[ 43.851206][ T23] audit: type=1800 audit(1575369220.382:26): pid=7999 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 43.879649][ T23] audit: type=1800 audit(1575369220.382:27): pid=7999 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 43.879674][ T23] audit: type=1800 audit(1575369220.392:28): pid=7999 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. [ 44.692929][ T23] audit: type=1800 audit(1575369221.242:29): pid=7999 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 '10.128.0.186' (ECDSA) to the list of known hosts. 2019/12/03 10:33:51 fuzzer started 2019/12/03 10:33:53 dialing manager at 10.128.0.26:38907 2019/12/03 10:33:53 syscalls: 2697 2019/12/03 10:33:53 code coverage: enabled 2019/12/03 10:33:53 comparison tracing: enabled 2019/12/03 10:33:53 extra coverage: extra coverage is not supported by the kernel 2019/12/03 10:33:53 setuid sandbox: enabled 2019/12/03 10:33:53 namespace sandbox: enabled 2019/12/03 10:33:53 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 10:33:53 fault injection: enabled 2019/12/03 10:33:53 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 10:33:53 net packet injection: enabled 2019/12/03 10:33:53 net device setup: enabled 2019/12/03 10:33:53 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 10:33:53 devlink PCI setup: PCI device 0000:00:10.0 is not available 10:33:54 executing program 0: sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000880)=ANY=[@ANYBLOB="000005000000000006000000080001007533320088080200240105000cff080000058000a30ee30000000000000000010000003f0800000006000000ffffffff0000000308000000020000000000000200000004ff0700001f00000000000400000000018b0700008800000000000001000000020100000005"], 0x1}}, 0x0) r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$sequencer(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer\x00', 0x1, 0x0) write$sndseq(r2, &(0x7f0000000040)=[{0x0, 0x0, 0x0, 0x0, @tick, {}, {}, @quote}], 0x1030d) 10:33:54 executing program 1: r0 = syz_open_dev$video(&(0x7f0000000100)='/dev/video#\x00', 0x3, 0x0) ioctl$VIDIOC_S_FMT(r0, 0xc0d05605, &(0x7f0000000180)={0x1, @vbi={0x0, 0x0, 0x34325241}}) syzkaller login: [ 58.355966][ T8164] IPVS: ftp: loaded support on port[0] = 21 10:33:55 executing program 2: r0 = creat(&(0x7f0000000040)='./bus\x00', 0x0) lsetxattr$security_ima(&(0x7f0000000080)='./bus\x00', &(0x7f0000000140)='security.ima\x00', &(0x7f0000000180)=ANY=[@ANYBLOB="04098942a9c965c8851134e8bcec6c550d7b000000005ca526c33ff79bcf0b1cc33c75350bd451136ff6ac046dc175d715"], 0x2, 0x0) ftruncate(r0, 0x9471) open$dir(&(0x7f0000000000)='./bus\x00', 0x0, 0x0) [ 58.519958][ T8164] chnl_net:caif_netlink_parms(): no params data found [ 58.523625][ T8166] IPVS: ftp: loaded support on port[0] = 21 [ 58.626758][ T8164] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.643207][ T8164] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.660785][ T8164] device bridge_slave_0 entered promiscuous mode [ 58.682799][ T8164] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.699725][ T8164] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.707520][ T8164] device bridge_slave_1 entered promiscuous mode [ 58.728169][ T8169] IPVS: ftp: loaded support on port[0] = 21 [ 58.782811][ T8164] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link 10:33:55 executing program 3: mkdir(&(0x7f00000000c0)='./file0\x00', 0x0) mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000000100)='./file0\x00', &(0x7f0000000140)='reiserfs\x00', 0x8000, 0x0) [ 58.829020][ T8164] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.893128][ T8164] team0: Port device team_slave_0 added [ 58.905077][ T8166] chnl_net:caif_netlink_parms(): no params data found [ 58.920457][ T8164] team0: Port device team_slave_1 added [ 59.024691][ T8164] device hsr_slave_0 entered promiscuous mode 10:33:55 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, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) preadv(0xffffffffffffffff, 0x0, 0x0, 0x0) openat$cgroup_ro(0xffffffffffffffff, &(0x7f0000000340)='cpuacct.usage_percpu_user\x00', 0x0, 0x0) ioctl$TIOCLINUX4(0xffffffffffffffff, 0x541c, &(0x7f0000000380)) syz_open_dev$media(0x0, 0x2, 0x482880) r0 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f0000000180)='/dev/ubi_ctrl\x00', 0x0, 0x0) setsockopt$bt_l2cap_L2CAP_OPTIONS(r0, 0x6, 0x1, &(0x7f00000001c0)={0x0, 0x0, 0xfff, 0x0, 0x0, 0xf7, 0x1}, 0xc) r1 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000440)='TIPCv2\x00') sendmsg$TIPC_NL_MEDIA_SET(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x74, r1, 0x712, 0x70bd28, 0x25dfdbfc, {}, [@TIPC_NLA_MEDIA={0x30, 0x5, [@TIPC_NLA_MEDIA_PROP={0x2c, 0x2, [@TIPC_NLA_PROP_TOL={0x8}, @TIPC_NLA_PROP_MTU={0x8, 0x4, 0x7}, @TIPC_NLA_PROP_TOL={0x8, 0x2, 0x9}, @TIPC_NLA_PROP_MTU={0x8, 0x4, 0x7fff}, @TIPC_NLA_PROP_MTU={0x8, 0x4, 0x5}]}]}, @TIPC_NLA_LINK={0x30, 0x4, [@TIPC_NLA_LINK_NAME={0x14, 0x1, 'broadcast-link\x00'}, @TIPC_NLA_LINK_NAME={0xc, 0x1, 'syz0\x00'}, @TIPC_NLA_LINK_NAME={0xc, 0x1, 'syz0\x00'}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000091}, 