[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 75.102537][ T32] audit: type=1800 audit(1570574440.167:25): pid=11422 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 75.125322][ T32] audit: type=1800 audit(1570574440.187:26): pid=11422 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 75.151396][ T32] audit: type=1800 audit(1570574440.207:27): pid=11422 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 '10.128.10.19' (ECDSA) to the list of known hosts. syzkaller login: [ 88.185977][T11573] IPVS: ftp: loaded support on port[0] = 21 [ 88.253320][T11573] chnl_net:caif_netlink_parms(): no params data found [ 88.285588][T11573] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.292837][T11573] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.300796][T11573] device bridge_slave_0 entered promiscuous mode [ 88.309149][T11573] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.316354][T11573] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.324662][T11573] device bridge_slave_1 entered promiscuous mode [ 88.345133][T11573] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 88.356226][T11573] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 88.377890][T11573] team0: Port device team_slave_0 added [ 88.385570][T11573] team0: Port device team_slave_1 added [ 88.454618][T11573] device hsr_slave_0 entered promiscuous mode [ 88.492453][T11573] device hsr_slave_1 entered promiscuous mode [ 88.542816][T11573] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.550003][T11573] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.557800][T11573] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.564998][T11573] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.610153][T11573] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.625049][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 88.635391][ T31] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.644116][ T31] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.653218][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 88.667583][T11573] 8021q: adding VLAN 0 to HW filter on device team0 [ 88.679755][ T2933] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 88.688805][ T2933] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.695947][ T2933] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.709396][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 88.718358][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.725582][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.750118][ T2933] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 88.759976][ T2933] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 88.772731][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 88.786725][ T2933] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 88.799648][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 88.811247][T11573] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 88.836273][T11573] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 89.142149][ T17] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 89.382270][ T17] usb 1-1: Using ep0 maxpacket: 32 [ 89.542350][ T17] usb 1-1: unable to get BOS descriptor or descriptor too short [ 89.622353][ T17] usb 1-1: config 129 has an invalid interface number: 129 but max is 0 [ 89.630760][ T17] usb 1-1: config 129 has no interface number 0 [ 89.637210][ T17] usb 1-1: config 129 interface 129 altsetting 1 has an invalid endpoint with address 0x80, skipping [ 89.648341][ T17] usb 1-1: config 129 interface 129 altsetting 1 endpoint 0xB has invalid maxpacket 543, setting to 64 [ 89.659561][ T17] usb 1-1: config 129 interface 129 altsetting 1 endpoint 0x7 has invalid maxpacket 707, setting to 64 [ 89.670727][ T17] usb 1-1: config 129 interface 129 altsetting 1 endpoint 0xD has invalid maxpacket 557, setting to 64 [ 89.682503][ T17] usb 1-1: config 129 interface 129 altsetting 1 bulk endpoint 0x3 has invalid maxpacket 414 [ 89.692896][ T17] usb 1-1: config 129 interface 129 altsetting 1 has an invalid endpoint descriptor of length 2, skipping [ 89.704323][ T17] usb 1-1: config 129 interface 129 altsetting 1 has a duplicate endpoint with address 0x3, skipping [ 89.715290][ T17] usb 1-1: config 129 interface 129 altsetting 1 bulk endpoint 0x2 has invalid maxpacket 977 [ 89.725576][ T17] usb 1-1: config 129 interface 129 altsetting 1 has 8 endpoint descriptors, different from the interface descriptor's value: 7 [ 89.738913][ T17] usb 1-1: config 129 interface 129 has no altsetting 0 [ 89.982160][ T17] usb 1-1: string descriptor 0 read error: -22 [ 89.988573][ T17] usb 1-1: New USB device found, idVendor=1618, idProduct=9113, bcdDevice=25.de [ 89.997816][ T17] usb 1-1: New USB device strings: Mfr=3, Product=0, SerialNumber=9 [ 90.044741][ T17] rsi_91x: rsi_probe: Failed to init usb interface [ 90.053205][ T17] rsi_91x: rsi_probe: Failed in probe...Exiting [ 90.059612][ T17] RSI-USB WLAN: probe of 1-1:129.129 failed with error -22 [ 90.243442][ T17] ===================================================== [ 90.250620][ T17] BUG: KMSAN: uninit-value in ___neigh_create+0x2783/0x2c40 [ 90.257891][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.3.0-rc7+ #0 [ 90.265341][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.275394][ T17] Workqueue: ipv6_addrconf addrconf_dad_work [ 90.281354][ T17] Call Trace: [ 90.284629][ T17] dump_stack+0x191/0x1f0 [ 90.288949][ T17] kmsan_report+0x17d/0x2f0 [ 90.293436][ T17] __msan_warning+0x73/0xe0 [ 90.297924][ T17] __list_add_valid+0x292/0x430 [ 90.302759][ T17] ___neigh_create+0x2783/0x2c40 [ 90.307690][ T17] __neigh_create+0xbd/0xd0 [ 90.312177][ T17] ip6_finish_output2+0x149a/0x2670 [ 90.317369][ T17] ? kmsan_get_shadow_origin_ptr+0x6e/0x4c0 [ 90.323328][ T17] __ip6_finish_output+0x83d/0x8f0 [ 90.328422][ T17] ip6_finish_output+0x2db/0x420 [ 90.333348][ T17] ip6_output+0x5d3/0x720 [ 90.337662][ T17] ? ip6_output+0x720/0x720 [ 90.342148][ T17] ? ac6_seq_show+0x200/0x200 [ 90.346804][ T17] ndisc_send_skb+0x1083/0x15e0 [ 90.351646][ T17] ? ndisc_error_report+0x1a0/0x1a0 [ 90.356827][ T17] ndisc_send_ns+0xda8/0xe10 [ 90.361524][ T17] ndisc_solicit+0x498/0x5d0 [ 90.366104][ T17] ? ndisc_cleanup+0x70/0x70 [ 90.370680][ T17] __neigh_event_send+0x10fd/0x1d40 [ 90.375867][ T17] ? ___neigh_create+0x2a81/0x2c40 [ 90.380983][ T17] neigh_resolve_output+0x25e/0xb50 [ 90.386179][ T17] ? neigh_event_ns+0x8a0/0x8a0 [ 90.391064][ T17] ip6_finish_output2+0x2129/0x2670 [ 90.396263][ T17] ? kmsan_get_shadow_origin_ptr+0x6e/0x4c0 [ 90.402153][ T17] __ip6_finish_output+0x83d/0x8f0 [ 90.407265][ T17] ip6_finish_output+0x2db/0x420 [ 90.412239][ T17] ip6_output+0x5d3/0x720 [ 90.416558][ T17] ? ip6_output+0x720/0x720 [ 90.421041][ T17] ? ac6_seq_show+0x200/0x200 [ 90.425697][ T17] ndisc_send_skb+0x1083/0x15e0 [ 90.430583][ T17] ? ndisc_error_report+0x1a0/0x1a0 [ 90.435764][ T17] ndisc_send_rs+0xb5d/0xb90 [ 90.440383][ T17] addrconf_dad_completed+0xc03/0x1490 [ 90.445834][ T17] addrconf_dad_work+0x17b3/0x26e0 [ 90.450931][ T17] ? kmsan_get_shadow_origin_ptr+0x6e/0x4c0 [ 90.456940][ T17] ? ipv6_get_saddr_eval+0x13b0/0x13b0 [ 90.462392][ T17] ? ipv6_get_saddr_eval+0x13b0/0x13b0 [ 90.467946][ T17] process_one_work+0x1572/0x1ef0 [ 90.473031][ T17] worker_thread+0x111b/0x2460 [ 90.477791][ T17] kthread+0x4b5/0x4f0 [ 90.481842][ T17] ? process_one_work+0x1ef0/0x1ef0 [ 90.487021][ T17] ? kthread_blkcg+0xf0/0xf0 [ 90.491608][ T17] ret_from_fork+0x35/0x40 [ 90.496003][ T17] [ 