[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 46.141684][ T25] audit: type=1800 audit(1575398777.950:25): pid=8052 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 46.175225][ T25] audit: type=1800 audit(1575398777.950:26): pid=8052 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 46.209038][ T25] audit: type=1800 audit(1575398777.950:27): pid=8052 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 '10.128.1.29' (ECDSA) to the list of known hosts. 2019/12/03 18:46:30 fuzzer started 2019/12/03 18:46:32 dialing manager at 10.128.0.26:42111 2019/12/03 18:46:32 syscalls: 2689 2019/12/03 18:46:32 code coverage: enabled 2019/12/03 18:46:32 comparison tracing: enabled 2019/12/03 18:46:32 extra coverage: extra coverage is not supported by the kernel 2019/12/03 18:46:32 setuid sandbox: enabled 2019/12/03 18:46:32 namespace sandbox: enabled 2019/12/03 18:46:32 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 18:46:32 fault injection: enabled 2019/12/03 18:46:32 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 18:46:32 net packet injection: enabled 2019/12/03 18:46:32 net device setup: enabled 2019/12/03 18:46:32 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 18:46:32 devlink PCI setup: PCI device 0000:00:10.0 is not available 18:46:33 executing program 0: openat$dlm_control(0xffffffffffffff9c, &(0x7f00000001c0)='/dev/dlm-control\x00', 0x0, 0x0) ioctl$sock_inet_SIOCRTMSG(0xffffffffffffffff, 0x890d, &(0x7f0000000100)={0x0, {0x2, 0x0, @loopback}, {0x2, 0x0, @empty}, {0x2, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}}}) syz_mount_image$ext4(0x0, 0x0, 0x0, 0x1, &(0x7f00000007c0)=[{&(0x7f0000000580)="62f23e748cdfecc0d3bcb88248f9f8f8e87edc5637656d6e511dcdc6041c8d8a0957939950c15c7ac6360c7820e1d5957ba4167f17600b58767db91e29eb92a20f86dddfb0f8dda322d3ddeadba924051c7894f228f090746b1a55e851e7dcaae4d8411f6806d216b4f2e7eca231a301cc0c9bb4bb5598a94336a99790d3b77dcda45483c1fb1194c56ddfddb587442754e6c815", 0x94, 0x9}], 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) syz_mount_image$ext4(&(0x7f0000000080)='ext4\x00', &(0x7f0000000000)='./file0\x00', 0x0, 0xaaaaaaaaaaaab31, &(0x7f0000000100)=[{&(0x7f00000000c0)="800000003804000019000300e60100006c000000000000000100000001000000004000000040000080000000000000006d5ebe5a0000ffff53ef", 0x2c3, 0x400}], 0x1, 0x0) 18:46:33 executing program 1: syz_mount_image$msdos(&(0x7f0000000000)='msdos\x00', &(0x7f0000000040)='./file0\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)={[{@fat=@nfs_nostale_ro='nfs=nostale_ro'}]}) syzkaller login: [ 61.387187][ T8215] IPVS: ftp: loaded support on port[0] = 21 18:46:33 executing program 2: setsockopt$inet_sctp6_SCTP_DEFAULT_PRINFO(0xffffffffffffffff, 0x84, 0x10, 0x0, 0x0) r0 = socket$inet6(0xa, 0x1040000080806, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) bind$inet6(r0, &(0x7f000047b000)={0xa, 0xfc, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) [ 61.561403][ T8215] chnl_net:caif_netlink_parms(): no params data found [ 61.580222][ T8218] IPVS: ftp: loaded support on port[0] = 21 [ 61.668174][ T8215] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.678961][ T8215] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.696273][ T8215] device bridge_slave_0 entered promiscuous mode [ 61.726803][ T8215] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.733979][ T8215] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.746840][ T8215] device bridge_slave_1 entered promiscuous mode 18:46:33 executing program 3: mkdir(&(0x7f00000000c0)='./file0\x00', 0x0) mount$bpf(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000100)='bpf\x00', 0x0, &(0x7f0000000380)={[], [{@smackfsfloor={'smackfsfloor', 0x3d, 'bpf\x00'}}]}) [ 61.823308][ T8215] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.857341][ T8215] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.903401][ T8215] team0: Port device team_slave_0 added [ 61.910134][ T8218] chnl_net:caif_netlink_parms(): no params data found [ 61.924997][ T8222] IPVS: ftp: loaded support on port[0] = 21 [ 61.932782][ T8215] team0: Port device team_slave_1 added 18:46:33 executing program 4: syz_open_dev$sndctrl(&(0x7f00000000c0)='/dev/snd/controlC#\x00', 0x2, 0x0) syz_open_dev$dmmidi(&(0x7f0000000040)='/dev/dmmidi#\x00', 0x20, 0x0) [ 62.078172][ T8215] device hsr_slave_0 entered promiscuous mode [ 62.125685][ T8215] device hsr_slave_1 entered promiscuous mode [ 62.206815][ T8224] IPVS: ftp: loaded support on port[0] = 21 [ 62.217177][ T8218] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.224303][ T8218] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.234346][ T8226] IPVS: ftp: loaded support on port[0] = 21 [ 62.246460][ T8218] device bridge_slave_0 entered promiscuous mode [ 62.271330][ T8218] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.281205][ T8218] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.289178][ T8218] device bridge_slave_1 entered promiscuous mode 18:46:34 executing program 5: mknod$loop(&(0x7f0000000080)='./file0\x00', 0x0, 0xffffffffffffffff) mount(&(0x7f0000000040)=@md0='/dev/md0\x00', &(0x7f00000000c0)='./file0\x00', &(0x7f0000000140)='bfs\x00', 0x0, 0x0) [ 62.346331][ T8215] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.411475][ T8218] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.427029][ T8218] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.443135][ T8215] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.500727][ T8215] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.567091][ T8228] IPVS: ftp: loaded support on port[0] = 21 [ 62.573697][ T8215] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.612918][ T8218] team0: Port device team_slave_0 added [ 62.642316][ T8218] team0: Port device team_slave_1 added [ 62.663678][ T8222] chnl_net:caif_netlink_parms(): no params data found [ 62.757632][ T8218] device hsr_slave_0 entered promiscuous mode [ 62.805487][ T8218] device hsr_slave_1 entered promiscuous mode [ 62.865241][ T8218] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.951658][ T8226] chnl_net:caif_netlink_parms(): no params data found [ 62.974058][ T8224] chnl_net:caif_netlink_parms(): no params data found [ 62.991230][ T8222] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.001362][ T8222] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.009169][ T8222] device bridge_slave_0 entered promiscuous mode [ 63.060188][ T8222] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.067912][ T8222] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.075836][ T8222] device bridge_slave_1 entered promiscuous mode [ 63.082673][ T8218] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 63.160191][ T8218] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 63.220280][ T8218] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 63.277636][ T8228] chnl_net:caif_netlink_parms(): no params data found [ 63.309985][ T8218] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 63.399568][ T8222] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.413952][ T8222] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.459906][ T8226] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.469871][ T8226] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.477722][ T8226] device bridge_slave_0 entered promiscuous mode [ 63.485626][ T8226] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.492664][ T8226] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.501112][ T8226] device bridge_slave_1 entered promiscuous mode [ 63.518180][ T8228] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.525350][ T8228] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.532943][ T8228] device bridge_slave_0 entered promiscuous mode [ 63.541632][ T8222] team0: Port device team_slave_0 added [ 63.547942][ T8224] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.554982][ T8224] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.563160][ T8224] device bridge_slave_0 entered promiscuous mode [ 63.571700][ T8226] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.583919][ T8226] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.594374][ T8228] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.601543][ T8228] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.609141][ T8228] device bridge_slave_1 entered promiscuous mode [ 63.617450][ T8222] team0: Port device team_slave_1 added [ 63.626537][ T8224] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.633583][ T8224] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.641874][ T8224] device bridge_slave_1 entered promiscuous mode [ 63.669936][ T8224] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.699337][ T8224] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.717412][ T8228] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.729162][ T8226] team0: Port device team_slave_0 added [ 63.776742][ T8222] device hsr_slave_0 entered promiscuous mode [ 63.825390][ T8222] device hsr_slave_1 entered promiscuous mode [ 63.885176][ T8222] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.904965][ T8215] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.912707][ T8228] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.932418][ T8226] team0: Port device team_slave_1 added [ 63.950242][ T8224] team0: Port device team_slave_0 added [ 63.962070][ T8224] team0: Port device team_slave_1 added [ 63.969808][ T8228] team0: Port device team_slave_0 added [ 63.997059][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.004986][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.015732][ T8215] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.067820][ T8224] device hsr_slave_0 entered promiscuous mode [ 64.115507][ T8224] device hsr_slave_1 entered promiscuous mode [ 64.165250][ T8224] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.173692][ T8228] team0: Port device team_slave_1 added [ 64.180056][ T8222] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 64.307730][ T8228] device hsr_slave_0 entered promiscuous mode [ 64.345508][ T8228] device hsr_slave_1 entered promiscuous mode [ 64.385189][ T8228] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.392759][ T8222] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 64.448764][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.459182][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.467647][ T8220] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.474777][ T8220] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.482744][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.491335][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.499672][ T8220] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.506752][ T8220] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.557772][ T8226] device hsr_slave_0 entered promiscuous mode [ 64.615848][ T8226] device hsr_slave_1 entered promiscuous mode [ 64.675296][ T8226] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.700278][ T8222] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 64.747460][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.757321][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.774428][ T8215] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 64.785451][ T8215] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.817827][ T8222] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 64.847018][ T8233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.857274][ T8233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.866129][ T8233] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.874290][ T8233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.883090][ T8233] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.891514][ T8233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.899891][ T8233] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.909023][ T8233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.917264][ T8233] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.925967][ T8233] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.933581][ T8233] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.965736][ T8228] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 65.011249][ T8228] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 65.066612][ T8224] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 65.099152][ T8226] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 65.148827][ T8226] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 65.216721][ T8226] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 65.258149][ T8228] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 65.298116][ T8218] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.304896][ T8228] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 65.357847][ T8224] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 65.404560][ T8226] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 65.476693][ T8218] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.486343][ T8224] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 65.528847][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.536736][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.544242][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.551749][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.559276][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.568561][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.578268][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.585350][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.598988][ T8215] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.615389][ T8224] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 65.647579][ T3037] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.655906][ T3037] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.664344][ T3037] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.672909][ T3037] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.679960][ T3037] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.732371][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.748305][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.757877][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.766724][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.774892][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.783388][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.828934][ T8218] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 65.846799][ T8218] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.864579][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.875077][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.891360][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.899976][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.911121][ T8220] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.936235][ T8226] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.964778][ T8224] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.986069][ T8224] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.043578][ T8224] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 66.064320][ T8224] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 66.100981][ T8224] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 170.955088][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 170.961851][ C1] rcu: 1-...!: (10499 ticks this GP) idle=10e/1/0x4000000000000002 softirq=12164/12164 fqs=41 [ 170.972401][ C1] (t=10501 jiffies g=6417 q=489) [ 170.977413][ C1] rcu: rcu_preempt