[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 43.198544][ T25] audit: type=1800 audit(1575365853.203:25): pid=8034 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 43.218725][ T25] audit: type=1800 audit(1575365853.203:26): pid=8034 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 43.239332][ T25] audit: type=1800 audit(1575365853.203:27): pid=8034 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 '10.128.15.225' (ECDSA) to the list of known hosts. 2019/12/03 09:37:43 fuzzer started 2019/12/03 09:37:45 dialing manager at 10.128.0.26:38907 2019/12/03 09:37:45 syscalls: 2697 2019/12/03 09:37:45 code coverage: enabled 2019/12/03 09:37:45 comparison tracing: enabled 2019/12/03 09:37:45 extra coverage: extra coverage is not supported by the kernel 2019/12/03 09:37:45 setuid sandbox: enabled 2019/12/03 09:37:45 namespace sandbox: enabled 2019/12/03 09:37:45 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 09:37:45 fault injection: enabled 2019/12/03 09:37:45 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 09:37:45 net packet injection: enabled 2019/12/03 09:37:45 net device setup: enabled 2019/12/03 09:37:45 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 09:37:45 devlink PCI setup: PCI device 0000:00:10.0 is not available 09:37:46 executing program 0: r0 = syz_init_net_socket$ax25(0x3, 0x5, 0x0) perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0x1f, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) setsockopt$ax25_SO_BINDTODEVICE(r0, 0x101, 0x8, &(0x7f0000000000)=@bpq0='bpq0\x00', 0x10) 09:37:46 executing program 1: r0 = syz_open_dev$evdev(&(0x7f00000009c0)='/dev/input/event#\x00', 0x0, 0x5) write$binfmt_elf64(r0, &(0x7f00000000c0)=ANY=[], 0xffffffe8) write$binfmt_aout(r0, 0x0, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000000300)={0x0, 0x12, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000340)) timer_settime(0x0, 0x0, &(0x7f00000001c0)={{0x0, 0x8}, {0x0, 0x1c9c380}}, 0x0) tkill(r1, 0x401004000000016) syzkaller login: [ 56.851595][ T8200] IPVS: ftp: loaded support on port[0] = 21 [ 56.989351][ T8200] chnl_net:caif_netlink_parms(): no params data found [ 57.032750][ T8200] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.042213][ T8200] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.050686][ T8200] device bridge_slave_0 entered promiscuous mode [ 57.060580][ T8200] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.068270][ T8200] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.077454][ T8200] device bridge_slave_1 entered promiscuous mode [ 57.102472][ T8200] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.116728][ T8200] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 09:37:47 executing program 2: r0 = socket(0x80000000000000a, 0x2, 0x0) setsockopt$inet6_group_source_req(r0, 0x29, 0x2a, &(0x7f0000000200)={0x0, {{0xa, 0x0, 0x0, @mcast1={0xff, 0x7}}}, {{0xa, 0x0, 0x0, @remote}}}, 0x108) setsockopt$inet6_group_source_req(r0, 0x29, 0x2b, &(0x7f0000000200)={0x0, {{0xa, 0x0, 0x0, @mcast1={0xff, 0x7}}}, {{0xa, 0x0, 0x0, @loopback}}}, 0x108) r1 = socket(0x80000000000000a, 0x2, 0x0) setsockopt$inet6_group_source_req(r1, 0x29, 0x2a, &(0x7f0000000080)={0x0, {{0xa, 0x0, 0x0, @mcast1={0xff, 0x7}}}, {{0xa, 0x0, 0x0, @remote}}}, 0x108) setsockopt$inet6_group_source_req(r1, 0x29, 0x2b, &(0x7f0000000200)={0x0, {{0xa, 0x0, 0x0, @mcast1={0xff, 0x7}}}, {{0xa, 0x0, 0x0, @remote}}}, 0x108) close(r0) [ 57.131897][ T8203] IPVS: ftp: loaded support on port[0] = 21 [ 57.144843][ T8200] team0: Port device team_slave_0 added [ 57.152148][ T8200] team0: Port device team_slave_1 added [ 57.236722][ T8200] device hsr_slave_0 entered promiscuous mode [ 57.285365][ T8200] device hsr_slave_1 entered promiscuous mode [ 57.348085][ T8205] IPVS: ftp: loaded support on port[0] = 21 09:37:47 executing program 3: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TCSETSW(r0, 0x5403, &(0x7f0000000000)={0x7fff}) ioctl$TIOCPKT(r0, 0x5420, &(0x7f0000000040)=0xffffffffffff9a25) ioctl$TCSETA(r0, 0x5404, &(0x7f0000000080)) [ 57.398987][ T8200] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.467206][ T8200] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.527807][ T8200] netdevsim netdevsim0 netdevsim2: renamed from eth2 09:37:47 executing program 4: prctl$PR_SET_SECUREBITS(0x1c, 0xf) r0 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r0, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) r2 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setresuid(r1, r3, 0xee01) open(&(0x7f0000000000)='./file0\x00', 0x82040, 0x0) [ 