90.498309][ T17] Uninit was created at: [ 90.502530][ T17] kmsan_internal_poison_shadow+0x60/0x120 [ 90.508312][ T17] kmsan_slab_alloc+0xaa/0x120 [ 90.513063][ T17] __kmalloc_node_track_caller+0xb55/0x1320 [ 90.518935][ T17] __alloc_skb+0x306/0xa10 [ 90.523342][ T17] ndisc_alloc_skb+0x1ba/0x5b0 [ 90.528079][ T17] ndisc_send_ns+0x5e9/0xe10 [ 90.532646][ T17] ndisc_solicit+0x498/0x5d0 [ 90.537210][ T17] __neigh_event_send+0x10fd/0x1d40 [ 90.542385][ T17] neigh_resolve_output+0x25e/0xb50 [ 90.547557][ T17] ip6_finish_output2+0x2129/0x2670 [ 90.552730][ T17] __ip6_finish_output+0x83d/0x8f0 [ 90.557813][ T17] ip6_finish_output+0x2db/0x420 [ 90.562734][ T17] ip6_output+0x5d3/0x720 [ 90.567040][ T17] ndisc_send_skb+0x1083/0x15e0 [ 90.571865][ T17] ndisc_send_rs+0xb5d/0xb90 [ 90.576432][ T17] addrconf_dad_completed+0xc03/0x1490 [ 90.581867][ T17] addrconf_dad_work+0x17b3/0x26e0 [ 90.587039][ T17] process_one_work+0x1572/0x1ef0 [ 90.592039][ T17] worker_thread+0x111b/0x2460 [ 90.596774][ T17] kthread+0x4b5/0x4f0 [ 90.600821][ T17] ret_from_fork+0x35/0x40 [ 90.605207][ T17] ===================================================== [ 90.612114][ T17] Disabling lock debugging due to kernel taint [ 90.618261][ T17] Kernel panic - not syncing: panic_on_warn set ... [ 90.624842][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Tainted: G B 5.3.0-rc7+ #0 [ 90.633570][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.643614][ T17] Workqueue: ipv6_addrconf addrconf_dad_work [ 90.649565][ T17] Call Trace: [ 90.652849][ T17] dump_stack+0x191/0x1f0 [ 90.657177][ T17] panic+0x3c9/0xc1e [ 90.661081][ T17] kmsan_report+0x2e5/0x2f0 [ 90.665568][ T17] __msan_warning+0x73/0xe0 [ 90.670060][ T17] __list_add_valid+0x292/0x430 [ 90.674898][ T17] ___neigh_create+0x2783/0x2c40 [ 90.679832][ T17] __neigh_create+0xbd/0xd0 [ 90.684344][ T17] ip6_finish_output2+0x149a/0x2670 [ 90.689550][ T17] ? kmsan_get_shadow_origin_ptr+0x6e/0x4c0 [ 90.695425][ T17] __ip6_finish_output+0x83d/0x8f0 [ 90.700633][ T17] ip6_finish_output+0x2db/0x420 [ 90.705554][ T17] ip6_output+0x5d3/0x720 [ 90.709878][ T17] ? ip6_output+0x720/0x720 [ 90.714361][ T17] ? ac6_seq_show+0x200/0x200 [ 90.719022][ T17] ndisc_send_skb+0x1083/0x15e0 [ 90.723883][ T17] ? ndisc_error_report+0x1a0/0x1a0 [ 90.729064][ T17] ndisc_send_ns+0xda8/0xe10 [ 90.733645][ T17] ndisc_solicit+0x498/0x5d0 [ 90.738220][ T17] ? ndisc_cleanup+0x70/0x70 [ 90.742788][ T17] __neigh_event_send+0x10fd/0x1d40 [ 90.747977][ T17] ? ___neigh_create+0x2a81/0x2c40 [ 90.753074][ T17] neigh_resolve_output+0x25e/0xb50 [ 90.758274][ T17] ? neigh_event_ns+0x8a0/0x8a0 [ 90.763105][ T17] ip6_finish_output2+0x2129/0x2670 [ 90.768298][ T17] ? kmsan_get_shadow_origin_ptr+0x6e/0x4c0 [ 90.774171][ T17] __ip6_finish_output+0x83d/0x8f0 [ 90.779265][ T17] ip6_finish_output+0x2db/0x420 [ 90.784186][ T17] ip6_output+0x5d3/0x720 [ 90.788496][ T17] ? ip6_output+0x720/0x720 [ 90.792976][ T17] ? ac6_seq_show+0x200/0x200 [ 90.797630][ T17] ndisc_send_skb+0x1083/0x15e0 [ 90.802470][ T17] ? ndisc_error_report+0x1a0/0x1a0 [ 90.807650][ T17] ndisc_send_rs+0xb5d/0xb90 [ 90.812232][ T17] addrconf_dad_completed+0xc03/0x1490 [ 90.817690][ T17] addrconf_dad_work+0x17b3/0x26e0 [ 90.822799][ T17] ? kmsan_get_shadow_origin_ptr+0x6e/0x4c0 [ 90.828672][ T17] ? ipv6_get_saddr_eval+0x13b0/0x13b0 [ 90.834114][ T17] ? ipv6_get_saddr_eval+0x13b0/0x13b0 [ 90.839553][ T17] process_one_work+0x1572/0x1ef0 [ 90.844566][ T17] worker_thread+0x111b/0x2460 [ 90.849323][ T17] kthread+0x4b5/0x4f0 [ 90.853371][ T17] ? process_one_work+0x1ef0/0x1ef0 [ 90.858563][ T17] ? kthread_blkcg+0xf0/0xf0 [ 90.863137][ T17] ret_from_fork+0x35/0x40 [ 90.868917][ T17] Kernel Offset: disabled [ 90.873242][ T17] Rebooting in 86400 seconds..