[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 50.950972][ T26] audit: type=1800 audit(1578458079.423:25): pid=8377 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 50.970556][ T26] audit: type=1800 audit(1578458079.423:26): pid=8377 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 50.992126][ T26] audit: type=1800 audit(1578458079.423:27): pid=8377 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 '10.128.1.45' (ECDSA) to the list of known hosts. 2020/01/08 04:34:49 fuzzer started 2020/01/08 04:34:51 dialing manager at 10.128.0.26:35703 2020/01/08 04:34:51 syscalls: 2824 2020/01/08 04:34:51 code coverage: enabled 2020/01/08 04:34:51 comparison tracing: enabled 2020/01/08 04:34:51 extra coverage: enabled 2020/01/08 04:34:51 setuid sandbox: enabled 2020/01/08 04:34:51 namespace sandbox: enabled 2020/01/08 04:34:51 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 04:34:51 fault injection: enabled 2020/01/08 04:34:51 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 04:34:51 net packet injection: enabled 2020/01/08 04:34:51 net device setup: enabled 2020/01/08 04:34:51 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 04:34:51 devlink PCI setup: PCI device 0000:00:10.0 is not available 04:34:52 executing program 0: mkdir(&(0x7f0000000240)='./file1\x00', 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) mkdir(&(0x7f0000000180)='./bus\x00', 0x0) mkdir(&(0x7f0000000280)='./file0\x00', 0x0) mount$overlay(0x400000, &(0x7f0000000000)='./bus\x00', &(0x7f0000000080)='overlay\x00', 0x0, &(0x7f0000000100)=ANY=[@ANYBLOB='lowerdir=./bus,workdir=./file1,upperdir=./file0']) chdir(&(0x7f00000001c0)='./bus\x00') r2 = open(&(0x7f0000000000)='./bus\x00', 0x141042, 0x0) lsetxattr$security_capability(&(0x7f0000000140)='./bus\x00', &(0x7f0000000200)='security.capability\x00', &(0x7f00000002c0)=@v2, 0x14, 0x0) write$P9_RWALK(r2, &(0x7f00000003c0)=ANY=[@ANYRES64], 0x8) 04:34:52 executing program 1: r0 = syz_open_dev$vivid(&(0x7f0000000000)='/dev/video#\x00', 0x2, 0x2) ioctl$VIDIOC_ENUM_FRAMEINTERVALS(r0, 0xc034564b, &(0x7f0000000040)={0x800, 0x56595559}) syzkaller login: [ 64.118517][ T8544] IPVS: ftp: loaded support on port[0] = 21 [ 64.280455][ T8544] chnl_net:caif_netlink_parms(): no params data found [ 64.322285][ T8547] IPVS: ftp: loaded support on port[0] = 21 [ 64.337872][ T8544] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.351995][ T8544] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.360330][ T8544] device bridge_slave_0 entered promiscuous mode 04:34:52 executing program 2: r0 = socket$vsock_stream(0x28, 0x1, 0x0) getsockname(r0, 0x0, &(0x7f0000000080)) [ 64.373105][ T8544] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.390751][ T8544] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.398318][ T8544] device bridge_slave_1 entered promiscuous mode [ 64.462641][ T8544] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.487904][ T8544] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.554381][ T8544] team0: Port device team_slave_0 added [ 64.572090][ T8544] team0: Port device team_slave_1 added 04:34:53 executing program 3: r0 = socket$inet_udplite(0x2, 0x2, 0x88) r1 = syz_open_dev$mice(&(0x7f0000000100)='/dev/input/mice\x00', 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 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_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER(r1, 0x40605346, 0x0) mkdir(&(0x7f0000001240)='./file0\x00', 0x0) r2 = getpid() sched_setscheduler(r2, 0x5, &(0x7f00000001c0)) perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0x1f, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) bpf$BPF_GET_PROG_INFO(0xf, &(0x7f00000002c0)={0xffffffffffffffff, 0xc0, &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ""/16, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000200), 0x0, 0x0, 0x0, 0x0, 0x0}}, 0x10) ioctl$BLKTRACESETUP(r1, 0xc0481273, 0x0) r3 = syz_open_dev$swradio(&(0x7f0000000000)='/dev/swradio#\x00', 0x1, 0x2) ioctl$sock_inet6_tcp_SIOCATMARK(r3, 0x8905, &(0x7f0000000280)) kcmp(r2, 0x0, 0x5, 0xffffffffffffffff, 0xffffffffffffffff) mount(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f00000001c0)='sysfs\x00', 0x0, 0x0) umount2(&(0x7f0000000240)='./file0\x00', 0x0) r4 = socket$inet_udp(0x2, 0x2, 0x0) close(0xffffffffffffffff) r5 = memfd_create(&(0x7f0000000380)='\x00', 0x1) splice(r5, 0x0, r4, 0x0, 0x80000004, 0x8) setsockopt$inet6_tcp_int(0xffffffffffffffff, 0x6, 0x13, &(0x7f0000000180)=0x100000001, 0x87) ioctl(r0, 0x1000008912, &(0x7f00000000c0)="0800a1695e1dcfe87b1071") r6 = socket(0x200040000000015, 0x805, 0x0) getsockopt(r6, 0x114, 0x2710, &(0x7f0000000040)=""/13, &(0x7f00000000c0)=0x100ea) [ 64.623746][ T8547] chnl_net:caif_netlink_parms(): no params data found [ 64.683455][ T8544] device hsr_slave_0 entered promiscuous mode 04:34:53 executing program 4: perf_event_open(&(0x7f0000000100)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3c43, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$kcm(0x10, 0x2, 0x10) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000040)=[{&(0x7f00000000c0)="2e00000026000500d25a80648c63940d1100fc001000024002000000053582c137153e370900018000f01700d1bd", 0x2e}], 0x1}, 0x0) [ 64.820186][ T8544] device hsr_slave_1 entered promiscuous mode [ 64.946117][ T8550] IPVS: ftp: loaded support on port[0] = 21 [ 64.971849][ T8552] IPVS: ftp: loaded support on port[0] = 21 04:34:53 executing program 5: r0 = inotify_init() inotify_add_watch(r0, &(0x7f0000000240)='.