[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 44.891869][ T23] audit: type=1800 audit(1575393901.725:25): pid=8093 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 44.911228][ T23] audit: type=1800 audit(1575393901.725:26): pid=8093 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.943814][ T23] audit: type=1800 audit(1575393901.725:27): pid=8093 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 '10.128.1.61' (ECDSA) to the list of known hosts. 2019/12/03 17:25:14 fuzzer started 2019/12/03 17:25:15 dialing manager at 10.128.0.26:42111 2019/12/03 17:25:15 syscalls: 2689 2019/12/03 17:25:15 code coverage: enabled 2019/12/03 17:25:15 comparison tracing: enabled 2019/12/03 17:25:15 extra coverage: extra coverage is not supported by the kernel 2019/12/03 17:25:15 setuid sandbox: enabled 2019/12/03 17:25:15 namespace sandbox: enabled 2019/12/03 17:25:15 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 17:25:15 fault injection: enabled 2019/12/03 17:25:15 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 17:25:15 net packet injection: enabled 2019/12/03 17:25:15 net device setup: enabled 2019/12/03 17:25:15 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 17:25:15 devlink PCI setup: PCI device 0000:00:10.0 is not available 17:25:16 executing program 0: r0 = socket$netlink(0x10, 0x3, 0x8000000004) r1 = socket$inet_udplite(0x2, 0x2, 0x88) r2 = syz_open_dev$audion(&(0x7f0000000100)='/dev/audio#\x00', 0x6, 0x0) ioctl$USBDEVFS_DROP_PRIVILEGES(r2, 0x4004551e, &(0x7f0000000140)=0x7f) getsockopt$sock_cred(r1, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setuid(r3) writev(r0, &(0x7f0000000200)=[{&(0x7f0000000240)="580000001400192340834b80040d8c560a067fbc45ff810500000000000058000b480400945f64009400050028925a01000000000000008000f0fffeffe809000000fff5dd000000100001000c0810004149004001040800", 0x58}], 0x1) 17:25:17 executing program 1: r0 = perf_event_open(&(0x7f0000000140)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, r0, 0x2) syzkaller login: [ 60.302454][ T8258] IPVS: ftp: loaded support on port[0] = 21 17:25:17 executing program 2: mkdir(&(0x7f0000000300)='./file0\x00', 0x0) mount(0x0, &(0x7f0000000400)='./file0\x00', &(0x7f0000000280)='tmpfs\x00', 0x0, 0x0) lsetxattr$system_posix_acl(&(0x7f00000000c0)='./file0\x00', &(0x7f0000000140)='system.posix_acl_access\x00', &(0x7f0000000000), 0x24, 0x0) umount2(&(0x7f0000000040)='./file0\x00', 0x0) [ 60.478493][ T8258] chnl_net:caif_netlink_parms(): no params data found [ 60.504104][ T8261] IPVS: ftp: loaded support on port[0] = 21 [ 60.594484][ T8263] IPVS: ftp: loaded support on port[0] = 21 [ 60.630416][ T8258] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.644964][ T8258] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.652876][ T8258] device bridge_slave_0 entered promiscuous mode [ 60.687619][ T8258] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.695675][ T8258] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.703536][ T8258] device bridge_slave_1 entered promiscuous mode [ 60.764317][ T8258] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.796092][ T8261] chnl_net:caif_netlink_parms(): no params data found 17:25:17 executing program 3: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) r1 = getpgrp(0xffffffffffffffff) capget(&(0x7f0000000140)={0x20080522, r1}, &(0x7f0000000180)) [ 60.817501][ T8258] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.904501][ T8261] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.913247][ T8261] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.921572][ T8261] device bridge_slave_0 entered promiscuous mode [ 60.932819][ T8258] team0: Port device team_slave_0 added [ 60.975809][ T8261] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.982909][ T8261] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.005369][ T8261] device bridge_slave_1 entered promiscuous mode [ 61.013321][ T8258] team0: Port device team_slave_1 added [ 61.039509][ T8263] chnl_net:caif_netlink_parms(): no params data found 17:25:17 executing program 4: bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x3, &(0x7f0000000040)=@framed={{0x5, 0x0, 0x0, 0x0, 0x0, 0x71, 0x10, 0x36}}, &(0x7f0000000080)='GPL\x04\x9c5\x14\xbfw-\xa0z\xe8.vY\n6\xf6I>\xc1\xab\x91\xb3\x97\xe4*\xbf\x1e\xa6\xcd\x8c\xd7t\'\xfc\x9a\x9e+qe\xf5+A\a\xbf\bP\xd8\x99\xdcR\xd0\x13\x17]\xdb\x1b/F <*\x05\xb7\"\xe3>Uo\xb2\xe3\xf3\x9a<\xde\x1f\xcaSd\x037\xec\x95aF\xbd\xbf\xcb\x11Pp\x19V1\xde]!\xa5\xea\x9ec\x8c+\xdbx\xa5\x01\xcaKn\xa3\x13\xd8%h\xf98,,?o\xab\xa6\xb4\xeeTy;N\xd2m\xae>R\"P)\xbb*\xc0\x00\x7fwuL?#\xce\xda\x98\t\xb9\xa9hJ\x94\n\xbc\xaa\x8c\xfc\xc7\x13>\xc4\"\xe9\xc88\x881\x8dA\xe9\xa4\x93\xf0\x19_\xe2Y\x96Q\xb8\x95\x04\xf5\xdb\xa1F%\xce#f\xf3=\x95\xdb\xa9/\x86ry\xca\xbfJ\xce\xdd\xc8Z\x8a\xf7\xa0\xfah\xd7g\xceQ6\xb9\xd0\xd1\x96lI\x9c\xb6\xbf4\xc2\x98\x86f\x97\x00'/248, 0x0, 0x0, 0x0, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x8, 0x10, &(0x7f0000000000), 0x10}, 0x14) [ 61.081099][ T8261] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.137303][ T8258] device hsr_slave_0 entered promiscuous mode [ 61.155117][ T8258] device hsr_slave_1 entered promiscuous mode [ 61.258776][ T8261] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.282586][ T8269] IPVS: ftp: loaded support on port[0] = 21 [ 61.293658][ T8263] bridge0: port 1(bridge_slave_0) entered blocking state 17:25:18 executing program 5: socket$kcm(0xa, 0x3, 