[ 36.029656] audit: type=1800 audit(1551041921.658:27): pid=7459 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 36.061130] audit: type=1800 audit(1551041921.658:28): pid=7459 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 36.894007] audit: type=1800 audit(1551041922.578:29): pid=7459 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 36.912689] audit: type=1800 audit(1551041922.578:30): pid=7459 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.65' (ECDSA) to the list of known hosts. 2019/02/24 21:00:54 parsed 1 programs 2019/02/24 21:00:56 executed programs: 0 syzkaller login: [ 170.434929] IPVS: ftp: loaded support on port[0] = 21 [ 170.490932] chnl_net:caif_netlink_parms(): no params data found [ 170.520320] bridge0: port 1(bridge_slave_0) entered blocking state [ 170.527579] bridge0: port 1(bridge_slave_0) entered disabled state [ 170.534581] device bridge_slave_0 entered promiscuous mode [ 170.542361] bridge0: port 2(bridge_slave_1) entered blocking state [ 170.548754] bridge0: port 2(bridge_slave_1) entered disabled state [ 170.555931] device bridge_slave_1 entered promiscuous mode [ 170.572341] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 170.580873] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 170.596486] team0: Port device team_slave_0 added [ 170.602683] team0: Port device team_slave_1 added [ 170.673517] device hsr_slave_0 entered promiscuous mode [ 170.711935] device hsr_slave_1 entered promiscuous mode [ 170.758193] bridge0: port 2(bridge_slave_1) entered blocking state [ 170.764654] bridge0: port 2(bridge_slave_1) entered forwarding state [ 170.771431] bridge0: port 1(bridge_slave_0) entered blocking state [ 170.777836] bridge0: port 1(bridge_slave_0) entered forwarding state [ 170.806767] 8021q: adding VLAN 0 to HW filter on device bond0 [ 170.817661] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 170.837597] bridge0: port 1(bridge_slave_0) entered disabled state [ 170.845066] bridge0: port 2(bridge_slave_1) entered disabled state [ 170.852869] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 170.864254] 8021q: adding VLAN 0 to HW filter on device team0 [ 170.873078] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 170.880765] bridge0: port 1(bridge_slave_0) entered blocking state [ 170.887165] bridge0: port 1(bridge_slave_0) entered forwarding state [ 170.897182] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 170.905285] bridge0: port 2(bridge_slave_1) entered blocking state [ 170.911637] bridge0: port 2(bridge_slave_1) entered forwarding state [ 170.926590] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 170.934463] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 170.945097] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 170.956828] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 170.966987] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 170.978709] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 170.986868] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 170.994699] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 171.009889] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 171.053730] 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. [ 171.157967] ------------[ cut here ]------------ [ 171.162734] kernel BUG at arch/x86/kvm/x86.c:357! [ 171.167560] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 171.173011] CPU: 0 PID: 7632 Comm: syz-executor.0 Not tainted 5.0.0-rc7+ #86 [ 171.180183] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 171.189529] RIP: 0010:kvm_spurious_fault+0x9/0x10 [ 171.194397] Code: e8 9c ce 65 00 41 bd 03 00 00 00 5b 44 89 e8 41 5c 41 5d 5d c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 e8 77 ce 65 00 <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 d6 41 55 41 54 [ 171.213517] RSP: 0018:ffff88808df37aa8 EFLAGS: 00010093 [ 171.219119] RAX: ffff88808f29c340 RBX: ffff8880a7c73870 RCX: ffffffff81329baa [ 171.226390] RDX: 0000000000000000 RSI: ffffffff810a1309 RDI: 0000000000000007 [ 171.233648] RBP: ffff88808df37aa8 R08: ffff88808f29c340 R09: fffff52000be5c48 [ 171.240902] R10: fffff52000be5c47 R11: ffffc90005f2e23b R12: 1ffff11011be6f58 [ 171.248169] R13: ffff8880a964b000 R14: ffff88808df37b20 R15: 0000000000000000 [ 171.255475] FS: 00000000018f8940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 171.263685] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 171.269548] CR2: ffff88808df37ae0 CR3: 00000000a6778000 CR4: 00000000001426f0 [ 171.276806] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 171.284156] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 171.291412] Call Trace: [ 171.293988] loaded_vmcs_init+0x95/0x250 [ 171.298041] ? find_msr_entry+0x170/0x170 [ 171.302174] ? handle_ept_misconfig+0x3e0/0x3e0 [ 171.306833] __loaded_vmcs_clear+0x229/0x360 [ 171.311227] ? trace_hardirqs_off+0x62/0x220 [ 171.315619] ? loaded_vmcs_init+0x250/0x250 [ 171.319928] generic_exec_single+0x284/0x4b0 [ 171.324325] smp_call_function_single+0x12d/0x420 [ 171.329154] ? loaded_vmcs_init+0x250/0x250 [ 171.333465] ? generic_exec_single+0x4b0/0x4b0 [ 171.338381] ? vmx_vcpu_put+0x1e/0x30 [ 171.342168] ? native_set_debugreg+0x28/0x30 [ 171.346583] ? kvm_arch_vcpu_put+0x2ec/0x430 [ 171.350974] free_loaded_vmcs+0x13c/0x1b0 [ 171.355171] vmx_free_vcpu+0x1be/0x340 [ 171.359046] kvm_arch_destroy_vm+0x25f/0x4f0 [ 171.363457] ? mmu_notifier_unregister+0x321/0x410 [ 171.368484] kvm_put_kvm+0x55b/0xc70 [ 171.372201] ? kvm_vm_release+0x60/0x60 [ 171.376171] kvm_vcpu_release+0x7b/0xa0 [ 171.380135] __fput+0x2df/0x8d0 [ 171.383446] ____fput+0x16/0x20 [ 171.386842] task_work_run+0x14a/0x1c0 [ 171.390715] exit_to_usermode_loop+0x273/0x2c0 [ 171.395281] do_syscall_64+0x52d/0x610 [ 171.399161] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 171.404379] RIP: 0033:0x411d31 [ 171.407551] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 94 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 [ 171.426571] RSP: 002b:00007ffec751f170 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 171.434262] RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000411d31 [ 171.441518] RDX: 0000000000000000 RSI: 0000000000740528 RDI: 0000000000000005 [ 171.448771] RBP: 0000000000000000 R08: 0000000000740520 R09: 0000000000029c0f [ 171.456021] R10: 00007ffec751f090 R11: 0000000000000293 R12: 0000000000000000 [ 171.463270] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 [ 171.470808] Modules linked in: [ 171.473992] ---[ end trace f5a4ea9cce7f0f76 ]--- [ 171.478737] RIP: 0010:kvm_spurious_fault+0x9/0x10 [ 171.483563] Code: e8 9c ce 65 00 41 bd 03 00 00 00 5b 44 89 e8 41 5c 41 5d 5d c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 e8 77 ce 65 00 <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 d6 41 55 41 54 [ 171.502446] RSP: 0018:ffff88808df37aa8 EFLAGS: 00010093 [ 171.507829] RAX: ffff88808f29c340 RBX: ffff8880a7c73870 RCX: ffffffff81329baa [ 171.515088] RDX: 0000000000000000 RSI: ffffffff810a1309 RDI: 0000000000000007 [ 171.522339] RBP: ffff88808df37aa8 R08: ffff88808f29c340 R09: fffff52000be5c48 [ 171.529596] R10: fffff52000be5c47 R11: ffffc90005f2e23b R12: 1ffff11011be6f58 [ 171.536848] R13: ffff8880a964b000 R14: ffff88808df37b20 R15: 0000000000000000 [ 171.544100] FS: 00000000018f8940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 171.552382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 171.558254] CR2: ffff88808df37ae0 CR3: 00000000a6778000 CR4: 00000000001426f0 [ 171.565506] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 171.572761] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 171.580013] Kernel panic - not syncing: Fatal exception [ 171.586494] Kernel Offset: disabled [ 171.590115] Rebooting in 86400 seconds..