[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 53.278071][ T26] audit: type=1800 audit(1578474289.763:25): pid=8475 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 53.320789][ T26] audit: type=1800 audit(1578474289.763:26): pid=8475 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 53.341101][ T26] audit: type=1800 audit(1578474289.763:27): pid=8475 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 '10.128.0.61' (ECDSA) to the list of known hosts. 2020/01/08 09:05:02 fuzzer started 2020/01/08 09:05:04 dialing manager at 10.128.0.26:35703 2020/01/08 09:05:04 syscalls: 2824 2020/01/08 09:05:04 code coverage: enabled 2020/01/08 09:05:04 comparison tracing: enabled 2020/01/08 09:05:04 extra coverage: enabled 2020/01/08 09:05:04 setuid sandbox: enabled 2020/01/08 09:05:04 namespace sandbox: enabled 2020/01/08 09:05:04 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 09:05:04 fault injection: enabled 2020/01/08 09:05:04 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 09:05:04 net packet injection: enabled 2020/01/08 09:05:04 net device setup: enabled 2020/01/08 09:05:04 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 09:05:04 devlink PCI setup: PCI device 0000:00:10.0 is not available 09:05:05 executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) ioctl$sock_SIOCETHTOOL(r0, 0x8946, &(0x7f0000000080)={'vcan0\x00', &(0x7f0000000000)=@ethtool_coalesce={0x31}}) 09:05:05 executing program 1: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = dup2(r0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$inet_int(r2, 0x0, 0xa, &(0x7f00006ed000), &(0x7f0000000080)=0x4) syzkaller login: [ 68.789122][ T8642] IPVS: ftp: loaded support on port[0] = 21 [ 68.946620][ T8642] chnl_net:caif_netlink_parms(): no params data found [ 68.990895][ T8642] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.000556][ T8642] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.009015][ T8642] device bridge_slave_0 entered promiscuous mode [ 69.020053][ T8642] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.027601][ T8642] bridge0: port 2(bridge_slave_1) entered disabled state 09:05:05 executing program 2: perf_event_open(&(0x7f0000000000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 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, 0x10000, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) recvmmsg(0xffffffffffffffff, &(0x7f0000003140)=[{{&(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x0, 0xffffffffffffffff, {0x2, 0x0, @local}}}, 0x1b, 0x0}}], 0x400000000000290, 0x0, 0x0) r0 = syz_open_procfs(0x0, &(0x7f0000000180)='net/udp\x00') preadv(r0, &(0x7f00000017c0), 0x199, 0x0) r1 = semget$private(0x0, 0x2000000010a, 0x0) semctl$SETALL(0x0, 0x0, 0x11, &(0x7f00000000c0)) semctl$IPC_RMID(r1, 0x0, 0x0) semctl$IPC_INFO(r1, 0x1, 0x3, 0x0) r2 = socket(0xa, 0x0, 0x0) getsockopt$sock_cred(r2, 0x1, 0x11, 0x0, 0x0) pipe(&(0x7f00000003c0)) bpf$OBJ_PIN_MAP(0x6, &(0x7f0000000180)={0x0}, 0x10) semctl$IPC_SET(0x0, 0x0, 0x1, 0x0) [ 69.036769][ T8642] device bridge_slave_1 entered promiscuous mode [ 69.059842][ T8645] IPVS: ftp: loaded support on port[0] = 21 [ 69.072485][ T8642] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.084923][ T8642] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.109735][ T8642] team0: Port device team_slave_0 added [ 69.118738][ T8642] team0: Port device team_slave_1 added [ 69.224766][ T8642] device hsr_slave_0 entered promiscuous mode 09:05:05 executing program 3: openat$pfkey(0xffffffffffffff9c, 0x0, 0x0, 0x0) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x1d, 0x0, 0x0) ioctl$EVIOCGBITSW(0xffffffffffffffff, 0x80404525, &(0x7f0000000580)=""/135) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 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_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) openat$dlm_plock(0xffffffffffffff9c, 0x0, 0x0, 0x0) timer_create(0x0, 0x0, 0x0) r0 = openat$qat_adf_ctl(0xffffffffffffff9c, &(0x7f0000000000)='/dev/qat_adf_ctl\x00', 0x400200, 0x0) waitid$P_PIDFD(0x3, r0, &(0x7f0000000080), 0x2, 0x0) unshare(0x40000000) [ 69.273204][ T8642] device hsr_slave_1 entered promiscuous mode [ 69.353886][ T8647] IPVS: ftp: loaded support on port[0] = 21 [ 69.491152][ T8649] IPVS: ftp: loaded support on port[0] = 21 09:05:06 executing program 4: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet6_udp(0xa, 0x2, 0x0) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @remote, 0x3}, 0x1c) r1 = socket$l2tp(0x18, 0x1, 0x1) connect$l2tp(r1, &(0x7f0000000040), 0x2e) setsockopt$inet6_IPV6_XFRM_POLICY(r0, 0x29, 0x23, &(0x7f0000000080)={{{@in6=@local, @in6=@loopback, 0x0, 0x0, 0x0, 0x0, 0xa, 0x0, 0x80}, {}, {}, 0x0, 0x0, 0x1}, {{@in6=@initdev={0xfe, 0x88, [], 0x0, 0x0}, 0x0, 0x32}, 0x0, @in6=@dev}}, 0xe8) sendmmsg(r1, &(0x7f0000005fc0), 0x800000000000059, 0x0) [ 69.535700][ T8645] chnl_net:caif_netlink_parms(): no params data found [ 69.677466][ T8647] chnl_net:caif_netlink_parms(): no params data found [ 69.738575][ T8653] IPVS: ftp: loaded support on port[0] = 21 [ 69.778750][ T8645] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.790566][ T8645] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.799042][ T8645] device bridge_slave_0 entered promiscuous mode [ 69.809751][ T8642] netdevsim netdevsim0 netdevsim0: renamed from eth0 09:05:06 executing program 5: r0 = creat(&(0x7f0000000180)='./bus\x00', 0x0) ftruncate(r0, 0x8200) r1 = open(&(0x7f0000000080)='./bus\x00', 0x400141042, 0x0) mmap(&(0x7f0000001000/0xa000)=nil, 0xa000, 0x800002, 0x11, r1, 0x0) getresgid(&(0x7f0000003180), 0x0, 0x0) r2 = open(&(0x7f0000000600)='./bus\x00', 0x0, 0x0) ioctl$FS_IOC_FIEMAP(r2, 0xc020660b, &(0x7f0000001480)={0x0, 0x10000}) [ 69.884945][ T8642] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 69.955165][ T8642] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.023875][ T8642] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.065752][ T8645] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.073367][ T8645] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.081152][ T8645] device bridge_slave_1 entered promiscuous mode [ 70.105870][ T8645] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.136840][ T8645] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.138831][ T8655] IPVS: ftp: loaded support on port[0] = 21 [ 70.159892][ T8647] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.167206][ T8647] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.175432][ T8647] device bridge_slave_0 entered promiscuous mode [ 70.185941][ T8647] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.193046][ T8647] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.200726][ T8647] device bridge_slave_1 entered promiscuous mode [ 70.228251][ T8645] team0: Port device team_slave_0 added [ 70.247828][ T8647] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.267777][ T8645] team0: Port device team_slave_1 added [ 70.291326][ T8647] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.315965][ T8647] team0: Port device team_slave_0 added [ 70.340874][ T8647] team0: Port device team_slave_1 added [ 70.414941][ T8645] device hsr_slave_0 entered promiscuous mode [ 70.472196][ T8645] device hsr_slave_1 entered promiscuous mode [ 70.521997][ T8645] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.529889][ T8645] Cannot create hsr debugfs directory [ 70.535555][ T8649] chnl_net:caif_netlink_parms(): no params data found [ 70.633440][ T8647] device hsr_slave_0 entered promiscuous mode [ 70.692109][ T8647] device hsr_slave_1 entered promiscuous mode [ 70.761948][ T8647] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.769645][ T8647] Cannot create hsr debugfs directory [ 70.797022][ T8649] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.806415][ T8649] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.814428][ T8649] device bridge_slave_0 entered promiscuous mode [ 70.822936][ T8649] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.830029][ T8649] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.837968][ T8649] device bridge_slave_1 entered promiscuous mode [ 70.875611][ T8649] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.886657][ T8649] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.940979][ T8649] team0: Port device team_slave_0 added [ 70.949845][ T8649] team0: Port device team_slave_1 added [ 71.004668][ T8649] device hsr_slave_0 entered promiscuous mode [ 71.054060][ T8649] device hsr_slave_1 entered promiscuous mode [ 71.092023][ T8649] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.099615][ T8649] Cannot create hsr debugfs directory [ 71.142927][ T8653] chnl_net:caif_netlink_parms(): no params data found [ 71.162871][ T8642] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.223989][ T8655] chnl_net:caif_netlink_parms(): no params data found [ 71.283006][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.291151][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.306326][ T8655] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.314157][ T8655] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.321692][ T8655] device bridge_slave_0 entered promiscuous mode [ 71.328957][ T8645] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 71.385926][ T8647] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 71.458999][ T8642] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.468203][ T8655] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.475459][ T8655] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.483842][ T8655] device bridge_slave_1 entered promiscuous mode [ 71.491058][ T8645] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 71.544164][ T8645] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 71.583828][ T8647] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 71.654320][ T8647] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 71.711108][ T8647] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 71.774464][ T8653] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.781719][ T8653] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.789661][ T8653] device bridge_slave_0 entered promiscuous mode [ 71.801113][ T8653] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.808247][ T8653] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.816301][ T8653] device bridge_slave_1 entered promiscuous mode [ 71.824486][ T8645] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 71.876326][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.884920][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.893609][ T2786] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.900787][ T2786] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.908849][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.917555][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.925988][ T2786] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.933089][ T2786] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.940894][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.976461][ T8655] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.013066][ T8655] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.038701][ T8653] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.058494][ T8655] team0: Port device team_slave_0 added [ 72.067327][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 72.076320][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 72.085059][ T8649] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 