[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 72.626320][ T27] audit: type=1800 audit(1578298284.294:25): pid=9506 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 72.657721][ T27] audit: type=1800 audit(1578298284.294:26): pid=9506 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 72.702428][ T27] audit: type=1800 audit(1578298284.294:27): pid=9506 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 '10.128.0.165' (ECDSA) to the list of known hosts. syzkaller login: [ 87.488945][ T9657] IPVS: ftp: loaded support on port[0] = 21 [ 87.559948][ T9657] chnl_net:caif_netlink_parms(): no params data found [ 87.591864][ T9657] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.599653][ T9657] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.607542][ T9657] device bridge_slave_0 entered promiscuous mode [ 87.615357][ T9657] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.622700][ T9657] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.630882][ T9657] device bridge_slave_1 entered promiscuous mode [ 87.650550][ T9657] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 87.661454][ T9657] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 87.682201][ T9657] team0: Port device team_slave_0 added [ 87.690272][ T9657] team0: Port device team_slave_1 added [ 87.769565][ T9657] device hsr_slave_0 entered promiscuous mode [ 87.838171][ T9657] device hsr_slave_1 entered promiscuous mode [ 87.941230][ T9657] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 88.000248][ T9657] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 88.060272][ T9657] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 88.099797][ T9657] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 88.179510][ T9657] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.186844][ T9657] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.194754][ T9657] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.201830][ T9657] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.241952][ T9657] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.256958][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 88.267379][ T2672] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.285676][ T2672] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.294492][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 88.306931][ T9657] 8021q: adding VLAN 0 to HW filter on device team0 [ 88.318959][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 88.327599][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.334842][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.345751][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 88.355109][ T2672] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.362830][ T2672] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.388591][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 88.397343][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 88.409063][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 88.417378][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 88.429342][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 88.440332][ T9657] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 88.458932][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 88.466975][ T2672] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 88.480212][ T9657] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 88.499142][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 88.519840][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 88.529410][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 88.537321][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready executing program [ 88.549244][ T9657] device veth0_vlan entered promiscuous mode [ 88.562340][ T9657] device veth1_vlan entered promiscuous mode [ 88.580078][ T9657] netlink: 80 bytes leftover after parsing attributes in process `syz-executor557'. [ 88.591641][ T9657] netlink: 80 bytes leftover after parsing attributes in process `syz-executor557'. [ 88.637994][ T2672] divide error: 0000 [#1] PREEMPT SMP KASAN [ 88.643944][ T2672] CPU: 1 PID: 2672 Comm: kworker/1:2 Not tainted 5.5.0-rc4-syzkaller #0 [ 88.652252][ T2672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.662319][ T2672] Workqueue: ipv6_addrconf addrconf_dad_work [ 88.668287][ T2672] RIP: 0010:tabledist.part.0+0x13f/0x170 [ 88.673904][ T2672] Code: e8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 e8 78 5a 26 fb 48 81 eb 00 10 00 00 eb a5 e8 6a 5a 26 fb 43 8d 0c 24 44 89 f0 31 d2 f1 4d 29 e5 49 01 d5 eb c5 48 89 df e8 8f 0e 64 fb e9 0d ff ff [ 88.693499][ T2672] RSP: 0018:ffffc9000794f408 EFLAGS: 00010246 [ 88.699775][ T2672] RAX: 