BUG: unable to handle page fault for address: ffffed1232917ab3 #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: 9680 Comm: syz-executor213 Not tainted 5.2.0-rc5+ #31 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:coalesced_mmio_write+0x28a/0x4d0 arch/x86/kvm/../../../virt/kvm/coalesced_mmio.c:83 Code: 38 d0 7c 08 84 d2 0f 85 55 02 00 00 41 8b 47 04 48 8d 14 40 49 8d 7c d7 08 48 ba 00 00 00 00 00 fc ff df 48 89 fe 48 c1 ee 03 <80> 3c 16 00 0f 85 1b 02 00 00 48 8d 14 40 48 be 00 00 00 00 00 fc RSP: 0018:ffff88809f71f140 EFLAGS: 00010a02 RAX: 00000000b52b40e6 RBX: 0000000000000f7c RCX: ffffffff81080faa RDX: dffffc0000000000 RSI: 1ffff11232917ab3 RDI: ffff8891948bd598 RBP: ffff88809f71f190 R08: ffff8880936f85c0 R09: 0000000000000000 R10: ffffed1013ee3e15 R11: 0000000000000003 R12: 0000000000000004 R13: ffff888085c08690 R14: 0000000000000004 R15: ffff8880987dc000 FS: 00007fa6057aa700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1232917ab3 CR3: 0000000092d4c000 CR4: 00000000001426f0 Call Trace: kvm_iodevice_write include/kvm/iodev.h:54 [inline] __kvm_io_bus_write+0x29b/0x380 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3701 kvm_io_bus_write+0x15c/0x290 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3726 vcpu_mmio_write arch/x86/kvm/x86.c:5029 [inline] write_mmio+0x175/0x4e0 arch/x86/kvm/x86.c:5391 emulator_read_write_onepage+0x429/0xd50 arch/x86/kvm/x86.c:5460 emulator_read_write+0x1b7/0x5a0 arch/x86/kvm/x86.c:5509 emulator_write_emulated+0x3c/0x50 arch/x86/kvm/x86.c:5546 segmented_write+0xf0/0x150 arch/x86/kvm/emulate.c:1446 push+0x1e8/0x310 arch/x86/kvm/emulate.c:1842 em_push+0x7d/0x90 arch/x86/kvm/emulate.c:1849 x86_emulate_insn+0x653/0x48f0 arch/x86/kvm/emulate.c:5614 x86_emulate_instruction+0xca3/0x1c50 arch/x86/kvm/x86.c:6509 kvm_mmu_page_fault+0x370/0x1870 arch/x86/kvm/mmu.c:5430 handle_ept_violation+0x1c8/0x500 arch/x86/kvm/vmx/vmx.c:5099 vmx_handle_exit+0x280/0x1540 arch/x86/kvm/vmx/vmx.c:5861 vcpu_enter_guest+0x1174/0x5f40 arch/x86/kvm/x86.c:8035 vcpu_run arch/x86/kvm/x86.c:8099 [inline] kvm_arch_vcpu_ioctl_run+0x423/0x1740 arch/x86/kvm/x86.c:8307 kvm_vcpu_ioctl+0x4dc/0xf90 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2755 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0xfd/0x680 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:00007fa6057a9ce8 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: 00007ffd1b29d55f R14: 00007fa6057aa9c0 R15: 0000000000000000 Modules linked in: CR2: ffffed1232917ab3 ---[ end trace f5c37e3ba34286fb ]--- RIP: 0010:coalesced_mmio_write+0x28a/0x4d0 arch/x86/kvm/../../../virt/kvm/coalesced_mmio.c:83 Code: 38 d0 7c 08 84 d2 0f 85 55 02 00 00 41 8b 47 04 48 8d 14 40 49 8d 7c d7 08 48 ba 00 00 00 00 00 fc ff df 48 89 fe 48 c1 ee 03 <80> 3c 16 00 0f 85 1b 02 00 00 48 8d 14 40 48 be 00 00 00 00 00 fc RSP: 0018:ffff88809f71f140 EFLAGS: 00010a02 RAX: 00000000b52b40e6 RBX: 0000000000000f7c RCX: ffffffff81080faa RDX: dffffc0000000000 RSI: 1ffff11232917ab3 RDI: ffff8891948bd598 RBP: ffff88809f71f190 R08: ffff8880936f85c0 R09: 0000000000000000 R10: ffffed1013ee3e15 R11: 0000000000000003 R12: 0000000000000004 R13: ffff888085c08690 R14: 0000000000000004 R15: ffff8880987dc000 FS: 00007fa6057aa700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1232917ab3 CR3: 0000000092d4c000 CR4: 00000000001426f0