[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 43.230684][ T25] audit: type=1800 audit(1575431368.999:25): pid=8011 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 43.250289][ T25] audit: type=1800 audit(1575431369.009:26): pid=8011 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 43.291565][ T25] audit: type=1800 audit(1575431369.009:27): pid=8011 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.15.218' (ECDSA) to the list of known hosts. 2019/12/04 03:49:39 fuzzer started 2019/12/04 03:49:40 dialing manager at 10.128.0.26:42111 2019/12/04 03:49:40 syscalls: 2689 2019/12/04 03:49:40 code coverage: enabled 2019/12/04 03:49:40 comparison tracing: enabled 2019/12/04 03:49:40 extra coverage: extra coverage is not supported by the kernel 2019/12/04 03:49:40 setuid sandbox: enabled 2019/12/04 03:49:40 namespace sandbox: enabled 2019/12/04 03:49:40 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 03:49:40 fault injection: enabled 2019/12/04 03:49:40 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 03:49:40 net packet injection: enabled 2019/12/04 03:49:40 net device setup: enabled 2019/12/04 03:49:40 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 03:49:40 devlink PCI setup: PCI device 0000:00:10.0 is not available 03:49:41 executing program 0: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000380)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) r1 = epoll_create1(0x0) r2 = socket(0x11, 0x800000003, 0x0) bind(r2, &(0x7f0000000080)=@generic={0x11, "0000010000000000080044944eeba71a4976e252922cb18f6e2e2aba000000012e0b3836005404b0e0301a4ce875f2e3ff5f163ee340b7679500800000000000000101013c5811039e15775027ecce66fd792bbf0e5bf5ff1b0816f3f6db1c00010000000000000049740000000000000006ad8e5ecc326d3a09ffc2c654"}, 0x80) dup2(r1, r2) 03:49:41 executing program 1: r0 = socket$inet(0x2, 0x200000002, 0x0) r1 = socket$l2tp(0x18, 0x1, 0x1) connect$l2tp(r1, &(0x7f0000000080)=@pppol2tpv3in6={0x18, 0x1, {0x0, r0, 0x0, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @mcast2}}}, 0x26) getsockname(r1, 0x0, &(0x7f0000002a80)) syzkaller login: [ 56.049950][ T8175] IPVS: ftp: loaded support on port[0] = 21 03:49:42 executing program 2: mkdir(&(0x7f0000000240)='./file1\x00', 0x0) mkdir(&(0x7f0000000180)='./bus\x00', 0x0) mkdir(&(0x7f0000000400)='./file0\x00', 0x0) mount$overlay(0x400000, &(0x7f0000000000)='./bus\x00', &(0x7f0000000100)='overlay\x00', 0x0, &(0x7f0000000280)=ANY=[@ANYBLOB='upperdir=./bus,workdir=./file1,lowerdir=./file0']) r0 = creat(&(0x7f00000005c0)='./bus/file0\x00', 0x0) ioctl$EXT4_IOC_SETFLAGS(r0, 0x40086602, 0x0) [ 56.194366][ T8178] IPVS: ftp: loaded support on port[0] = 21 [ 56.247619][ T8175] chnl_net:caif_netlink_parms(): no params data found [ 56.367118][ T8180] IPVS: ftp: loaded support on port[0] = 21 [ 56.393231][ T8175] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.400324][ T8175] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.409011][ T8175] device bridge_slave_0 entered promiscuous mode [ 56.445669][ T8175] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.453496][ T8175] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.461412][ T8175] device bridge_slave_1 entered promiscuous mode 03:49:42 executing program 3: bpf$PROG_LOAD(0x5, &(0x7f0000000440)={0x1, 0x4, &(0x7f0000000400)=@framed={{0xffffffb7, 0x0, 0x0, 0x0, 0x0, 0x57}, [@ldst={0x3fd}]}, &(0x7f0000000080)='GPL\x00', 0x3, 0x3f7, &(0x7f000000cf3d)=""/195}, 0x48) [ 56.536977][ T8178] chnl_net:caif_netlink_parms(): no params data found [ 56.559960][ T8175] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.607956][ T8175] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.628070][ T8183] IPVS: ftp: loaded support on port[0] = 21 [ 56.677802][ T8175] team0: Port device team_slave_0 added [ 56.717175][ T8175] team0: Port device team_slave_1 added [ 56.729593][ T8180] chnl_net:caif_netlink_parms(): no params data found [ 56.739051][ T8178] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.748064][ T8178] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.756149][ T8178] device bridge_slave_0 entered promiscuous mode [ 56.767067][ T8178] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.774213][ T8178] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.784707][ T8178] device bridge_slave_1 entered promiscuous mode 03:49:42 executing program 4: r0 = socket(0x40000000015, 0x5, 0x0) connect$inet(r0, &(0x7f00000000c0)={0x2, 0x0, @loopback}, 0x10) bind$inet(r0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) sendto$inet(r0, 0x0, 0x0, 0x0, 0x0, 0x0) close(r0) [ 56.867505][ T8175] device hsr_slave_0 entered promiscuous mode [ 56.924389][ T8175] device hsr_slave_1 entered promiscuous mode 03:49:42 executing program 5: r0 = socket$inet6(0xa, 