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: 1 PID: 3124 Comm: udevd Not tainted 4.15.0-rc3+ #224 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:ffff8801db507ca8 EFLAGS: 00010006 RAX: ffff8801cc7f4480 RBX: 00000000001606e0 RCX: ffffffff811a2a92 RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606e0 RBP: ffff8801db507ca8 R08: ffff8801cbc7f048 R09: ffff8801cc7f4480 R10: 000000000000000b R11: ffffed003978fe0b R12: 0000000000000006 R13: ffff8801cc7f4480 R14: ffff8801db514850 R15: ffff8801db514850 FS: 00007f69385ce7a0(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f69385d5000 CR3: 00000001cee2c002 CR4: 00000000001626e0 Call Trace: __write_cr4 arch/x86/include/asm/paravirt.h:76 [inline] __cr4_set arch/x86/include/asm/tlbflush.h:180 [inline] cr4_clear_bits arch/x86/include/asm/tlbflush.h:203 [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:7982 hardware_disable_nolock+0x30/0x40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3310 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+0x9d/0xb0 arch/x86/entry/entry_64.S:817 RIP: 0010:unwind_get_return_address+0x15/0xa0 arch/x86/kernel/unwind_frame.c:14 RSP: 0018:ffff8801cbc7eff8 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff04 RAX: dffffc0000000000 RBX: ffff8801cbc7f0a0 RCX: 0000000000000001 RDX: 1ffff1003978fe01 RSI: ffff8801cbc7f2d0 RDI: ffff8801cbc7f008 RBP: ffff8801cbc7eff8 R08: ffff8801cbc7f048 R09: ffff8801cc7f4480 R10: 000000000000000b R11: ffffed003978fe0b R12: 0000000000000000 R13: 0000000000000000 R14: ffff8801cc7f4480 R15: ffff8801db07a800 __save_stack_trace+0x7e/0xd0 arch/x86/kernel/stacktrace.c:45 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x43/0xd0 mm/kasan/kasan.c:447 set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489 slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc mm/slab.c:3382 [inline] kmem_cache_alloc+0x11b/0x760 mm/slab.c:3542 anon_vma_alloc mm/rmap.c:81 [inline] __anon_vma_prepare+0x39d/0x6b0 mm/rmap.c:189 anon_vma_prepare include/linux/rmap.h:153 [inline] do_anonymous_page mm/memory.c:3127 [inline] handle_pte_fault mm/memory.c:3935 [inline] __handle_mm_fault+0x2c70/0x3ce0 mm/memory.c:4061 handle_mm_fault+0x334/0x8d0 mm/memory.c:4098 __do_page_fault+0x5c9/0xc90 arch/x86/mm/fault.c:1429 do_page_fault+0xee/0x720 arch/x86/mm/fault.c:1504 page_fault+0x22/0x30 arch/x86/entry/entry_64.S:1094 RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 arch/x86/lib/copy_user_64.S:66 RSP: 0018:ffff8801cbc7fa60 EFLAGS: 00010207 RAX: ffffed0039614c2c RBX: 000000000000001f RCX: 0000000000000003 RDX: 0000000000000007 RSI: ffff8801cb0a6140 RDI: 00007f69385d5000 RBP: ffff8801cbc7fa90 R08: 30313d524f4a414d R09: ffffed0039614c2c R10: 0000000000000004 R11: ffffed0039614c2b R12: 00007f69385d5000 R13: ffff8801cb0a6140 R14: 00007ffffffff000 R15: 00007f69385d501f copy_to_user include/linux/uaccess.h:155 [inline] seq_read+0xcb4/0x13d0 fs/seq_file.c:279 kernfs_fop_read+0x455/0x610 fs/kernfs/file.c:252 __vfs_read+0xef/0xa00 fs/read_write.c:411 vfs_read+0x11e/0x350 fs/read_write.c:447 SYSC_read fs/read_write.c:573 [inline] SyS_read+0xef/0x220 fs/read_write.c:566 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x7f6937cd6310 RSP: 002b:00007ffdb5bf6f38 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000001a669f0 RCX: 00007f6937cd6310 RDX: 0000000000001000 RSI: 00007f69385d5000 RDI: 0000000000000005 RBP: 00000000018d6030 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000001a668a0 R14: 0000000001a63850 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: ffff8801db507ca8 ---[ end trace 832533bcdd88b868 ]---