530 fs/ioctl.c:686 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x4529d9 RSP: 002b:00007f64555f5c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004529d9 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000016 RBP: 0000000020521800 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000009120 R13: 000000002aaaaaab R14: 00007f64555f66d4 R15: 0000000000000002 Code: 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 c4 08 00 00 41 c7 87 84 08 00 00 01 00 00 00 <cc> 1f 44 00 00 65 8b 05 4f d5 aa 7e 89 c0 48 0f a3 05 95 6b 08 RIP: lock_release+0x195/0xda0 kernel/locking/lockdep.c:4021 RSP: ffff8801c29ae7d8 CR2: fffffffffffffff8 ---[ end trace b72213297e6e2bc9 ]---