[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 43.703233][ T26] audit: type=1800 audit(1578447836.573:25): pid=8166 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 43.730851][ T26] audit: type=1800 audit(1578447836.573:26): pid=8166 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 43.784192][ T26] audit: type=1800 audit(1578447836.573:27): pid=8166 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 '10.128.10.13' (ECDSA) to the list of known hosts. 2020/01/08 01:44:06 fuzzer started 2020/01/08 01:44:08 dialing manager at 10.128.0.26:35703 2020/01/08 01:44:08 syscalls: 2824 2020/01/08 01:44:08 code coverage: enabled 2020/01/08 01:44:08 comparison tracing: enabled 2020/01/08 01:44:08 extra coverage: enabled 2020/01/08 01:44:08 setuid sandbox: enabled 2020/01/08 01:44:08 namespace sandbox: enabled 2020/01/08 01:44:08 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 01:44:08 fault injection: enabled 2020/01/08 01:44:08 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 01:44:08 net packet injection: enabled 2020/01/08 01:44:08 net device setup: enabled 2020/01/08 01:44:08 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 01:44:08 devlink PCI setup: PCI device 0000:00:10.0 is not available 01:44:09 executing program 0: r0 = socket$can_bcm(0x1d, 0x2, 0x2) connect$can_bcm(r0, &(0x7f0000000000), 0x10) r1 = socket$unix(0x1, 0x1, 0x0) ioctl$ifreq_SIOCGIFINDEX_vcan(r1, 0x8933, &(0x7f0000000100)={'vxcan1\x00', 0x0}) sendmsg$can_bcm(r0, &(0x7f0000000480)={&(0x7f0000000240)={0x1d, r2}, 0x10, &(0x7f0000000300)={&(0x7f0000000280)={0x1, 0x7ab0715dca68fab3, 0x0, {}, {}, {}, 0x1, @canfd={{}, 0x0, 0x0, 0x0, 0x0, "51d5205e4ca4b888d40047c37321760319cfff34bdfeff767c815dad738690b20cf465f6ef18683b77224a9922dd0c52d6f5d97258d9a57813477b6fc92af87b"}}, 0x80}}, 0x0) 01:44:09 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'\x00', 0x10005812}) io_setup(0x2, &(0x7f0000000240)=0x0) io_submit(r1, 0x2, &(0x7f00000006c0)=[&(0x7f0000000280)={0x0, 0x0, 0x0, 0x0, 0x0, r0, &(0x7f0000000340)="81", 0x19, 0x2000000000000200}]) r2 = socket(0xa, 0x3, 0x5) ioctl$sock_ifreq(r2, 0x8914, &(0x7f0000000200)={'\x00', @ifru_map={0x7}}) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000200)='/dev/zero\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x2000)=nil, 0x2000, 0x0, 0x12, r3, 0x0) syzkaller login: [ 56.951467][ T8331] IPVS: ftp: loaded support on port[0] = 21 [ 57.018001][ T8333] IPVS: ftp: loaded support on port[0] = 21 01:44:10 executing program 2: personality(0xd21d0356f446a02) ppoll(0x0, 0x0, &(0x7f0000000200)={0x0, 0x989680}, 0x0, 0x0) [ 57.115508][ T8331] chnl_net:caif_netlink_parms(): no params data found [ 57.178813][ T8331] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.201000][ T8331] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.208975][ T8331] device bridge_slave_0 entered promiscuous mode [ 57.253008][ T8331] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.260114][ T8331] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.272440][ T8331] device bridge_slave_1 entered promiscuous mode [ 57.307555][ T8337] IPVS: ftp: loaded support on port[0] = 21 [ 57.319477][ T8333] chnl_net:caif_netlink_parms(): no params data found [ 57.339641][ T8331] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.375043][ T8331] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 01:44:10 executing program 3: mkdir(&(0x7f0000000000)='./file0\x00', 0x0) mount(&(0x7f0000000240)=@nullb='/dev/nullb0\x00', &(0x7f0000000280)='./file0\x00', &(0x7f00000002c0)='hugetlbfs\x00', 0x0, 0x0) [ 57.447613][ T8331] team0: Port device team_slave_0 added [ 57.466122][ T8333] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.475547][ T8333] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.496450][ T8333] device bridge_slave_0 entered promiscuous mode [ 57.524529][ T8331] team0: Port device team_slave_1 added [ 57.530273][ T8333] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.551037][ T8333] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.558870][ T8333] device bridge_slave_1 entered promiscuous mode 01:44:10 executing program 4: r0 = open(&(0x7f0000000300)='.\x00', 0x0, 0x0) mkdirat(r0, &(0x7f0000000280)='\x13\x13w\xc5\xfc5\xd4\x14T\xd5\xd4\x1d)\xad\x1a`)Y\x81F\xe6\xbe\x16nA\xad\r\xbd@T\x03<\x9f3\xbb\xda\x82$\xa2\xf3\xd7r\xe7cnH\xb3<\xbfp\x83r\xe8\xf1\xb9\x93>\xc5\x12wC\xbe\"\x06 \x9e\xf0-\xf9\xcb\xf2\xf6\xe8\x80\xd38/\x00', 0x0) r1 = timerfd_create(0x0, 0x0) mount$bpf(0x0, 0x0, 0x0, 0x0, &(0x7f0000000200)=ANY=[@ANYBLOB='uid=', @ANYRESHEX=r1]) mount(0x0, &(0x7f0000000340)='\x13\x13w\xc5\xfc5\xd4\x14T\xd5\xd4\x1d)\xad\x1a`)Y\x81F\xe6\xbe\x16nA\xad\r\xbd@T\x03<\x9f3\xbb\xda\x82$\xa2\xf3\xd7r\xe7cnH\xb3<\xbfp\x83r\xe8\xf1\xb9\x93>\xc5\x12wC\xbe\"\x06 \x9e\xf0-\xf9\xcb\xf2\xf6\xe8\x80\xd38/\x00', &(0x7f0000000000)='tracefs\x00', 0x0, &(0x7f0000000200)) [ 57.617042][ T8333] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.735324][ T8331] device hsr_slave_0 entered promiscuous mode 01:44:10 executing program 5: r0 = socket$netlink(0x10, 0x3, 0x0) writev(r0, &(0x7f0000000040)=[{&(0x7f0000000080)="39000000130009006900000000000000ab0080480f000000460001070000001419000a000f000000f00003f5000000000000ef38bf461e59d7", 0x39}], 0x1) [ 57.831164][ T8331] device hsr_slave_1 entered promiscuous mode [ 57.935510][ T8333] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.960610][ T8339] IPVS: ftp: loaded support on port[0] = 21 [ 57.961516][ T8343] IPVS: ftp: loaded support on port[0] = 21 [ 