Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 40.566252] audit: type=1800 audit(1576808035.875:33): pid=7556 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 45.320555] kauditd_printk_skb: 1 callbacks suppressed [ 45.320571] audit: type=1400 audit(1576808040.625:35): avc: denied { map } for pid=7731 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 225.835115] audit: type=1400 audit(1576808221.145:36): avc: denied { map } for pid=7739 comm="sh" path="/bin/dash" dev="sda1" ino=1473 scontext=system_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.224' (ECDSA) to the list of known hosts. [ 278.966382] audit: type=1400 audit(1576808274.275:37): avc: denied { map } for pid=7746 comm="syz-executor369" path="/root/syz-executor369220572" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 278.990651] IPVS: ftp: loaded support on port[0] = 21 [ 279.019763] audit: type=1400 audit(1576808274.325:38): avc: denied { create } for pid=7747 comm="syz-executor369" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 279.044656] audit: type=1400 audit(1576808274.325:39): avc: denied { write } for pid=7747 comm="syz-executor369" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 279.069413] audit: type=1400 audit(1576808274.325:40): avc: denied { read } for pid=7747 comm="syz-executor369" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 279.117500] chnl_net:caif_netlink_parms(): no params data found [ 279.150716] bridge0: port 1(bridge_slave_0) entered blocking state [ 279.157398] bridge0: port 1(bridge_slave_0) entered disabled state [ 279.164513] device bridge_slave_0 entered promiscuous mode [ 279.172053] bridge0: port 2(bridge_slave_1) entered blocking state [ 279.178510] bridge0: port 2(bridge_slave_1) entered disabled state [ 279.185504] device bridge_slave_1 entered promiscuous mode [ 279.201198] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 279.210511] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 279.226814] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 279.234221] team0: Port device team_slave_0 added [ 279.239919] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 279.247181] team0: Port device team_slave_1 added [ 279.252555] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 279.260195] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 279.317351] device hsr_slave_0 entered promiscuous mode [ 279.365027] device hsr_slave_1 entered promiscuous mode [ 279.405808] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 279.412876] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 279.427258] bridge0: port 2(bridge_slave_1) entered blocking state [ 279.433719] bridge0: port 2(bridge_slave_1) entered forwarding state [ 279.440786] bridge0: port 1(bridge_slave_0) entered blocking state [ 279.447162] bridge0: port 1(bridge_slave_0) entered forwarding state [ 279.480229] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 279.487399] 8021q: adding VLAN 0 to HW filter on device bond0 [ 279.496699] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 279.505660] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 279.524247] bridge0: port 1(bridge_slave_0) entered disabled state [ 279.531517] bridge0: port 2(bridge_slave_1) entered disabled state [ 279.539276] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 279.549660] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 279.556031] 8021q: adding VLAN 0 to HW filter on device team0 [ 279.575739] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 279.583524] bridge0: port 1(bridge_slave_0) entered blocking state [ 279.589929] bridge0: port 1(bridge_slave_0) entered forwarding state [ 279.606387] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 279.613968] bridge0: port 2(bridge_slave_1) entered blocking state [ 279.620355] bridge0: port 2(bridge_slave_1) entered forwarding state [ 279.628000] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 279.638418] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 279.648133] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 279.660784] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 279.670712] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 279.682709] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 279.689414] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 279.698061] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 279.705806] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 279.718059] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready executing program executing program [ 279.726943] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 279.733605] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 279.745786] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 279.758446] netlink: 24 bytes leftover after parsing attributes in process `syz-executor369'. [ 279.767456] sch_fq: defrate 0 ignored. executing program executing program executing program [ 279.776183] netlink: 24 bytes leftover after parsing attributes in process `syz-executor369'. [ 279.785589] sch_fq: defrate 0 ignored. [ 279.792885] netlink: 24 bytes leftover after parsing attributes in process `syz-executor369'. [ 279.801687] sch_fq: defrate 0 ignored. [ 279.810624] netlink: 24 bytes leftover after parsing attributes in process `syz-executor369'. [ 279.819452] sch_fq: defrate 0 ignored. executing program executing program executing program [ 279.827206] netlink: 24 bytes leftover after parsing attributes in process `syz-executor369'. [ 279.836318] sch_fq: defrate 0 ignored. [ 279.844168] netlink: 24 bytes leftover after parsing attributes in process `syz-executor369'. [ 279.853282] sch_fq: defrate 0 ignored. [ 279.861258] netlink: 24 bytes leftover after parsing attributes in process `syz-executor369'. [ 279.869998] sch_fq: defrate 0 ignored. