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IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
8021q: adding VLAN 0 to HW filter on device team0
L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html for details.
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BUG: KMSAN: uninit-value in fastop arch/x86/kvm/emulate.c:5414 [inline]
BUG: KMSAN: uninit-value in x86_emulate_insn+0x2e03/0xa5b0 arch/x86/kvm/emulate.c:5587
CPU: 1 PID: 6493 Comm: syz-executor0 Not tainted 4.19.0-rc8+ #70
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x306/0x460 lib/dump_stack.c:113
 kmsan_report+0x1a2/0x2e0 mm/kmsan/kmsan.c:917
 __msan_warning+0x7c/0xe0 mm/kmsan/kmsan_instr.c:500
 fastop arch/x86/kvm/emulate.c:5414 [inline]
 x86_emulate_insn+0x2e03/0xa5b0 arch/x86/kvm/emulate.c:5587
 x86_emulate_instruction+0x14e6/0x6360 arch/x86/kvm/x86.c:6237
 kvm_emulate_instruction arch/x86/kvm/x86.c:6301 [inline]
 complete_emulated_io arch/x86/kvm/x86.c:7774 [inline]
 complete_emulated_mmio+0xa1d/0xb70 arch/x86/kvm/x86.c:7838
 kvm_arch_vcpu_ioctl_run+0x1521/0x10ab0 arch/x86/kvm/x86.c:7921
 kvm_vcpu_ioctl+0x11a7/0x20b0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2590
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0xf28/0x2ca0 fs/ioctl.c:687
 ksys_ioctl fs/ioctl.c:702 [inline]
 __do_sys_ioctl fs/ioctl.c:709 [inline]
 __se_sys_ioctl+0x1da/0x270 fs/ioctl.c:707
 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:707
 do_syscall_64+0xbe/0x100 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x457569
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f076a867c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f076a8686d4
R13: 00000000004c0027 R14: 00000000004d0108 R15: 00000000ffffffff

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:255 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:270 [inline]
 kmsan_internal_chain_origin+0x136/0x240 mm/kmsan/kmsan.c:572
 kmsan_memcpy_origins+0x13d/0x1b0 mm/kmsan/kmsan.c:396
 __msan_memcpy+0xcf/0x150 mm/kmsan/kmsan_instr.c:286
 read_emulated arch/x86/kvm/emulate.c:1416 [inline]
 segmented_read arch/x86/kvm/emulate.c:1432 [inline]
 x86_emulate_insn+0xded/0xa5b0 arch/x86/kvm/emulate.c:5537
 x86_emulate_instruction+0x14e6/0x6360 arch/x86/kvm/x86.c:6237
 kvm_emulate_instruction arch/x86/kvm/x86.c:6301 [inline]
 complete_emulated_io arch/x86/kvm/x86.c:7774 [inline]
 complete_emulated_mmio+0xa1d/0xb70 arch/x86/kvm/x86.c:7838
 kvm_arch_vcpu_ioctl_run+0x1521/0x10ab0 arch/x86/kvm/x86.c:7921
 kvm_vcpu_ioctl+0x11a7/0x20b0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2590
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0xf28/0x2ca0 fs/ioctl.c:687
 ksys_ioctl fs/ioctl.c:702 [inline]
 __do_sys_ioctl fs/ioctl.c:709 [inline]
 __se_sys_ioctl+0x1da/0x270 fs/ioctl.c:707
 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:707
 do_syscall_64+0xbe/0x100 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:255 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:270 [inline]
 kmsan_internal_chain_origin+0x136/0x240 mm/kmsan/kmsan.c:572
 kmsan_memcpy_origins+0x13d/0x1b0 mm/kmsan/kmsan.c:396
 __msan_memcpy+0xcf/0x150 mm/kmsan/kmsan_instr.c:286
 complete_emulated_mmio+0x1fa/0xb70 arch/x86/kvm/x86.c:7818