0000000010b1e961 RBX: 0000000000000000 RCX: 0000000000000000 [ 88.707728][ T2672] RDX: 0000000000000000 RSI: ffffffff864edd86 RDI: 0000000000000005 [ 88.715691][ T2672] RBP: ffffc9000794f430 R08: ffff8880a0aca540 R09: ffffed10130fc531 [ 88.723654][ T2672] R10: ffffed10130fc530 R11: ffff8880987e2987 R12: ffffffff80000000 [ 88.731704][ T2672] R13: 0000000000000000 R14: 0000000010b1e961 R15: ffff888096eea000 [ 88.740016][ T2672] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 88.748921][ T2672] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.755489][ T2672] CR2: 00000000004c7e88 CR3: 0000000099c1f000 CR4: 00000000001406e0 [ 88.763460][ T2672] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.771511][ T2672] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.779457][ T2672] Call Trace: [ 88.782724][ T2672] ? get_crandom+0x72/0x140 [ 88.787218][ T2672] netem_enqueue+0x416/0x2e10 [ 88.791875][ T2672] ? lock_acquire+0x190/0x410 [ 88.796535][ T2672] __dev_queue_xmit+0x152e/0x35c0 [ 88.801561][ T2672] ? __kasan_check_read+0x11/0x20 [ 88.806582][ T2672] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 88.811858][ T2672] ? ip6_finish_output2+0x109a/0x25c0 [ 88.817214][ T2672] ? __kasan_check_read+0x11/0x20 [ 88.822243][ T2672] ? mark_held_locks+0xa4/0xf0 [ 88.827001][ T2672] dev_queue_xmit+0x18/0x20 [ 88.831485][ T2672] ? dev_queue_xmit+0x18/0x20 [ 88.836140][ T2672] neigh_resolve_output+0x5c4/0x990 [ 88.841331][ T2672] ip6_finish_output2+0x109a/0x25c0 [ 88.846509][ T2672] ? ip6_frag_next+0xb20/0xb20 [ 88.851341][ T2672] ? lock_downgrade+0x920/0x920 [ 88.856192][ T2672] ? __kasan_check_read+0x11/0x20 [ 88.861248][ T2672] __ip6_finish_output+0x444/0xaa0 [ 88.866348][ T2672] ? __ip6_finish_output+0x444/0xaa0 [ 88.871616][ T2672] ip6_finish_output+0x38/0x1f0 [ 88.876446][ T2672] ip6_output+0x25e/0x880 [ 88.880758][ T2672] ? ip6_finish_output+0x1f0/0x1f0 [ 88.886830][ T2672] ? __ip6_finish_output+0xaa0/0xaa0 [ 88.892100][ T2672] ndisc_send_skb+0xf1f/0x1490 [ 88.896845][ T2672] ? nf_hook.constprop.0+0x560/0x560 [ 88.902113][ T2672] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.908335][ T2672] ? skb_set_owner_w+0x265/0x410 [ 88.913255][ T2672] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 88.918966][ T2672] ndisc_send_ns+0x3a9/0x850 [ 88.923556][ T2672] ? mark_held_locks+0xa4/0xf0 [ 88.928374][ T2672] ? ndisc_netdev_event+0x5e0/0x5e0 [ 88.933578][ T2672] ? lockdep_hardirqs_on+0x421/0x5e0 [ 88.938849][ T2672] ? addrconf_dad_work+0xb2c/0x11d0 [ 88.944294][ T2672] ? trace_hardirqs_on+0x67/0x240 [ 88.949312][ T2672] ? addrconf_dad_work+0xb2c/0x11d0 [ 88.954500][ T2672] addrconf_dad_work+0xbf3/0x11d0 [ 88.959516][ T2672] ? addrconf_dad_completed+0xbb0/0xbb0 [ 88.965041][ T2672] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 88.971001][ T2672] ? trace_hardirqs_on+0x67/0x240 [ 88.976014][ T2672] process_one_work+0x9af/0x1740 [ 88.984002][ T2672] ? pwq_dec_nr_in_flight+0x320/0x320 [ 88.989399][ T2672] ? lock_acquire+0x190/0x410 [ 88.994069][ T2672] worker_thread+0x98/0xe40 [ 88.998566][ T2672] kthread+0x361/0x430 [ 89.002639][ T2672] ? process_one_work+0x1740/0x1740 [ 89.007817][ T2672] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 89.013537][ T2672] ret_from_fork+0x24/0x30 [ 89.017935][ T2672] Modules linked in: [ 89.021948][ T2672] ---[ end trace e593725f26e5d728 ]--- [ 89.027444][ T2672] RIP: 0010:tabledist.part.0+0x13f/0x170 [ 89.033070][ T2672] Code: e8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 e8 78 5a 26 fb 48 81 eb 00 10 00 00 eb a5 e8 6a 5a 26 fb 43 8d 0c 24 44 89 f0 31 d2 f1 4d 29 e5 49 01 d5 eb c5 48 89 df e8 8f 0e 64 fb e9 0d ff ff [ 89.052760][ T2672] RSP: 0018:ffffc9000794f408 EFLAGS: 00010246 [ 89.058924][ T2672] RAX: 0000000010b1e961 RBX: 0000000000000000 RCX: 0000000000000000 [ 89.066981][ T2672] RDX: 0000000000000000 RSI: ffffffff864edd86 RDI: 0000000000000005 [ 89.074991][ T2672] RBP: ffffc9000794f430 R08: ffff8880a0aca540 R09: ffffed10130fc531 [ 89.082979][ T2672] R10: ffffed10130fc530 R11: ffff8880987e2987 R12: ffffffff80000000 [ 89.090968][ T2672] R13: 0000000000000000 R14: 0000000010b1e961 R15: ffff888096eea000 [ 89.098952][ T2672] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 89.107933][ T2672] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.114507][ T2672] CR2: 00000000004c7e88 CR3: 0000000099c1f000 CR4: 00000000001406e0 [ 89.122522][ T2672] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.130520][ T2672] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.138516][ T2672] Kernel panic - not syncing: Fatal exception in interrupt [ 89.147087][ T2672] Kernel Offset: disabled [ 89.151415][ T2672] Rebooting in 86400 seconds..