[ 47.254150][ T25] audit: type=1800 audit(1575364450.735:26): pid=8106 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 47.299919][ T25] audit: type=1800 audit(1575364450.735:27): pid=8106 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 47.321732][ T25] audit: type=1800 audit(1575364450.765:28): pid=8106 uid=0 auid=4294967295 ses=4294967295 subj=_ 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. [ 47.924528][ T25] audit: type=1800 audit(1575364451.425:29): pid=8106 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.42' (ECDSA) to the list of known hosts. 2019/12/03 09:14:19 fuzzer started 2019/12/03 09:14:21 dialing manager at 10.128.0.26:38907 2019/12/03 09:14:21 syscalls: 2697 2019/12/03 09:14:21 code coverage: enabled 2019/12/03 09:14:21 comparison tracing: enabled 2019/12/03 09:14:21 extra coverage: extra coverage is not supported by the kernel 2019/12/03 09:14:21 setuid sandbox: enabled 2019/12/03 09:14:21 namespace sandbox: enabled 2019/12/03 09:14:21 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 09:14:21 fault injection: enabled 2019/12/03 09:14:21 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 09:14:21 net packet injection: enabled 2019/12/03 09:14:21 net device setup: enabled 2019/12/03 09:14:21 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 09:14:21 devlink PCI setup: PCI device 0000:00:10.0 is not available 09:14:22 executing program 0: r0 = socket$inet6(0xa, 0x3, 0x6b) ioctl(r0, 0x1000008912, &(0x7f0000000000)="0815b5055e0bcfe87b3071") r1 = bpf$MAP_CREATE(0x0, &(0x7f00000002c0)={0xa, 0xc, 0x100000000000914, 0x1}, 0x2c) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000080)={r1, &(0x7f0000000000), &(0x7f0000000440)}, 0x20) bpf$MAP_LOOKUP_ELEM(0x1, &(0x7f0000000140)={r1, &(0x7f0000000000), &(0x7f0000000100)=""/25}, 0x18) 09:14:22 executing program 1: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) r3 = openat$fuse(0xffffffffffffff9c, &(0x7f00000002c0)='/dev/fuse\x00', 0x2, 0x0) mount$fuse(0x0, &(0x7f0000000200)='./file0\x00', &(0x7f0000000280)='fuse\x00', 0x0, &(0x7f0000000840)=ANY=[@ANYBLOB='fd=', @ANYRESHEX=r3, @ANYBLOB=',rootmode=00000000000000000040000,user_id=', @ANYRESDEC=0x0, @ANYBLOB=',group_id=', @ANYRESDEC=0x0]) listxattr(&(0x7f0000000000)='./file0\x00', 0x0, 0x2f) umount2(&(0x7f0000000040)='./file0\x00', 0x2) dup3(r2, r3, 0x0) syzkaller login: [ 59.105020][ T8268] IPVS: ftp: loaded support on port[0] = 21 09:14:22 executing program 2: r0 = syz_open_dev$evdev(&(0x7f0000000600)='/dev/input/event#\x00', 0x0, 0x0) ioctl$EVIOCGMASK(r0, 0x80104592, &(0x7f00000000c0)={0x0, 0x2, 0x0}) semget(0x3, 0x0, 0x0) [ 59.254878][ T8270] IPVS: ftp: loaded support on port[0] = 21 [ 59.291918][ T8268] chnl_net:caif_netlink_parms(): no params data found [ 59.434283][ T8273] IPVS: ftp: loaded support on port[0] = 21 [ 59.452785][ T8268] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.476364][ T8268] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.484536][ T8268] device bridge_slave_0 entered promiscuous mode [ 59.510269][ T8268] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.518695][ T8268] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.527509][ T8268] device bridge_slave_1 entered promiscuous mode [ 59.560686][ T8268] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.579738][ T8268] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 09:14:23 executing program 3: r0 = socket$inet_udplite(0x2, 0x2, 0x88) setsockopt$EBT_SO_SET_ENTRIES(r0, 0x0, 0x80, &(0x7f0000000080)=@nat={'%at\x00', 0x19, 0x1, 0x1a8, [0x200005c0, 0x0, 0x0, 0x200005f0, 0x20000620], 0x0, 0x0, &(0x7f00000005c0)=ANY=[@ANYBLOB="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"/424]}, 0x220) [ 59.619713][ T8268] team0: Port device team_slave_0 added [ 59.669860][ T8268] team0: Port device team_slave_1 added [ 59.809153][ T8268] device hsr_slave_0 entered promiscuous mode 09:14:23 executing program 4: r0 = socket$inet6_sctp(0xa, 0x80000000000001, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r0, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) connect$inet6(r0, &(0x7f00008c0000)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) sendmmsg(r0, &(0x7f000060d000)=[{{0x0, 0x0, &(0x7f0000c38ff0)=[{&(0x7f0000000080)='\x00', 0x1}], 0x1}}], 0x1, 0x8000) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) close(r0) [ 59.857722][ T8268] device hsr_slave_1 entered promiscuous mode [ 59.907223][ T8270] chnl_net:caif_netlink_parms(): no params data found [ 59.938072][ T8273] chnl_net:caif_netlink_parms(): no params data found [ 59.947487][ T8277] IPVS: ftp: loaded support on port[0] = 21 [ 60.084036][ T8270] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.101288][ T8270] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.114031][ T8270] device bridge_slave_0 entered promiscuous mode [ 60.129522][ T8268] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.188318][ T8273] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.195702][ T8273] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.210751][ T8273] device bridge_slave_0 entered promiscuous mode [ 60.221318][ T8270] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.229895][ T8270] bridge0: port 2(bridge_slave_1) entered disabled state 09:14:23 executing program 5: