[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 55.244905] audit: type=1800 audit(1540415012.291:25): pid=6060 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 55.264289] audit: type=1800 audit(1540415012.301:26): pid=6060 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 55.283850] audit: type=1800 audit(1540415012.321:27): pid=6060 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.74' (ECDSA) to the list of known hosts. 2018/10/24 21:03:46 parsed 1 programs 2018/10/24 21:04:02 executed programs: 0 syzkaller login: [ 85.880631] IPVS: ftp: loaded support on port[0] = 21 [ 85.887052] IPVS: ftp: loaded support on port[0] = 21 [ 85.913584] IPVS: ftp: loaded support on port[0] = 21 [ 85.932329] IPVS: ftp: loaded support on port[0] = 21 [ 85.935276] IPVS: ftp: loaded support on port[0] = 21 [ 85.949476] IPVS: ftp: loaded support on port[0] = 21 [ 87.527640] ip (6341) used greatest stack depth: 53312 bytes left [ 88.912432] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.918924] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.927708] device bridge_slave_0 entered promiscuous mode [ 89.109580] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.116210] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.124765] device bridge_slave_1 entered promiscuous mode [ 89.139132] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.145876] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.154330] device bridge_slave_0 entered promiscuous mode [ 89.163664] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.170118] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.178607] device bridge_slave_0 entered promiscuous mode [ 89.194061] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.200511] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.209088] device bridge_slave_0 entered promiscuous mode [ 89.260499] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.267063] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.275561] device bridge_slave_0 entered promiscuous mode [ 89.285142] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.291789] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.300111] device bridge_slave_0 entered promiscuous mode [ 89.349054] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 89.360922] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.367594] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.376099] device bridge_slave_1 entered promiscuous mode [ 89.390017] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.396828] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.405442] device bridge_slave_1 entered promiscuous mode [ 89.423182] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.429635] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.438329] device bridge_slave_1 entered promiscuous mode [ 89.468382] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.474969] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.483418] device bridge_slave_1 entered promiscuous mode [ 89.521494] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 89.530483] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.537116] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.545847] device bridge_slave_1 entered promiscuous mode [ 89.607496] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 89.618255] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 89.686853] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 89.718508] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 89.727424] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 89.805119] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 89.820377] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 89.861190] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 89.891739] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 89.934675] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 90.058991] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 90.233181] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 90.332242] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 90.445063] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 90.467458] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 90.493219] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 90.512815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 90.526492] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 90.537407] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 90.568058] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 90.610465] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 90.665329] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 90.676700] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 90.703280] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 90.735409] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 90.743520] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 90.758995] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 90.810084] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 90.900211] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 90.907564] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 91.112543] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 91.119595] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 91.158549] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 91.165827] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 91.179894] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 91.188750] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 91.309879] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 91.318185] team0: Port device team_slave_0 added [ 91.468704] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 91.476835] team0: Port device team_slave_0 added [ 91.523744] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 91.532225] team0: Port device team_slave_1 added [ 91.615129] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 91.623469] team0: Port device team_slave_0 added [ 91.678256] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 91.686521] team0: Port device team_slave_0 added [ 91.717640] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 91.725862] team0: Port device team_slave_1 added [ 91.741742] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 91.763158] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 91.772120] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 91.790050] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 91.798445] team0: Port device team_slave_0 added [ 91.822136] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 91.830066] team0: Port device team_slave_0 added [ 91.853636] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 91.862429] team0: Port device team_slave_1 added [ 91.869361] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 91.877470] team0: Port device team_slave_1 added [ 91.964875] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 91.990526] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 91.998830] team0: Port device team_slave_1 added [ 92.032564] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.073361] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 