[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 54.654606][ T26] audit: type=1800 audit(1578472417.320:25): pid=8464 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 54.673396][ T26] audit: type=1800 audit(1578472417.330:26): pid=8464 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 54.694159][ T26] audit: type=1800 audit(1578472417.330:27): pid=8464 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 '10.128.0.201' (ECDSA) to the list of known hosts. 2020/01/08 08:33:45 fuzzer started 2020/01/08 08:33:47 dialing manager at 10.128.0.26:35703 2020/01/08 08:33:47 syscalls: 2824 2020/01/08 08:33:47 code coverage: enabled 2020/01/08 08:33:47 comparison tracing: enabled 2020/01/08 08:33:47 extra coverage: enabled 2020/01/08 08:33:47 setuid sandbox: enabled 2020/01/08 08:33:47 namespace sandbox: enabled 2020/01/08 08:33:47 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 08:33:47 fault injection: enabled 2020/01/08 08:33:47 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 08:33:47 net packet injection: enabled 2020/01/08 08:33:47 net device setup: enabled 2020/01/08 08:33:47 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 08:33:47 devlink PCI setup: PCI device 0000:00:10.0 is not available 08:33:48 executing program 0: io_uring_setup(0xa8, &(0x7f0000000000)={0x0, 0x0, 0x7, 0x0, 0xfffffffd}) 08:33:48 executing program 1: r0 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX_OLD(r0, 0x84, 0x64, &(0x7f0000000040)=[@in6={0xa, 0x4e22, 0x0, @loopback}], 0x1c) sendmmsg$inet6(r0, &(0x7f00000067c0)=[{{&(0x7f0000000000)={0xa, 0x4e22, 0x0, @loopback}, 0x1c, &(0x7f0000002200)=[{&(0x7f0000000080)='G', 0x1}], 0x1}}], 0x1, 0x0) ioctl$sock_SIOCINQ(r0, 0x541b, &(0x7f00000000c0)) syzkaller login: [ 65.784907][ T8630] IPVS: ftp: loaded support on port[0] = 21 08:33:48 executing program 2: r0 = socket$unix(0x1, 0x1, 0x0) bind$unix(r0, &(0x7f0000003000)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0xc) listen(r0, 0x0) r1 = socket$unix(0x1, 0x1, 0x0) r2 = dup(r0) mount$9p_fd(0x0, &(0x7f0000000040)='\xe9\x1fq\x89Y\x1e\x923aK\x00', &(0x7f0000000080)='9p\x00', 0x0, &(0x7f0000000180)={'trans=fd,', {'rfdno', 0x3d, r2}, 0x2c, {'wfdno', 0x3d, r1}}) [ 65.955012][ T8630] chnl_net:caif_netlink_parms(): no params data found [ 65.968727][ T8633] IPVS: ftp: loaded support on port[0] = 21 [ 66.016472][ T8630] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.025401][ T8630] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.033639][ T8630] device bridge_slave_0 entered promiscuous mode [ 66.045393][ T8630] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.053134][ T8630] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.061852][ T8630] device bridge_slave_1 entered promiscuous mode [ 66.086170][ T8630] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.100582][ T8630] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.131712][ T8630] team0: Port device team_slave_0 added [ 66.161678][ T8630] team0: Port device team_slave_1 added [ 66.194783][ T8635] IPVS: ftp: loaded support on port[0] = 21 08:33:48 executing program 3: r0 = add_key$keyring(&(0x7f0000000200)='keyring\x00', &(0x7f00000000c0)={'syz', 0x0}, 0x0, 0x0, 0xfffffffffffffffe) keyctl$chown(0x4, r0, 0xee00, 0x0) [ 66.260334][ T8630] device hsr_slave_0 entered promiscuous mode [ 66.308938][ T8630] device hsr_slave_1 entered promiscuous mode [ 66.445142][ T8638] IPVS: ftp: loaded support on port[0] = 21 [ 66.465809][ T8633] chnl_net:caif_netlink_parms(): no params data found 08:33:49 executing program 4: r0 = getpid() perf_event_open(&(0x7f00000001c0)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, r0, 0x0, 0xffffffffffffffff, 0x4) [ 66.669652][ T8633] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.676844][ T8633] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.687600][ T8633] device bridge_slave_0 entered promiscuous mode [ 66.723370][ T8635] chnl_net:caif_netlink_parms(): no params data found [ 66.747000][ T8633] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.767798][ T8633] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.775662][ T8633] device bridge_slave_1 entered promiscuous mode [ 66.805970][ T8633] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link 08:33:49 executing program 5: set_mempolicy(0x4, 0x0, 0x0) r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = socket$unix(0x1, 0x1, 0x0) r2 = fcntl$dupfd(r0, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) mmap(&(0x7f0000000000/0x95c000)=nil, 0x95c000, 0x1, 0x44031, 0xffffffffffffff9c, 0x0) syz_open_procfs(0x0, &(0x7f0000000040)='cmdline\x00') [ 66.820699][ T8630] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.910852][ T8633] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.931524][ T8630] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.001344][ T8630] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.009929][ T8641] IPVS: ftp: loaded support on port[0] = 21 [ 67.052423][ T8630] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.125679][ T8633] team0: Port device team_slave_0 added [ 67.150264][ T8633] team0: Port device team_slave_1 added [ 67.164845][ T8644] IPVS: ftp: loaded support on port[0] = 21 [ 67.186850][ T8638] chnl_net:caif_netlink_parms(): no params data found [ 67.240466][ T8633] device hsr_slave_0 entered promiscuous mode [ 67.278060][ T8633] device hsr_slave_1 entered promiscuous mode [ 67.327927][ T8633] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.335668][ T8633] Cannot create hsr debugfs directory [ 67.369955][ T8635] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.377058][ T8635] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.384966][ T8635] device bridge_slave_0 entered promiscuous mode [ 67.411910][ T8635] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.419105][ T8635] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.426736][ T8635] device bridge_slave_1 entered promiscuous mode [ 67.476638][ T8638] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.483915][ T8638] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.491554][ T8638] device bridge_slave_0 entered promiscuous mode [ 67.500967][ T8638] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.508503][ T8638] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.516277][ T8638] device bridge_slave_1 entered promiscuous mode [ 67.544790][ T8635] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.601823][ T8635] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.620200][ T8644] chnl_net:caif_netlink_parms(): no params data found [ 67.630916][ T8638] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.646631][ T8638] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.696187][ T8635] team0: Port device team_slave_0 added [ 67.703891][ T8635] team0: Port device team_slave_1 added [ 67.724261][ T8638] team0: Port device team_slave_0 added [ 67.732819][ T8638] team0: Port device team_slave_1 added [ 67.789759][ T8638] device hsr_slave_0 entered promiscuous mode [ 67.828153][ T8638] device hsr_slave_1 entered promiscuous mode [ 67.887830][ T8638] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.895523][ T8638] Cannot create hsr debugfs directory [ 67.959432][ T8635] device hsr_slave_0 entered promiscuous mode [ 68.008224][ T8635] device hsr_slave_1 entered promiscuous mode [ 68.068609][ T8635] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.076196][ T8635] Cannot create hsr debugfs directory [ 68.082332][ T8641] chnl_net:caif_netlink_parms(): no params data found [ 68.157597][ T8633] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 68.221613][ T8644] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.228869][ T8644] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.236460][ T8644] device bridge_slave_0 entered promiscuous mode [ 68.244108][ T8633] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 68.312398][ T8644] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.320828][ T8644] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.329450][ T8644] device bridge_slave_1 entered promiscuous mode [ 68.341133][ T8633] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 68.401824][ T8641] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.409221][ T8641] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.418994][ T8641] device bridge_slave_0 entered promiscuous mode [ 68.434836][ T8644] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.444855][ T8633] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 68.504949][ T8641] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.512398][ T8641] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.520130][ T8641] device bridge_slave_1 entered promiscuous mode [ 68.534594][ T8644] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.552797][ T8630] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.593726][ T8641] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.612033][ T8644] team0: Port device team_slave_0 added [ 68.622719][ T8644] team0: Port device team_slave_1 added [ 68.635017][ T8641] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.648919][ T8635] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 68.696349][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.704443][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.770441][ T8644] device hsr_slave_0 entered promiscuous mode [ 68.810694][ T8644] device hsr_slave_1 entered promiscuous mode [ 68.848540][ T8644] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.856125][ T8644] Cannot create hsr debugfs directory [ 68.867129][ T8635] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 68.920419][ T8630] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.927348][ T8635] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 68.986308][ T8635] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 69.076378][ T8641] team0: Port device team_slave_0 added [ 69.083916][ T8641] team0: Port device team_slave_1 added [ 69.090082][ T8638] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 69.125495][ T8638] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 69.229529][ T8641] device hsr_slave_0 entered promiscuous mode [ 69.278229][ T8641] device hsr_slave_1 entered promiscuous mode [ 69.357954][ T8641] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.365555][ T8641] Cannot create hsr debugfs directory [ 69.371694][ T8638] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 69.443827][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.452741][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.461728][ T2921] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.468931][ T2921] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.493802][ T8638] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 69.533463][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.542334][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.551252][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.559568][ T2921] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.566586][ T2921] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.594212][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.638815][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.647292][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.656380][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.665974][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.702648][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.711382][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.720408][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.728788][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.741800][ T8633] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.766162][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.778279][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.797602][ T8630] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.811890][ T8644] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 69.861122][ T8644] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 69.943386][ T8630] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.951393][ T8644] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 69.999442][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.007175][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.014997][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.022578][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.039316][ T8633] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.052163][ T8644] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 70.095255][ T8641] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 70.139822][ T8641] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 70.179910][ T8641] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 70.234266][ T8635] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.250344][ T8641] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 70.298664][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.307154][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.315717][ T2897] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.322887][ T2897] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.331615][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.344757][ T8638] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.354923][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.363520][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.397861][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.405597][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.413889][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.422761][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.431336][ T2865] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.438421][ T2865] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.473968][ T8630] device veth0_vlan entered