72.134354][ T8649] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 72.195633][ T8653] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.207082][ T8655] team0: Port device team_slave_1 added [ 72.233805][ T8649] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 72.299059][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 72.307942][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.316444][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 72.324858][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.333541][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 72.342141][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.350279][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.365462][ T8642] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 72.377087][ T8642] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.444704][ T8655] device hsr_slave_0 entered promiscuous mode [ 72.482412][ T8655] device hsr_slave_1 entered promiscuous mode [ 72.521954][ T8655] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 72.529704][ T8655] Cannot create hsr debugfs directory [ 72.544287][ T8649] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 72.588757][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 72.598340][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.624984][ T8653] team0: Port device team_slave_0 added [ 72.633452][ T8653] team0: Port device team_slave_1 added [ 72.713648][ T8653] device hsr_slave_0 entered promiscuous mode [ 72.762223][ T8653] device hsr_slave_1 entered promiscuous mode [ 72.822037][ T8653] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 72.829815][ T8653] Cannot create hsr debugfs directory [ 72.888170][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.896227][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.908682][ T8642] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.979514][ T8647] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.989837][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.000871][ T2797] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.017240][ T8645] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.036706][ T8642] device veth0_vlan entered promiscuous mode [ 73.055300][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.068404][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.076681][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.084910][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.092734][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.100314][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.115769][ T8653] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 73.183702][ T8653] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 73.213557][ T8653] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 73.256054][ T8653] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 73.299614][ T8642] device veth1_vlan entered promiscuous mode [ 73.308663][ T8647] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.325478][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.336716][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.346008][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.354867][ T2921] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.361968][ T2921] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.370192][ T2921] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 73.385699][ T8655] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 73.440595][ T8645] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.452396][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.460972][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.469881][ T2798] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.476975][ T2798] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.485874][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 73.494611][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.502350][ T2798] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.513327][ T8655] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 73.554880][ T8655] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 73.602147][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.610717][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.619889][ T2786] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.626997][ T2786] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.635035][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.644248][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.652698][ T2786] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.659756][ T2786] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.672710][ T8649] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.688038][ T8655] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 73.747451][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 73.755493][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 73.810016][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 73.819403][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.828471][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 73.837142][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.845733][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.854111][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.862620][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 73.871946][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 73.885680][ T8649] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.903029][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.918945][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.939850][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.948496][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.957239][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.966361][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 