kthread starved for 10420 jiffies! g6417 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 170.988492][ C1] rcu: RCU grace-period kthread stack dump: [ 170.994362][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 171.002245][ C1] Call Trace: [ 171.005525][ C1] __schedule+0x9a0/0xcc0 [ 171.009847][ C1] schedule+0x181/0x210 [ 171.013994][ C1] schedule_timeout+0x14f/0x240 [ 171.018829][ C1] ? run_local_timers+0x120/0x120 [ 171.023839][ C1] rcu_gp_kthread+0xed8/0x1770 [ 171.028596][ C1] kthread+0x332/0x350 [ 171.032648][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 171.037762][ C1] ? kthread_blkcg+0xe0/0xe0 [ 171.042360][ C1] ret_from_fork+0x24/0x30 [ 171.046785][ C1] NMI backtrace for cpu 1 [ 171.051102][ C1] CPU: 1 PID: 8238 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0 [ 171.059317][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 171.069362][ C1] Call Trace: [ 171.072636][ C1] [ 171.075481][ C1] dump_stack+0x1fb/0x318 [ 171.079802][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 171.084638][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 171.090781][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 171.096834][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 171.102802][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 171.108684][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 171.113788][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 171.118977][ C1] ? trace_hardirqs_off+0x74/0x80 [ 171.123993][ C1] update_process_times+0x12d/0x180 [ 171.129184][ C1] tick_sched_timer+0x263/0x420 [ 171.134026][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 171.139559][ C1] __hrtimer_run_queues+0x403/0x840 [ 171.144757][ C1] hrtimer_interrupt+0x38c/0xda0 [ 171.149698][ C1] ? debug_smp_processor_id+0x9/0x20 [ 171.154970][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 171.160503][ C1] apic_timer_interrupt+0xf/0x20 [ 171.165421][ C1] [ 171.168345][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x2e/0x50 [ 171.174485][ C1] Code: 65 48 8b 0c 25 c0 1d 02 00 65 8b 15 b8 81 8b 7e f7 c2 00 01 1f 00 75 2c 8b 91 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 [ 171.194073][ C1] RSP: 0018:ffffc900029c76a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 171.202470][ C1] RAX: ffffffff81487433 RBX: 0000000000000000 RCX: ffff8880a019e040 [ 171.210429][ C1] RDX: ffffc90001f69000 RSI: 000000000003ffff RDI: 0000000000040000 [ 171.218382][ C1] RBP: ffffc900029c76c8 R08: 000000000003a768 R09: ffffed1014885eff [ 171.226339][ C1] R10: ffffed1014885eff R11: 0000000000000000 R12: dffffc0000000000 [ 171.234297][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880a442f7e8 [ 171.242262][ C1] ? mod_memcg_page_state+0x123/0x190 [ 171.247620][ C1] ? mod_memcg_page_state+0x123/0x190 [ 171.252978][ C1] free_thread_stack+0x168/0x590 [ 171.257901][ C1] put_task_stack+0xa3/0x130 [ 171.262476][ C1] finish_task_switch+0x3f1/0x550 [ 171.267489][ C1] __schedule+0x9a8/0xcc0 [ 171.271810][ C1] ? ___preempt_schedule+0x16/0x18 [ 171.276906][ C1] preempt_schedule+0xdb/0x120 [ 171.281682][ C1] ___preempt_schedule+0x16/0x18 [ 171.286623][ C1] try_to_wake_up+0xe78/0x1050 [ 171.291374][ C1] ? wake_up_state+0xb/0x10 [ 171.295865][ C1] wake_up_process+0x10/0x20 [ 171.300438][ C1] kthread_stop+0xf5/0x210 [ 171.304840][ C1] __loop_clr_fd+0x637/0x900 [ 171.309441][ C1] lo_ioctl+0x100e/0x2220 [ 171.313753][ C1] ? __kasan_slab_free+0x12a/0x1e0 [ 171.318845][ C1] ? kasan_slab_free+0xe/0x10 [ 171.323506][ C1] ? kfree+0x115/0x200 [ 171.327559][ C1] ? tomoyo_path_number_perm+0x4e1/0x640 [ 171.333175][ C1] ? tomoyo_file_ioctl+0x23/0x30 [ 171.338097][ C1] ? security_file_ioctl+0x6d/0xd0 [ 171.343190][ C1] ? __x64_sys_ioctl+0xa3/0x120 [ 171.348025][ C1] ? do_syscall_64+0xf7/0x1c0 [ 171.352683][ C1] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 171.358739][ C1] ? debug_check_no_obj_freed+0x505/0x5b0 [ 171.364458][ C1] ? rcu_lock_release+0x9/0x30 [ 171.369213][ C1] ? rcu_lock_release+0x9/0x30 [ 171.373962][ C1] ? lo_release+0x1f0/0x1f0 [ 171.378460][ C1] blkdev_ioctl+0x7f4/0x2ac0 [ 171.383040][ C1] ? tomoyo_path_number_perm+0x53e/0x640 [ 171.388675][ C1] block_ioctl+0xbd/0x100 [ 171.392985][ C1] ? blkdev_iopoll+0x100/0x100 [ 171.397735][ C1] do_vfs_ioctl+0x70b/0x1a30 [ 171.402309][ C1] ? __fget+0x441/0x510 [ 171.406456][ C1] ? tomoyo_file_ioctl+0x23/0x30 [ 171.411379][ C1] ? security_file_ioctl+0xa1/0xd0 [ 171.416475][ C1] __x64_sys_ioctl+0xe3/0x120 [ 171.421161][ C1] do_syscall_64+0xf7/0x1c0 [ 171.425663][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 171.431548][ C1] RIP: 0033:0x45a4e7 [ 171.435441][ C1] Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 171.455051][ C1] RSP: 002b:00007f1a57418a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 171.463455][ C1] RAX: ffffffffffffffda RBX: 00007f1a57418b40 RCX: 000000000045a4e7 [ 171.471414][ C1] RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000005 [ 171.479375][ C1] RBP: 0000000000000001 R08: 00007f1a57418b40 R09: 00007f1a57418ae0 [ 171.487329][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 171.495284][ C1] R13: 00000000004ca9eb R14: 00000000004e3e08 R15: 00000000ffffffff