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 279.877680] netlink: 24 bytes leftover after parsing attributes in process `syz-executor369'. [ 279.886446] sch_fq: defrate 0 ignored. [ 279.894348] netlink: 24 bytes leftover after parsing attributes in process `syz-executor369'. [ 279.903430] sch_fq: defrate 0 ignored. [ 279.910467] netlink: 24 bytes leftover after parsing attributes in process `syz-executor369'. [ 279.919327] sch_fq: defrate 0 ignored. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 386.344756] rcu: INFO: rcu_preempt self-detected stall on CPU [ 386.350891] rcu: 0-....: (1 GPs behind) idle=382/1/0x4000000000000002 softirq=11292/11298 fqs=5239 [ 386.360312] rcu: (t=10500 jiffies g=6085 q=205) [ 386.365145] NMI backtrace for cpu 0 [ 386.368759] CPU: 0 PID: 7749 Comm: kworker/0:3 Not tainted 4.19.90-syzkaller #0 [ 386.376228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 386.385687] Workqueue: ipv6_addrconf addrconf_dad_work [ 386.390966] Call Trace: [ 386.393547] [ 386.395759] dump_stack+0x197/0x210 [ 386.399389] nmi_cpu_backtrace.cold+0x63/0xa4 [ 386.403879] ? lapic_can_unplug_cpu.cold+0x47/0x47 [ 386.408796] nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 [ 386.414093] arch_trigger_cpumask_backtrace+0x14/0x20 [ 386.419316] rcu_dump_cpu_stacks+0x189/0x1d5 [ 386.423713] rcu_check_callbacks.cold+0x5e3/0xd90 [ 386.428542] ? trace_hardirqs_off+0x62/0x220 [ 386.432941] update_process_times+0x32/0x80 [ 386.437262] tick_sched_handle+0xa2/0x190 [ 386.441410] tick_sched_timer+0x47/0x130 [ 386.445458] __hrtimer_run_queues+0x33b/0xdc0 [ 386.449938] ? tick_sched_do_timer+0x1b0/0x1b0 [ 386.454507] ? hrtimer_fixup_activate+0x30/0x30 [ 386.459192] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 386.464201] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 386.469553] hrtimer_interrupt+0x314/0x770 [ 386.473832] smp_apic_timer_interrupt+0x111/0x550 [ 386.478676] apic_timer_interrupt+0xf/0x20 [ 386.482905] [ 386.485142] RIP: 0010:__sanitizer_cov_trace_pc+0x11/0x50 [ 386.490586] Code: 09 00 00 00 00 e9 96 e9 ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 40 ee 01 00 <65> 8b 15 78 a9 96 7e 81 e2 00 01 1f 00 75 2b 8b 90 d0 12 00 00 83 [ 386.509477] RSP: 0018:ffff888095b5f3e0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 386.517180] RAX: ffff888095698380 RBX: ffff888092272930 RCX: ffffffff85e32fd6 [ 386.524435] RDX: 0000000000000000 RSI: ffffffff85e3329b RDI: ffff888092272970 [ 386.531696] RBP: ffff888095b5f3e0 R08: ffff888095698380 R09: ffffffff8a0b1008 [ 386.538994] R10: ffffffff8a0b1010 R11: 0000000000000001 R12: dffffc0000000000 [ 386.546248] R13: 0000000000000000 R14: ffff888094ee6710 R15: ffff888094ee6480 [ 386.553591] ? fq_dequeue+0x636/0x1450 [ 386.557615] ? fq_dequeue+0x8fb/0x1450 [ 386.561507] fq_dequeue+0x8fb/0x1450 [ 386.565220] ? __call_rcu.constprop.0+0x2d2/0x830 [ 386.570106] __qdisc_run+0x1e5/0x19f0 [ 386.573921] __dev_queue_xmit+0x165c/0x2fe0 [ 386.578235] ? netdev_pick_tx+0x300/0x300 [ 386.582370] ? ip6_finish_output2+0xb30/0x2550 [ 386.586981] ? find_held_lock+0x35/0x130 [ 386.591028] ? ip6_finish_output2+0xb7f/0x2550 [ 386.595598] ? mark_held_locks+0xb1/0x100 [ 386.599744] dev_queue_xmit+0x18/0x20 [ 386.603529] ? dev_queue_xmit+0x18/0x20 [ 386.607530] neigh_resolve_output+0x5d2/0x9a0 [ 386.612016] ip6_finish_output2+0xb7f/0x2550 [ 386.616493] ? ip6_mtu+0x2e6/0x460 [ 386.620022] ? ip6_copy_metadata+0xd10/0xd10 [ 386.624418] ? lock_downgrade+0x880/0x880 [ 386.628562] ? kasan_check_read+0x11/0x20 [ 386.632697] ip6_finish_output+0x574/0xbe0 [ 386.636919] ? ip6_finish_output+0x574/0xbe0 [ 386.641314] ip6_output+0x235/0x7c0 [ 386.644927] ? ip6_finish_output+0xbe0/0xbe0 [ 386.649343] ? ip6_fragment+0x3770/0x3770 [ 386.653544] ndisc_send_skb+0xf3b/0x1460 [ 386.657617] ? nf_hook.constprop.0+0x560/0x560 [ 386.662218] ? memcpy+0x46/0x50 [ 386.665493] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 386.671023] ndisc_send_rs+0x136/0x6e0 [ 386.674903] addrconf_dad_completed+0x32e/0xbb0 [ 386.679568] ? addrconf_rs_timer+0x680/0x680 [ 386.683959] ? addrconf_dad_work+0x773/0x1110 [ 386.688439] ? addrconf_dad_work+0x773/0x1110 [ 386.692920] addrconf_dad_work+0x789/0x1110 [ 386.697227] ? addrconf_dad_work+0x789/0x1110 [ 386.701753] ? addrconf_dad_completed+0xbb0/0xbb0 [ 386.706590] process_one_work+0x989/0x1750 [ 386.710813] ? pwq_dec_nr_in_flight+0x320/0x320 [ 386.715467] ? lock_acquire+0x16f/0x3f0 [ 386.719429] ? kasan_check_write+0x14/0x20 [ 386.723645] ? do_raw_spin_lock+0xc8/0x240 [ 386.727875] worker_thread+0x98/0xe40 [ 386.731660] ? trace_hardirqs_on+0x67/0x220 [ 386.735991] kthread+0x354/0x420 [ 386.739352] ? process_one_work+0x1750/0x1750 [ 386.743829] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 386.749355] ret_from_fork+0x24/0x30