57.614456][ T8200] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.622815][ T8208] IPVS: ftp: loaded support on port[0] = 21 [ 57.737567][ T8203] chnl_net:caif_netlink_parms(): no params data found [ 57.770593][ T8200] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.777925][ T8200] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.785819][ T8200] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.792910][ T8200] bridge0: port 1(bridge_slave_0) entered forwarding state 09:37:47 executing program 5: r0 = socket$inet6_sctp(0xa, 0x5, 0x84) r1 = socket$inet6_sctp(0xa, 0x10000000005, 0x84) setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX(r1, 0x84, 0x6e, &(0x7f0000961fe4)=[@in={0x2, 0x0, @dev}], 0x10) getsockopt$inet_sctp6_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x1d, &(0x7f000095dff8)={0x1, [0x0]}, &(0x7f000095dffc)=0x8) setsockopt$inet_sctp6_SCTP_CONTEXT(r0, 0x84, 0x11, &(0x7f0000000000)={r2}, 0x8) [ 57.909417][ T8211] IPVS: ftp: loaded support on port[0] = 21 [ 57.926277][ T8203] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.933549][ T8203] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.955049][ T8203] device bridge_slave_0 entered promiscuous mode [ 58.015464][ T8203] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.022540][ T8203] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.031294][ T8203] device bridge_slave_1 entered promiscuous mode [ 58.067814][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.086578][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.109312][ T8203] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.120699][ T8203] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.149511][ T8203] team0: Port device team_slave_0 added [ 58.159408][ T8205] chnl_net:caif_netlink_parms(): no params data found [ 58.176803][ T8215] IPVS: ftp: loaded support on port[0] = 21 [ 58.183813][ T8203] team0: Port device team_slave_1 added [ 58.238697][ T8208] chnl_net:caif_netlink_parms(): no params data found [ 58.257339][ T8200] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.283550][ T8205] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.291011][ T8205] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.298917][ T8205] device bridge_slave_0 entered promiscuous mode [ 58.307193][ T8205] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.314825][ T8205] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.322810][ T8205] device bridge_slave_1 entered promiscuous mode [ 58.425867][ T8203] device hsr_slave_0 entered promiscuous mode [ 58.464415][ T8203] device hsr_slave_1 entered promiscuous mode [ 58.514341][ T8203] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.543142][ T8205] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.552614][ T8208] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.559920][ T8208] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.568041][ T8208] device bridge_slave_0 entered promiscuous mode [ 58.596477][ T8205] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.610417][ T8207] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.619404][ T8207] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.628335][ T8208] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.635944][ T8208] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.643656][ T8208] device bridge_slave_1 entered promiscuous mode [ 58.674754][ T8205] team0: Port device team_slave_0 added [ 58.683463][ T8205] team0: Port device team_slave_1 added [ 58.699947][ T8200] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.709205][ T8211] chnl_net:caif_netlink_parms(): no params data found [ 58.727681][ T8208] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.745148][ T8208] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.765258][ T8208] team0: Port device team_slave_0 added [ 58.776524][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.785478][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.793761][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.801000][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.811395][ T8203] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 58.859515][ T8203] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 58.918030][ T8208] team0: Port device team_slave_1 added [ 58.931427][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.940901][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.950287][ T8212] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.957736][ T8212] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.971206][ T8203] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.016419][ T8203] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 59.126930][ T8205] device hsr_slave_0 entered promiscuous mode [ 59.164683][ T8205] device hsr_slave_1 entered promiscuous mode [ 59.224315][ T8205] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.286927][ T8208] device hsr_slave_0 entered promiscuous mode [ 59.324929][ T8208] device hsr_slave_1 entered promiscuous mode [ 59.384268][ T8208] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.392071][ T8215] chnl_net:caif_netlink_parms(): no params data found [ 59.406627][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.415934][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.441332][ T8205] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 59.525676][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.537349][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.546261][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.555309][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.563653][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.572085][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.580774][ T8211] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.588320][ T8211] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.596578][ T8211] device bridge_slave_0 entered promiscuous mode [ 59.604594][ T8211] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.611806][ T8211] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.620331][ T8211] device bridge_slave_1 entered promiscuous mode [ 59.627900][ T8205] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 59.686780][ T8205] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 59.729667][ T8205] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 59.783073][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.824302][ T8211] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.834462][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.843263][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.860542][ T8208] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.910125][ T8208] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.966994][ T8211] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.976806][ T8215] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.983870][ T8215] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.991649][ T8215] device bridge_slave_0 entered promiscuous mode [ 60.000849][ T8215] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.008106][ T8215] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.016392][ T8215] device bridge_slave_1 entered promiscuous mode [ 60.035218][ T8215] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.049995][ T8208] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 60.112411][ T8208] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 60.167875][ T8215] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.182849][ T8200] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.205790][ T8211] team0: Port device team_slave_0 added [ 60.213287][ T8211] team0: Port device team_slave_1 added [ 60.228190][ T8215] team0: Port device team_slave_0 added [ 60.241812][ T8215] team0: Port device team_slave_1 added [ 60.307280][ T8211] device hsr_slave_0 entered promiscuous mode [ 60.335093][ T8211] device hsr_slave_1 entered promiscuous mode [ 60.384708][ T8211] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.421936][ T2708] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.429961][ T2708] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.506094][ T8215] device hsr_slave_0 entered promiscuous mode [ 60.554531][ T8215] device hsr_slave_1 entered promiscuous mode [ 60.604282][ T8215] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.613966][ T8200] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.633127][ T8203] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.677966][ T2708] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.691885][ T2708] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.718135][ T8205] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.729063][ T8211] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 60.766195][ T8211] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 60.809337][ T8211] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 60.876514][ T8215] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 60.916424][ T8215] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 60.957784][ T8203] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.998351][ T8208] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.012570][ T8211] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 166.024057][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 166.030869][ C1] rcu: 1-...!: (10499 ticks this GP) idle=1a6/1/0x4000000000000002 softirq=11452/11452 fqs=38 [ 166.041515][ C1] (t=10500 jiffies g=6293 q=82) [ 166.046454][ C1] rcu: rcu_preempt kthread starved for 10423 jiffies! g6293 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 166.057541][ C1] rcu: RCU grace-period kthread stack dump: [ 166.063415][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 166.071307][ C1] Call Trace: [ 166.074590][ C1] __schedule+0x9a0/0xcc0 [ 166.078918][ C1] schedule+0x181/0x210 [ 166.083068][ C1] schedule_timeout+0x14f/0x240 [ 166.087910][ C1] ? run_local_timers+0x120/0x120 [ 166.092927][ C1] rcu_gp_kthread+0xed8/0x1770 [ 166.097711][ C1] kthread+0x332/0x350 [ 166.101763][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 166.106880][ C1] ? kthread_blkcg+0xe0/0xe0 [ 166.111457][ C1] ret_from_fork+0x24/0x30 [ 166.115882][ C1] NMI backtrace for cpu 1 [ 166.120212][ C1] CPU: 1 PID: 8073 Comm: rsyslogd Not tainted 5.4.0-syzkaller #0 [ 166.128098][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 166.138148][ C1] Call Trace: [ 166.141423][ C1] [ 166.144271][ C1] dump_stack+0x1fb/0x318 [ 166.148589][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 166.153429][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 166.159573][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 166.165640][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 166.171608][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 166.177485][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 166.182587][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 166.187783][ C1] ? trace_hardirqs_off+0x74/0x80 [ 166.192798][ C1] update_process_times+0x12d/0x180 [ 166.197984][ C1] tick_sched_timer+0x263/0x420 [ 166.202825][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 166.208358][ C1] __hrtimer_run_queues+0x403/0x840 [ 166.213562][ C1] hrtimer_interrupt+0x38c/0xda0 [ 166.218743][ C1] ? debug_smp_processor_id+0x9/0x20 [ 166.224042][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 166.229580][ C1] apic_timer_interrupt+0xf/0x20 [ 166.234522][ C1] [ 166.237464][ C1] RIP: 0010:free_thread_stack+0x151/0x590 [ 166.243175][ C1] Code: 31 f6 e8 42 af 6e 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 43 a4 69 00 49 8b 1c 24 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 25 a4 69 00 48 8b 3b be fc ff ff ff e8 28 04 00 [ 166.262995][ C1] RSP: 0018:ffffc90001a47a60 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 166.271440][ C1] RAX: 1ffff11014c58ca1 RBX: ffff8880a62c6508 RCX: 0000000000000000 [ 166.279410][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002656c40 [ 166.287401][ C1] RBP: ffffc90001a47a98 R08: 000000000003a768 R09: ffffed101510ceb7 [ 166.295477][ C1] R10: ffffed101510ceb7 R11: 0000000000000000 R12: ffff8880a62c65a0 [ 166.303467][ C1] R13: dffffc0000000000 R14: 1ffff11014c58cb4 R15: ffff8880a88675a8 [ 166.311685][ C1] put_task_stack+0xa3/0x130 [ 166.316313][ C1] finish_task_switch+0x3f1/0x550 [ 166.321334][ C1] __schedule+0x9a8/0xcc0 [ 166.325665][ C1] schedule+0x181/0x210 [ 166.329816][ C1] do_syslog+0xdc7/0x1740 [ 166.334158][ C1] ? init_wait_entry+0xe0/0xe0 [ 166.338928][ C1] kmsg_read+0x94/0xd0 [ 166.342989][ C1] ? mmap_vmcore_fault+0x10/0x10 [ 166.347919][ C1] proc_reg_read+0x1e2/0x2d0 [ 166.352500][ C1] ? proc_reg_llseek+0x2c0/0x2c0 [ 166.357546][ C1] __vfs_read+0xb8/0x730 [ 166.361810][ C1] ? security_file_permission+0x23c/0x350 [ 166.367552][ C1] ? rw_verify_area+0x1c2/0x360 [ 166.372407][ C1] vfs_read+0x1dd/0x420 [ 166.378128][ C1] ksys_read+0x117/0x220 [ 166.382367][ C1] __x64_sys_read+0x7b/0x90 [ 166.386893][ C1] do_syscall_64+0xf7/0x1c0 [ 166.391412][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.397299][ C1] RIP: 0033:0x7f2a7ab211fd [ 166.401726][ 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 [ 166.421338][ C1] RSP: 002b:00007f2a780c0e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 [ 166.429761][ C1] RAX: ffffffffffffffda RBX: 0000000000bab170 RCX: 00007f2a7ab211fd [ 166.438030][ C1] RDX: 0000000000000fff RSI: 00007f2a798f55a0 RDI: 0000000000000004 [ 166.446001][ C1] RBP: 0000000000000000 R08: 0000000000b96260 R09: 0000000000000000 [ 166.454022][ C1] R10: 203a7463656a626f R11: 0000000000000293 R12: 000000000065e420 [ 166.462121][ C1] R13: 00007f2a780c19c0 R14: 00007f2a7b166040 R15: 0000000000000003