------------[ cut here ]------------ !allow_smaller_maxphyaddr WARNING: arch/x86/kvm/vmx/vmx.c:5393 at handle_exception_nmi+0x1893/0x1ae0 arch/x86/kvm/vmx/vmx.c:5393, CPU#0: syz.5.7976/27630 Modules linked in: CPU: 0 UID: 0 PID: 27630 Comm: syz.5.7976 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:handle_exception_nmi+0x1893/0x1ae0 arch/x86/kvm/vmx/vmx.c:5393 Code: 01 00 00 00 89 c5 89 c6 e8 3a 5d 68 00 83 fd 01 0f 84 9e fc ff ff e8 7c 62 68 00 90 0f 0b 90 e9 90 fc ff ff e8 6e 62 68 00 90 <0f> 0b 90 e9 ca f1 ff ff 4c 89 f7 e8 1d b1 d2 00 e9 94 e7 ff ff e8 RSP: 0018:ffffc9000d3ef9e8 EFLAGS: 00010283 RAX: 0000000000008cb9 RBX: ffff88802a0ad280 RCX: ffffc90007059000 RDX: 0000000000080000 RSI: ffffffff819e98f2 RDI: ffff8880319b8000 RBP: 000000000f6632eb R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000080000b0e R14: ffff88802a0ad358 R15: ffff88803d15f000 FS: 00007ff06d27b6c0(0000) GS:ffff8880d65db000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffff99 CR3: 0000000032a9c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000036 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: __vmx_handle_exit arch/x86/kvm/vmx/vmx.c:6760 [inline] vmx_handle_exit+0x720/0x1de0 arch/x86/kvm/vmx/vmx.c:6770 vcpu_enter_guest arch/x86/kvm/x86.c:11490 [inline] vcpu_run+0x34c8/0x5ca0 arch/x86/kvm/x86.c:11648 kvm_arch_vcpu_ioctl_run+0x565/0x1830 arch/x86/kvm/x86.c:11993 kvm_vcpu_ioctl+0x730/0x16d0 virt/kvm/kvm_main.c:4492 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff06c39acb9 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:00007ff06d27b028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff06c615fa0 RCX: 00007ff06c39acb9 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000008 RBP: 00007ff06c408bf7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff06c616038 R14: 00007ff06c615fa0 R15: 00007ffec8f8f548