[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 91.554193] audit: type=1800 audit(1546160065.608:25): pid=10588 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 91.573473] audit: type=1800 audit(1546160065.608:26): pid=10588 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 91.593334] audit: type=1800 audit(1546160065.628:27): pid=10588 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 '10.128.0.117' (ECDSA) to the list of known hosts. 2018/12/30 08:54:39 fuzzer started 2018/12/30 08:54:44 dialing manager at 10.128.0.26:41469 2018/12/30 08:54:44 syscalls: 1 2018/12/30 08:54:44 code coverage: enabled 2018/12/30 08:54:44 comparison tracing: CONFIG_KCOV_ENABLE_COMPARISONS is not enabled 2018/12/30 08:54:44 setuid sandbox: enabled 2018/12/30 08:54:44 namespace sandbox: enabled 2018/12/30 08:54:44 Android sandbox: /sys/fs/selinux/policy does not exist 2018/12/30 08:54:44 fault injection: enabled 2018/12/30 08:54:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2018/12/30 08:54:44 net packet injection: enabled 2018/12/30 08:54:44 net device setup: enabled 08:54:47 executing program 0: r0 = memfd_create(&(0x7f0000000400)='/dev/snH/seq\x00', 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000700)='/dev/snd/seq\x00', 0x0, 0x1) dup2(r1, r0) ioctl$SNDRV_SEQ_IOCTL_CREATE_QUEUE(r1, 0xc08c5332, &(0x7f0000000140)={0x0, 0x0, 0x0, 'queue1\x00\x00\x00\x00\x00\x00\x00\x001;\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\xcc\xbf}\xdd\x00'}) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$SNDRV_SEQ_IOCTL_QUERY_SUBS(0xffffffffffffffff, 0xc058534f, 0x0) write$sndseq(r0, &(0x7f0000000000)=[{0x26, 0x0, 0x0, 0x0, @tick, {}, {0xf401}, @connect}], 0xffffff76) syzkaller login: [ 113.954427] IPVS: ftp: loaded support on port[0] = 21 [ 114.113728] chnl_net:caif_netlink_parms(): no params data found [ 114.184106] bridge0: port 1(bridge_slave_0) entered blocking state [ 114.191125] bridge0: port 1(bridge_slave_0) entered disabled state [ 114.199462] device bridge_slave_0 entered promiscuous mode [ 114.208640] bridge0: port 2(bridge_slave_1) entered blocking state [ 114.215245] bridge0: port 2(bridge_slave_1) entered disabled state [ 114.223535] device bridge_slave_1 entered promiscuous mode [ 114.258045] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 114.269403] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 114.300102] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 114.308973] team0: Port device team_slave_0 added [ 114.315585] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 114.324179] team0: Port device team_slave_1 added [ 114.330336] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 114.339056] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 114.447003] device hsr_slave_0 entered promiscuous mode [ 114.502231] device hsr_slave_1 entered promiscuous mode [ 114.763512] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 114.771142] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 114.801935] bridge0: port 2(bridge_slave_1) entered blocking state [ 114.808469] bridge0: port 2(bridge_slave_1) entered forwarding state [ 114.815832] bridge0: port 1(bridge_slave_0) entered blocking state [ 114.822429] bridge0: port 1(bridge_slave_0) entered forwarding state [ 114.914365] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 114.920490] 8021q: adding VLAN 0 to HW filter on device bond0 [ 114.935676] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 