73.975883][ T2786] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.986476][ T8647] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.014810][ T8653] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.031126][ T8653] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.069060][ T8653] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 74.079849][ T8653] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.111369][ T8653] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 178.971794][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 178.978646][ C1] rcu: 1-...!: (10499 ticks this GP) idle=402/1/0x4000000000000002 softirq=13862/13862 fqs=7 [ 178.989425][ C1] (t=10500 jiffies g=6881 q=404) [ 178.994458][ C1] rcu: rcu_preempt kthread starved for 10484 jiffies! g6881 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 179.005554][ C1] rcu: RCU grace-period kthread stack dump: [ 179.011449][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 179.019350][ C1] Call Trace: [ 179.022637][ C1] __schedule+0x9a0/0xcc0 [ 179.026968][ C1] schedule+0x181/0x210 [ 179.031121][ C1] schedule_timeout+0x14f/0x240 [ 179.035970][ C1] ? run_local_timers+0x120/0x120 [ 179.040991][ C1] rcu_gp_kthread+0xed8/0x1770 [ 179.045753][ C1] kthread+0x332/0x350 [ 179.049810][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 179.054908][ C1] ? kthread_blkcg+0xe0/0xe0 [ 179.059502][ C1] ret_from_fork+0x24/0x30 [ 179.063916][ C1] NMI backtrace for cpu 1 [ 179.068244][ C1] CPU: 1 PID: 8611 Comm: udevd Not tainted 5.5.0-rc5-syzkaller #0 [ 179.076052][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 179.086093][ C1] Call Trace: [ 179.089364][ C1] [ 179.092292][ C1] dump_stack+0x1fb/0x318 [ 179.096625][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 179.101460][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 179.107614][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 179.113667][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 179.119640][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 179.125540][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 179.130653][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 179.135867][ C1] ? trace_hardirqs_off+0x74/0x80 [ 179.140931][ C1] update_process_times+0x12d/0x180 [ 179.146129][ C1] tick_sched_timer+0x263/0x420 [ 179.150973][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 179.156513][ C1] __hrtimer_run_queues+0x403/0x840 [ 179.161715][ C1] hrtimer_interrupt+0x38c/0xda0 [ 179.166656][ C1] ? debug_smp_processor_id+0x9/0x20 [ 179.171933][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 179.177469][ C1] apic_timer_interrupt+0xf/0x20 [ 179.182389][ C1] [ 179.185318][ C1] RIP: 0010:free_thread_stack+0x11f/0x590 [ 179.191025][ C1] Code: 3e e8 45 73 ee ff 48 c1 e8 06 48 83 e0 c0 48 bf 00 00 00 00 00 ea ff ff 48 01 c7 be 03 00 00 00 e8 86 91 61 00 e9 5d 04 00 00 3c 2c 2e 00 48 89 df 31 f6 e8 02 8d 6f 00 43 80 3c 2e 00 74 08 [ 179.210618][ C1] RSP: 0018:ffffc90001c57760 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 179.219017][ C1] RAX: 1ffff11011ca35e1 RBX: ffffea0002a04b40 RCX: ffff8880a9184080 [ 179.226976][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002a04b40 [ 179.234935][ C1] RBP: ffffc90001c57798 R08: 000000000003a728 R09: ffffed101357e2a1 [ 179.242898][ C1] R10: ffffed101357e2a1 R11: 0000000000000000 R12: ffff88808e51afa0 [ 179.250861][ C1] R13: dffffc0000000000 R14: 1ffff11011ca35f4 R15: ffff88809abf14f8 [ 179.258865][ C1] put_task_stack+0xa3/0x130 [ 179.263467][ C1] finish_task_switch+0x3f1/0x550 [ 179.268496][ C1] __schedule+0x9a8/0xcc0 [ 179.272846][ C1] schedule+0x181/0x210 [ 179.277006][ C1] schedule_hrtimeout_range_clock+0x3c7/0x510 [ 179.283093][ C1] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 179.288903][ C1] schedule_hrtimeout_range+0x2a/0x40 [ 179.294269][ C1] poll_schedule_timeout+0x11c/0x1c0 [ 179.299633][ C1] do_sys_poll+0x83f/0x1250 [ 179.304232][ C1] ? debug_object_activate+0x2f7/0x6f0 [ 179.309683][ C1] ? debug_object_active_state+0x1e3/0x4a0 [ 179.315483][ C1] ? __lock_acquire+0xc75/0x1be0 [ 179.320414][ C1] ? __x32_compat_sys_ppoll_time64+0xd0/0xd0 [ 179.326393][ C1] ? trace_hardirqs_on+0x74/0x80 [ 179.331319][ C1] ? ktime_get_ts64+0x6e/0x2c0 [ 179.336078][ C1] ? ktime_get_ts64+0x6e/0x2c0 [ 179.340826][ C1] ? read_seqcount_begin+0x125/0x1c0 [ 179.346107][ C1] ? trace_hardirqs_on+0x74/0x80 [ 179.351033][ C1] ? ktime_get_ts64+0x6e/0x2c0 [ 179.355783][ C1] ? read_seqcount_begin+0x17a/0x1c0 [ 179.361053][ C1] ? ktime_get_ts64+0x240/0x2c0 [ 179.365892][ C1] ? timespec64_add_safe+0x171/0x1b0 [ 179.371167][ C1] __se_sys_poll+0x1b0/0x360 [ 179.375761][ C1] __x64_sys_poll+0x7b/0x90 [ 179.380254][ C1] do_syscall_64+0xf7/0x1c0 [ 179.384759][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 179.390636][ C1] RIP: 0033:0x7f8d5784d678 [ 179.395056][ C1] Code: 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 90 90 90 48 83 ec 28 8b 05 82 8f 2b 00 85 c0 75 17 48 63 d2 b8 07 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 48 83 c4 28 c3 89 54 24 08 48 89 74 24 10 [ 179.414654][ C1] RSP: 002b:00007fff06690ac0 EFLAGS: 00000246 ORIG_RAX: 0000000000000007 [ 179.423056][ C1] RAX: ffffffffffffffda RBX: 20c49ba5e353f7cf RCX: 00007f8d5784d678 [ 179.431024][ C1] RDX: 000000000000ee2d RSI: 0000000000000001 RDI: 00007fff06690b80 [ 179.438988][ C1] RBP: 0000000000000000 R08: 00007fff06690ad0 R09: 00007fff0672c0b8 [ 179.446960][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001aa1240 [ 179.454921][ C1] R13: 00000000000021d3 R14: 00007fff06690b54 R15: 0000000001a90250