syz_mount_image$hfs(&(0x7f0000000000)='hfs\x00', &(0x7f0000000140)='./file0\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f0000000280)={[], [{@uid_eq={'uid', 0x3d, 0xffffffffffffffff}, 0x32}]}) [ 60.238052][ T8270] device bridge_slave_1 entered promiscuous mode [ 60.254056][ T8268] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.316408][ T8273] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.324229][ T8273] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.334093][ T8279] IPVS: ftp: loaded support on port[0] = 21 [ 60.347310][ T8273] device bridge_slave_1 entered promiscuous mode [ 60.367879][ T8268] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.430438][ T8268] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.459395][ T8270] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.491082][ T8270] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.502453][ T8282] IPVS: ftp: loaded support on port[0] = 21 [ 60.515664][ T8273] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.557724][ T8273] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.583309][ T8273] team0: Port device team_slave_0 added [ 60.592853][ T8273] team0: Port device team_slave_1 added [ 60.601871][ T8270] team0: Port device team_slave_0 added [ 60.641163][ T8270] team0: Port device team_slave_1 added [ 60.661374][ T8277] chnl_net:caif_netlink_parms(): no params data found [ 60.729177][ T8273] device hsr_slave_0 entered promiscuous mode [ 60.776625][ T8273] device hsr_slave_1 entered promiscuous mode [ 60.826548][ T8273] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.909349][ T8270] device hsr_slave_0 entered promiscuous mode [ 60.976680][ T8270] device hsr_slave_1 entered promiscuous mode [ 61.027271][ T8270] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.110282][ T8273] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 61.175446][ T8277] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.184882][ T8277] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.195434][ T8277] device bridge_slave_0 entered promiscuous mode [ 61.222194][ T8273] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 61.271373][ T8273] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 61.324944][ T8277] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.334662][ T8277] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.345147][ T8277] device bridge_slave_1 entered promiscuous mode [ 61.369471][ T8279] chnl_net:caif_netlink_parms(): no params data found [ 61.380049][ T8273] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.439876][ T8270] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 61.501488][ T8270] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 61.597583][ T8270] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 61.672084][ T8277] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.702528][ T8270] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 61.753235][ T8277] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.791125][ T8279] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.800282][ T8279] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.809146][ T8279] device bridge_slave_0 entered promiscuous mode [ 61.824067][ T8279] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.831741][ T8279] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.840896][ T8279] device bridge_slave_1 entered promiscuous mode [ 61.871941][ T8282] chnl_net:caif_netlink_parms(): no params data found [ 61.890750][ T8268] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.908158][ T8277] team0: Port device team_slave_0 added [ 61.923476][ T8279] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.945276][ T8277] team0: Port device team_slave_1 added [ 61.958811][ T8279] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.003367][ T8282] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.012467][ T8282] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.023470][ T8282] device bridge_slave_0 entered promiscuous mode [ 62.038406][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.048363][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.059302][ T8268] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.069795][ T8279] team0: Port device team_slave_0 added [ 62.091896][ T8282] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.100383][ T8282] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.113007][ T8282] device bridge_slave_1 entered promiscuous mode [ 62.128086][ T8279] team0: Port device team_slave_1 added [ 62.145710][ T8273] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.189965][ T8277] device hsr_slave_0 entered promiscuous mode [ 62.236675][ T8277] device hsr_slave_1 entered promiscuous mode [ 62.296415][ T8277] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.310439][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.320107][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.329798][ T3193] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.337082][ T3193] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.349834][ T8282] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.410455][ T8279] device hsr_slave_0 entered promiscuous mode [ 62.456700][ T8279] device hsr_slave_1 entered promiscuous mode [ 62.506517][ T8279] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.516422][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.530370][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.538982][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.548684][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.558862][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.568109][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.575547][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.587878][ T8282] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.610606][ T8273] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.640299][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.653435][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.673715][ T8282] team0: Port device team_slave_0 added [ 62.697752][ T8282] team0: Port device team_slave_1 added [ 62.710214][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.721000][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.729933][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.740968][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.752931][ T3355] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.761504][ T3355] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.787266][ T8277] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 62.851592][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.862057][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.871296][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.880648][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.890892][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.900802][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.910196][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.919783][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.931145][ T8268] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.942931][ T8277] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 63.010168][ T8279] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 63.048104][ T8279] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 63.101335][ T8279] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 63.150352][ T8277] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 63.199054][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.210820][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.219852][ T3355] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.228634][ T3355] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.278958][ T8282] device hsr_slave_0 entered promiscuous mode [ 63.327347][ T8282] device hsr_slave_1 entered promiscuous mode [ 63.366431][ T8282] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.385015][ T8279] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 63.430550][ T8277] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 63.528128][ T8282] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 63.562401][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.570501][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.580704][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.601174][ T8282] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 63.658660][ T8282] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 63.700276][ T8282] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 63.763725][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.775610][ T8268] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.789787][ T8270] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.814990][ T8273] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.827128][ T8273] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.852854][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.863739][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.873477][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.884164][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.894169][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.903651][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.913609][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.925246][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.935592][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.944625][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.002598][ T8273] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.014991][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.025553][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.034544][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.042717][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.053619][ T8270] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.079357][ T8277] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.117976][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.145107][ T3355] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 169.166234][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 169.173891][ C0] rcu: 0-...!: (10500 ticks this GP) idle=ce6/1/0x4000000000000002 softirq=11237/11237 fqs=40 [ 169.184514][ C0] (t=10501 jiffies g=6889 q=69) [ 169.189809][ C0] rcu: rcu_preempt kthread starved for 10422 jiffies! g6889 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 169.200992][ C0] rcu: RCU grace-period kthread stack dump: [ 169.206884][ C0] rcu_preempt R running