promiscuous mode [ 70.484767][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.494636][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.502522][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.510094][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.518560][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.526606][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.536181][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.543836][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.555262][ T8638] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.564228][ T8635] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.580638][ T8630] device veth1_vlan entered promiscuous mode [ 70.596837][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.605017][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.615361][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.625416][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.634068][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.643013][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.652040][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.661098][ T2865] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.674506][ T8644] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.729456][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.737357][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.750933][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.762002][ T3238] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.769113][ T3238] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.776772][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.785294][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.793657][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.802676][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.811200][ T3238] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.818283][ T3238] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.825741][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.833504][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.841132][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.849753][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.858049][ T3238] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.865069][ T3238] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.872655][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.883235][ T8633] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.895629][ T8644] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.934080][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.947509][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.962052][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.973729][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.986321][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.997499][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 71.012397][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.022196][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.035946][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.054383][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.064259][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.107577][ T8641] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.163418][ T8644] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 71.174112][ T8644] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.222012][ T8644] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.240418][ T8638] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 176.047628][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 176.054419][ C1] rcu: 1-...!: (1 GPs behind) idle=92a/1/0x4000000000000002 softirq=15489/15495 fqs=10 [ 176.064390][ C1] (t=10501 jiffies g=6721 q=440) [ 176.069416][ C1] rcu: rcu_preempt kthread starved for 10480 jiffies! g6721 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 176.080499][ C1] rcu: RCU grace-period kthread stack dump: [ 176.086374][ C1] rcu_preempt R running task 29048 10 2 0x80004000 [ 176.094259][ C1] Call Trace: [ 176.097544][ C1] __schedule+0x9a0/0xcc0 [ 176.101869][ C1] schedule+0x181/0x210 [ 176.106023][ C1] schedule_timeout+0x14f/0x240 [ 176.110864][ C1] ? run_local_timers+0x120/0x120 [ 176.115881][ C1] rcu_gp_kthread+0xed8/0x1770 [ 176.120641][ C1] kthread+0x332/0x350 [ 176.124703][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 176.129799][ C1] ? kthread_blkcg+0xe0/0xe0 [ 176.134373][ C1] ret_from_fork+0x24/0x30 [ 176.138802][ C1] NMI backtrace for cpu 1 [ 176.143138][ C1] CPU: 1 PID: 8650 Comm: kthreadd Not tainted 5.5.0-rc5-syzkaller #0 [ 176.151184][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 176.161228][ C1] Call Trace: [ 176.164513][ C1] [ 176.167359][ C1] dump_stack+0x1fb/0x318 [ 176.171682][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 176.176524][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 176.182665][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 176.188717][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 176.194689][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 176.200567][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 176.205687][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 176.210880][ C1] ? trace_hardirqs_off+0x74/0x80 [ 176.215895][ C1] update_process_times+0x12d/0x180 [ 176.221087][ C1] tick_sched_timer+0x263/0x420 [ 176.225923][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 176.231460][ C1] __hrtimer_run_queues+0x403/0x840 [ 176.236663][ C1] hrtimer_interrupt+0x38c/0xda0 [ 176.241602][ C1] ? debug_smp_processor_id+0x9/0x20 [ 176.246878][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 176.252413][ C1] apic_timer_interrupt+0xf/0x20 [ 176.257335][ C1] [ 176.260282][ C1] RIP: 0010:mod_memcg_page_state+0x16/0x190 [ 176.266180][ C1] Code: 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 54 53 41 89 f6 48 89 fb e8 ba 27 2e 00 <48> 83 c3 38 48 89 d8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 [ 176.285780][ C1] RSP: 0018:ffffc90002577e10 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 176.294182][ C1] RAX: ffffffff814896c6 RBX: ffffea00028be1c0 RCX: ffff888093b363c0 [ 176.302143][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00028be1c0 [ 176.310103][ C1] RBP: ffffc90002577e30 R08: dffffc0000000000 R09: fffffbfff124248a [ 176.318062][ C1] R10: fffffbfff124248a R11: 0000000000000000 R12: ffff88809abb18a0 [ 176.326032][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880a84cf538 [ 176.334036][ C1] ? mod_memcg_page_state+0x16/0x190 [ 176.339316][ C1] free_thread_stack+0x168/0x590 [ 176.344243][ C1] put_task_stack+0xa3/0x130 [ 176.348823][ C1] finish_task_switch+0x3f1/0x550 [ 176.353839][ C1] ? kthread_blkcg+0xe0/0xe0 [ 176.358420][ C1] schedule_tail+0x20/0x1a0 [ 176.362909][ C1] ? kthread_blkcg+0xe0/0xe0 [ 176.367518][ C1] ret_from_fork+0x8/0x30