------------[ cut here ]------------ kernel BUG at arch/x86/kvm/x86.c:357! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8138 Comm: syz-executor3 Not tainted 5.0.0-rc3+ #42 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kvm_spurious_fault+0x9/0x10 arch/x86/kvm/x86.c:357 Code: e8 3c 24 76 00 41 bd 03 00 00 00 5b 44 89 e8 41 5c 41 5d 5d c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 e8 17 24 76 00 <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 d6 41 55 41 54 RSP: 0018:ffff8880ae707c78 EFLAGS: 00010006 RAX: ffff888085716680 RBX: ffff8880980db810 RCX: ffffffff8139cb1a RDX: 0000000000010000 RSI: ffffffff810bdcb9 RDI: 0000000000000007 RBP: ffff8880ae707c78 R08: ffff888085716680 R09: ffffed1015ce5ba9 R10: ffffed1015ce5ba8 R11: ffff8880ae72dd47 R12: 1ffff11015ce0f94 R13: ffff8880ae707cc0 R14: ffff8880ae707d20 R15: ffff888058be5000 FS: 0000000001166940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8880ae707cc0 CR3: 0000000096def000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vmcs_clear arch/x86/kvm/vmx/ops.h:185 [inline] loaded_vmcs_init+0xcb/0x320 arch/x86/kvm/vmx/vmx.c:565 __loaded_vmcs_clear+0x2c1/0x520 arch/x86/kvm/vmx/vmx.c:632 flush_smp_call_function_queue+0x1bb/0x640 kernel/smp.c:243 generic_smp_call_function_single_interrupt+0x13/0x2b kernel/smp.c:192 smp_call_function_single_interrupt+0x117/0x640 arch/x86/kernel/smp.c:296 call_function_single_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:check_memory_region+0x14/0x190 mm/kasan/generic.c:190 Code: 89 e5 e8 2f 1d 2c 06 5d c3 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 48 85 f6 0f 84 21 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 55 <0f> b6 d2 48 39 c7 48 89 e5 41 55 41 54 53 0f 86 f6 00 00 00 4c 8d RSP: 0018:ffff88808571f6f0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff04 RAX: ffff7fffffffffff RBX: ffff88804975b360 RCX: ffffffff81d87a8a RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88804975b360 RBP: ffff88808571f700 R08: ffff888085716680 R09: ffffed1010ae3ed3 R10: ffffed1010ae3ed2 R11: 0000000000000003 R12: ffff88804975b380 R13: dffffc0000000000 R14: ffff88804975b360 R15: ffff88804975b330 read_word_at_a_time+0x1a/0x20 include/linux/compiler.h:276 dentry_string_cmp fs/dcache.c:185 [inline] dentry_cmp fs/dcache.c:237 [inline] d_same_name fs/dcache.c:2076 [inline] __d_lookup+0x4bc/0x960 fs/dcache.c:2278 d_lookup+0x1f5/0x360 fs/dcache.c:2214 mountpoint_last fs/namei.c:2657 [inline] path_mountpoint+0x1db/0x21a0 fs/namei.c:2695 filename_mountpoint+0x258/0x490 fs/namei.c:2717 user_path_mountpoint_at+0x3a/0x50 fs/namei.c:2747 ksys_umount+0x198/0x1340 fs/namespace.c:1643 __do_sys_umount fs/namespace.c:1669 [inline] __se_sys_umount fs/namespace.c:1667 [inline] __x64_sys_umount+0x54/0x80 fs/namespace.c:1667 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45aae7 Code: 44 00 00 b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 0d 8d fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 ed 8c fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffde1de7098 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: ffffffffffffffda RBX: 000000000015dfba RCX: 000000000045aae7 RDX: 000000000000000c RSI: 0000000000000002 RDI: 00007ffde1de81d0 RBP: 0000000000001428 R08: 0000000000000001 R09: 0000000001166940 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffde1de81d0 R13: 000000000015df0c R14: 0000000000000000 R15: 0000000000000003 Modules linked in: ---[ end trace 57c9468ddacee4e2 ]--- RIP: 0010:kvm_spurious_fault+0x9/0x10 arch/x86/kvm/x86.c:357 Code: e8 3c 24 76 00 41 bd 03 00 00 00 5b 44 89 e8 41 5c 41 5d 5d c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 e8 17 24 76 00 <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 d6 41 55 41 54 RSP: 0018:ffff8880ae707c78 EFLAGS: 00010006 RAX: ffff888085716680 RBX: ffff8880980db810 RCX: ffffffff8139cb1a RDX: 0000000000010000 RSI: ffffffff810bdcb9 RDI: 0000000000000007 RBP: ffff8880ae707c78 R08: ffff888085716680 R09: ffffed1015ce5ba9 R10: ffffed1015ce5ba8 R11: ffff8880ae72dd47 R12: 1ffff11015ce0f94 R13: ffff8880ae707cc0 R14: ffff8880ae707d20 R15: ffff888058be5000 FS: 0000000001166940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8880ae707cc0 CR3: 0000000096def000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400