[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 52.517364][ T23] audit: type=1800 audit(1578451746.981:25): pid=8318 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 52.536635][ T23] audit: type=1800 audit(1578451746.981:26): pid=8318 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 52.571494][ T23] audit: type=1800 audit(1578451746.981:27): pid=8318 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 '10.128.0.210' (ECDSA) to the list of known hosts. 2020/01/08 02:49:16 fuzzer started 2020/01/08 02:49:17 dialing manager at 10.128.0.26:35703 2020/01/08 02:49:18 syscalls: 2824 2020/01/08 02:49:18 code coverage: enabled 2020/01/08 02:49:18 comparison tracing: enabled 2020/01/08 02:49:18 extra coverage: enabled 2020/01/08 02:49:18 setuid sandbox: enabled 2020/01/08 02:49:18 namespace sandbox: enabled 2020/01/08 02:49:18 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 02:49:18 fault injection: enabled 2020/01/08 02:49:18 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 02:49:18 net packet injection: enabled 2020/01/08 02:49:18 net device setup: enabled 2020/01/08 02:49:18 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 02:49:18 devlink PCI setup: PCI device 0000:00:10.0 is not available 02:49:19 executing program 0: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r1 = eventfd(0x0) r2 = socket$inet_udp(0x2, 0x2, 0x0) sendmmsg$unix(0xffffffffffffffff, &(0x7f0000003f40)=[{0x0, 0x0, 0x0, 0x0, &(0x7f0000000440)=[@rights={{0x1c, 0x1, 0x1, [r1, r2, 0xffffffffffffffff]}}], 0x20}], 0x1, 0x0) sendmmsg(r0, &(0x7f0000003040), 0x3fffffffffffff1, 0x0) 02:49:19 executing program 1: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) unshare(0x600) pipe(&(0x7f00000000c0)={0xffffffffffffffff}) getpeername$packet(r2, 0x0, 0x0) syzkaller login: [ 64.730577][ T8486] IPVS: ftp: loaded support on port[0] = 21 [ 64.846834][ T8486] chnl_net:caif_netlink_parms(): no params data found 02:49:19 executing program 2: syz_open_dev$sndtimer(&(0x7f0000026000)='/dev/snd/timer\x00', 0x0, 0x0) syz_open_dev$sndtimer(0x0, 0x0, 0x0) r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000140)='fd/4\x00') ioctl$SNDRV_TIMER_IOCTL_NEXT_DEVICE(r0, 0xc0145401, &(0x7f0000001280)={0xffffffffffffffff}) [ 64.927650][ T8486] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.945990][ T8486] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.955778][ T8486] device bridge_slave_0 entered promiscuous mode [ 64.971637][ T8486] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.974306][ T8489] IPVS: ftp: loaded support on port[0] = 21 [ 64.978775][ T8486] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.993289][ T8486] device bridge_slave_1 entered promiscuous mode [ 65.022113][ T8486] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.035945][ T8486] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.077160][ T8486] team0: Port device team_slave_0 added [ 65.087318][ T8486] team0: Port device team_slave_1 added [ 65.173341][ T8486] device hsr_slave_0 entered promiscuous mode 02:49:19 executing program 3: socketpair(0x1e, 0x1, 0x0, &(0x7f0000000140)={0x0, 0x0}) close(r0) socket$inet_sctp(0x2, 0x1, 0x84) getsockopt$inet_sctp_SCTP_AUTH_ACTIVE_KEY(r0, 0x84, 0x7d, 0x0, &(0x7f0000000000)=0x3ca) [ 65.222622][ T8486] device hsr_slave_1 entered promiscuous mode [ 65.289127][ T8491] IPVS: ftp: loaded support on port[0] = 21 02:49:19 executing program 4: mkdir(&(0x7f0000000340)='./file0\x00', 0x0) r0 = openat$fuse(0xffffffffffffff9c, &(0x7f0000000080)='/dev/fuse\x00', 0x2, 0x0) mount$fuse(0x0, &(0x7f0000000200)='./file0\x00', &(0x7f0000000240)='fuse\x00', 0x0, &(0x7f0000000400)={{'fd', 0x3d, r0}, 0x2c, {'rootmode', 0x3d, 0x4000}, 0x2c, {'user_id'}, 0x2c, {'group_id'}}) getxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000180)=@known='system.posix_acl_access\x00', 0x0, 0x0) [ 65.444840][ T8493] IPVS: ftp: loaded support on port[0] = 21 [ 65.454031][ T8486] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.548333][ T8486] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.624037][ T8486] netdevsim netdevsim0 netdevsim2: renamed from eth2 02:49:20 executing program 5: r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) process_vm_readv(0x0, 0x0, 0x0, 0x0, 0x0, 0x2) [ 65.702863][ T8486] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.765396][ T8489] chnl_net:caif_netlink_parms(): no params data found [ 65.791572][ T8496] IPVS: ftp: loaded support on port[0] = 21 [ 65.823762][ T8486] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.831115][ T8486] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.831640][ T8486] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.845494][ T8486] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.855002][ T8498] IPVS: ftp: loaded support on port[0] = 21 [ 65.878248][ T2958] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.887071][ T2958] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.935889][ T8489] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.944315][ T8489] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.952415][ T8489] device bridge_slave_0 entered promiscuous mode [ 65.993915][ T8489] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.001959][ T8489] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.009469][ T8489] device bridge_slave_1 entered promiscuous mode [ 66.028992][ T8489] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.058551][ T8491] chnl_net:caif_netlink_parms(): no params data found [ 66.075132][ T8489] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.148053][ T8489] team0: Port device team_slave_0 added [ 66.168391][ T8491] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.177332][ T8491] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.185045][ T8491] device bridge_slave_0 entered promiscuous mode [ 66.194096][ T8491] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.201924][ T8491] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.209445][ T8491] device bridge_slave_1 entered promiscuous mode [ 66.228427][ T8491] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.249746][ T8489] team0: Port device team_slave_1 added [ 66.257068][ T8493] chnl_net:caif_netlink_parms(): no params data found [ 66.272387][ T8491] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.372112][ T8489] device hsr_slave_0 entered promiscuous mode [ 66.420864][ T8489] device hsr_slave_1 entered promiscuous mode [ 66.480586][ T8489] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.488374][ T8489] Cannot create hsr debugfs directory [ 66.496644][ T8496] chnl_net:caif_netlink_parms(): no params data found [ 66.507722][ T8491] team0: Port device team_slave_0 added [ 66.545647][ T8491] team0: Port device team_slave_1 added [ 66.564467][ T8498] chnl_net:caif_netlink_parms(): no params data found [ 66.577352][ T8486] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.644637][ T8493] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.652616][ T8493] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.660125][ T8493] device bridge_slave_0 entered promiscuous mode [ 66.723042][ T8491] device hsr_slave_0 entered promiscuous mode [ 66.760824][ T8491] device hsr_slave_1 entered promiscuous mode [ 66.800599][ T8491] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.808196][ T8491] Cannot create hsr debugfs directory [ 66.829544][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.838152][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.846529][ T8496] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.853793][ T8496] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.861940][ T8496] device bridge_slave_0 entered promiscuous mode [ 66.869176][ T8493] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.876926][ T8493] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.885430][ T8493] device bridge_slave_1 entered promiscuous mode [ 66.913699][ T8496] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.922362][ T8496] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.929928][ T8496] device bridge_slave_1 entered promiscuous mode [ 66.948889][ T8498] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.956435][ T8498] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.964426][ T8498] device bridge_slave_0 entered promiscuous mode [ 66.973476][ T8486] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.980258][ T8498] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.987415][ T8498] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.995333][ T8498] device bridge_slave_1 entered promiscuous mode [ 67.036939][ T8496] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.056452][ T8493] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.068029][ T8493] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.081296][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.089878][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.098334][ T2743] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.105421][ T2743] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.112974][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.121603][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.129882][ T2743] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.137000][ T2743] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.148424][ T8496] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.173228][ T8498] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.187535][ T8498] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.197295][ T8489] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 67.242782][ T8489] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 67.312714][ T8489] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 67.352468][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.368501][ T8496] team0: Port device team_slave_0 added [ 67.376403][ T8493] team0: Port device team_slave_0 added [ 67.387472][ T8498] team0: Port device team_slave_0 added [ 67.393554][ T8489] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 67.434139][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.452639][ T8496] team0: Port device team_slave_1 added [ 67.459940][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.468599][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.478197][ T8493] team0: Port device team_slave_1 added [ 67.485765][ T8498] team0: Port device team_slave_1 added [ 67.553030][ T8496] device hsr_slave_0 entered promiscuous mode [ 67.600869][ T8496] device hsr_slave_1 entered promiscuous