92.089116] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 92.105419] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 92.115501] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 92.123617] team0: Port device team_slave_1 added [ 92.133984] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 92.142912] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 92.151200] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 92.160188] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.206440] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 92.221890] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 92.232249] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 92.241064] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 92.249675] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 92.258780] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.287276] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 92.324533] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 92.336073] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 92.372259] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 92.381251] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 92.389974] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 92.399110] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.407477] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 92.416457] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 92.437532] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 92.450926] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 92.463187] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 92.480567] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 92.500041] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 92.549526] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 92.557382] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 92.566583] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 92.575171] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 92.584086] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.592450] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 92.601183] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 92.609551] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 92.618497] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 92.627191] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 92.636154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 92.644886] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 92.653866] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 92.670389] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 92.688495] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 92.706788] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 92.715668] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 92.901220] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 92.920326] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 92.932515] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 92.941316] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.949906] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 92.958883] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 92.967565] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 92.976643] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 92.985852] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 92.994878] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 93.003556] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 93.012600] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 93.021323] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 93.030403] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 93.088336] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 93.288504] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 93.297654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 94.725909] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.732453] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.739379] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.745938] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.754723] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 94.761263] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 94.867749] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.874303] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.881204] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.887789] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.896672] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 94.914615] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.921068] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.928081] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.934628] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.943226] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 94.973068] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.979510] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.986631] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.993182] bridge0: port 1(bridge_slave_0) entered forwarding state [ 95.002199] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 95.121438] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.127964] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.134959] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.141410] bridge0: port 1(bridge_slave_0) entered forwarding state [ 95.151178] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 95.457715] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.464248] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.471131] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.477695] bridge0: port 1(bridge_slave_0) entered forwarding state [ 95.486546] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 95.781842] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 95.790153] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 95.798388] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 95.806520] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 95.815704] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 102.043791] 8021q: adding VLAN 0 to HW filter on device bond0 [ 102.304613] 8021q: adding VLAN 0 to HW filter on device bond0 [ 102.391749] 8021q: adding VLAN 0 to HW filter on device bond0 [ 102.485580] 8021q: adding VLAN 0 to HW filter on device bond0 [ 102.643204] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 102.674452] 8021q: adding VLAN 0 to HW filter on device bond0 [ 102.812228] 8021q: adding VLAN 0 to HW filter on device bond0 [ 103.013367] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 103.091150] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 103.202583] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 103.282440] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 103.290527] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 103.298805] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 103.367790] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 103.470200] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 