114.949221] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 114.960167] bridge0: port 1(bridge_slave_0) entered disabled state [ 114.969754] bridge0: port 2(bridge_slave_1) entered disabled state [ 114.980785] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 114.999848] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 115.006050] 8021q: adding VLAN 0 to HW filter on device team0 [ 115.023621] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 115.031950] bridge0: port 1(bridge_slave_0) entered blocking state [ 115.038457] bridge0: port 1(bridge_slave_0) entered forwarding state [ 115.087486] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 115.096080] bridge0: port 2(bridge_slave_1) entered blocking state [ 115.102729] bridge0: port 2(bridge_slave_1) entered forwarding state [ 115.113731] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 115.123048] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 115.137222] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 115.144458] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 115.152559] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 115.161007] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 115.175634] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 115.182719] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 115.191746] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 115.217179] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 115.226745] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 115.254572] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 115.275467] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 115.341776] ================================================================== [ 115.349183] BUG: KMSAN: uninit-value in send_hsr_supervision_frame+0x1056/0x1510 [ 115.356753] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.20.0-rc7+ #16 [ 115.363341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 115.372714] Call Trace: [ 115.375318] [ 115.377491] dump_stack+0x173/0x1d0 [ 115.381151] kmsan_report+0x12e/0x2a0 [ 115.384982] __msan_warning+0x82/0xf0 [ 115.388813] send_hsr_supervision_frame+0x1056/0x1510 [ 115.394063] hsr_announce+0x14c/0x3a0 [ 115.397909] call_timer_fn+0x285/0x600 [ 115.401812] ? hsr_dev_finalize+0xb90/0xb90 [ 115.406161] __run_timers+0xdb4/0x11d0 [ 115.410072] ? hsr_dev_finalize+0xb90/0xb90 [ 115.414451] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 115.419918] ? irqtime_account_irq+0xcf/0x2e0 [ 115.424435] ? timers_dead_cpu+0xa50/0xa50 [ 115.428728] run_timer_softirq+0x2e/0x50 [ 115.432810] __do_softirq+0x53f/0x93a [ 115.436651] irq_exit+0x214/0x250 [ 115.440135] exiting_irq+0xe/0x10 [ 115.443610] smp_apic_timer_interrupt+0x48/0x70 [ 115.448313] apic_timer_interrupt+0x2e/0x40 [ 115.452638] [ 115.454899] RIP: 0010:default_idle+0x27e/0x4e0 [ 115.459497] 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 [ 115.478413] RSP: 0018:ffffffff8bc0fd58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 115.486144] RAX: ffff888112443220 RBX: 0000000000000000 RCX: ffff888112443220 [ 115.493423] RDX: ffff888112043220 RSI: 0000160000000000 RDI: ccccccccccccd000 [ 115.500726] RBP: ffffffff8bc0fda0 R08: 0000000000000002 R09: ffffffff8bc0fd08 [ 115.508010] R10: 0000000000000000 R11: ffffffff8acbf5c0 R12: ffffffff8bc36ac8 [ 115.515292] R13: 0000000000000000 R14: ffffffff8bc36140 R15: ffffffff8bc36ac8 [ 115.522606] ? __cpuidle_text_start+0x8/0x8 [ 115.526965] ? default_idle+0x6e/0x4e0 [ 115.530872] ? __cpuidle_text_start+0x8/0x8 [ 115.535211] ? __cpuidle_text_start+0x8/0x8 [ 115.539568] arch_cpu_idle+0x26/0x30 [ 115.543299] do_idle+0x22d/0x800 [ 115.546718] cpu_startup_entry+0x45/0x50 [ 115.550803] rest_init+0x1c1/0x1f0 [ 115.554370] arch_call_rest_init+0x13/0x15 [ 115.558624] start_kernel+0x9d7/0xbb1 [ 115.562457] x86_64_start_reservations+0x19/0x2f [ 115.567247] x86_64_start_kernel+0x84/0x87 [ 115.571496] secondary_startup_64+0xa4/0xb0 [ 115.575844] [ 115.577472] Uninit was created at: [ 115.581035] kmsan_save_stack_with_flags+0x7a/0x130 [ 115.586062] kmsan_internal_alloc_meta_for_pages+0x113/0x580 [ 115.591870] kmsan_alloc_page+0x7e/0x100 [ 115.595940] __alloc_pages_nodemask+0x1587/0x5f20 [ 115.600829] page_frag_alloc+0x3c1/0x980 [ 115.604906] __netdev_alloc_skb+0x1f1/0xa50 [ 115.609264] send_hsr_supervision_frame+0x168/0x1510 [ 115.614377] hsr_announce+0x14c/0x3a0 [ 115.618192] call_timer_fn+0x285/0x600 [ 115.622093] __run_timers+0xdb4/0x11d0 [ 115.625992] run_timer_softirq+0x2e/0x50 [ 115.630066] __do_softirq+0x53f/0x93a [ 115.633872] ================================================================== [ 115.641232] Disabling lock debugging due to kernel taint [ 115.646725] Kernel panic - not syncing: panic_on_warn set ... [ 115.652624] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 4.20.0-rc7+ #16 [ 115.660599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 115.669969] Call Trace: [ 115.672570] [ 115.674751] dump_stack+0x173/0x1d0 [ 115.678410] panic+0x3ce/0x961 [ 115.681722] kmsan_report+0x293/0x2a0 [ 115.685583] __msan_warning+0x82/0xf0 [ 115.689440] send_hsr_supervision_frame+0x1056/0x1510 [ 115.694696] hsr_announce+0x14c/0x3a0 [ 115.698535] call_timer_fn+0x285/0x600 [ 115.702457] ? hsr_dev_finalize+0xb90/0xb90 [ 115.706822] __run_timers+0xdb4/0x11d0 [ 115.710739] ? hsr_dev_finalize+0xb90/0xb90 [ 115.715105] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 115.720569] ? irqtime_account_irq+0xcf/0x2e0 [ 115.725112] ? timers_dead_cpu+0xa50/0xa50 [ 115.729411] run_timer_softirq+0x2e/0x50 [ 115.733491] __do_softirq+0x53f/0x93a [ 115.737331] irq_exit+0x214/0x250 [ 115.740803] exiting_irq+0xe/0x10 [ 115.744274] smp_apic_timer_interrupt+0x48/0x70 [ 115.748961] apic_timer_interrupt+0x2e/0x40 [ 115.753289] [ 115.755548] RIP: 0010:default_idle+0x27e/0x4e0 [ 115.760146] 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 [ 115.779066] RSP: 0018:ffffffff8bc0fd58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 115.786789] RAX: ffff888112443220 RBX: 0000000000000000 RCX: ffff888112443220 [ 115.794073] RDX: ffff888112043220 RSI: 0000160000000000 RDI: ccccccccccccd000 [ 115.801386] RBP: ffffffff8bc0fda0 R08: 0000000000000002 R09: ffffffff8bc0fd08 [ 115.808676] R10: 0000000000000000 R11: ffffffff8acbf5c0 R12: ffffffff8bc36ac8 [ 115.815971] R13: 0000000000000000 R14: ffffffff8bc36140 R15: ffffffff8bc36ac8 [ 115.823266] ? __cpuidle_text_start+0x8/0x8 [ 115.827624] ? default_idle+0x6e/0x4e0 [ 115.831526] ? __cpuidle_text_start+0x8/0x8 [ 115.835871] ? __cpuidle_text_start+0x8/0x8 [ 115.840220] arch_cpu_idle+0x26/0x30 [ 115.843954] do_idle+0x22d/0x800 [ 115.847364] cpu_startup_entry+0x45/0x50 [ 115.851478] rest_init+0x1c1/0x1f0 [ 115.855045] arch_call_rest_init+0x13/0x15 [ 115.859301] start_kernel+0x9d7/0xbb1 [ 115.863134] x86_64_start_reservations+0x19/0x2f [ 115.867909] x86_64_start_kernel+0x84/0x87 [ 115.872157] secondary_startup_64+0xa4/0xb0 [ 115.877438] Kernel Offset: disabled [ 115.881071] Rebooting in 86400 seconds..