0x80003, 0xff) ioctl(r0, 0x1000008912, &(0x7f0000000080)="0800b5055e0bcfe87b2071") r1 = socket$netlink(0x10, 0x3, 0x10) sendmsg$nl_generic(r1, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000340)={0x14, 0x29, 0x7, 0x0, 0x0, {0x1, 0xfffffffffffff000}}, 0x14}}, 0x0) [ 56.994639][ T8178] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.014465][ T8178] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.070007][ T8186] IPVS: ftp: loaded support on port[0] = 21 [ 57.123208][ T8180] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.130304][ T8180] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.141436][ T8180] device bridge_slave_0 entered promiscuous mode [ 57.171003][ T8175] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.227526][ T8180] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.234860][ T8180] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.243896][ T8180] device bridge_slave_1 entered promiscuous mode [ 57.252545][ T8178] team0: Port device team_slave_0 added [ 57.276330][ T8175] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.326353][ T8175] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.385866][ T8178] team0: Port device team_slave_1 added [ 57.392241][ T8175] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.464870][ T8180] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.479085][ T8180] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.497627][ T8183] chnl_net:caif_netlink_parms(): no params data found [ 57.506630][ T8189] IPVS: ftp: loaded support on port[0] = 21 [ 57.544653][ T8180] team0: Port device team_slave_0 added [ 57.593989][ T8178] device hsr_slave_0 entered promiscuous mode [ 57.641897][ T8178] device hsr_slave_1 entered promiscuous mode [ 57.681672][ T8178] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.725334][ T8180] team0: Port device team_slave_1 added [ 57.754233][ T8178] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 57.786117][ T8178] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 57.843897][ T8178] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.953216][ T8180] device hsr_slave_0 entered promiscuous mode [ 58.001878][ T8180] device hsr_slave_1 entered promiscuous mode [ 58.041632][ T8180] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.059838][ T8178] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 58.127376][ T8183] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.135359][ T8183] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.143171][ T8183] device bridge_slave_0 entered promiscuous mode [ 58.150630][ T8183] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.158455][ T8183] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.166458][ T8183] device bridge_slave_1 entered promiscuous mode [ 58.245978][ T8183] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.259071][ T8183] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.305787][ T8186] chnl_net:caif_netlink_parms(): no params data found [ 58.327013][ T8175] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.334753][ T8180] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 58.415364][ T8180] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 58.469851][ T8183] team0: Port device team_slave_0 added [ 58.477510][ T8183] team0: Port device team_slave_1 added [ 58.490891][ T8189] chnl_net:caif_netlink_parms(): no params data found [ 58.500606][ T8180] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 58.553748][ T8180] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 58.635773][ T8186] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.643169][ T8186] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.650802][ T8186] device bridge_slave_0 entered promiscuous mode [ 58.658092][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.667237][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.677002][ T8175] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.696454][ T8186] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.705216][ T8186] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.713087][ T8186] device bridge_slave_1 entered promiscuous mode [ 58.784358][ T8183] device hsr_slave_0 entered promiscuous mode [ 58.822206][ T8183] device hsr_slave_1 entered promiscuous mode [ 58.891963][ T8183] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.907685][ T8189] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.914788][ T8189] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.923224][ T8189] device bridge_slave_0 entered promiscuous mode [ 58.930806][ T8189] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.938722][ T8189] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.946731][ T8189] device bridge_slave_1 entered promiscuous mode [ 58.968775][ T8188] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.977684][ T8188] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.986596][ T8188] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.993750][ T8188] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.003005][ T8188] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.011872][ T8188] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.020129][ T8188] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.027211][ T8188] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.041017][ T8188] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.066032][ T8186] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.077337][ T8189] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.092494][ T8183] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.123377][ T8183] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.163876][ T8183] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.204708][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.214476][ T8186] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.236299][ T8189] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.252195][ T8183] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.295235][ T8186] team0: Port device team_slave_0 added [ 59.303534][ T8188] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.329444][ T8186] team0: Port device team_slave_1 added [ 59.339864][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.348594][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.357190][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.366846][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.379456][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.406608][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.415422][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.424165][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.438122][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.449117][ T8189] team0: Port device team_slave_0 added [ 59.457826][ T8178] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.466040][ T8175] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.513538][ T8186] device hsr_slave_0 entered promiscuous mode [ 59.561831][ T8186] device hsr_slave_1 entered promiscuous mode [ 59.611977][ T8186] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.620437][ T8189] team0: Port device team_slave_1 added [ 59.642872][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.650481][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.671281][ T8180] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.704603][ T8189] device hsr_slave_0 entered promiscuous mode [ 59.761984][ T8189] device hsr_slave_1 entered promiscuous mode [ 59.811906][ T8189] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.822698][ T3884] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.830115][ T3884] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.846078][ T8175] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.860924][ T8178] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.905048][ T8188] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.913413][ T8188] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.921080][ T8186] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 59.963260][ T8186] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 60.003218][ T8186] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 60.036566][ T8186] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 60.077253][ T8180] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.110099][ T8183] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.142030][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.150608][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.163462][ T8190] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.171145][ T8190] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.179620][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.188320][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.196660][ T8190] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.203722][ T8190] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.211261][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.219854][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.230331][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.238991][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.249032][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.257851][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.333683][ T8186] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.352529][ T8189] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 165.351512][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 