BUG: unable to handle page fault for address: ffffed12308b36b3 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 21fff0067 P4D 21fff0067 PUD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8157 Comm: syz-executor065 Not tainted 5.2.0-rc5+ #5 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:coalesced_mmio_write+0x23e/0x440 arch/x86/kvm/../../../virt/kvm/coalesced_mmio.c:83 Code: fc ff df 48 89 45 a8 8a 04 18 84 c0 0f 85 82 01 00 00 4c 89 7d a0 41 8b 46 04 4c 8d 24 40 4f 8d 74 e6 08 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 74 f7 a6 00 4c 8b 7d c8 49 83 c7 f0 RSP: 0018:ffff888091786d00 EFLAGS: 00010a02 RAX: 1ffff112308b36b3 RBX: dffffc0000000000 RCX: ffff888085e34240 RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000000 RBP: ffff888091786d70 R08: ffffffff8107e400 R09: ffffed10122f0d8d R10: ffffed10122f0d8c R11: 1ffff110122f0d8c R12: 000000021f81c2b2 R13: 0000000000000000 R14: ffff88918459b598 R15: ffff8880884ba004 FS: 00007fca1b7dc700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed12308b36b3 CR3: 000000008d927000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_iodevice_write include/kvm/iodev.h:54 [inline] __kvm_io_bus_write arch/x86/kvm/../../../virt/kvm/kvm_main.c:3701 [inline] kvm_io_bus_write+0x56a/0x6f0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3726 vcpu_mmio_write arch/x86/kvm/x86.c:5029 [inline] write_mmio+0x19f/0x1f0 arch/x86/kvm/x86.c:5391 emulator_read_write_onepage+0x68a/0x980 arch/x86/kvm/x86.c:5460 emulator_read_write+0x1d4/0x550 arch/x86/kvm/x86.c:5509 emulator_write_emulated+0x3c/0x50 arch/x86/kvm/x86.c:5546 writeback+0x607/0x900 arch/x86/kvm/emulate.c:1446 x86_emulate_insn+0x3046/0x6fe0 arch/x86/kvm/emulate.c:5695 x86_emulate_instruction+0x8a8/0x4cc0 arch/x86/kvm/x86.c:6509 kvm_mmu_page_fault+0x3be/0xf70 arch/x86/kvm/mmu.c:5430 handle_ept_violation+0x1a1/0x1f0 arch/x86/kvm/vmx/vmx.c:5099 vmx_handle_exit+0x3ba/0xd00 arch/x86/kvm/vmx/vmx.c:5861 vcpu_enter_guest+0x3e5e/0x5380 arch/x86/kvm/x86.c:8035 vcpu_run+0x393/0xcf0 arch/x86/kvm/x86.c:8099 kvm_arch_vcpu_ioctl_run+0xcf2/0xff0 arch/x86/kvm/x86.c:8307 kvm_vcpu_ioctl+0x792/0xba0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2755 do_vfs_ioctl+0x7d4/0x1890 fs/ioctl.c:46 ksys_ioctl fs/ioctl.c:713 [inline] __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0xe3/0x120 fs/ioctl.c:718 do_syscall_64+0xfe/0x140 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x449e09 Code: e8 ec e7 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 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 0f 83 1b ff fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fca1b7dbce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000006dfc48 RCX: 0000000000449e09 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 00000000006dfc40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dfc4c R13: 00007ffd1396c11f R14: 00007fca1b7dc9c0 R15: 0000000000000000 Modules linked in: CR2: ffffed12308b36b3 ---[ end trace c4933e7f38a8fb04 ]--- RIP: 0010:coalesced_mmio_write+0x23e/0x440 arch/x86/kvm/../../../virt/kvm/coalesced_mmio.c:83 Code: fc ff df 48 89 45 a8 8a 04 18 84 c0 0f 85 82 01 00 00 4c 89 7d a0 41 8b 46 04 4c 8d 24 40 4f 8d 74 e6 08 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 74 f7 a6 00 4c 8b 7d c8 49 83 c7 f0 RSP: 0018:ffff888091786d00 EFLAGS: 00010a02 RAX: 1ffff112308b36b3 RBX: dffffc0000000000 RCX: ffff888085e34240 RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000000 RBP: ffff888091786d70 R08: ffffffff8107e400 R09: ffffed10122f0d8d R10: ffffed10122f0d8c R11: 1ffff110122f0d8c R12: 000000021f81c2b2 R13: 0000000000000000 R14: ffff88918459b598 R15: ffff8880884ba004 FS: 00007fca1b7dc700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed12308b36b3 CR3: 000000008d927000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400