0x4008000) unshare(0x0) socket$inet_udp(0x2, 0x2, 0x0) setregid(0x0, 0x0) getresgid(0x0, 0x0, &(0x7f0000000240)) syz_genetlink_get_family_id$SEG6(&(0x7f0000000200)='SEG6\x00') r2 = socket$xdp(0x2c, 0x3, 0x0) r3 = accept4(r2, 0x0, &(0x7f0000000040), 0x80800) read(r3, &(0x7f00000003c0)=""/84, 0x54) r4 = openat$loop_ctrl(0xffffffffffffff9c, &(0x7f0000000100)='/dev/loop-control\x00', 0x801, 0x0) socket$nl_route(0x10, 0x3, 0x0) ioctl$LOOP_CTL_REMOVE(r4, 0x4c81, 0x0) ioctl$LOOP_CTL_ADD(r4, 0x4c80, 0x0) r5 = openat$sequencer2(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x0, 0x0) ioctl$VIDIOC_DV_TIMINGS_CAP(r5, 0xc0905664, &(0x7f0000000280)={0x0, 0x0, [], @bt={0x80, 0x395d, 0x7, 0xffffffff, 0xfff, 0x0, 0x10, 0x3}}) [ 59.080070][ T8164] device hsr_slave_1 entered promiscuous mode [ 59.152148][ T8166] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.159235][ T8166] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.180623][ T8166] device bridge_slave_0 entered promiscuous mode [ 59.196111][ T8172] IPVS: ftp: loaded support on port[0] = 21 [ 59.241921][ T8166] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.249195][ T8166] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.262382][ T8166] device bridge_slave_1 entered promiscuous mode [ 59.302194][ T8176] IPVS: ftp: loaded support on port[0] = 21 10:33:55 executing program 5: r0 = syz_open_dev$vbi(&(0x7f00000001c0)='/dev/vbi#\x00', 0x1, 0x2) ioctl$VIDIOC_ENUMSTD(r0, 0xc0485619, &(0x7f0000000040)={0xe, 0x0, "c2324c4d0091b3aee0740204be05402504c88d06652dd432"}) [ 59.348529][ T8164] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.392875][ T8164] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.470905][ T8169] chnl_net:caif_netlink_parms(): no params data found [ 59.479397][ T8164] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.563624][ T8164] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.632843][ T8166] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.645923][ T8166] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.684015][ T8178] IPVS: ftp: loaded support on port[0] = 21 [ 59.706285][ T8166] team0: Port device team_slave_0 added [ 59.714350][ T8166] team0: Port device team_slave_1 added [ 59.771397][ T8169] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.778643][ T8169] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.786531][ T8169] device bridge_slave_0 entered promiscuous mode [ 59.795713][ T8169] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.802951][ T8169] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.810723][ T8169] device bridge_slave_1 entered promiscuous mode [ 59.862273][ T8166] device hsr_slave_0 entered promiscuous mode [ 59.929940][ T8166] device hsr_slave_1 entered promiscuous mode [ 59.979792][ T8166] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.005945][ T8172] chnl_net:caif_netlink_parms(): no params data found [ 60.071339][ T8169] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.084077][ T8169] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.094672][ T8172] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.104118][ T8172] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.111781][ T8172] device bridge_slave_0 entered promiscuous mode [ 60.127659][ T8166] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 60.168327][ T8172] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.175585][ T8172] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.183314][ T8172] device bridge_slave_1 entered promiscuous mode [ 60.193047][ T8166] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 60.269538][ T8176] chnl_net:caif_netlink_parms(): no params data found [ 60.290698][ T8166] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 60.353300][ T8169] team0: Port device team_slave_0 added [ 60.359128][ T8166] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 60.421353][ T8172] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.450796][ T8169] team0: Port device team_slave_1 added [ 60.473031][ T8164] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.485864][ T8172] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.515516][ T8176] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.523827][ T8176] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.531601][ T8176] device bridge_slave_0 entered promiscuous mode [ 60.558792][ T8176] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.566101][ T8176] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.573982][ T8176] device bridge_slave_1 entered promiscuous mode [ 60.633238][ T8169] device hsr_slave_0 entered promiscuous mode [ 60.699882][ T8169] device hsr_slave_1 entered promiscuous mode [ 60.750048][ T8169] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.760035][ T8172] team0: Port device team_slave_0 added [ 60.766189][ T8178] chnl_net:caif_netlink_parms(): no params data found [ 60.793003][ T8176] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.823039][ T8172] team0: Port device team_slave_1 added [ 60.841520][ T8169] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 