 kvm_arch_vcpu_ioctl_run+0x1521/0x10ab0 arch/x86/kvm/x86.c:7921
 kvm_vcpu_ioctl+0x11a7/0x20b0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2590
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0xf28/0x2ca0 fs/ioctl.c:687
 ksys_ioctl fs/ioctl.c:702 [inline]
 __do_sys_ioctl fs/ioctl.c:709 [inline]
 __se_sys_ioctl+0x1da/0x270 fs/ioctl.c:707
 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:707
 do_syscall_64+0xbe/0x100 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:255 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:270 [inline]
 kmsan_internal_chain_origin+0x136/0x240 mm/kmsan/kmsan.c:572
 kmsan_memcpy_origins+0x13d/0x1b0 mm/kmsan/kmsan.c:396
 __msan_memcpy+0xcf/0x150 mm/kmsan/kmsan_instr.c:286
 write_exit_mmio+0x99/0xf0 arch/x86/kvm/x86.c:5122
 emulator_read_write+0x870/0x9f0 arch/x86/kvm/x86.c:5243
 emulator_write_emulated+0xf7/0x110 arch/x86/kvm/x86.c:5262
 segmented_write arch/x86/kvm/emulate.c:1446 [inline]
 writeback+0xe21/0x1060 arch/x86/kvm/emulate.c:1814
 x86_emulate_insn+0x5e97/0xa5b0 arch/x86/kvm/emulate.c:5673
 x86_emulate_instruction+0x14e6/0x6360 arch/x86/kvm/x86.c:6237
 kvm_mmu_page_fault+0xd24/0x2ae0 arch/x86/kvm/mmu.c:5296
 handle_ept_violation+0x7e1/0x820 arch/x86/kvm/vmx.c:7693
 vmx_handle_exit+0x20f5/0xb900 arch/x86/kvm/vmx.c:10133
 vcpu_enter_guest arch/x86/kvm/x86.c:7667 [inline]
 vcpu_run arch/x86/kvm/x86.c:7730 [inline]
 kvm_arch_vcpu_ioctl_run+0xa22b/0x10ab0 arch/x86/kvm/x86.c:7930
 kvm_vcpu_ioctl+0x11a7/0x20b0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2590
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0xf28/0x2ca0 fs/ioctl.c:687
 ksys_ioctl fs/ioctl.c:702 [inline]
 __do_sys_ioctl fs/ioctl.c:709 [inline]
 __se_sys_ioctl+0x1da/0x270 fs/ioctl.c:707
 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:707
 do_syscall_64+0xbe/0x100 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:255 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:270 [inline]
 kmsan_internal_chain_origin+0x136/0x240 mm/kmsan/kmsan.c:572
 __msan_chain_origin+0x75/0xd0 mm/kmsan/kmsan_instr.c:337
 em_fnstsw+0x21f/0x240 arch/x86/kvm/emulate.c:1175
 x86_emulate_insn+0x2d48/0xa5b0 arch/x86/kvm/emulate.c:5592
 x86_emulate_instruction+0x14e6/0x6360 arch/x86/kvm/x86.c:6237
 kvm_mmu_page_fault+0xd24/0x2ae0 arch/x86/kvm/mmu.c:5296
 handle_ept_violation+0x7e1/0x820 arch/x86/kvm/vmx.c:7693
 vmx_handle_exit+0x20f5/0xb900 arch/x86/kvm/vmx.c:10133
 vcpu_enter_guest arch/x86/kvm/x86.c:7667 [inline]
 vcpu_run arch/x86/kvm/x86.c:7730 [inline]
 kvm_arch_vcpu_ioctl_run+0xa22b/0x10ab0 arch/x86/kvm/x86.c:7930
 kvm_vcpu_ioctl+0x11a7/0x20b0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2590
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0xf28/0x2ca0 fs/ioctl.c:687
 ksys_ioctl fs/ioctl.c:702 [inline]
 __do_sys_ioctl fs/ioctl.c:709 [inline]
 __se_sys_ioctl+0x1da/0x270 fs/ioctl.c:707
 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:707
 do_syscall_64+0xbe/0x100 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7

Local variable description: ----fsw@em_fnstsw
Variable was created at:
 em_fnstsw+0x4a/0x240 arch/x86/kvm/emulate.c:1167
 x86_emulate_insn+0x2d48/0xa5b0 arch/x86/kvm/emulate.c:5592
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