kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 3126 Comm: udevd Not tainted 4.15.0-rc2-mm1+ #39 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:native_write_cr4+0x4/0x10 arch/x86/include/asm/special_insns.h:76 RSP: 0018:ffff8801db207ca8 EFLAGS: 00010006 RAX: ffff8801c8b0c140 RBX: 00000000001606f0 RCX: ffffffff811a2d22 RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606f0 RBP: ffff8801db207ca8 R08: ffff8801d991ac40 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000006 R13: ffff8801c8b0c140 R14: ffff8801db21a130 R15: ffff8801db21a130 FS: 00007f6aac2327a0(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6aac239000 CR3: 00000001c7529005 CR4: 00000000001626f0 Call Trace: __write_cr4 arch/x86/include/asm/paravirt.h:76 [inline] __cr4_set arch/x86/include/asm/tlbflush.h:252 [inline] cr4_clear_bits arch/x86/include/asm/tlbflush.h:275 [inline] kvm_cpu_vmxoff arch/x86/kvm/vmx.c:3582 [inline] hardware_disable+0x34a/0x4b0 arch/x86/kvm/vmx.c:3588 kvm_arch_hardware_disable+0x35/0xd0 arch/x86/kvm/x86.c:7969 hardware_disable_nolock+0x30/0x40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3283 flush_smp_call_function_queue+0x1f4/0x570 kernel/smp.c:243 generic_smp_call_function_single_interrupt+0x13/0x30 kernel/smp.c:192 smp_call_function_single_interrupt+0x103/0x640 arch/x86/kernel/smp.c:295 call_function_single_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:942 RIP: 0010:qlist_free_all+0x41/0x160 mm/kasan/quarantine.c:164 RSP: 0018:ffff8801c8b77828 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff04 RAX: ffff8801c44ecac0 RBX: 0000000000000282 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffea00071149df RDI: 0000000000000282 RBP: ffff8801c8b77860 R08: ffff8801d991ac40 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801dac001c0 R14: ffff8801c46f1080 R15: ffffffff862cb980 quarantine_reduce+0x141/0x170 mm/kasan/quarantine.c:259 kasan_kmalloc+0xca/0xe0 mm/kasan/kasan.c:536 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489 slab_post_alloc_hook mm/slab.h:446 [inline] slab_alloc mm/slab.c:3386 [inline] kmem_cache_alloc+0x11b/0x760 mm/slab.c:3546 kmem_cache_zalloc include/linux/slab.h:695 [inline] get_empty_filp+0xfb/0x4f0 fs/file_table.c:123 path_openat+0xed/0x3530 fs/namei.c:3514 do_filp_open+0x25b/0x3b0 fs/namei.c:3572 do_sys_open+0x502/0x6d0 fs/open.c:1059 SYSC_open fs/open.c:1077 [inline] SyS_open+0x2d/0x40 fs/open.c:1072 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x7f6aab93a120 RSP: 002b:00007ffdbb5ed3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00000000016c8fe0 RCX: 00007f6aab93a120 RDX: 0000000000000124 RSI: 00000000000a0241 RDI: 00007ffdbb5ed410 RBP: 0000000000000000 R08: 00007ffdbb5ecfd0 R09: 00007f6aab990760 R10: 6564752f6e75722f R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000001538030 R14: 00007ffdbb5ed040 R15: 0000000000000001 Code: 0f 1f 80 00 00 00 00 55 48 89 e5 0f 20 d8 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 0f 22 df 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 <0f> 22 e7 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 44 0f 20 c0 5d RIP: native_write_cr4+0x4/0x10 arch/x86/include/asm/special_insns.h:76 RSP: ffff8801db207ca8 ---[ end trace 0dfec3eaf83766a1 ]---