8021q: adding VLAN 0 to HW filter on device team0 8021q: adding VLAN 0 to HW filter on device team0 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. ------------[ cut here ]------------ kernel BUG at arch/x86/kvm/x86.c:353! BUG: unable to handle kernel paging request at ffff8801d5b3e000 PGD bc01067 P4D bc01067 PUD 1d9bdf063 PMD 80000001d5a001e3 kobject: 'kvm' (00000000b29fa281): fill_kobj_path: path = '/devices/virtual/misc/kvm' Oops: 000b [#1] PREEMPT SMP KASAN CPU: 0 PID: 8826 Comm: syz-executor3 Not tainted 4.19.0+ #300 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__update_clear_spte_fast include/linux/compiler.h:206 [inline] RIP: 0010:mmu_spte_clear_no_track arch/x86/kvm/mmu.c:819 [inline] RIP: 0010:drop_parent_pte arch/x86/kvm/mmu.c:1998 [inline] RIP: 0010:mmu_page_zap_pte+0x295/0x390 arch/x86/kvm/mmu.c:2576 Code: 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c7 85 58 ff ff ff 00 00 00 00 48 c1 ea 03 80 3c 02 00 0f 85 d4 00 00 00 48 c1 eb 03 <49> c7 45 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 41 be 01 00 RSP: 0018:ffff8801bc867158 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: 1ffff1003790ce30 RCX: ffffffff8111254b RDX: 1ffff1003ab67c00 RSI: ffffffff8111262b RDI: 0000000000000007 RBP: ffff8801bc867228 R08: ffff8801b9350180 R09: ffffed003b5c5b57 R10: ffffed003b5c5b57 R11: ffff8801dae2dabb R12: 1ffff1003790ce2c R13: ffff8801d5b3e000 R14: 0000000000000004 R15: 0000000000000000 FS: 0000000002537940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8801d5b3e000 CR3: 00000001d35fd000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_mmu_page_unlink_children arch/x86/kvm/mmu.c:2593 [inline] kvm_mmu_prepare_zap_page+0x215/0x1830 arch/x86/kvm/mmu.c:2637 kvm_zap_obsolete_pages arch/x86/kvm/mmu.c:5736 [inline] kvm_mmu_invalidate_zap_all_pages+0x348/0x7b0 arch/x86/kvm/mmu.c:5777 kvm_arch_flush_shadow_all+0x15/0x20 arch/x86/kvm/x86.c:9215 kvm_mmu_notifier_release+0x59/0x90 arch/x86/kvm/../../../virt/kvm/kvm_main.c:497 mmu_notifier_unregister+0x1ff/0x600 mm/mmu_notifier.c:396 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:748 [inline] kvm_put_kvm+0x6c0/0xff0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:773 kvm_vcpu_release+0x7b/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2407 __fput+0x385/0xa30 fs/file_table.c:278 ____fput+0x15/0x20 fs/file_table.c:309 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x411021 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffc331dfb10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000411021 RDX: 0000000000000000 RSI: 0000000000730930 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffc331dfa40 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 000000000000003d R15: 0000000000000003 Modules linked in: CR2: ffff8801d5b3e000 ---[ end trace aeec23f7e37e665e ]--- invalid opcode: 0000 [#2] PREEMPT SMP KASAN CPU: 1 PID: 8842 Comm: syz-executor1 Tainted: G D 4.19.0+ #300 RIP: 0010:__update_clear_spte_fast include/linux/compiler.h:206 [inline] RIP: 0010:mmu_spte_clear_no_track arch/x86/kvm/mmu.c:819 [inline] RIP: 0010:drop_parent_pte arch/x86/kvm/mmu.c:1998 [inline] RIP: 0010:mmu_page_zap_pte+0x295/0x390 arch/x86/kvm/mmu.c:2576 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Code: 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c7 85 58 ff ff ff 00 00 00 00 48 c1 ea 03 80 3c 02 00 0f 85 d4 00 00 00 48 c1 eb 03 <49> c7 45 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 41 be 01 00 RIP: 0010:kvm_spurious_fault+0x9/0x10 arch/x86/kvm/x86.c:353 RSP: 0018:ffff8801bc867158 EFLAGS: 00010a06 Code: 45 10 50 e8 e9 e8 7c 00 58 5a 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 e8 77 93 73 00 <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 49 89 f5 41 54 RSP: 0018:ffff8801c84273d0 EFLAGS: 00010293 RAX: dffffc0000000000 RBX: 1ffff1003790ce30 RCX: ffffffff8111254b RDX: 1ffff1003ab67c00 RSI: ffffffff8111262b RDI: 0000000000000007 RAX: ffff8801c0c68480 RBX: 1ffff10039084e7e RCX: ffffffff8138e47c RBP: ffff8801bc867228 R08: ffff8801b9350180 R09: ffffed003b5c5b57 RDX: 0000000000000000 RSI: ffffffff810beba9 RDI: ffff8801c8427410 R10: ffffed003b5c5b57 R11: ffff8801dae2dabb R12: 1ffff1003790ce2c RBP: ffff8801c84273d0 R08: ffff8801c0c68480 R09: ffff8801d7f72000 R13: ffff8801d5b3e000 R14: 0000000000000004 R15: 0000000000000000 R10: ffffed003afee5ff R11: ffff8801d7f72fff R12: ffff8801c8427450 FS: 0000000002537940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 R13: dffffc0000000000 R14: ffff8801d7f72000 R15: ffff8801c8427410 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 FS: 00007f2887193700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CR2: ffff8801d5b3e000 CR3: 00000001d35fd000 CR4: 00000000001426f0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 CR2: 000000000072c000 CR3: 00000001c7296000 CR4: 00000000001426e0 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000