103.772246] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 103.778644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 103.787405] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 103.880942] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 103.887487] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 103.895785] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 103.905639] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 103.919442] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 103.927619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 104.008074] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.021519] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 104.028564] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 104.037805] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 104.200727] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 104.207272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 104.215503] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 104.572296] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.617054] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.713501] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.739592] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.922165] 8021q: adding VLAN 0 to HW filter on device team0 [ 108.544132] 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. 2018/10/24 21:04:26 executed programs: 6 2018/10/24 21:04:31 executed programs: 58 [ 117.091709] hrtimer: interrupt took 271552 ns [ 117.284051] ================================================================== [ 117.291478] BUG: KMSAN: kernel-infoleak in kvm_vcpu_write_guest_page+0x383/0x500 [ 117.299043] CPU: 0 PID: 8224 Comm: syz-executor2 Not tainted 4.19.0-rc8+ #70 [ 117.306245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.315620] Call Trace: [ 117.318248] dump_stack+0x306/0x460 [ 117.321903] ? kvm_vcpu_write_guest_page+0x383/0x500 [ 117.327058] kmsan_report+0x1a2/0x2e0 [ 117.330904] kmsan_internal_check_memory+0x374/0x460 [ 117.336041] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 117.341539] kmsan_copy_to_user+0x89/0xe0 [ 117.345732] kvm_vcpu_write_guest_page+0x383/0x500 [ 117.350733] handle_vmptrld+0x22ad/0x25e0 [ 117.354944] ? handle_vmlaunch+0x60/0x60 [ 117.359034] vmx_handle_exit+0x20f5/0xb900 [ 117.363328] ? vmx_flush_tlb_gva+0x450/0x450 [ 117.367780] kvm_arch_vcpu_ioctl_run+0xa22b/0x10ab0 [ 117.372964] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 117.378357] ? __list_del_entry_valid+0x123/0x440 [ 117.383236] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 117.388723] ? wait_for_common+0x791/0x960 [ 117.393023] ? kmsan_set_origin+0x83/0x140 [ 117.397297] ? kmsan_internal_unpoison_shadow+0x83/0xe0 [ 117.402715] ? __msan_get_context_state+0x9/0x30 [ 117.407505] ? INIT_BOOL+0x17/0x30 [ 117.411075] ? put_pid+0x3de/0x410 [ 117.414662] kvm_vcpu_ioctl+0x11a7/0x20b0 [ 117.418868] ? do_vfs_ioctl+0x187/0x2ca0 [ 117.422965] ? __se_sys_ioctl+0x1da/0x270 [ 117.427151] ? kvm_vm_release+0x90/0x90 [ 117.431157] do_vfs_ioctl+0xf28/0x2ca0 [ 117.435095] ? security_file_ioctl+0x92/0x200 [ 117.439638] __se_sys_ioctl+0x1da/0x270 [ 117.443659] __x64_sys_ioctl+0x4a/0x70 [ 117.447589] do_syscall_64+0xbe/0x100 [ 117.451432] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 117.456646] RIP: 0033:0x457569 [ 117.459879] 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 [ 117.478804] RSP: 002b:00007f00fa3bcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 117.486542] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 117.493835] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 117.501124] RBP: 000000000072c0e0 R08: 0000000000000000 R09: 0000000000000000 [ 117.508418] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f00fa3bd6d4 [ 117.515709] R13: 00000000004c0027 R14: 00000000004d0108 R15: 00000000ffffffff [ 117.523013] [ 117.524645] Uninit was created at: [ 117.528207] kmsan_internal_poison_shadow+0xc8/0x1d0 [ 117.533333] kmsan_kmalloc+0xa4/0x120 [ 117.537151] __kmalloc+0x14b/0x440 [ 117.540715] enter_vmx_operation+0x601/0x1660 [ 117.545237] vmx_set_nested_state+0xca3/0x1590 [ 117.549839] kvm_arch_vcpu_ioctl+0x5224/0x75a0 [ 117.554437] kvm_vcpu_ioctl+0xd6e/0x20b0 [ 117.558511] do_vfs_ioctl+0xf28/0x2ca0 [ 117.562416] __se_sys_ioctl+0x1da/0x270 [ 117.566405] __x64_sys_ioctl+0x4a/0x70 [ 117.570308] do_syscall_64+0xbe/0x100 [ 117.574126] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 117.579318] [ 117.580953] Bytes 1000-4095 of 4096 are uninitialized [ 117.586150] Memory access of size 4096 starts at ffff88018b334000 [ 117.592385] ================================================================== [ 117.599753] Disabling lock debugging due to kernel taint [ 117.605209] Kernel panic - not syncing: panic_on_warn set ... [ 117.605209] [ 117.612616] CPU: 0 PID: 8224 Comm: syz-executor2 Tainted: G B 4.19.0-rc8+ #70 [ 117.621197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.630568] Call Trace: [ 117.633198] dump_stack+0x306/0x460 [ 117.636869] panic+0x54c/0xafa [ 117.640127] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 117.645606] kmsan_report+0x2d3/0x2e0 [ 117.649438] kmsan_internal_check_memory+0x374/0x460 [ 117.654568] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 117.660052] kmsan_copy_to_user+0x89/0xe0 [ 117.664227] kvm_vcpu_write_guest_page+0x383/0x500 [ 117.669194] handle_vmptrld+0x22ad/0x25e0 [ 117.673383] ? handle_vmlaunch+0x60/0x60 [ 117.677463] vmx_handle_exit+0x20f5/0xb900 [ 117.681779] ? vmx_flush_tlb_gva+0x450/0x450 [ 117.686210] kvm_arch_vcpu_ioctl_run+0xa22b/0x10ab0 [ 117.691374] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 117.696767] ? __list_del_entry_valid+0x123/0x440 [ 117.701646] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 117.707116] ? wait_for_common+0x791/0x960 [ 117.711396] ? kmsan_set_origin+0x83/0x140 [ 117.715672] ? kmsan_internal_unpoison_shadow+0x83/0xe0 [ 117.721072] ? __msan_get_context_state+0x9/0x30 [ 117.725848] ? INIT_BOOL+0x17/0x30 [ 117.729408] ? put_pid+0x3de/0x410 [ 117.732982] kvm_vcpu_ioctl+0x11a7/0x20b0 [ 117.737172] ? do_vfs_ioctl+0x187/0x2ca0 [ 117.741253] ? __se_sys_ioctl+0x1da/0x270 [ 117.745426] ? kvm_vm_release+0x90/0x90 [ 117.749416] do_vfs_ioctl+0xf28/0x2ca0 [ 117.753344] ? security_file_ioctl+0x92/0x200 [ 117.757880] __se_sys_ioctl+0x1da/0x270 [ 117.761890] __x64_sys_ioctl+0x4a/0x70 [ 117.765800] do_syscall_64+0xbe/0x100 [ 117.769631] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 117.774833] RIP: 0033:0x457569 [ 117.778039] 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 [ 117.796959] RSP: 002b:00007f00fa3bcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 117.804691] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 117.811985] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 117.819267] RBP: 000000000072c0e0 R08: 0000000000000000 R09: 0000000000000000 [ 117.826554] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f00fa3bd6d4 [ 117.833835] R13: 00000000004c0027 R14: 00000000004d0108 R15: 00000000ffffffff [ 117.842132] Kernel Offset: disabled [ 117.845771] Rebooting in 86400 seconds..