[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 61.680676] audit: type=1800 audit(1546172175.727:25): pid=9135 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 61.699810] audit: type=1800 audit(1546172175.737:26): pid=9135 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 61.719155] audit: type=1800 audit(1546172175.747:27): pid=9135 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 '10.128.0.56' (ECDSA) to the list of known hosts. 2018/12/30 12:16:28 fuzzer started 2018/12/30 12:16:33 dialing manager at 10.128.0.26:38305 2018/12/30 12:16:33 syscalls: 1 2018/12/30 12:16:33 code coverage: enabled 2018/12/30 12:16:33 comparison tracing: CONFIG_KCOV_ENABLE_COMPARISONS is not enabled 2018/12/30 12:16:33 setuid sandbox: enabled 2018/12/30 12:16:33 namespace sandbox: enabled 2018/12/30 12:16:33 Android sandbox: /sys/fs/selinux/policy does not exist 2018/12/30 12:16:33 fault injection: enabled 2018/12/30 12:16:33 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2018/12/30 12:16:33 net packet injection: enabled 2018/12/30 12:16:33 net device setup: enabled 12:16:35 executing program 0: r0 = socket$inet(0x10, 0x3, 0xc) sendmsg(r0, &(0x7f0000011fc8)={0x0, 0x0, &(0x7f0000009ff0)=[{&(0x7f0000000000)="24000000010807031dfffd946fa2830020200a0009000100001d85680c1baba20400ff7e", 0x24}], 0x1}, 0x0) syzkaller login: [ 82.350974] IPVS: ftp: loaded support on port[0] = 21 [ 82.468253] chnl_net:caif_netlink_parms(): no params data found [ 82.522994] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.529469] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.537360] device bridge_slave_0 entered promiscuous mode [ 82.545435] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.552008] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.559818] device bridge_slave_1 entered promiscuous mode [ 82.587470] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 82.597882] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 82.622888] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 82.630986] team0: Port device team_slave_0 added [ 82.638346] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 82.646409] team0: Port device team_slave_1 added [ 82.652433] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 82.660844] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 82.836224] device hsr_slave_0 entered promiscuous mode [ 83.072411] device hsr_slave_1 entered promiscuous mode [ 83.252945] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 83.260224] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 83.283381] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.289868] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.296890] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.303401] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.370821] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 83.377051] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.388798] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 83.400950] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 83.410456] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.418884] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.429299] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 83.444553] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 83.450663] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.463933] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 83.471612] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 83.479918] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.488880] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.495381] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.507317] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 83.517980] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 83.528365] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 83.536554] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.544902] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.553263] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.559703] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.567950] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.576723] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.590745] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 83.601339] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 83.612544] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 83.623329] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 83.632320] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 83.642064] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 83.653090] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 83.660199] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.669392] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.677664] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.686238] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.694689] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.702891] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.711341] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.719626] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.728971] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.736714] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.763483] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 83.785024] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.811965] ================================================================== [ 