task 29104 10 2 0x80004000 [ 169.214824][ C0] Call Trace: [ 169.218719][ C0] __schedule+0x9a0/0xcc0 [ 169.223052][ C0] schedule+0x181/0x210 [ 169.227551][ C0] schedule_timeout+0x14f/0x240 [ 169.232432][ C0] ? run_local_timers+0x120/0x120 [ 169.237540][ C0] rcu_gp_kthread+0xed8/0x1770 [ 169.242314][ C0] kthread+0x332/0x350 [ 169.246386][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 169.251499][ C0] ? kthread_blkcg+0xe0/0xe0 [ 169.256086][ C0] ret_from_fork+0x24/0x30 [ 169.260541][ C0] NMI backtrace for cpu 0 [ 169.264983][ C0] CPU: 0 PID: 8289 Comm: udevd Not tainted 5.4.0-syzkaller #0 [ 169.272421][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 169.282466][ C0] Call Trace: [ 169.285738][ C0] [ 169.288613][ C0] dump_stack+0x1fb/0x318 [ 169.293115][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 169.298052][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 169.304394][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 169.310457][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 169.316431][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 169.322497][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 169.327621][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 169.332825][ C0] ? trace_hardirqs_off+0x74/0x80 [ 169.338023][ C0] update_process_times+0x12d/0x180 [ 169.343236][ C0] tick_sched_timer+0x263/0x420 [ 169.348083][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 169.353667][ C0] __hrtimer_run_queues+0x403/0x840 [ 169.358889][ C0] hrtimer_interrupt+0x38c/0xda0 [ 169.363886][ C0] ? debug_smp_processor_id+0x9/0x20 [ 169.369171][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 169.374726][ C0] apic_timer_interrupt+0xf/0x20 [ 169.379652][ C0] [ 169.382605][ C0] RIP: 0010:free_thread_stack+0x16d/0x590 [ 169.388339][ C0] Code: 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 00 43 80 3c 2e 00 <74> 08 4c 89 e7 e8 09 a4 69 00 49 8b 1c 24 48 83 c3 08 48 89 d8 48 [ 169.407935][ C0] RSP: 0018:ffffc90002527758 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 169.416336][ C0] RAX: ffffffff81487433 RBX: ffff8880a7854688 RCX: ffff8880a9684540 [ 169.424561][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002a65940 [ 169.432522][ C0] RBP: ffffc90002527790 R08: dffffc0000000000 R09: fffffbfff120248a [ 169.440503][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880a7854720 [ 169.448464][ C0] R13: dffffc0000000000 R14: 1ffff11014f0a8e4 R15: ffff8880a8b8b6a8 [ 169.457311][ C0] ? mod_memcg_page_state+0x123/0x190 [ 169.462694][ C0] ? free_thread_stack+0x168/0x590 [ 169.467816][ C0] put_task_stack+0xa3/0x130 [ 169.472486][ C0] finish_task_switch+0x3f1/0x550 [ 169.477520][ C0] __schedule+0x9a8/0xcc0 [ 169.481851][ C0] preempt_schedule_irq+0xc1/0x140 [ 169.486957][ C0] retint_kernel+0x1b/0x2b [ 169.491384][ C0] RIP: 0010:tomoyo_condition+0x1c0d/0x2950 [ 169.497180][ C0] Code: 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ef e8 4a c9 5d fe 49 8b 5d 00 4c 89 7c 24 38 4c 01 fb 48 89 d8 48 c1 e8 03 42 8a 04 20 <84> c0 0f 85 a0 06 00 00 44 8a 23 41 0f b6 dc 31 ff 89 de e8 9b 54 [ 169.516894][ C0] RSP: 0018:ffffc900025279a0 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13 [ 169.525311][ C0] RAX: 1ffff1100d85b500 RBX: ffff88806c2daf3b RCX: ffff8880a9684540 [ 169.533272][ C0] RDX: 0000000000000000 RSI: 000000000000004b RDI: 000000000000005e [ 169.541233][ C0] RBP: ffffc90002527b18 R08: ffffffff83544ad4 R09: ffffffff8355e67c [ 169.549296][ C0] R10: ffff8880a9684540 R11: 0000000000000002 R12: dffffc0000000000 [ 169.557261][ C0] R13: ffff8880a3ad3918 R14: 0000000000000006 R15: 0000000000000f3b [ 169.565890][ C0] ? tomoyo_fill_path_info+0x9c/0x3a0 [ 169.571433][ C0] ? tomoyo_condition+0x1d14/0x2950 [ 169.576654][ C0] ? tomoyo_check_path_acl+0xfb/0x180 [ 169.582019][ C0] tomoyo_check_acl+0x17b/0x3a0 [ 169.586859][ C0] ? tomoyo_execute_permission+0x3f0/0x3f0 [ 169.592662][ C0] tomoyo_execute_permission+0x138/0x3f0 [ 169.598297][ C0] tomoyo_find_next_domain+0x3a7/0x1ca0 [ 169.604066][ C0] ? lock_acquire+0x158/0x250 [ 169.608755][ C0] ? rcu_lock_acquire+0x9/0x40 [ 169.613658][ C0] tomoyo_bprm_check_security+0xe3/0x130 [ 169.619424][ C0] security_bprm_check+0x55/0xb0 [ 169.624506][ C0] search_binary_handler+0x6a/0x660 [ 169.629814][ C0] ? rcu_lock_release+0x9/0x30 [ 169.634595][ C0] __do_execve_file+0x1573/0x1cd0 [ 169.639727][ C0] __x64_sys_execve+0x94/0xb0 [ 169.644414][ C0] do_syscall_64+0xf7/0x1c0 [ 169.648915][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 169.654825][ C0] RIP: 0033:0x7fd8ae250207 [ 169.659243][ C0] Code: 77 19 f4 48 89 d7 44 89 c0 0f 05 48 3d 00 f0 ff ff 76 e0 f7 d8 64 41 89 01 eb d8 f7 d8 64 41 89 01 eb df b8 3b 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 02 f3 c3 48 8b 15 00 8c 2d 00 f7 d8 64 89 02 [ 169.679212][ C0] RSP: 002b:00007fff9cf7d7f8 EFLAGS: 00000202 ORIG_RAX: 000000000000003b [ 169.687786][ C0] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007fd8ae250207 [ 169.696272][ C0] RDX: 0000000001783ad0 RSI: 00007fff9cf7d8f0 RDI: 00007fff9cf7e900 [ 169.704360][ C0] RBP: 0000000000625500 R08: 0000000000001eed R09: 0000000000001eed [ 169.712346][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000001783ad0 [ 169.720567][ C0] R13: 0000000000000007 R14: 0000000001782250 R15: 0000000000000005