165.358421][ C1] rcu: 1-...!: (1 GPs behind) idle=77e/1/0x4000000000000002 softirq=11425/11434 fqs=137 [ 165.368646][ C1] (t=10501 jiffies g=6269 q=444) [ 165.373675][ C1] rcu: rcu_preempt kthread starved for 10228 jiffies! g6269 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 165.384767][ C1] rcu: RCU grace-period kthread stack dump: [ 165.390673][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 165.398581][ C1] Call Trace: [ 165.401872][ C1] __schedule+0x9a0/0xcc0 [ 165.406222][ C1] schedule+0x181/0x210 [ 165.410385][ C1] schedule_timeout+0x14f/0x240 [ 165.415245][ C1] ? run_local_timers+0x120/0x120 [ 165.420266][ C1] rcu_gp_kthread+0xed8/0x1770 [ 165.425153][ C1] kthread+0x332/0x350 [ 165.429213][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 165.434328][ C1] ? kthread_blkcg+0xe0/0xe0 [ 165.438908][ C1] ret_from_fork+0x24/0x30 [ 165.443325][ C1] NMI backtrace for cpu 1 [ 165.447649][ C1] CPU: 1 PID: 8049 Comm: rsyslogd Not tainted 5.4.0-syzkaller #0 [ 165.455363][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.465419][ C1] Call Trace: [ 165.468695][ C1] [ 165.471538][ C1] dump_stack+0x1fb/0x318 [ 165.475864][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 165.480700][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 165.486836][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 165.492888][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 165.498854][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 165.504727][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 165.509828][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 165.515041][ C1] ? trace_hardirqs_off+0x74/0x80 [ 165.520067][ C1] update_process_times+0x12d/0x180 [ 165.525278][ C1] tick_sched_timer+0x263/0x420 [ 165.530128][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 165.535666][ C1] __hrtimer_run_queues+0x403/0x840 [ 165.540887][ C1] hrtimer_interrupt+0x38c/0xda0 [ 165.545843][ C1] ? debug_smp_processor_id+0x9/0x20 [ 165.551151][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 165.556699][ C1] apic_timer_interrupt+0xf/0x20 [ 165.561633][ C1] [ 165.564571][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x48/0x50 [ 165.570725][ C1] Code: 80 13 00 00 83 fa 02 75 21 48 8b 91 88 13 00 00 48 8b 32 48 8d 7e 01 8b 89 84 13 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89 3a 0f 1f 80 00 00 00 00 4c 8b 04 24 65 48 8b 04 25 c0 1d 02 00 65 [ 165.590338][ C1] RSP: 0018:ffffc90001b07a28 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 165.598756][ C1] RAX: ffffffff81487326 RBX: ffffea0002308240 RCX: ffff888090a5a580 [ 165.606731][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002308240 [ 165.614701][ C1] RBP: ffffc90001b07a50 R08: dffffc0000000000 R09: fffffbfff120248a [ 165.622677][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880a4524ca0 [ 165.630664][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff888098ae1428 [ 165.638660][ C1] ? mod_memcg_page_state+0x16/0x190 [ 165.643962][ C1] ? free_thread_stack+0x124/0x590 [ 165.649199][ C1] ? mod_memcg_page_state+0x16/0x190 [ 165.654492][ C1] free_thread_stack+0x168/0x590 [ 165.659423][ C1] put_task_stack+0xa3/0x130 [ 165.664024][ C1] finish_task_switch+0x3f1/0x550 [ 165.669060][ C1] __schedule+0x9a8/0xcc0 [ 165.673398][ C1] schedule+0x181/0x210 [ 165.677564][ C1] do_syslog+0xdc7/0x1740 [ 165.681897][ C1] ? init_wait_entry+0xe0/0xe0 [ 165.686670][ C1] kmsg_read+0x94/0xd0 [ 165.690731][ C1] ? mmap_vmcore_fault+0x10/0x10 [ 165.695658][ C1] proc_reg_read+0x1e2/0x2d0 [ 165.700245][ C1] ? proc_reg_llseek+0x2c0/0x2c0 [ 165.705183][ C1] __vfs_read+0xb8/0x730 [ 165.709418][ C1] ? security_file_permission+0x23c/0x350 [ 165.715125][ C1] ? rw_verify_area+0x1c2/0x360 [ 165.719964][ C1] vfs_read+0x1dd/0x420 [ 165.724112][ C1] ksys_read+0x117/0x220 [ 165.728348][ C1] __x64_sys_read+0x7b/0x90 [ 165.732845][ C1] do_syscall_64+0xf7/0x1c0 [ 165.737334][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.743214][ C1] RIP: 0033:0x7fc2f4ffe1fd [ 165.747616][ C1] Code: d1 20 00 00 75 10 b8 00 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 5e fa ff ff 48 89 04 24 b8 00 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 a7 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 165.767218][ C1] RSP: 002b:00007fc2f259de30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 [ 165.775639][ C1] RAX: ffffffffffffffda RBX: 00000000019cb650 RCX: 00007fc2f4ffe1fd [ 165.783610][ C1] RDX: 0000000000000fff RSI: 00007fc2f3dd25a0 RDI: 0000000000000004 [ 165.791570][ C1] RBP: 0000000000000000 R08: 00000000019b6260 R09: 0000000000000000 [ 165.799530][ C1] R10: 205b5d3038373839 R11: 0000000000000293 R12: 000000000065e420 [ 165.807487][ C1] R13: 00007fc2f259e9c0 R14: 00007fc2f5643040 R15: 0000000000000003