[ 44.575530][ T23] audit: type=1800 audit(1575447568.594:26): pid=8125 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.619525][ T23] audit: type=1800 audit(1575447568.594:27): pid=8125 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 44.649677][ T23] audit: type=1800 audit(1575447568.594:28): pid=8125 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. [ 45.391805][ T23] audit: type=1800 audit(1575447569.424:29): pid=8125 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 '10.128.1.48' (ECDSA) to the list of known hosts. 2019/12/04 08:19:39 fuzzer started 2019/12/04 08:19:41 dialing manager at 10.128.0.26:36481 2019/12/04 08:19:41 syscalls: 2691 2019/12/04 08:19:41 code coverage: enabled 2019/12/04 08:19:41 comparison tracing: enabled 2019/12/04 08:19:41 extra coverage: extra coverage is not supported by the kernel 2019/12/04 08:19:41 setuid sandbox: enabled 2019/12/04 08:19:41 namespace sandbox: enabled 2019/12/04 08:19:41 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 08:19:41 fault injection: enabled 2019/12/04 08:19:41 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 08:19:41 net packet injection: enabled 2019/12/04 08:19:41 net device setup: enabled 2019/12/04 08:19:41 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 08:19:41 devlink PCI setup: PCI device 0000:00:10.0 is not available 08:19:42 executing program 0: ioctl$FS_IOC_RESVSP(0xffffffffffffffff, 0x40305828, &(0x7f00000000c0)={0x0, 0x0, 0x500000000}) clone(0x4000100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) socket(0x0, 0x0, 0x0) r0 = getpid() r1 = getpid() rt_tgsigqueueinfo(r0, r1, 0x13, &(0x7f0000000180)) ptrace(0x10, r0) ptrace$poke(0x4209, r0, &(0x7f00000000c0), 0x7fffffffefff) 08:19:42 executing program 1: perf_event_open(&(0x7f0000000100)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3c43, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffd, 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, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) wait4(0x0, 0x0, 0x0, 0x0) sendmsg$can_bcm(0xffffffffffffffff, &(0x7f0000000440)={&(0x7f0000000300), 0x10, 0x0}, 0x0) setsockopt$l2tp_PPPOL2TP_SO_REORDERTO(0xffffffffffffffff, 0x111, 0x5, 0x0, 0x4) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040)='TIPC\x00') sendmsg$TIPC_CMD_SHOW_LINK_STATS(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000100)={0x30, r1, 0x23f, 0x0, 0x0, {{}, 0x0, 0x410c, 0x0, {0x14, 0x14, 'broadcast-link\x0e'}}}, 0x30}}, 0x0) sendmsg$TIPC_CMD_GET_MEDIA_NAMES(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x80000) syz_open_procfs(0x0, 0x0) bind(0xffffffffffffffff, 0x0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) syzkaller login: [ 58.961476][ T8289] IPVS: ftp: loaded support on port[0] = 21 [ 59.053210][ T8291] IPVS: ftp: loaded support on port[0] = 21 [ 59.106838][ T8289] chnl_net:caif_netlink_parms(): no params data found [ 59.168970][ T8289] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.177928][ T8289] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.186212][ T8289] device bridge_slave_0 entered promiscuous mode 08:19:43 executing program 2: bpf$BPF_BTF_LOAD(0x12, &(0x7f0000000200)={&(0x7f0000000240)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x24, 0x24, 0x2, [@struct={0x0, 0x1, 0x0, 0x5, 0x3, 0x0, [{0x0, 0x2}]}, @enum={0x0, 0x0, 0x0, 0x5}]}}, &(0x7f00000002c0)=""/236, 0x3e, 0xec, 0x8}, 0x20) [ 59.210968][ T8289] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.219167][ T8289] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.228286][ T8289] device bridge_slave_1 entered promiscuous mode [ 59.317800][ T8289] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.337097][ T8295] IPVS: ftp: loaded support on port[0] = 21 [ 59.348478][ T8291] chnl_net:caif_netlink_parms(): no params data found [ 59.360069][ T8289] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.401440][ T8289] team0: Port device team_slave_0 added [ 59.435868][ T8289] team0: Port device team_slave_1 added 08:19:43 executing program 3: r0 = fsopen(&(0x7f0000000040)='tmpfs\x00', 0x0) fsconfig$FSCONFIG_CMD_RECONFIGURE(r0, 0x6, 0x0, 0x0, 0x0) fsmount(r0, 0x0, 0x0) fsconfig$FSCONFIG_SET_FLAG(r0, 0x0, &(0x7f00000000c0)='silent\x00', 0x0, 0x0) fsconfig$FSCONFIG_CMD_CREATE(r0, 0x7, 0x0, 0x0, 0x0) [ 59.456918][ T8291] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.468507][ T8291] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.476709][ T8291] device bridge_slave_0 entered promiscuous mode [ 59.507560][ T8291] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.516122][ T8291] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.524679][ T8291] device bridge_slave_1 entered promiscuous mode 08:19:43 executing program 4: r0 = syz_open_dev$video4linux(&(0x7f00000000c0)='/dev/v4l-subdev#\x00', 0x0, 0x0) ioctl$VIDIOC_SUBDEV_ENUM_FRAME_SIZE(r0, 0xc040564a, &(0x7f0000000000)={0x0, 0x0, 0x3012}) [ 59.672735][ T8289] device hsr_slave_0 entered promiscuous mode [ 59.740539][ T8289] device hsr_slave_1 entered promiscuous mode 08:19:43 executing program 5: r0 = socket$kcm(0xa, 0x2, 0x73) bind$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @loopback}, 0x69) connect(r0, &(0x7f0000000180)=@in6={0xa, 0x0, 0x0, @dev, 0x6}, 0x80) sendmmsg$inet_sctp(r0, &(0x7f0000000200)=[{&(0x7f0000000040)=@in6={0xa, 0x0, 0x0, @local}, 0x18, 0x0}], 0x1, 0x0) [ 59.895134][ T8299] IPVS: ftp: loaded support on port[0] = 21 [ 59.907303][ T8291] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.932171][ T8295] chnl_net:caif_netlink_parms(): no params data found [ 59.965452][ T8291] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.984461][ T8301] IPVS: ftp: loaded support on port[0] = 21 [ 60.035285][ T8291] team0: Port device team_slave_0 added [ 60.064421][ T8291] team0: Port device team_slave_1 added [ 60.085424][ T8295] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.093299][ T8295] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.100930][ T8295] device bridge_slave_0 entered promiscuous mode [ 60.108215][ T8289] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.153791][ T8289] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.203181][ T8289] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.320991][ T8291] device hsr_slave_0 entered promiscuous mode [ 60.369655][ T8291] device hsr_slave_1 entered promiscuous mode [ 60.409406][ T8291] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.417210][ T8295] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.424487][ T8295] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.432582][ T8295] device bridge_slave_1 entered promiscuous mode [ 60.460250][ T8289] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.468629][ T8303] IPVS: ftp: loaded support on port[0] = 21 [ 60.520417][ T8295] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.536268][ T8295] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.574567][ T8295] team0: Port device team_slave_0 added [ 60.581931][ T8295] team0: Port device team_slave_1 added [ 60.593078][ T8291] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 60.632176][ T8291] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 60.692897][ T8291] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 60.752768][ T8291] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 60.862079][ T8295] device hsr_slave_0 entered promiscuous mode [ 60.909586][ T8295] device hsr_slave_1 entered promiscuous mode [ 60.949765][ T8295] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.028870][ T8299] chnl_net:caif_netlink_parms(): no params data found [ 61.104384][ T8295] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 61.187594][ T8295] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 61.241205][ T8301] chnl_net:caif_netlink_parms(): no params data found [ 61.271385][ T8295] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 61.331133][ T8303] chnl_net:caif_netlink_parms(): no params data found [ 61.344185][ T8299] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.351641][ T8299] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.359165][ T8299] device bridge_slave_0 entered promiscuous mode [ 61.369829][ T8299] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.376915][ T8299] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.385151][ T8299] device bridge_slave_1 entered promiscuous mode [ 61.401328][ T8295] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.468334][ T8289] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.478432][ T8301] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.485674][ T8301] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.493937][ T8301] device bridge_slave_0 entered promiscuous mode [ 61.502532][ T8299] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.525805][ T8301] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.533504][ T8301] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.541589][ T8301] device bridge_slave_1 entered promiscuous mode [ 61.560373][ T8301] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.572298][ T8301] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.589385][ T8299] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.611209][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.619459][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.656592][ T8301] team0: Port device team_slave_0 added [ 61.663011][ T8303] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.670503][ T8303] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.678256][ T8303] device bridge_slave_0 entered promiscuous mode [ 61.687542][ T8303] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.694727][ T8303] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.702694][ T8303] device bridge_slave_1 entered promiscuous mode [ 61.717898][ T8291] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.733199][ T8289] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.743464][ T8301] team0: Port device team_slave_1 added [ 61.764061][ T8299] team0: Port device team_slave_0 added [ 61.772505][ T8299] team0: Port device team_slave_1 added [ 61.851119][ T8299] device hsr_slave_0 entered promiscuous mode [ 61.889621][ T8299] device hsr_slave_1 entered promiscuous mode [ 61.929370][ T8299] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.954598][ T8303] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.971184][ T8291] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.980188][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.988596][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.997520][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.004720][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.014195][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.023330][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.031824][ T49] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.038858][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.046475][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.055319][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.063347][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.071293][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.102287][ T8303] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.127209][ T8289] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 62.138275][ T8289] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.212198][ T8301] device hsr_slave_0 entered promiscuous mode [ 62.250250][ T8301] device hsr_slave_1 entered promiscuous mode [ 62.289466][ T8301] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.308034][ T8299] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 62.361383][ T8299] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 62.413568][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.422124][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.431253][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.439865][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.446893][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.454776][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.463746][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.472557][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.481383][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.489837][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.498080][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.506959][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.515268][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.524777][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.532749][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.541081][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.553970][ T8295] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.582514][ T8299] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 62.643321][ T8299] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 62.726354][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.735172][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.743950][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.751038][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.762204][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.771019][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.780262][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.788908][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.800741][ T8297] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.814588][ T8303] team0: Port device team_slave_0 added [ 62.841679][ T8303] team0: Port device team_slave_1 added [ 62.858161][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.867732][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.877312][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.885329][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.893497][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.902627][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.911271][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.918975][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.929552][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.938023][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.967034][ T8295] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.975861][ T8301] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 63.013175][ T8289] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.061366][ T8303] device hsr_slave_0 entered promiscuous mode [ 63.110466][ T8303] device hsr_slave_1 entered promiscuous mode [ 63.149513][ T8303] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.157995][ T8291] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.166756][ T8301] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 63.211916][ T8301] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 63.305539][ T8301] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 63.323929][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.332562][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.341142][ T3892] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.348175][ T3892] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.355856][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.364407][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.372993][ T3892] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.380263][ T3892] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.387846][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.396995][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.405717][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.414244][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.422525][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.431492][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.464482][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.474835][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.501380][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.511146][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.524708][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.533273][ T3892] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 168.509234][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 168.516077][ C1] rcu: 1-...!: (10499 ticks this GP) idle=b0a/1/0x4000000000000002 softirq=11476/11476 fqs=1 [ 168.526830][ C1] (t=10501 jiffies g=6441 q=38) [ 168.531906][ C1] rcu: rcu_preempt kthread starved for 10500 jiffies! g6441 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 168.543020][ C1] rcu: RCU grace-period kthread stack dump: [ 168.548915][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 168.556993][ C1] Call Trace: [ 168.560285][ C1] __schedule+0x9a0/0xcc0 [ 168.564613][ C1] schedule+0x181/0x210 [ 168.568755][ C1] schedule_timeout+0x14f/0x240 [ 168.573621][ C1] ? run_local_timers+0x120/0x120 [ 168.578635][ C1] rcu_gp_kthread+0xed8/0x1770 [ 168.583400][ C1] kthread+0x332/0x350 [ 168.587450][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 168.592549][ C1] ? kthread_blkcg+0xe0/0xe0 [ 168.597124][ C1] ret_from_fork+0x24/0x30 [ 168.601547][ C1] NMI backtrace for cpu 1 [ 168.605866][ C1] CPU: 1 PID: 8310 Comm: blkid Not tainted 5.4.0-syzkaller #0 [ 168.613300][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 168.623339][ C1] Call Trace: [ 168.626608][ C1] [ 168.629450][ C1] dump_stack+0x1fb/0x318 [ 168.633768][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 168.638605][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 168.644762][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 168.650814][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 168.656783][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 168.662660][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 168.667763][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 168.672950][ C1] ? trace_hardirqs_off+0x74/0x80 [ 168.677965][ C1] update_process_times+0x12d/0x180 [ 168.683157][ C1] tick_sched_timer+0x263/0x420 [ 168.687992][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 168.693530][ C1] __hrtimer_run_queues+0x403/0x840 [ 168.698728][ C1] hrtimer_interrupt+0x38c/0xda0 [ 168.703668][ C1] ? debug_smp_processor_id+0x9/0x20 [ 168.708944][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 168.714478][ C1] apic_timer_interrupt+0xf/0x20 [ 168.719402][ C1] [ 168.722332][ C1] RIP: 0010:__memcg_kmem_uncharge+0x0/0x1a0 [ 168.728307][ C1] Code: 00 eb 1b 83 3d 20 f1 8c 07 00 74 12 48 81 c3 08 02 00 00 48 89 df 4c 89 f6 e8 7c 87 ff ff 5b 41 5e 5d c3 0f 1f 80 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 50 89 f3 49 89 fc 48 b8 00 [ 168.747898][ C1] RSP: 0018:ffffc90001fa7ac0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 168.756296][ C1] RAX: ffffffff81486ea4 RBX: ffffea0002326c00 RCX: ffff888094d3c5c0 [ 168.764252][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002326c00 [ 168.772210][ C1] RBP: ffffc90001fa7b00 R08: 000000000003a728 R09: ffffed10131bdb07 [ 168.780169][ C1] R10: ffffed10131bdb07 R11: 0000000000000000 R12: ffff888092a5e620 [ 168.788125][ C1] R13: dffffc0000000000 R14: 1ffff1101254bcc4 R15: ffff888098ded828 [ 168.796095][ C1] ? free_thread_stack+0x124/0x590 [ 168.801199][ C1] ? free_thread_stack+0x12e/0x590 [ 168.806299][ C1] put_task_stack+0xa3/0x130 [ 168.810872][ C1] finish_task_switch+0x3f1/0x550 [ 168.815891][ C1] __schedule+0x9a8/0xcc0 [ 168.820228][ C1] preempt_schedule_irq+0xc1/0x140 [ 168.825324][ C1] retint_kernel+0x1b/0x2b [ 168.829823][ C1] RIP: 0010:cache_from_obj+0x3d/0x140 [ 168.835178][ C1] Code: 01 75 08 4c 89 f3 e9 d9 00 00 00 48 89 f7 e8 fa 68 85 ff 48 c1 e8 06 48 83 e0 c0 48 ba 00 00 00 00 00 ea ff ff 48 8b 4c 10 08 c1 01 0f 85 b9 00 00 00 48 01 d0 48 8b 48 08 48 89 c2 f6 c1 01 [ 168.854767][ C1] RSP: 0018:ffffc90001fa7d18 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 168.863163][ C1] RAX: 000000000268cf80 RBX: 0000000000000000 RCX: ffffea000268c648 [ 168.871120][ C1] RDX: ffffea0000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 168.879076][ C1] RBP: ffffc90001fa7d28 R08: ffffffff813705e0 R09: fffffbfff1287a8d [ 168.887034][ C1] R10: fffffbfff1287a8d R11: 0000000000000000 R12: ffff888094d3cd60 [ 168.894999][ C1] R13: ffff888094d3ccc0 R14: ffff8880aa9ec700 R15: ffff88809a33e600 [ 168.902969][ C1] ? __phys_addr+0x80/0x120 [ 168.907466][ C1] ? cache_from_obj+0x26/0x140 [ 168.912217][ C1] kmem_cache_free+0x13/0xf0 [ 168.916967][ C1] exit_fs+0x123/0x150 [ 168.921023][ C1] do_exit+0x57a/0x2020 [ 168.925172][ C1] ? check_preemption_disabled+0xb4/0x260 [ 168.930886][ C1] do_group_exit+0x15c/0x2b0 [ 168.935470][ C1] __do_sys_exit_group+0x17/0x20 [ 168.940403][ C1] __se_sys_exit_group+0x14/0x20 [ 168.945327][ C1] __x64_sys_exit_group+0x3b/0x40 [ 168.950342][ C1] do_syscall_64+0xf7/0x1c0 [ 168.954838][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 168.960714][ C1] RIP: 0033:0x7fac912681e8 [ 168.965143][ C1] Code: Bad RIP value. [ 168.969192][ C1] RSP: 002b:00007ffe29519758 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 168.977593][ C1] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fac912681e8 [ 168.985554][ C1] RDX: 0000000000000002 RSI: 000000000000003c RDI: 0000000000000002 [ 168.993515][ C1] RBP: 00007fac9153d840 R08: 00000000000000e7 R09: ffffffffffffffa8 [ 169.001472][ C1] R10: 00007fac91543740 R11: 0000000000000246 R12: 00007fac9153d840 [ 169.009429][ C1] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000