\x00', 0xc0000080) inotify_rm_watch(r0, 0x0) [ 65.095017][ T8554] IPVS: ftp: loaded support on port[0] = 21 [ 65.109897][ T8547] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.116993][ T8547] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.135580][ T8547] device bridge_slave_0 entered promiscuous mode [ 65.171645][ T8547] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.178741][ T8547] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.187827][ T8547] device bridge_slave_1 entered promiscuous mode [ 65.241332][ T8547] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.272133][ T8544] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.333699][ T8547] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.365077][ T8556] IPVS: ftp: loaded support on port[0] = 21 [ 65.382462][ T8544] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.436305][ T8544] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.493718][ T8544] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.558515][ T8550] chnl_net:caif_netlink_parms(): no params data found [ 65.568602][ T8547] team0: Port device team_slave_0 added [ 65.578240][ T8547] team0: Port device team_slave_1 added [ 65.661449][ T8547] device hsr_slave_0 entered promiscuous mode [ 65.710227][ T8547] device hsr_slave_1 entered promiscuous mode [ 65.779914][ T8547] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.787726][ T8547] Cannot create hsr debugfs directory [ 65.866110][ T8552] chnl_net:caif_netlink_parms(): no params data found [ 65.906360][ T8550] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.914526][ T8550] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.922300][ T8550] device bridge_slave_0 entered promiscuous mode [ 65.946768][ T8550] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.955430][ T8550] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.963722][ T8550] device bridge_slave_1 entered promiscuous mode [ 66.005221][ T8554] chnl_net:caif_netlink_parms(): no params data found [ 66.034381][ T8550] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.064342][ T8552] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.071584][ T8552] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.079137][ T8552] device bridge_slave_0 entered promiscuous mode [ 66.090691][ T8550] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.115924][ T8552] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.123550][ T8552] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.131887][ T8552] device bridge_slave_1 entered promiscuous mode [ 66.150636][ T8550] team0: Port device team_slave_0 added [ 66.198871][ T8550] team0: Port device team_slave_1 added [ 66.222025][ T8552] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.241690][ T8554] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.248802][ T8554] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.256676][ T8554] device bridge_slave_0 entered promiscuous mode [ 66.265134][ T8552] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.287421][ T8554] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.300113][ T8554] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.307717][ T8554] device bridge_slave_1 entered promiscuous mode [ 66.318537][ T8556] chnl_net:caif_netlink_parms(): no params data found [ 66.343689][ T8547] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 66.393405][ T8547] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 66.457512][ T8552] team0: Port device team_slave_0 added [ 66.511895][ T8550] device hsr_slave_0 entered promiscuous mode [ 66.550225][ T8550] device hsr_slave_1 entered promiscuous mode [ 66.589948][ T8550] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.597670][ T8550] Cannot create hsr debugfs directory [ 66.604827][ T8554] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.614540][ T8547] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 66.673365][ T8552] team0: Port device team_slave_1 added [ 66.679100][ T8547] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 66.729214][ T8544] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.738265][ T8554] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.788222][ T8554] team0: Port device team_slave_0 added [ 66.831501][ T8552] device hsr_slave_0 entered promiscuous mode [ 66.890580][ T8552] device hsr_slave_1 entered promiscuous mode [ 66.969987][ T8552] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.977618][ T8552] Cannot create hsr debugfs directory [ 66.990290][ T8556] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.997363][ T8556] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.005606][ T8556] device bridge_slave_0 entered promiscuous mode [ 67.018302][ T8554] team0: Port device team_slave_1 added [ 67.034818][ T8556] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.042130][ T8556] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.049700][ T8556] device bridge_slave_1 entered promiscuous mode [ 67.071291][ T8556] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.083519][ T8556] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.138659][ T8544] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.221563][ T8554] device hsr_slave_0 entered promiscuous mode [ 67.260105][ T8554] device hsr_slave_1 entered promiscuous mode [ 67.329937][ T8554] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.337513][ T8554] Cannot create hsr debugfs directory [ 67.345926][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.356773][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.366708][ T8556] team0: Port device team_slave_0 added [ 67.397657][ T8556] team0: Port device team_slave_1 added [ 67.406366][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.415602][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.424688][ T2752] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.431903][ T2752] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.442090][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.450054][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.459053][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.467404][ T2752] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.474499][ T2752] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.562548][ T8556] device hsr_slave_0 entered promiscuous mode [ 67.610179][ T8556] device hsr_slave_1 entered promiscuous mode [ 67.649919][ T8556] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.657507][ T8556] Cannot create hsr debugfs directory [ 67.672458][ T3011] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.721921][ T8552] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 67.752188][ T3006] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.761380][ T3006] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.769906][ T3006] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.778230][ T3006] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.786744][ T3006] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.797916][ T3006] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.808583][ T8550] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 67.883970][ T8550] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 67.933540][ T8552] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 67.990025][ T3011] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.998455][ T3011] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.013557][ T8550] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 68.095944][ T8550] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 68.141233][ T8552] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 68.181818][ T8552] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 68.237623][ T8547] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.270255][ T2756] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.278942][ T2756] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.290484][ T8544] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.337209][ T8554] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 68.392339][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.401076][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.424215][ T8547] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.438460][ T8554] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 68.496485][ T8554] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 68.534174][ T3006] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.542140][ T3006] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.558504][ T8552] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.580890][ T8554] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 68.624986][ T8544] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.632652][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.645771][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.654237][ T44] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.661854][ T44] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.670233][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.679191][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.687666][ T44] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.694954][ T44] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.703356][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.727724][ T8552] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.757216][ T2756] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.765185][ T2756] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.773596][ T2756] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.781407][ T2756] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.790911][ T2756] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.799246][ T2756] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.806458][ T2756] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.814527][ T2756] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.823286][ T8556] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 68.862462][ T8556] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 68.932235][ T8556] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 68.984182][ T8556] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 69.070338][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.078442][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.087254][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.095591][ T2752] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.102696][ T2752] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.110518][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.119672][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.128640][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.137579][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.145974][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.154613][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.163727][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.177087][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.196667][ T8547] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 69.208242][ T8547] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 69.242131][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.251361][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.259649][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.269456][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.278312][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.286664][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.295360][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.302950][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.311523][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.330416][ T8544] device veth0_vlan entered promiscuous mode [ 