[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 45.355513][ T23] audit: type=1800 audit(1575361076.175:25): pid=8105 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 45.375832][ T23] audit: type=1800 audit(1575361076.175:26): pid=8105 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 45.396983][ T23] audit: type=1800 audit(1575361076.185:27): pid=8105 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 '10.128.0.34' (ECDSA) to the list of known hosts. 2019/12/03 08:18:06 fuzzer started 2019/12/03 08:18:08 dialing manager at 10.128.0.26:38907 2019/12/03 08:18:08 syscalls: 2697 2019/12/03 08:18:08 code coverage: enabled 2019/12/03 08:18:08 comparison tracing: enabled 2019/12/03 08:18:08 extra coverage: extra coverage is not supported by the kernel 2019/12/03 08:18:08 setuid sandbox: enabled 2019/12/03 08:18:08 namespace sandbox: enabled 2019/12/03 08:18:08 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 08:18:08 fault injection: enabled 2019/12/03 08:18:08 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 08:18:08 net packet injection: enabled 2019/12/03 08:18:08 net device setup: enabled 2019/12/03 08:18:08 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 08:18:08 devlink PCI setup: PCI device 0000:00:10.0 is not available 08:18:09 executing program 0: openat$userio(0xffffffffffffff9c, &(0x7f00000001c0)='/dev/userio\x00', 0x0, 0x0) r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='fd/3\x00') read$usbfs(r0, 0x0, 0x0) 08:18:09 executing program 1: unshare(0x20400) r0 = open(&(0x7f00000001c0)='./file0\x00', 0x80040, 0x0) fcntl$setlease(r0, 0x400, 0x0) fcntl$setlease(r0, 0x400, 0x2) syzkaller login: [ 59.113264][ T8272] IPVS: ftp: loaded support on port[0] = 21 [ 59.274847][ T8272] chnl_net:caif_netlink_parms(): no params data found 08:18:10 executing program 2: clone(0x2000000002000100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = syz_open_dev$binderN(&(0x7f00000000c0)='/dev/binder#\x00', 0x0, 0x0) ioctl$BINDER_WRITE_READ(r0, 0x4b40, &(0x7f0000000600)={0xffffffffffffff22, 0x0, 0x0, 0x0, 0x0, 0x0}) [ 59.316375][ T8272] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.341948][ T8272] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.355060][ T8272] device bridge_slave_0 entered promiscuous mode [ 59.383167][ T8272] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.390353][ T8272] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.391573][ T8275] IPVS: ftp: loaded support on port[0] = 21 [ 59.422671][ T8272] device bridge_slave_1 entered promiscuous mode [ 59.492375][ T8272] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.528585][ T8272] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.548778][ T8277] IPVS: ftp: loaded support on port[0] = 21 08:18:10 executing program 3: r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f00000000c0)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-twofish-3way\x00'}, 0x58) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000000080)="ab553fec94248c32e27d04000000288a", 0x10) r1 = accept$alg(r0, 0x0, 0x0) sendmsg$alg(r1, &(0x7f00000002c0)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000180)=[@op={0x18, 0x117, 0x3, 0x1}], 0x18}, 0x0) write$binfmt_script(r1, &(0x7f0000000600)=ANY=[], 0xfec8) recvmmsg(r1, &(0x7f0000004640)=[{{0x0, 0x0, &(0x7f0000000180)=[{&(0x7f00000007c0)=""/4096, 0x1000}], 0x1}}], 0x8, 0x0, 0x0) [ 59.603160][ T8272] team0: Port device team_slave_0 added [ 59.653222][ T8272] team0: Port device team_slave_1 added [ 59.724782][ T8275] chnl_net:caif_netlink_parms(): no params data found 08:18:10 executing program 4: r0 = socket$can_bcm(0x1d, 0x2, 0x2) connect(r0, &(0x7f0000000740)=@ll={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @link_local}, 0x80) sendmmsg$inet(r0, &(0x7f0000001b00)=[{{0x0, 0x0, &(0x7f0000000400)=[{&(0x7f0000000140)="763c0f9e098798068b7d0bc4f9", 0xd}, {&(0x7f0000000180)="a7057167fb45dc347bbe1e816198b47931deac788ad1168cfe3b29e5cb1467c1906d380b380525b3e7158708", 0x2c}], 0x2}}], 0x1, 0x0) [ 59.795067][ T8272] device hsr_slave_0 entered promiscuous mode [ 59.854501][ T8272] device hsr_slave_1 entered promiscuous mode [ 59.953695][ T8280] IPVS: ftp: loaded support on port[0] = 21 08:18:10 executing program 5: r0 = socket$inet_udplite(0x2, 0x2, 0x88) ioctl(r0, 0x1000008912, &(0x7f0000000000)="0800b5055e0bcfe87b0071") r1 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$SO_BINDTODEVICE(r1, 0x1, 0x19, &(0x7f0000000080)='syz_tun\x00', 0x10) connect$inet(r1, &(0x7f0000000000)={0x2, 0x0, @multicast1}, 0x10) r2 = socket$inet(0x2, 0x2, 0x0) setsockopt$inet_mreqsrc(r2, 0x0, 0x27, &(0x7f00000000c0)={@multicast1, @local, @broadcast}, 0xc) setsockopt$inet_mreqn(r1, 0x0, 0x20, 0x0, 0x4) [ 60.059213][ T8282] IPVS: ftp: loaded support on port[0] = 21 [ 60.095693][ T8272] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.154327][ T8272] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.218047][ T8272] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.284917][ T8275] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.292409][ T8275] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.300339][ T8275] device bridge_slave_0 entered promiscuous mode [ 60.312348][ T8275] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.319661][ T8275] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.328471][ T8275] device bridge_slave_1 entered promiscuous mode [ 60.337668][ T8277] chnl_net:caif_netlink_parms(): no params data found [ 60.348572][ T8272] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.452825][ T8285] IPVS: ftp: loaded support on port[0] = 21 [ 60.469216][ T8275] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.482320][ T8275] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.510473][ T8275] team0: Port device team_slave_0 added [ 60.529907][ T8275] team0: Port device team_slave_1 added [ 60.535879][ T8277] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.543864][ T8277] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.553473][ T8277] device bridge_slave_0 entered promiscuous mode [ 60.562771][ T8277] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.569837][ T8277] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.577639][ T8277] device bridge_slave_1 entered promiscuous mode [ 60.608835][ T8277] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.622639][ T8277] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.713970][ T8275] device hsr_slave_0 entered promiscuous mode [ 60.751459][ T8275] device hsr_slave_1 entered promiscuous mode [ 60.801179][ T8275] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.830787][ T8277] team0: Port device team_slave_0 added [ 60.840609][ T8277] team0: Port device team_slave_1 added [ 60.886916][ T8275] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 60.943991][ T8280] chnl_net:caif_netlink_parms(): no params data found [ 60.987683][ T8275] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 61.033381][ T8275] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 61.096967][ T8280] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.104948][ T8280] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.112940][ T8280] device bridge_slave_0 entered promiscuous mode [ 61.122132][ T8280] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.129169][ T8280] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.137221][ T8280] device bridge_slave_1 entered promiscuous mode [ 61.144436][ T8275] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 61.193639][ T8282] chnl_net:caif_netlink_parms(): no params data found [ 61.253911][ T8277] device hsr_slave_0 entered promiscuous mode [ 61.301662][ T8277] device hsr_slave_1 entered promiscuous mode [ 61.341159][ T8277] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.376269][ T8280] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.437411][ T8280] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.479357][ T8280] team0: Port device team_slave_0 added [ 61.490623][ T8277] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 61.555838][ T8277] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 61.613569][ T8277] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 61.654556][ T8277] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.704171][ T8280] team0: Port device team_slave_1 added [ 61.710370][ T8282] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.717616][ T8282] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.725767][ T8282] device bridge_slave_0 entered promiscuous mode [ 61.734805][ T8285] chnl_net:caif_netlink_parms(): no params data found [ 61.755967][ T8282] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.764987][ T8282] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.774012][ T8282] device bridge_slave_1 entered promiscuous mode [ 61.792538][ T8282] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.823318][ T8282] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.872794][ T8280] device hsr_slave_0 entered promiscuous mode [ 61.921434][ T8280] device hsr_slave_1 entered promiscuous mode [ 61.971147][ T8280] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.986309][ T8285] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.993577][ T8285] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.001926][ T8285] device bridge_slave_0 entered promiscuous mode [ 62.010892][ T8272] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.028425][ T8282] team0: Port device team_slave_0 added [ 62.035970][ T8282] team0: Port device team_slave_1 added [ 62.042413][ T8285] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.049493][ T8285] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.057323][ T8285] device bridge_slave_1 entered promiscuous mode [ 62.079931][ T8287] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.088293][ T8287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.107079][ T8285] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.138867][ T8285] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.153825][ T8272] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.194617][ T8282] device hsr_slave_0 entered promiscuous mode [ 62.231484][ T8282] device hsr_slave_1 entered promiscuous mode [ 62.271176][ T8282] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.292432][ T8280] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 62.333391][ T8280] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 62.377329][ T8285] team0: Port device team_slave_0 added [ 62.390308][ T8285] team0: Port device team_slave_1 added [ 62.396852][ T8280] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 62.454618][ T8287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.463716][ T8287] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.472423][ T8287] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.479701][ T8287] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.543967][ T8285] device hsr_slave_0 entered promiscuous mode [ 62.581650][ T8285] device hsr_slave_1 entered promiscuous mode [ 62.621050][ T8285] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.629136][ T8280] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 62.688046][ T8287] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.695859][ T8287] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.704991][ T8287] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.713434][ T8287] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.720452][ T8287] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.728939][ T8287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.740166][ T8275] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.760220][ T8275] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.775762][ T8282] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 62.805148][ T8282] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 62.856099][ T8282] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 62.925196][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.933531][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.941233][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.970036][ T8277] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.985215][ T8282] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 63.013859][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.023050][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.031670][ T48] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.038813][ T48] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.046538][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.055332][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.063880][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.072524][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.080775][ T48] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.087864][ T48] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.095346][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.104174][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.112581][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.121056][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.129240][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.137546][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.146989][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.155299][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.173868][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.194761][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.203125][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.210776][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.219990][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.229948][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.238821][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.247287][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.255604][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.269531][ T8275] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.281825][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.293761][ T8277] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.312490][ T2728] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.326517][ T2728] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.336152][ T2728] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.345179][ T2728] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.352902][ T2728] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.375096][ T8285] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 63.413249][ T8285] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 63.462881][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.470421][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.483688][ T8275] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.500183][ T8272] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.523535][ T8285] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 63.576230][ T8285] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 63.636311][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.643979][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.652038][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.660477][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.669419][ T48] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.676501][ T48] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.684097][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.693312][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.702173][ T48] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.709392][ T48] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.716995][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.725570][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.734471][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.743149][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.753308][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.763150][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.777464][ T8280] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.798315][ T8277] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.819275][ T8277] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.845357][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.854107][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.862064][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.870229][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.879265][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.888053][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.896721][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.939129][ T8287] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.951310][ T8287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.996248][ T8280] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.074324][ T8285] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.097647][ T8285] 8021q: adding VLAN 0 to HW filter on device team0 [ 169.020928][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 169.027721][ C0] rcu: 0-...!: (10499 ticks this GP) idle=912/1/0x4000000000000002 softirq=11617/11617 fqs=3 [ 169.038191][ C0] (t=10500 jiffies g=6617 q=296) [ 169.043212][ C0] rcu: rcu_preempt kthread starved for 10494 jiffies! g6617 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 169.054299][ C0] rcu: RCU grace-period kthread stack dump: [ 169.060175][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 169.068063][ C0] Call Trace: [ 169.071349][ C0] __schedule+0x9a0/0xcc0 [ 169.075688][ C0] schedule+0x181/0x210 [ 169.079834][ C0] schedule_timeout+0x14f/0x240 [ 169.084674][ C0] ? run_local_timers+0x120/0x120 [ 169.089705][ C0] rcu_gp_kthread+0xed8/0x1770 [ 169.094464][ C0] kthread+0x332/0x350 [ 169.098515][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 169.103614][ C0] ? kthread_blkcg+0xe0/0xe0 [ 169.108192][ C0] ret_from_fork+0x24/0x30 [ 169.112610][ C0] NMI backtrace for cpu 0 [ 169.116932][ C0] CPU: 0 PID: 8293 Comm: blkid Not tainted 5.4.0-syzkaller #0 [ 169.124552][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 169.134681][ C0] Call Trace: [ 169.137949][ C0] [ 169.141226][ C0] dump_stack+0x1fb/0x318 [ 169.145544][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 169.150382][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 169.156525][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 169.162579][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 169.168545][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 169.174422][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 169.179529][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 169.184719][ C0] ? trace_hardirqs_off+0x74/0x80 [ 169.189731][ C0] update_process_times+0x12d/0x180 [ 169.194917][ C0] tick_sched_timer+0x263/0x420 [ 169.199846][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 169.205379][ C0] __hrtimer_run_queues+0x403/0x840 [ 169.210579][ C0] hrtimer_interrupt+0x38c/0xda0 [ 169.215636][ C0] ? debug_smp_processor_id+0x9/0x20 [ 169.220909][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 169.226442][ C0] apic_timer_interrupt+0xf/0x20 [ 169.231364][ C0] [ 169.234292][ C0] RIP: 0010:mod_memcg_page_state+0x0/0x190 [ 169.240090][ C0] Code: 48 8b 3b e8 12 c1 5f 00 eb 0c e8 0b 29 2e 00 eb 05 e8 04 29 2e 00 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 <55> 48 89 e5 41 57 41 56 41 54 53 41 89 f6 48 89 fb e8 da 28 2e 00 [ 169.259681][ C0] RSP: 0018:ffffc90001f97b90 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 169.268455][ C0] RAX: 1ffff11012032941 RBX: ffff888090194a08 RCX: 0000000000000000 [ 169.276425][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002319c00 [ 169.284391][ C0] RBP: ffffc90001f97bd0 R08: 000000000003a768 R09: ffffed10131282ff [ 169.292367][ C0] R10: ffffed10131282ff R11: 0000000000000000 R12: ffff888090194aa0 [ 169.300331][ C0] R13: dffffc0000000000 R14: 1ffff11012032954 R15: ffff8880989417e8 [ 169.309194][ C0] ? free_thread_stack+0x168/0x590 [ 169.314298][ C0] put_task_stack+0xa3/0x130 [ 169.318893][ C0] finish_task_switch+0x3f1/0x550 [ 169.323920][ C0] __schedule+0x9a8/0xcc0 [ 169.328250][ C0] ? ___preempt_schedule+0x16/0x18 [ 169.333371][ C0] preempt_schedule+0xdb/0x120 [ 169.339090][ C0] ___preempt_schedule+0x16/0x18 [ 169.344282][ C0] ? do_exit+0x1431/0x2020 [ 169.348688][ C0] _raw_write_unlock_irq+0x77/0x80 [ 169.353799][ C0] do_exit+0x1431/0x2020 [ 169.358054][ C0] do_group_exit+0x15c/0x2b0 [ 169.362673][ C0] __do_sys_exit_group+0x17/0x20 [ 169.367598][ C0] __se_sys_exit_group+0x14/0x20 [ 169.372522][ C0] __x64_sys_exit_group+0x3b/0x40 [ 169.377579][ C0] do_syscall_64+0xf7/0x1c0 [ 169.382093][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 169.387994][ C0] RIP: 0033:0x7f37ef3631e8 [ 169.392575][ C0] Code: Bad RIP value. [ 169.396633][ C0] RSP: 002b:00007ffe44971798 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 169.405117][ C0] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f37ef3631e8 [ 169.413079][ C0] RDX: 0000000000000002 RSI: 000000000000003c RDI: 0000000000000002 [ 169.421048][ C0] RBP: 00007f37ef638840 R08: 00000000000000e7 R09: ffffffffffffffa8 [ 169.429095][ C0] R10: 00007f37ef63e740 R11: 0000000000000246 R12: 00007f37ef638840 [ 169.437791][ C0] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000