60.895115][ T8176] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.919235][ T8176] team0: Port device team_slave_0 added [ 60.934660][ T8169] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 60.995355][ T8169] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 61.053118][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.062022][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.078408][ T8164] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.093349][ T8176] team0: Port device team_slave_1 added [ 61.106034][ T8178] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.114255][ T8178] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.122732][ T8178] device bridge_slave_0 entered promiscuous mode [ 61.130608][ T8169] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.222599][ T8172] device hsr_slave_0 entered promiscuous mode [ 61.250004][ T8172] device hsr_slave_1 entered promiscuous mode [ 61.299875][ T8172] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.317316][ T8166] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.324497][ T8178] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.332148][ T8178] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.340375][ T8178] device bridge_slave_1 entered promiscuous mode [ 61.361888][ T8178] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.384333][ T8178] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.410064][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.418911][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.428000][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.435213][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.444582][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.453633][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.462059][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.469118][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.477109][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.514057][ T8176] device hsr_slave_0 entered promiscuous mode [ 61.560124][ T8176] device hsr_slave_1 entered promiscuous mode [ 61.599815][ T8176] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.623610][ T8166] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.643287][ T8174] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.652261][ T8174] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.660370][ T8174] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.685613][ T8178] team0: Port device team_slave_0 added [ 61.694286][ T8178] team0: Port device team_slave_1 added [ 61.715990][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.791696][ T8178] device hsr_slave_0 entered promiscuous mode [ 61.830220][ T8178] device hsr_slave_1 entered promiscuous mode [ 61.869814][ T8178] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.888323][ T8164] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.899331][ T8164] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.913168][ T8172] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 61.992275][ T8172] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 62.053475][ T8176] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 62.112067][ T8176] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 62.162727][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.171674][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.180147][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.187226][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.195136][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.204312][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.212918][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.221686][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.230547][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.238963][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.247739][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.256103][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.264608][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.272619][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.280653][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.309118][ T8172] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 62.342359][ T8176] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 62.404172][ T8178] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 62.452234][ T8172] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 62.491718][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.500821][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.509233][ T8183] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.516470][ T8183] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.524301][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.533084][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.540742][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.548150][ T8183] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.556872][ T8176] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 62.605447][ T8164] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.618062][ T8178] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 62.673708][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.683963][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.702003][ T8178] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 62.732272][ T8178] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 62.799913][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.808566][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.822666][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.849078][ T8169] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.878217][ T8169] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.947469][ T8169] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 62.964310][ T8169] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.005797][ T8169] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 167.859580][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 167.866398][ C0] rcu: 0-...!: (10499 ticks this GP) idle=f42/1/0x4000000000000002 softirq=10809/10809 fqs=39 [ 167.877043][ C0] (t=10501 jiffies g=6449 q=409) [ 167.882057][ C0] rcu: rcu_preempt kthread starved for 10424 jiffies! g6449 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 167.893136][ C0] rcu: RCU grace-period kthread stack dump: [ 167.899026][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 167.906937][ C0] Call Trace: [ 167.910233][ C0] __schedule+0x9a0/0xcc0 [ 167.914562][ C0] schedule+0x181/0x210 [ 167.918710][ C0] schedule_timeout+0x14f/0x240 [ 167.923555][ C0] ? run_local_timers+0x120/0x120 [ 167.928577][ C0] rcu_gp_kthread+0xed8/0x1770 [ 167.933348][ C0] kthread+0x332/0x350 [ 167.937405][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 167.942502][ C0] ? kthread_blkcg+0xe0/0xe0 [ 167.947105][ C0] ret_from_fork+0x24/0x30 [ 167.951543][ C0] NMI backtrace for cpu 0 [ 167.955872][ C0] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.4.0-syzkaller #0 [ 167.963655][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.973707][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 167.979668][ C0] Call Trace: [ 167.982939][ C0] [ 167.985779][ C0] dump_stack+0x1fb/0x318 [ 167.990113][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 167.995041][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 168.001287][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 168.007339][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 168.013305][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 168.019184][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 168.024289][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 168.029476][ C0] ? trace_hardirqs_off+0x74/0x80 [ 168.034493][ C0] update_process_times+0x12d/0x180 [ 168.039680][ C0] tick_sched_timer+0x263/0x420 [ 168.044519][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 168.050056][ C0] __hrtimer_run_queues+0x403/0x840 [ 168.055256][ C0] hrtimer_interrupt+0x38c/0xda0 [ 168.060198][ C0] ? debug_smp_processor_id+0x9/0x20 [ 168.065607][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 168.071159][ C0] apic_timer_interrupt+0xf/0x20 [ 168.076101][ C0] [ 168.079039][ C0] RIP: 0010:free_thread_stack+0x124/0x590 [ 168.084751][ C0] Code: 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 06 a2 60 00 e9 5d 04 00 00 e8 5c 2d 2e 00 <48> 89 df 31 f6 e8 42 af 6e 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 43 [ 168.104359][ C0] RSP: 0018:ffffc90000d2f8e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 168.112763][ C0] RAX: ffffffff81486ea4 RBX: ffffea000277d240 RCX: ffff8880a9dee300 [ 168.120732][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea000277d240 [ 168.128689][ C0] RBP: ffffc90000d2f920 R08: 000000000003a768 R09: fffffbfff120248a [ 168.136647][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88809f5313a0 [ 168.144609][ C0] R13: dffffc0000000000 R14: 1ffff11013ea6274 R15: ffff8880957c7628 [ 168.152610][ C0] ? free_thread_stack+0x124/0x590 [ 168.157713][ C0] ? free_thread_stack+0x124/0x590 [ 168.162812][ C0] put_task_stack+0xa3/0x130 [ 168.167391][ C0] finish_task_switch+0x3f1/0x550 [ 168.172406][ C0] __schedule+0x9a8/0xcc0 [ 168.176726][ C0] ? debug_smp_processor_id+0x9/0x20 [ 168.182014][ C0] schedule+0x181/0x210 [ 168.186157][ C0] schedule_preempt_disabled+0x13/0x20 [ 168.191776][ C0] mutex_optimistic_spin+0x445/0x480 [ 168.197412][ C0] __mutex_lock_common+0x2e7/0x2e10 [ 168.202608][ C0] ? rtnl_lock+0x17/0x20 [ 168.206849][ C0] ? process_one_work+0x75d/0x10d0 [ 168.211951][ C0] mutex_lock_nested+0x1b/0x30 [ 168.216699][ C0] rtnl_lock+0x17/0x20 [ 168.220753][ C0] addrconf_dad_work+0x69/0x1c30 [ 168.225679][ C0] ? rcu_read_lock_sched_held+0x10b/0x170 [ 168.231385][ C0] process_one_work+0x7ef/0x10d0 [ 168.236325][ C0] worker_thread+0xc01/0x1630 [ 168.241007][ C0] kthread+0x332/0x350 [ 168.245062][ C0] ? rcu_lock_release+0x30/0x30 [ 168.249897][ C0] ? kthread_blkcg+0xe0/0xe0 [ 168.254476][ C0] ret_from_fork+0x24/0x30