83.819365] BUG: KMSAN: uninit-value in send_hsr_supervision_frame+0x1056/0x1510 [ 83.826987] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.20.0-rc7+ #16 [ 83.833828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.843179] Call Trace: [ 83.845763] [ 83.847932] dump_stack+0x173/0x1d0 [ 83.851570] kmsan_report+0x12e/0x2a0 [ 83.855378] __msan_warning+0x82/0xf0 [ 83.859190] send_hsr_supervision_frame+0x1056/0x1510 [ 83.864409] hsr_announce+0x14c/0x3a0 [ 83.868224] call_timer_fn+0x285/0x600 [ 83.872114] ? hsr_dev_finalize+0xb90/0xb90 [ 83.876460] __run_timers+0xdb4/0x11d0 [ 83.880348] ? hsr_dev_finalize+0xb90/0xb90 [ 83.884689] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 83.890144] ? irqtime_account_irq+0xcf/0x2e0 [ 83.894659] ? timers_dead_cpu+0xa50/0xa50 [ 83.898899] run_timer_softirq+0x2e/0x50 [ 83.902964] __do_softirq+0x53f/0x93a [ 83.906791] irq_exit+0x214/0x250 [ 83.910256] exiting_irq+0xe/0x10 [ 83.913728] smp_apic_timer_interrupt+0x48/0x70 [ 83.918418] apic_timer_interrupt+0x2e/0x40 [ 83.922753] [ 83.925017] RIP: 0010:default_idle+0x27e/0x4e0 [ 83.929603] Code: 04 24 00 00 00 00 8b 45 c0 41 89 44 24 08 8b 45 c4 41 89 84 24 90 0c 00 00 48 c7 c7 d8 22 cb 8b 8b 75 bc e8 84 3b b0 f6 fb f4 <65> 8b 04 25 20 a1 02 00 89 45 b8 8b 1c 25 20 32 04 8c 48 c7 c7 20 [ 83.948510] RSP: 0018:ffffffff8bc0fd58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 83.956223] RAX: ffff888112443220 RBX: 0000000000000000 RCX: ffff888112443220 [ 83.963497] RDX: ffff888112043220 RSI: 0000160000000000 RDI: ccccccccccccd000 [ 83.970783] RBP: ffffffff8bc0fda0 R08: 0000000000000002 R09: ffffffff8bc0fd08 [ 83.978067] R10: 0000000000000000 R11: ffffffff8acbf5c0 R12: ffffffff8bc36ac8 [ 83.985336] R13: 0000000000000000 R14: ffffffff8bc36140 R15: ffffffff8bc36ac8 [ 83.992626] ? __cpuidle_text_start+0x8/0x8 [ 83.996959] ? default_idle+0x6e/0x4e0 [ 84.000849] ? __cpuidle_text_start+0x8/0x8 [ 84.005177] ? __cpuidle_text_start+0x8/0x8 [ 84.009507] arch_cpu_idle+0x26/0x30 [ 84.013222] do_idle+0x22d/0x800 [ 84.016601] cpu_startup_entry+0x45/0x50 [ 84.020668] rest_init+0x1c1/0x1f0 [ 84.024219] arch_call_rest_init+0x13/0x15 [ 84.028454] start_kernel+0x9d7/0xbb1 [ 84.032262] x86_64_start_reservations+0x19/0x2f [ 84.037017] x86_64_start_kernel+0x84/0x87 [ 84.041255] secondary_startup_64+0xa4/0xb0 [ 84.045579] [ 84.047200] Uninit was created at: [ 84.050742] kmsan_save_stack_with_flags+0x7a/0x130 [ 84.055760] kmsan_internal_alloc_meta_for_pages+0x113/0x580 [ 84.061563] kmsan_alloc_page+0x7e/0x100 [ 84.065623] __alloc_pages_nodemask+0x1587/0x5f20 [ 84.070462] page_frag_alloc+0x3c1/0x980 [ 84.074528] __netdev_alloc_skb+0x1f1/0xa50 [ 84.078849] send_hsr_supervision_frame+0x168/0x1510 [ 84.083954] hsr_announce+0x14c/0x3a0 [ 84.087755] call_timer_fn+0x285/0x600 [ 84.091650] __run_timers+0xdb4/0x11d0 [ 84.095542] run_timer_softirq+0x2e/0x50 [ 84.099615] __do_softirq+0x53f/0x93a [ 84.103412] ================================================================== [ 84.110766] Disabling lock debugging due to kernel taint [ 84.116237] Kernel panic - not syncing: panic_on_warn set ... [ 84.122125] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 4.20.0-rc7+ #16 [ 84.130087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.139557] Call Trace: [ 84.142143] [ 84.144303] dump_stack+0x173/0x1d0 [ 84.147945] panic+0x3ce/0x961 [ 84.151167] kmsan_report+0x293/0x2a0 [ 84.154975] __msan_warning+0x82/0xf0 [ 84.158799] send_hsr_supervision_frame+0x1056/0x1510 [ 84.164023] hsr_announce+0x14c/0x3a0 [ 84.167842] call_timer_fn+0x285/0x600 [ 84.171730] ? hsr_dev_finalize+0xb90/0xb90 [ 84.176085] __run_timers+0xdb4/0x11d0 [ 84.179977] ? hsr_dev_finalize+0xb90/0xb90 [ 84.184328] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 84.189774] ? irqtime_account_irq+0xcf/0x2e0 [ 84.194290] ? timers_dead_cpu+0xa50/0xa50 [ 84.198530] run_timer_softirq+0x2e/0x50 [ 84.202595] __do_softirq+0x53f/0x93a [ 84.206413] irq_exit+0x214/0x250 [ 84.209875] exiting_irq+0xe/0x10 [ 84.213329] smp_apic_timer_interrupt+0x48/0x70 [ 84.217998] apic_timer_interrupt+0x2e/0x40 [ 84.222315] [ 84.224562] RIP: 0010:default_idle+0x27e/0x4e0 [ 84.229143] Code: 04 24 00 00 00 00 8b 45 c0 41 89 44 24 08 8b 45 c4 41 89 84 24 90 0c 00 00 48 c7 c7 d8 22 cb 8b 8b 75 bc e8 84 3b b0 f6 fb f4 <65> 8b 04 25 20 a1 02 00 89 45 b8 8b 1c 25 20 32 04 8c 48 c7 c7 20 [ 84.248047] RSP: 0018:ffffffff8bc0fd58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 84.255760] RAX: ffff888112443220 RBX: 0000000000000000 RCX: ffff888112443220 [ 84.263038] RDX: ffff888112043220 RSI: 0000160000000000 RDI: ccccccccccccd000 [ 84.270305] RBP: ffffffff8bc0fda0 R08: 0000000000000002 R09: ffffffff8bc0fd08 [ 84.277571] R10: 0000000000000000 R11: ffffffff8acbf5c0 R12: ffffffff8bc36ac8 [ 84.284841] R13: 0000000000000000 R14: ffffffff8bc36140 R15: ffffffff8bc36ac8 [ 84.292134] ? __cpuidle_text_start+0x8/0x8 [ 84.296468] ? default_idle+0x6e/0x4e0 [ 84.300374] ? __cpuidle_text_start+0x8/0x8 [ 84.304717] ? __cpuidle_text_start+0x8/0x8 [ 84.309051] arch_cpu_idle+0x26/0x30 [ 84.312772] do_idle+0x22d/0x800 [ 84.316163] cpu_startup_entry+0x45/0x50 [ 84.320231] rest_init+0x1c1/0x1f0 [ 84.323781] arch_call_rest_init+0x13/0x15 [ 84.328032] start_kernel+0x9d7/0xbb1 [ 84.331849] x86_64_start_reservations+0x19/0x2f [ 84.336609] x86_64_start_kernel+0x84/0x87 [ 84.340848] secondary_startup_64+0xa4/0xb0 [ 84.346241] Kernel Offset: disabled [ 84.349865] Rebooting in 86400 seconds..