58.018595][ T8333] team0: Port device team_slave_0 added [ 58.026097][ T8333] team0: Port device team_slave_1 added [ 58.037724][ T8341] IPVS: ftp: loaded support on port[0] = 21 [ 58.060106][ T8337] chnl_net:caif_netlink_parms(): no params data found [ 58.172296][ T8333] device hsr_slave_0 entered promiscuous mode [ 58.221067][ T8333] device hsr_slave_1 entered promiscuous mode [ 58.250800][ T8333] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 58.258568][ T8333] Cannot create hsr debugfs directory [ 58.297985][ T8331] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.353889][ T8331] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.426618][ T8331] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.491975][ T8337] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.499071][ T8337] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.506905][ T8337] device bridge_slave_0 entered promiscuous mode [ 58.515050][ T8337] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.522262][ T8337] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.529974][ T8337] device bridge_slave_1 entered promiscuous mode [ 58.552953][ T8331] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.614627][ T8337] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.639042][ T8337] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.669710][ T8337] team0: Port device team_slave_0 added [ 58.715650][ T8337] team0: Port device team_slave_1 added [ 58.723641][ T8339] chnl_net:caif_netlink_parms(): no params data found [ 58.904114][ T8337] device hsr_slave_0 entered promiscuous mode [ 58.962970][ T8337] device hsr_slave_1 entered promiscuous mode [ 59.020957][ T8337] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 59.028677][ T8337] Cannot create hsr debugfs directory [ 59.065340][ T8339] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.072870][ T8339] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.080444][ T8339] device bridge_slave_0 entered promiscuous mode [ 59.105048][ T8333] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 59.153988][ T8343] chnl_net:caif_netlink_parms(): no params data found [ 59.162728][ T8333] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 59.212795][ T8339] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.219996][ T8339] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.227836][ T8339] device bridge_slave_1 entered promiscuous mode [ 59.245695][ T8341] chnl_net:caif_netlink_parms(): no params data found [ 59.264796][ T8333] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.317204][ T8339] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.329257][ T8339] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.346616][ T8333] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 59.454039][ T8341] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.461306][ T8341] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.469056][ T8341] device bridge_slave_0 entered promiscuous mode [ 59.484057][ T8339] team0: Port device team_slave_0 added [ 59.505780][ T8341] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.513079][ T8341] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.521368][ T8341] device bridge_slave_1 entered promiscuous mode [ 59.528272][ T8343] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.535706][ T8343] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.543830][ T8343] device bridge_slave_0 entered promiscuous mode [ 59.553244][ T8343] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.560287][ T8343] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.568099][ T8343] device bridge_slave_1 entered promiscuous mode [ 59.579834][ T8339] team0: Port device team_slave_1 added [ 59.598802][ T8337] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 59.668193][ T8331] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.684242][ T8341] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.694661][ T8337] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 59.736698][ T8337] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 59.795217][ T8343] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.873630][ T8339] device hsr_slave_0 entered promiscuous mode [ 59.920910][ T8339] device hsr_slave_1 entered promiscuous mode [ 59.960866][ T8339] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 59.968609][ T8339] Cannot create hsr debugfs directory [ 59.975603][ T8341] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.995829][ T8341] team0: Port device team_slave_0 added [ 60.001817][ T8337] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 60.034852][ T8343] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.056044][ T8341] team0: Port device team_slave_1 added [ 60.083560][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.092248][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.113806][ T8331] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.164249][ T8341] device hsr_slave_0 entered promiscuous mode [ 60.221043][ T8341] device hsr_slave_1 entered promiscuous mode [ 60.293352][ T8341] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 60.300990][ T8341] Cannot create hsr debugfs directory [ 60.314328][ T8343] team0: Port device team_slave_0 added [ 60.338248][ T8343] team0: Port device team_slave_1 added [ 60.347438][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.357946][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.366641][ T4012] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.373816][ T4012] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.382584][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.407507][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.417516][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.426013][ T2675] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.433105][ T2675] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.466204][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.475242][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.484332][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.494469][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.507191][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.546287][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.555819][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.564900][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.573410][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.582060][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.590342][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.644114][ T8343] device hsr_slave_0 entered promiscuous mode [ 60.701119][ T8343] device hsr_slave_1 entered promiscuous mode [ 60.740806][ T8343] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 60.748399][ T8343] Cannot create hsr debugfs directory [ 60.754870][ T8331] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.829175][ T8339] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 60.904116][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.911658][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.920065][ T8331] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.931025][ T8337] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.942983][ T8341] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 61.002469][ T8339] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 61.049758][ T8339] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 61.092888][ T8341] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 61.143258][ T8333] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.150083][ T8339] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 61.189070][ T8337] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.196621][ T8341] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 61.253396][ T8341] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 61.330921][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.339038][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.346885][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 61.355647][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.364720][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 61.373234][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.406515][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.414813][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.422640][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.435502][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.444119][ T4012] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.451204][ T4012] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.458941][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.467604][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.475960][ T4012] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.483065][ T4012] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.490936][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.498561][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.512497][ T8331] device veth0_vlan entered promiscuous mode [ 61.528400][ T8333] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.536590][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.545579][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.562549][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.571764][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.580180][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.589222][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.617807][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.626575][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.635047][ T4012] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.642107][ T4012] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.649671][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.658934][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.668050][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.675893][ T8343] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 61.732871][ T8343] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 61.773014][ T8343] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 61.813902][ T8343] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 61.877361][ T8331] device veth1_vlan entered promiscuous mode [ 61.898512][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.906685][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.915142][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.924460][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.933656][ T2675] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.940736][ T2675] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.948527][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.957243][ T2675] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.984091][ T8337] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.000835][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.009243][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.018251][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.026966][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.035855][ T4012] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.064754][ T8339] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.088361][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.101323][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.109965][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.118566][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.143205][ T8341] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.156940][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.174036][ T2792] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 167.180627][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 167.187517][ C0] rcu: 0-...!: (10499 ticks this GP) idle=1a2/1/0x4000000000000002 softirq=11040/11045 fqs=42 [ 167.198062][ C0] (t=10500 jiffies g=6381 q=91) [ 167.202993][ C0] rcu: rcu_preempt kthread starved for 10415 jiffies! g6381 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 167.214077][ C0] rcu: RCU grace-period kthread stack dump: [ 167.219971][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 167.227855][ C0] Call Trace: [ 167.231141][ C0] __schedule+0x9a0/0xcc0 [ 167.235467][ C0] schedule+0x181/0x210 [ 167.239608][ C0] schedule_timeout+0x14f/0x240 [ 167.244442][ C0] ? run_local_timers+0x120/0x120 [ 167.249459][ C0] rcu_gp_kthread+0xed8/0x1770 [ 167.254216][ C0] kthread+0x332/0x350 [ 167.258273][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 167.263371][ C0] ? kthread_blkcg+0xe0/0xe0 [ 167.267952][ C0] ret_from_fork+0x24/0x30 [ 167.272394][ C0] NMI backtrace for cpu 0 [ 167.276704][ C0] CPU: 0 PID: 2792 Comm: kworker/0:3 Not tainted 5.5.0-rc5-syzkaller #0 [ 167.285002][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.295069][ C0] Workqueue: events linkwatch_event [ 167.300369][ C0] Call Trace: [ 167.303640][ C0] [ 167.306486][ C0] dump_stack+0x1fb/0x318 [ 167.310808][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 167.315639][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 167.321796][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 167.327853][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 167.333836][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 167.339725][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 167.344833][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 167.350029][ C0] ? trace_hardirqs_off+0x74/0x80 [ 167.355047][ C0] update_process_times+0x12d/0x180 [ 167.360235][ C0] tick_sched_timer+0x263/0x420 [ 167.365073][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 167.370608][ C0] __hrtimer_run_queues+0x403/0x840 [ 167.375809][ C0] hrtimer_interrupt+0x38c/0xda0 [ 167.380750][ C0] ? debug_smp_processor_id+0x9/0x20 [ 167.386026][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 167.391561][ C0] apic_timer_interrupt+0xf/0x20 [ 167.396496][ C0] [ 167.399431][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 [ 167.405590][ C0] 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 [ 167.425313][ C0] RSP: 0018:ffffc90007f776f8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 167.433732][ C0] RAX: ffffffff81489244 RBX: ffffea00024068c0 RCX: ffff88809f6b4280 [ 167.441704][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00024068c0 [ 167.449677][ C0] RBP: ffffc90007f77738 R08: dffffc0000000000 R09: fffffbfff124248a [ 167.457648][ C0] R10: fffffbfff124248a R11: 0000000000000000 R12: ffff88808e990e20 [ 167.465617][ C0] R13: dffffc0000000000 R14: 1ffff11011d321c4 R15: ffff8880972a34f8 [ 167.473613][ C0] ? free_thread_stack+0x124/0x590 [ 167.478738][ C0] ? free_thread_stack+0x124/0x590 [ 167.483856][ C0] put_task_stack+0xa3/0x130 [ 167.488471][ C0] finish_task_switch+0x3f1/0x550 [ 167.493512][ C0] __schedule+0x9a8/0xcc0 [ 167.497858][ C0] ? ___preempt_schedule+0x16/0x18 [ 167.502969][ C0] preempt_schedule+0xdb/0x120 [ 167.507733][ C0] ___preempt_schedule+0x16/0x18 [ 167.512671][ C0] ? vprintk_emit+0x2fe/0x3a0 [ 167.517349][ C0] ? vprintk_emit+0x368/0x3a0 [ 167.522026][ C0] vprintk_emit+0x36d/0x3a0 [ 167.526537][ C0] vprintk_default+0x28/0x30 [ 167.531125][ C0] vprintk_func+0x158/0x170 [ 167.535727][ C0] printk+0x62/0x8d [ 167.539532][ C0] ? addrconf_notify+0xd37/0x3c90 [ 167.544542][ C0] ? addrconf_notify+0x779/0x3c90 [ 167.549556][ C0] addrconf_notify+0x2c8d/0x3c90 [ 167.554498][ C0] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 167.559774][ C0] ? __local_bh_enable_ip+0x13a/0x240 [ 167.565140][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 167.570689][ C0] ? trace_hardirqs_on+0x74/0x80 [ 167.575636][ C0] ? __local_bh_enable_ip+0x13a/0x240 [ 167.581002][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 167.586541][ C0] ? tls_dev_event+0x619/0xc00 [ 167.591301][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 167.596842][ C0] ? ip6mr_device_event+0x1ee/0x210 [ 167.602036][ C0] raw_notifier_call_chain+0xec/0x190 [ 167.607411][ C0] netdev_state_change+0x147/0x1f0 [ 167.612519][ C0] linkwatch_do_dev+0x10e/0x160 [ 167.617361][ C0] __linkwatch_run_queue+0x446/0x730 [ 167.622640][ C0] linkwatch_event+0x4c/0x60 [ 167.627218][ C0] process_one_work+0x7ef/0x10d0 [ 167.632162][ C0] worker_thread+0xc01/0x1630 [ 167.636844][ C0] kthread+0x332/0x350 [ 167.640899][ C0] ? rcu_lock_release+0x30/0x30 [ 167.645741][ C0] ? kthread_blkcg+0xe0/0xe0 [ 167.650342][ C0] ret_from_fork+0x24/0x30