0x11) socket$kcm(0xa, 0x3, 0x11) r0 = socket$kcm(0x10, 0x2, 0x4) sendmsg$kcm(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000080)=[{&(0x7f0000000000)="48000000140081fb7059ae08060c04000aff0f03000004000002020000006fabca1b4e7d06a6bd7c493872f750375ed08a562ad6e74703c48f93b82a02000000461eb886a5e54e8f", 0x48}], 0x1}, 0x0) [ 61.303991][ T8268] IPVS: ftp: loaded support on port[0] = 21 [ 61.317165][ T8263] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.335064][ T8263] device bridge_slave_0 entered promiscuous mode [ 61.382299][ T8263] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.391585][ T8263] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.400259][ T8263] device bridge_slave_1 entered promiscuous mode [ 61.443654][ T8261] team0: Port device team_slave_0 added [ 61.482180][ T8261] team0: Port device team_slave_1 added [ 61.536305][ T8261] device hsr_slave_0 entered promiscuous mode [ 61.584861][ T8261] device hsr_slave_1 entered promiscuous mode [ 61.614557][ T8261] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.630380][ T8263] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.640100][ T8258] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.701624][ T8258] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.754211][ T8263] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.773382][ T8271] IPVS: ftp: loaded support on port[0] = 21 [ 61.786937][ T8258] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.828154][ T8258] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.905273][ T8263] team0: Port device team_slave_0 added [ 61.913601][ T8263] team0: Port device team_slave_1 added [ 61.980969][ T8261] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 62.066637][ T8261] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 62.137705][ T8263] device hsr_slave_0 entered promiscuous mode [ 62.175668][ T8263] device hsr_slave_1 entered promiscuous mode [ 62.234782][ T8263] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.245204][ T8268] chnl_net:caif_netlink_parms(): no params data found [ 62.256359][ T8261] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 62.289209][ T8261] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 62.393727][ T8269] chnl_net:caif_netlink_parms(): no params data found [ 62.431466][ T8268] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.439491][ T8268] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.447600][ T8268] device bridge_slave_0 entered promiscuous mode [ 62.460973][ T8263] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 62.506676][ T8263] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 62.560050][ T8263] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 62.606541][ T8268] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.613755][ T8268] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.623081][ T8268] device bridge_slave_1 entered promiscuous mode [ 62.642022][ T8268] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.653833][ T8268] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.668806][ T8263] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 62.744093][ T8269] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.751839][ T8269] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.759745][ T8269] device bridge_slave_0 entered promiscuous mode [ 62.790744][ T8268] team0: Port device team_slave_0 added [ 62.805333][ T8269] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.812474][ T8269] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.820865][ T8269] device bridge_slave_1 entered promiscuous mode [ 62.851304][ T8268] team0: Port device team_slave_1 added [ 62.870323][ T8269] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.884061][ T8271] chnl_net:caif_netlink_parms(): no params data found [ 62.908774][ T8258] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.920221][ T8269] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.984175][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.992781][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.026234][ T8268] device hsr_slave_0 entered promiscuous mode [ 63.074925][ T8268] device hsr_slave_1 entered promiscuous mode [ 63.124580][ T8268] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.139838][ T8258] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.148389][ T8269] team0: Port device team_slave_0 added [ 63.161120][ T8269] team0: Port device team_slave_1 added [ 63.167164][ T8271] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.174210][ T8271] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.182045][ T8271] device bridge_slave_0 entered promiscuous mode [ 63.190505][ T8271] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.197693][ T8271] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.205951][ T8271] device bridge_slave_1 entered promiscuous mode [ 63.236455][ T8263] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.287484][ T8269] device hsr_slave_0 entered promiscuous mode [ 63.364895][ T8269] device hsr_slave_1 entered promiscuous mode [ 63.404592][ T8269] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.413536][ T8271] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.424748][ T8271] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.437684][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.447137][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.455651][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.462937][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.470990][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.480332][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.488734][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.495814][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.503847][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.523700][ T8261] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.551704][ T8263] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.563051][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.573812][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.583549][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.592345][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.601193][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.609916][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.618539][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.626453][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.638440][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.663484][ T8258] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.676542][ T8258] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.692171][ T8271] team0: Port device team_slave_0 added [ 63.699278][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.708126][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.715794][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.723944][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.733468][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.742201][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.750842][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.757964][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.765729][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.773928][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.782176][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.790685][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.799219][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.806312][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.816680][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.824246][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.835848][ T8268] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 63.869219][ T8261] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.877943][ T8271] team0: Port device team_slave_1 added [ 63.894793][ T8268] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 63.957375][ T8268] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 63.997010][ T8268] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 64.052355][ T8269] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 64.098562][ T8269] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 64.156909][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.168459][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.178314][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.187171][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.194210][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.202042][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.210982][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.219367][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.226437][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.236999][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.257190][ T8269] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 64.297080][ T8269] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 64.338375][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.347957][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.356618][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.368134][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.378752][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.387704][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.396536][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.413473][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.477939][ T8271] device hsr_slave_0 entered promiscuous mode [ 64.514903][ T8271] device hsr_slave_1 entered promiscuous mode [ 64.555154][ T8271] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.572316][ T8261] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 64.583257][ T8261] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.612974][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.621293][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.630520][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.639166][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.647740][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.656520][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.664913][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.673387][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.682015][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.690344][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.701102][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.709485][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.717895][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.726232][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.733651][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.741503][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.772341][ T8258] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.793422][ T8261] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.826894][ T8263] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.842339][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.850074][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.869051][ T8271] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 64.920486][ T8271] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 64.968916][ T8271] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 65.009003][ T8271] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 65.084198][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.097480][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.169184][ T8268] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.211340][ T8263] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 170.134377][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 170.141253][ C1] rcu: 1-...!: (10499 ticks this GP) idle=556/1/0x4000000000000002 softirq=11850/11850 fqs=4 [ 170.151824][ C1] (t=10501 jiffies g=6545 q=229) [ 170.156850][ C1] rcu: rcu_preempt kthread starved for 10494 jiffies! g6545 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 170.167931][ C1] rcu: RCU grace-period kthread stack dump: [ 170.173809][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 170.181695][ C1] Call Trace: [ 170.184980][ C1] __schedule+0x9a0/0xcc0 [ 170.189309][ C1] schedule+0x181/0x210 [ 170.193452][ C1] schedule_timeout+0x14f/0x240 [ 170.198552][ C1] ? run_local_timers+0x120/0x120 [ 170.203566][ C1] rcu_gp_kthread+0xed8/0x1770 [ 170.208341][ C1] kthread+0x332/0x350 [ 170.212393][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 170.217490][ C1] ? kthread_blkcg+0xe0/0xe0 [ 170.222064][ C1] ret_from_fork+0x24/0x30 [ 170.226481][ C1] NMI backtrace for cpu 1 [ 170.230796][ C1] CPU: 1 PID: 8279 Comm: blkid Not tainted 5.4.0-syzkaller #0 [ 170.238231][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 170.248268][ C1] Call Trace: [ 170.251537][ C1] [ 170.254378][ C1] dump_stack+0x1fb/0x318 [ 170.258697][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 170.263681][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 170.269849][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 170.275934][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 170.281910][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 170.287790][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 170.292894][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 170.298090][ C1] ? trace_hardirqs_off+0x74/0x80 [ 170.303107][ C1] update_process_times+0x12d/0x180 [ 170.308326][ C1] tick_sched_timer+0x263/0x420 [ 170.313178][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 170.318834][ C1] __hrtimer_run_queues+0x403/0x840 [ 170.324046][ C1] hrtimer_interrupt+0x38c/0xda0 [ 170.328992][ C1] ? debug_smp_processor_id+0x9/0x20 [ 170.334269][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 170.339801][ C1] apic_timer_interrupt+0xf/0x20 [ 170.344724][ C1] [ 170.347649][ C1] RIP: 0010:free_thread_stack+0x12e/0x590 [ 170.353357][ C1] Code: 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 a4 69 00 49 8b 1c 24 48 83 c3 [ 170.372949][ C1] RSP: 0018:ffffc900026979d0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 170.381346][ C1] RAX: 0000000000000001 RBX: ffffea0002555fc0 RCX: 0000000000000000 [ 170.389322][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002555fc0 [ 170.397278][ C1] RBP: ffffc90002697a08 R08: 000000000003a768 R09: ffffed1014eb4b17 [ 170.405250][ C1] R10: ffffed1014eb4b17 R11: 0000000000000000 R12: ffff8880a0819920 [ 170.413209][ C1] R13: dffffc0000000000 R14: 1ffff11014103324 R15: ffff8880a75a58a8 [ 170.421198][ C1] put_task_stack+0xa3/0x130 [ 170.425791][ C1] finish_task_switch+0x3f1/0x550 [ 170.430807][ C1] __schedule+0x9a8/0xcc0 [ 170.435133][ C1] ? ___preempt_schedule+0x16/0x18 [ 170.440229][ C1] preempt_schedule+0xdb/0x120 [ 170.444986][ C1] ___preempt_schedule+0x16/0x18 [ 170.449919][ C1] ? lru_add_drain+0x46/0x60 [ 170.454491][ C1] ? lru_add_drain+0x57/0x60 [ 170.459072][ C1] lru_add_drain+0x5c/0x60 [ 170.463473][ C1] exit_mmap+0x249/0x530 [ 170.467697][ C1] ? exit_aio+0x25e/0x370 [ 170.472019][ C1] ? mutex_unlock+0x1b/0x30 [ 170.476508][ C1] ? uprobe_clear_state+0x296/0x450 [ 170.481694][ C1] __mmput+0x120/0x3a0 [ 170.485747][ C1] mmput+0x5d/0x70 [ 170.489466][ C1] exit_mm+0x50a/0x590 [ 170.493530][ C1] do_exit+0x544/0x2020 [ 170.497673][ C1] ? check_preemption_disabled+0xb4/0x260 [ 170.503384][ C1] do_group_exit+0x15c/0x2b0 [ 170.507965][ C1] __do_sys_exit_group+0x17/0x20 [ 170.512889][ C1] __se_sys_exit_group+0x14/0x20 [ 170.517812][ C1] __x64_sys_exit_group+0x3b/0x40 [ 170.522824][ C1] do_syscall_64+0xf7/0x1c0 [ 170.527314][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 170.533191][ C1] RIP: 0033:0x7f6db5d7a1e8 [ 170.537616][ C1] Code: Bad RIP value. [ 170.541665][ C1] RSP: 002b:00007ffd82719958 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 170.550064][ C1] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f6db5d7a1e8 [ 170.558022][ C1] RDX: 0000000000000002 RSI: 000000000000003c RDI: 0000000000000002 [ 170.565978][ C1] RBP: 00007f6db604f840 R08: 00000000000000e7 R09: ffffffffffffffa8 [ 170.573936][ C1] R10: 00007f6db6055740 R11: 0000000000000246 R12: 00007f6db604f840 [ 170.581893][ C1] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000