69.347096][ T8550] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.356130][ T3006] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.368754][ T8544] device veth1_vlan entered promiscuous mode [ 69.389518][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.401962][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.410384][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.419016][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.436025][ T8547] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.461734][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.469562][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.478362][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.489205][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.501814][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.510918][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.520676][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.540951][ T8554] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.551004][ T8550] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.567970][ T8552] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 69.579386][ T8552] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.597836][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.614560][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.627742][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.637261][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.647395][ T2752] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.654545][ T2752] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.663833][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.672323][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.698434][ T8554] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.781864][ T8550] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 69.798542][ T8550] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 69.838149][ T8550] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.894363][ T8550] device veth0_vlan entered promiscuous mode [ 69.914222][ T8550] device veth1_vlan entered promiscuous mode [ 70.426108][ T8565] overlayfs: filesystem on './file0' not supported as upperdir [ 174.699742][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 174.706622][ C0] rcu: 0-...!: (10499 ticks this GP) idle=976/1/0x4000000000000002 softirq=14669/14669 fqs=36 [ 174.717383][ C0] (t=10500 jiffies g=6701 q=578) [ 174.722493][ C0] rcu: rcu_preempt kthread starved for 10426 jiffies! g6701 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 174.733844][ C0] rcu: RCU grace-period kthread stack dump: [ 174.739723][ C0] rcu_preempt R running task 29104 10 2 0x80004000 [ 174.747624][ C0] Call Trace: [ 174.750919][ C0] __schedule+0x9a0/0xcc0 [ 174.755246][ C0] schedule+0x181/0x210 [ 174.759402][ C0] schedule_timeout+0x14f/0x240 [ 174.764251][ C0] ? run_local_timers+0x120/0x120 [ 174.769299][ C0] rcu_gp_kthread+0xed8/0x1770 [ 174.774099][ C0] kthread+0x332/0x350 [ 174.778167][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 174.783272][ C0] ? kthread_blkcg+0xe0/0xe0 [ 174.787887][ C0] ret_from_fork+0x24/0x30 [ 174.792326][ C0] NMI backtrace for cpu 0 [ 174.796676][ C0] CPU: 0 PID: 89 Comm: kworker/u4:2 Not tainted 5.5.0-rc5-syzkaller #0 [ 174.805339][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 174.815489][ C0] Workqueue: 0x0 (gid-cache-wq) [ 174.820437][ C0] Call Trace: [ 174.823717][ C0] [ 174.826582][ C0] dump_stack+0x1fb/0x318 [ 174.831054][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 174.836873][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 174.843048][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 174.849129][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 174.856069][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 174.861974][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 174.867171][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 174.872365][ C0] ? trace_hardirqs_off+0x74/0x80 [ 174.877383][ C0] update_process_times+0x12d/0x180 [ 174.883010][ C0] tick_sched_timer+0x263/0x420 [ 174.887866][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 174.893426][ C0] __hrtimer_run_queues+0x403/0x840 [ 174.898629][ C0] hrtimer_interrupt+0x38c/0xda0 [ 174.903641][ C0] ? debug_smp_processor_id+0x9/0x20 [ 174.908951][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 174.914497][ C0] apic_timer_interrupt+0xf/0x20 [ 174.919582][ C0] [ 174.923487][ C0] RIP: 0010:__memcg_kmem_uncharge+0x8/0x1a0 [ 174.929372][ C0] Code: 07 00 74 12 48 81 c3 08 02 00 00 48 89 df 4c 89 f6 e8 8c 85 ff ff 5b 41 5e 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 <41> 55 41 54 53 50 89 f3 49 89 fc 48 b8 00 00 00 00 00 fc ff df 4c [ 174.949064][ C0] RSP: 0018:ffffc90001147c10 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 174.957463][ C0] RAX: ffffffff81489244 RBX: ffffea00025cf4c0 RCX: ffff8880a97ba340 [ 174.965441][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00025cf4c0 [ 174.973433][ C0] RBP: ffffc90001147c20 R08: 000000000003a728 R09: ffffed1012596ed9 [ 174.981410][ C0] R10: ffffed1012596ed9 R11: 0000000000000000 R12: ffff8880a8ede820 [ 174.989463][ C0] R13: dffffc0000000000 R14: 1ffff110151dbd04 R15: ffff888092cb76b8 [ 174.997591][ C0] ? free_thread_stack+0x124/0x590 [ 175.002754][ C0] free_thread_stack+0x12e/0x590 [ 175.007824][ C0] put_task_stack+0xa3/0x130 [ 175.012599][ C0] finish_task_switch+0x3f1/0x550 [ 175.017627][ C0] __schedule+0x9a8/0xcc0 [ 175.021987][ C0] schedule+0x181/0x210 [ 175.026153][ C0] worker_thread+0x10d6/0x1630 [ 175.030933][ C0] kthread+0x332/0x350 [ 175.035001][ C0] ? rcu_lock_release+0x30/0x30 [ 175.039851][ C0] ? kthread_blkcg+0xe0/0xe0 [ 175.044430][ C0] ret_from_fork+0x24/0x30