[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 51.559081][ T26] audit: type=1800 audit(1578474468.468:25): pid=8419 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 51.583428][ T26] audit: type=1800 audit(1578474468.468:26): pid=8419 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 51.645268][ T26] audit: type=1800 audit(1578474468.478:27): pid=8419 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 '10.128.0.119' (ECDSA) to the list of known hosts. 2020/01/08 09:07:57 fuzzer started 2020/01/08 09:07:59 dialing manager at 10.128.0.26:35703 2020/01/08 09:07:59 syscalls: 2824 2020/01/08 09:07:59 code coverage: enabled 2020/01/08 09:07:59 comparison tracing: enabled 2020/01/08 09:07:59 extra coverage: enabled 2020/01/08 09:07:59 setuid sandbox: enabled 2020/01/08 09:07:59 namespace sandbox: enabled 2020/01/08 09:07:59 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 09:07:59 fault injection: enabled 2020/01/08 09:07:59 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 09:07:59 net packet injection: enabled 2020/01/08 09:07:59 net device setup: enabled 2020/01/08 09:07:59 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 09:07:59 devlink PCI setup: PCI device 0000:00:10.0 is not available 09:08:00 executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0xc, 0xe, &(0x7f0000000380)=ANY=[@ANYBLOB="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"], &(0x7f0000000340)='GPL\x00'}, 0x1e) 09:08:00 executing program 1: socketpair$unix(0x1, 0x3, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) unshare(0x2a000400) r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) bind$bt_sco(r1, &(0x7f0000000040), 0x8) syzkaller login: [ 63.701812][ T8585] IPVS: ftp: loaded support on port[0] = 21 [ 63.819715][ T8587] IPVS: ftp: loaded support on port[0] = 21 09:08:00 executing program 2: r0 = socket(0x10, 0x3, 0x0) capset(&(0x7f0000000080)={0x19980330}, &(0x7f00000000c0)) ioctl$sock_ifreq(r0, 0x89f1, &(0x7f0000000080)={'sit0\x00', @ifru_map}) [ 63.884405][ T8585] chnl_net:caif_netlink_parms(): no params data found [ 64.031149][ T8585] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.043463][ T8585] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.051495][ T8585] device bridge_slave_0 entered promiscuous mode [ 64.079978][ T8591] IPVS: ftp: loaded support on port[0] = 21 [ 64.089204][ T8585] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.098012][ T8585] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.111975][ T8585] device bridge_slave_1 entered promiscuous mode [ 64.135986][ T8587] chnl_net:caif_netlink_parms(): no params data found 09:08:01 executing program 3: r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_add_memb(r0, 0x107, 0x1, 0x0, 0x0) [ 64.190730][ T8585] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.226424][ T8585] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.273225][ T8587] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.283204][ T8587] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.291706][ T8587] device bridge_slave_0 entered promiscuous mode [ 64.324689][ T8585] team0: Port device team_slave_0 added [ 64.333296][ T8587] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.341321][ T8587] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.349966][ T8587] device bridge_slave_1 entered promiscuous mode [ 64.360732][ T8585] team0: Port device team_slave_1 added [ 64.390070][ T8587] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.425598][ T8591] chnl_net:caif_netlink_parms(): no params data found 09:08:01 executing program 4: r0 = socket$inet6_sctp(0xa, 0x801, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r0, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) connect$inet6(r0, &(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) setsockopt$inet_sctp6_SCTP_ASSOCINFO(r0, 0x84, 0x1, &(0x7f0000000140)={0x0, 0x6}, 0x14) [ 64.476819][ T8585] device hsr_slave_0 entered promiscuous mode [ 64.533692][ T8585] device hsr_slave_1 entered promiscuous mode [ 64.586753][ T8587] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.631172][ T8594] IPVS: ftp: loaded support on port[0] = 21 [ 64.706933][ T8587] team0: Port device team_slave_0 added [ 64.725592][ T8591] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.732696][ T8591] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.742363][ T8591] device bridge_slave_0 entered promiscuous mode [ 64.757734][ T8587] team0: Port device team_slave_1 added [ 64.769644][ T8596] IPVS: ftp: loaded support on port[0] = 21 [ 64.796503][ T8591] bridge0: port 2(bridge_slave_1) entered blocking state 09:08:01 executing program 5: unshare(0x2000400) r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = dup2(r0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x0) [ 64.804605][ T8591] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.812579][ T8591] device bridge_slave_1 entered promiscuous mode [ 64.874462][ T8591] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.955549][ T8587] device hsr_slave_0 entered promiscuous mode [ 64.984599][ T8587] device hsr_slave_1 entered promiscuous mode [ 65.033521][ T8587] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.041326][ T8587] Cannot create hsr debugfs directory [ 65.061412][ T8591] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.084633][ T8591] team0: Port device team_slave_0 added [ 65.114326][ T8591] team0: Port device team_slave_1 added [ 65.152443][ T8598] IPVS: ftp: loaded support on port[0] = 21 [ 65.179522][ T8585] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.256252][ T8585] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.297715][ T8585] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.361163][ T8585] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.445237][ T8591] device hsr_slave_0 entered promiscuous mode [ 65.493776][ T8591] device hsr_slave_1 entered promiscuous mode [ 65.543443][ T8591] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.551073][ T8591] Cannot create hsr debugfs directory [ 65.606104][ T8594] chnl_net:caif_netlink_parms(): no params data found [ 65.707315][ T8587] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 65.778617][ T8587] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 65.835654][ T8587] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 65.877955][ T8587] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 65.930685][ T8594] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.938350][ T8594] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.946450][ T8594] device bridge_slave_0 entered promiscuous mode [ 65.955583][ T8594] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.962625][ T8594] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.970879][ T8594] device bridge_slave_1 entered promiscuous mode [ 65.995879][ T8596] chnl_net:caif_netlink_parms(): no params data found [ 66.027568][ T8594] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.044567][ T8594] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.078558][ T8591] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 66.137130][ T8591] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 66.200172][ T8591] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 66.247706][ T8594] team0: Port device team_slave_0 added [ 66.277847][ T8591] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 66.326907][ T8594] team0: Port device team_slave_1 added [ 66.342933][ T8596] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.350455][ T8596] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.358704][ T8596] device bridge_slave_0 entered promiscuous mode [ 66.367000][ T8596] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.374229][ T8596] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.381917][ T8596] device bridge_slave_1 entered promiscuous mode [ 66.446156][ T8594] device hsr_slave_0 entered promiscuous mode [ 66.494188][ T8594] device hsr_slave_1 entered promiscuous mode [ 66.543585][ T8594] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.551293][ T8594] Cannot create hsr debugfs directory [ 66.579066][ T8598] chnl_net:caif_netlink_parms(): no params data found [ 66.596022][ T8585] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.631109][ T8596] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.671651][ T8596] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.699443][ T8585] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.711719][ T8598] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.722374][ T8598] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.730284][ T8598] device bridge_slave_0 entered promiscuous mode [ 66.751035][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.761493][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.772757][ T8587] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.784832][ T8598] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.792125][ T8598] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.801778][ T8598] device bridge_slave_1 entered promiscuous mode [ 66.810512][ T8596] team0: Port device team_slave_0 added [ 66.845745][ T8596] team0: Port device team_slave_1 added [ 66.858247][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.869436][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.879093][ T2747] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.886306][ T2747] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.894632][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.903270][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.911908][ T2747] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.919011][ T2747] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.926988][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.954819][ T8598] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.965723][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 66.976978][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.993015][ T8587] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.013705][ T8594] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 67.049713][ T8594] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 67.106567][ T8598] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.121039][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.131484][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.139230][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.148632][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.156981][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.165877][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.174366][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.182709][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.192368][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.203964][ T8591] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.276134][ T8596] device hsr_slave_0 entered promiscuous mode [ 67.315540][ T8596] device hsr_slave_1 entered promiscuous mode [ 67.353700][ T8596] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.365526][ T8596] Cannot create hsr debugfs directory [ 67.371149][ T8594] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 67.423061][ T8598] team0: Port device team_slave_0 added [ 67.431602][ T8598] team0: Port device team_slave_1 added [ 67.439704][ T8585] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.450977][ T8585] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.460055][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.468682][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.477586][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.486351][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.494995][ T2736] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.502047][ T2736] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.510207][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.518819][ T8594] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 67.626919][ T8598] device hsr_slave_0 entered promiscuous mode [ 67.673767][ T8598] device hsr_slave_1 entered promiscuous mode [ 67.713419][ T8598] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.721041][ T8598] Cannot create hsr debugfs directory [ 67.782390][ T8591] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.791289][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.801249][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.809627][ T2736] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.816832][ T2736] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.824550][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.832011][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.839575][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.847303][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.871760][ T8585] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.898372][ T3007] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.907492][ T3007] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.967231][ T8594] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.977562][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.986841][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.995916][ T3015] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.002967][ T3015] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.010529][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.019164][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.027703][ T3015] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.034787][ T3015] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.042233][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.050841][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.059389][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.067999][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.076530][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.085074][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.093283][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.101619][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.109732][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.118042][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.126193][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.134810][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.143467][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.151253][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.163057][ T8587] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.202600][ T8594] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.228458][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.237993][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.250368][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.258393][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.266537][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.274134][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.282924][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.291316][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.300024][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.312919][ T8585] device veth0_vlan entered promiscuous mode [ 68.327444][ T8596] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 68.387157][ T8596] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 68.447422][ T8587] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.457642][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.466385][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.474715][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.483151][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.491729][ T2812] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.498831][ T2812] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.515282][ T8596] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 68.552018][ T8591] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 68.562657][ T8591] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.579233][ T8585] device veth1_vlan entered promiscuous mode [ 68.591348][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.599205][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.607481][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.615452][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.623790][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.631999][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.640796][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.649295][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.657974][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.666442][ T2812] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.673539][ T2812] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.681200][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.690031][ T8596] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 68.752608][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.761883][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.790540][ T8591] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.802272][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.811451][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.819617][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.828385][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.837971][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.847141][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.873689][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.881428][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.890827][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.899980][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.909407][ T2736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.929486][ T8587] device veth0_vlan entered promiscuous mode [ 68.942277][ T8598] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 68.996494][ T8598] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 69.045258][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.052965][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.061002][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.069546][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.098820][ T8587] device veth1_vlan entered promiscuous mode [ 69.115321][ T8598] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 69.172999][ T8598] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 174.153305][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 174.160085][ C1] rcu: 1-...!: (10499 ticks this GP) idle=8be/1/0x4000000000000002 softirq=13877/13877 fqs=1 [ 174.170574][ C1] (t=10500 jiffies g=6957 q=74) [ 174.175520][ C1] rcu: rcu_preempt kthread starved for 10498 jiffies! g6957 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 174.186606][ C1] rcu: RCU grace-period kthread stack dump: [ 174.192482][ C1] rcu_preempt R running task 28984 10 2 0x80004000 [ 174.200368][ C1] Call Trace: [ 174.203658][ C1] __schedule+0x9a0/0xcc0 [ 174.208005][ C1] schedule+0x181/0x210 [ 174.212165][ C1] schedule_timeout+0x14f/0x240 [ 174.217008][ C1] ? run_local_timers+0x120/0x120 [ 174.222029][ C1] rcu_gp_kthread+0xed8/0x1770 [ 174.226803][ C1] kthread+0x332/0x350 [ 174.233816][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 174.238915][ C1] ? kthread_blkcg+0xe0/0xe0 [ 174.243497][ C1] ret_from_fork+0x24/0x30 [ 174.247918][ C1] NMI backtrace for cpu 1 [ 174.252244][ C1] CPU: 1 PID: 3015 Comm: kworker/1:57 Not tainted 5.5.0-rc5-syzkaller #0 [ 174.260637][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 174.270686][ C1] Workqueue: rcu_gp process_srcu [ 174.275606][ C1] Call Trace: [ 174.278877][ C1] [ 174.281732][ C1] dump_stack+0x1fb/0x318 [ 174.286056][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 174.290897][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 174.297039][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 174.303109][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 174.309090][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 174.314973][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 174.320080][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 174.325297][ C1] ? trace_hardirqs_off+0x74/0x80 [ 174.330312][ C1] update_process_times+0x12d/0x180 [ 174.335505][ C1] tick_sched_timer+0x263/0x420 [ 174.340347][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 174.345974][ C1] __hrtimer_run_queues+0x403/0x840 [ 174.351286][ C1] hrtimer_interrupt+0x38c/0xda0 [ 174.356255][ C1] ? debug_smp_processor_id+0x9/0x20 [ 174.361638][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 174.367191][ C1] apic_timer_interrupt+0xf/0x20 [ 174.372124][ C1] [ 174.375058][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 [ 174.381319][ C1] Code: 84 f4 3b 00 5b 5d c3 cc 48 8b 04 24 65 48 8b 0c 25 c0 1d 02 00 65 8b 15 38 5f 8b 7e f7 c2 00 01 1f 00 75 2c 8b 91 80 13 00 00 <83> fa 02 75 21 48 8b 91 88 13 00 00 48 8b 32 48 8d 7e 01 8b 89 84 [ 174.401052][ C1] RSP: 0018:ffffc9000870f9b8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 174.409460][ C1] RAX: ffffffff81489244 RBX: ffffea00027ba400 RCX: ffff88809e6ae000 [ 174.417429][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00027ba400 [ 174.425408][ C1] RBP: ffffc9000870f9f8 R08: dffffc0000000000 R09: fffffbfff124248a [ 174.433379][ C1] R10: fffffbfff124248a R11: 0000000000000000 R12: ffff888093235520 [ 174.441357][ C1] R13: dffffc0000000000 R14: 1ffff11012646aa4 R15: ffff8880a8269778 [ 174.449333][ C1] ? free_thread_stack+0x124/0x590 [ 174.454439][ C1] ? free_thread_stack+0x124/0x590 [ 174.459542][ C1] put_task_stack+0xa3/0x130 [ 174.464123][ C1] finish_task_switch+0x3f1/0x550 [ 174.469160][ C1] __schedule+0x9a8/0xcc0 [ 174.473597][ C1] ? ___preempt_schedule+0x16/0x18 [ 174.478705][ C1] preempt_schedule+0xdb/0x120 [ 174.483467][ C1] ___preempt_schedule+0x16/0x18 [ 174.488410][ C1] _raw_spin_unlock_irq+0x77/0x80 [ 174.493479][ C1] srcu_reschedule+0x9a/0xf0 [ 174.498151][ C1] process_srcu+0x566/0xd20 [ 174.502679][ C1] process_one_work+0x7ef/0x10d0 [ 174.507643][ C1] worker_thread+0xc01/0x1630 [ 174.512344][ C1] kthread+0x332/0x350 [ 174.516408][ C1] ? rcu_lock_release+0x30/0x30 [ 174.521261][ C1] ? kthread_blkcg+0xe0/0xe0 [ 174.525848][ C1] ret_from_fork+0x24/0x30