mode [ 67.640636][ T8496] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.648264][ T8496] Cannot create hsr debugfs directory [ 67.655276][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.713493][ T8498] device hsr_slave_0 entered promiscuous mode [ 67.751108][ T8498] device hsr_slave_1 entered promiscuous mode [ 67.791061][ T8498] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.798644][ T8498] Cannot create hsr debugfs directory [ 67.841977][ T2958] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.851189][ T2958] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.879137][ T8491] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 67.936052][ T8491] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 68.014800][ T2763] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.023585][ T2763] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.033891][ T8491] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 68.097335][ T8491] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 68.203406][ T8493] device hsr_slave_0 entered promiscuous mode [ 68.250794][ T8493] device hsr_slave_1 entered promiscuous mode [ 68.290640][ T8493] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.298283][ T8493] Cannot create hsr debugfs directory [ 68.312667][ T8486] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.324395][ T8486] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.332648][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.341990][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.461984][ T2763] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.469636][ T2763] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.487494][ T8489] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.494956][ T8498] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 68.531945][ T8496] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 68.596997][ T8486] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.604335][ T8498] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 68.653216][ T8496] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 68.692948][ T8496] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 68.756682][ T8496] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 68.810014][ T8493] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 68.852396][ T8498] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 68.895952][ T8498] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 68.963095][ T8493] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 69.012869][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.020691][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.030144][ T8489] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.062024][ T8493] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 69.090055][ T8493] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 69.145134][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.154046][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.164073][ T3176] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.171152][ T3176] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.178926][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.188168][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.208730][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.233752][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.245100][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.255308][ T2743] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.262401][ T2743] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.281199][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.290134][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.298674][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.307407][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.316378][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.324983][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.333704][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.342321][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.351636][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.373610][ T8491] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.380877][ T8486] device veth0_vlan entered promiscuous mode [ 69.404273][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.413547][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.422229][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.430351][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.438799][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.446703][ T2743] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.469825][ T8491] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.483168][ T8489] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.497951][ T8486] device veth1_vlan entered promiscuous mode [ 69.506092][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.514312][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.523746][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.531884][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.540289][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.548797][ T3177] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.555857][ T3177] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.581640][ T8496] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.588775][ T2958] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.603405][ T8498] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.633387][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.647569][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.656280][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.665291][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.672381][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.680643][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.688213][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.708430][ T8498] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.727715][ T8496] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.740883][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.748326][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.780758][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.789374][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 174.780383][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 174.787297][ C0] rcu: 0-...!: (10499 ticks this GP) idle=73e/1/0x4000000000000002 softirq=13836/13836 fqs=1 [ 174.797892][ C0] (t=10501 jiffies g=6809 q=59) [ 174.802837][ C0] rcu: rcu_preempt kthread starved for 10500 jiffies! g6809 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 174.814271][ C0] rcu: RCU grace-period kthread stack dump: [ 174.820153][ C0] rcu_preempt I28984 10 2 0x80004000 [ 174.826493][ C0] Call Trace: [ 174.829778][ C0] __schedule+0x9a0/0xcc0 [ 174.834120][ C0] schedule+0x181/0x210 [ 174.838265][ C0] schedule_timeout+0x14f/0x240 [ 174.843107][ C0] ? run_local_timers+0x120/0x120 [ 174.848122][ C0] rcu_gp_kthread+0xed8/0x1770 [ 174.852910][ C0] kthread+0x332/0x350 [ 174.857054][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 174.862156][ C0] ? kthread_blkcg+0xe0/0xe0 [ 174.866736][ C0] ret_from_fork+0x24/0x30 [ 174.871177][ C0] NMI backtrace for cpu 0 [ 174.875498][ C0] CPU: 0 PID: 8486 Comm: syz-executor.0 Not tainted 5.5.0-rc5-syzkaller #0 [ 174.884064][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 174.894212][ C0] Call Trace: [ 174.897501][ C0] [ 174.900354][ C0] dump_stack+0x1fb/0x318 [ 174.904677][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 174.909518][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 174.915665][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 174.921722][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 174.927692][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 174.933573][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 174.938675][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 174.943966][ C0] ? trace_hardirqs_off+0x74/0x80 [ 174.948983][ C0] update_process_times+0x12d/0x180 [ 174.954173][ C0] tick_sched_timer+0x263/0x420 [ 174.959010][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 174.964557][ C0] __hrtimer_run_queues+0x403/0x840 [ 174.969763][ C0] hrtimer_interrupt+0x38c/0xda0 [ 174.974706][ C0] ? debug_smp_processor_id+0x9/0x20 [ 174.979986][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 174.985524][ C0] apic_timer_interrupt+0xf/0x20 [ 174.990446][ C0] [ 174.993373][ C0] RIP: 0010:free_thread_stack+0x151/0x590 [ 174.999082][ C0] Code: 31 f6 e8 02 8d 6f 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 73 94 6a 00 49 8b 1c 24 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 55 94 6a 00 48 8b 3b be fc ff ff ff e8 28 04 00 [ 175.018670][ C0] RSP: 0018:ffffc90001f17bd0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 175.027065][ C0] RAX: 1ffff11011a2a111 RBX: ffff88808d150888 RCX: 0000000000000000 [ 175.035025][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00023eac00 [ 175.042984][ C0] RBP: ffffc90001f17c08 R08: dffffc0000000000 R09: fffffbfff124248a [ 175.051051][ C0] R10: fffffbfff124248a R11: 0000000000000000 R12: ffff88808d150920 [ 175.059008][ C0] R13: dffffc0000000000 R14: 1ffff11011a2a124 R15: ffff888097de9638 [ 175.066988][ C0] put_task_stack+0xa3/0x130 [ 175.071565][ C0] finish_task_switch+0x3f1/0x550 [ 175.076580][ C0] __schedule+0x9a8/0xcc0 [ 175.080906][ C0] schedule+0x181/0x210 [ 175.085050][ C0] do_nanosleep+0x1d0/0x6c0 [ 175.089549][ C0] hrtimer_nanosleep+0x3a6/0x5b0 [ 175.094478][ C0] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 175.100273][ C0] __x64_sys_nanosleep+0x186/0x1d0 [ 175.105405][ C0] do_syscall_64+0xf7/0x1c0 [ 175.109918][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 175.115800][ C0] RIP: 0033:0x4593f0 [ 175.119697][ C0] Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d 41 f5 61 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 d1 fb ff c3 48 83 ec 08 e8 ea 46 00 00 [ 175.139296][ C0] RSP: 002b:00007fff75bae4b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 [ 175.147697][ C0] RAX: ffffffffffffffda RBX: 0000000000011078 RCX: 00000000004593f0 [ 175.155669][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fff75bae4c0 [ 175.163632][ C0] RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000db7940 [ 175.171592][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 175.179639][ C0] R13: 00007fff75bae510 R14: 0000000000011078 R15: 00007fff75bae520