[ 69.298615][ T26] audit: type=1800 audit(1564892334.807:27): pid=10076 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 69.298638][ T26] audit: type=1800 audit(1564892334.807:28): pid=10076 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 70.047062][ T26] audit: type=1800 audit(1564892335.607:29): pid=10076 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 70.070970][ T26] audit: type=1800 audit(1564892335.607:30): pid=10076 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.233' (ECDSA) to the list of known hosts. 2019/08/04 04:32:21 parsed 1 programs 2019/08/04 04:32:22 executed programs: 0 syzkaller login: [ 877.212638][T10244] IPVS: ftp: loaded support on port[0] = 21 [ 877.264664][T10244] chnl_net:caif_netlink_parms(): no params data found [ 877.287263][T10244] bridge0: port 1(bridge_slave_0) entered blocking state [ 877.295134][T10244] bridge0: port 1(bridge_slave_0) entered disabled state [ 877.302798][T10244] device bridge_slave_0 entered promiscuous mode [ 877.310051][T10244] bridge0: port 2(bridge_slave_1) entered blocking state [ 877.317454][T10244] bridge0: port 2(bridge_slave_1) entered disabled state [ 877.325691][T10244] device bridge_slave_1 entered promiscuous mode [ 877.339255][T10244] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 877.351074][T10244] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 877.368259][T10244] team0: Port device team_slave_0 added [ 877.375685][T10244] team0: Port device team_slave_1 added [ 877.423000][T10244] device hsr_slave_0 entered promiscuous mode [ 877.471671][T10244] device hsr_slave_1 entered promiscuous mode [ 877.517796][T10244] bridge0: port 2(bridge_slave_1) entered blocking state [ 877.525097][T10244] bridge0: port 2(bridge_slave_1) entered forwarding state [ 877.532660][T10244] bridge0: port 1(bridge_slave_0) entered blocking state [ 877.539988][T10244] bridge0: port 1(bridge_slave_0) entered forwarding state [ 877.567493][T10244] 8021q: adding VLAN 0 to HW filter on device bond0 [ 877.578816][T10247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 877.588659][T10247] bridge0: port 1(bridge_slave_0) entered disabled state [ 877.597029][T10247] bridge0: port 2(bridge_slave_1) entered disabled state [ 877.604897][T10247] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 877.615697][T10244] 8021q: adding VLAN 0 to HW filter on device team0 [ 877.625504][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 877.634045][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 877.641269][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 877.651436][T10247] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 877.660197][T10247] bridge0: port 2(bridge_slave_1) entered blocking state [ 877.667394][T10247] bridge0: port 2(bridge_slave_1) entered forwarding state [ 877.684074][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 877.692937][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 877.703664][T10247] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 877.716460][T10244] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 877.727851][T10244] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 877.739935][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 877.749124][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 877.757613][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 877.773623][T10244] 8021q: adding VLAN 0 to HW filter on device batadv0 2019/08/04 04:32:27 executed programs: 30 2019/08/04 04:32:32 executed programs: 64 2019/08/04 04:32:37 executed programs: 96 2019/08/04 04:32:42 executed programs: 128 2019/08/04 04:32:47 executed programs: 161 2019/08/04 04:32:53 executed programs: 194 2019/08/04 04:32:58 executed programs: 226 2019/08/04 04:33:03 executed programs: 260 2019/08/04 04:33:08 executed programs: 294 2019/08/04 04:33:13 executed programs: 327 2019/08/04 04:33:18 executed programs: 362 2019/08/04 04:33:23 executed programs: 395 2019/08/04 04:33:28 executed programs: 429 2019/08/04 04:33:33 executed programs: 461 2019/08/04 04:33:38 executed programs: 495 2019/08/04 04:33:43 executed programs: 530 2019/08/04 04:33:48 executed programs: 563 2019/08/04 04:33:53 executed programs: 596 2019/08/04 04:33:59 executed programs: 633 2019/08/04 04:34:04 executed programs: 667 2019/08/04 04:34:09 executed programs: 701 [ 1130.871402][ T1057] INFO: task syz-executor.0:14268 blocked for more than 143 seconds. [ 1130.879595][ T1057] Not tainted 5.3.0-rc2+ #95 [ 1130.884817][ T1057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1130.893734][ T1057] syz-executor.0 D29032 14268 10244 0x00000006 [ 1130.900122][ T1057] Call Trace: [ 1130.903539][ T1057] __schedule+0x755/0x1580 [ 1130.907981][ T1057] ? __sched_text_start+0x8/0x8 [ 1130.912926][ T1057] ? prepare_to_wait_event+0x12b/0x730 [ 1130.918438][ T1057] schedule+0xa8/0x270 [ 1130.922922][ T1057] perf_event_free_task+0x50d/0x6d0 [ 1130.928166][ T1057] ? perf_event_exit_task+0xbc0/0xbc0 [ 1130.933688][ T1057] ? init_wait_var_entry+0x1b0/0x1b0 [ 1130.939017][ T1057] copy_process+0x45d4/0x6b00 [ 1130.944029][ T1057] ? __cleanup_sighand+0x60/0x60 [ 1130.949005][ T1057] _do_fork+0x146/0xfa0 [ 1130.953273][ T1057] ? copy_init_mm+0x20/0x20 [ 1130.957913][ T1057] ? __kasan_check_read+0x11/0x20 [ 1130.963153][ T1057] ? _copy_to_user+0x118/0x160 [ 1130.967961][ T1057] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 1130.974412][ T1057] ? put_timespec64+0xda/0x140 [ 1130.979315][ T1057] __x64_sys_clone+0x18d/0x250 [ 1130.984180][ T1057] ? __ia32_sys_vfork+0xc0/0xc0 [ 1130.989193][ T1057] ? trace_hardirqs_off_caller+0x65/0x230 [ 1130.995119][ T1057] ? trace_hardirqs_on+0x67/0x240 [ 1131.000420][ T1057] do_syscall_64+0xfd/0x6a0 [ 1131.005406][ T1057] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1131.011546][ T1057] RIP: 0033:0x459829 [ 1131.015460][ T1057] Code: dd fe ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc 64 48 8b 0c 25 f8 ff ff ff 48 3b 61 10 76 68 48 83 ec 28 48 89 6c 24 20 48 <8d> 6c 24 20 48 8b 44 24 30 48 89 04 24 48 8b 4c 24 38 48 89 4c 24 [ 1131.035894][ T1057] RSP: 002b:00007f788bc53c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 1131.044426][ T1057] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000459829 [ 1131.053598][ T1057] RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0000002102001ffe [ 1131.062039][ T1057] RBP: 000000000075bf20 R08: ffffffffffffffff R09: 0000000000000000 [ 1131.070178][ T1057] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f788bc546d4 [ 1131.078367][ T1057] R13: 00000000004bfce6 R14: 00000000004d1998 R15: 00000000ffffffff [ 1131.086597][ T1057] INFO: lockdep is turned off. [ 1131.091447][ T1057] NMI backtrace for cpu 0 [ 1131.095809][ T1057] CPU: 0 PID: 1057 Comm: khungtaskd Not tainted 5.3.0-rc2+ #95 [ 1131.103543][ T1057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1131.113634][ T1057] Call Trace: [ 1131.117084][ T1057] dump_stack+0x172/0x1f0 [ 1131.121413][ T1057] nmi_cpu_backtrace.cold+0x70/0xb2 [ 1131.126721][ T1057] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1131.132971][ T1057] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 1131.138739][ T1057] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 1131.144749][ T1057] arch_trigger_cpumask_backtrace+0x14/0x20 [ 1131.150749][ T1057] watchdog+0x9d0/0xef0 [ 1131.154915][ T1057] kthread+0x361/0x430 [ 1131.159013][ T1057] ? reset_hung_task_detector+0x30/0x30 [ 1131.164564][ T1057] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 1131.171063][ T1057] ret_from_fork+0x24/0x30 [ 1131.175735][ T1057] Sending NMI from CPU 0 to CPUs 1: [ 1131.181043][ C1] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xe/0x10 [ 1131.182336][ T1057] Kernel panic - not syncing: hung_task: blocked tasks [ 1131.196367][ T1057] CPU: 0 PID: 1057 Comm: khungtaskd Not tainted 5.3.0-rc2+ #95 [ 1131.203903][ T1057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1131.214113][ T1057] Call Trace: [ 1131.217412][ T1057] dump_stack+0x172/0x1f0 [ 1131.221758][ T1057] panic+0x2dc/0x755 [ 1131.225748][ T1057] ? add_taint.cold+0x16/0x16 [ 1131.230452][ T1057] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 1131.236114][ T1057] ? ___preempt_schedule+0x16/0x20 [ 1131.241236][ T1057] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 1131.247408][ T1057] ? nmi_trigger_cpumask_backtrace+0x24c/0x28b [ 1131.253572][ T1057] ? nmi_trigger_cpumask_backtrace+0x256/0x28b [ 1131.259918][ T1057] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 1131.266085][ T1057] watchdog+0x9e1/0xef0 [ 1131.270249][ T1057] kthread+0x361/0x430 [ 1131.274467][ T1057] ? reset_hung_task_detector+0x30/0x30 [ 1131.280023][ T1057] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 1131.286376][ T1057] ret_from_fork+0x24/0x30 [ 1131.292129][ T1057] Kernel Offset: disabled [ 1131.296470][ T1057] Rebooting in 86400 seconds..