[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 44.588639][ T25] audit: type=1800 audit(1575436261.347:25): pid=8200 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 44.626075][ T25] audit: type=1800 audit(1575436261.347:26): pid=8200 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.666088][ T25] audit: type=1800 audit(1575436261.347:27): pid=8200 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 '10.128.0.93' (ECDSA) to the list of known hosts. 2019/12/04 05:11:11 fuzzer started 2019/12/04 05:11:13 dialing manager at 10.128.0.26:42111 2019/12/04 05:11:13 syscalls: 2689 2019/12/04 05:11:13 code coverage: enabled 2019/12/04 05:11:13 comparison tracing: enabled 2019/12/04 05:11:13 extra coverage: extra coverage is not supported by the kernel 2019/12/04 05:11:13 setuid sandbox: enabled 2019/12/04 05:11:13 namespace sandbox: enabled 2019/12/04 05:11:13 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 05:11:13 fault injection: enabled 2019/12/04 05:11:13 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 05:11:13 net packet injection: enabled 2019/12/04 05:11:13 net device setup: enabled 2019/12/04 05:11:13 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 05:11:13 devlink PCI setup: PCI device 0000:00:10.0 is not available 05:11:14 executing program 0: socket$inet_udplite(0x2, 0x2, 0x88) r0 = openat$uinput(0xffffffffffffff9c, 0x0, 0x0, 0x0) ioctl$UI_SET_EVBIT(0xffffffffffffffff, 0x40045564, 0x0) ioctl$UI_SET_RELBIT(0xffffffffffffffff, 0x40045566, 0x8) ioctl$UI_SET_EVBIT(r0, 0x40045564, 0x0) ioctl$UI_DEV_SETUP(0xffffffffffffffff, 0x5501, 0x0) r1 = syz_open_dev$mice(0x0, 0x0, 0x0) r2 = socket(0xa, 0x2, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_inet6_SIOCDELRT(r2, 0x890c, &(0x7f00000034c0)={@local, @mcast2, @rand_addr="e6f48b4c00e8000000000300", 0x0, 0x40, 0x0, 0x100, 0x0, 0x206}) dup3(r0, 0xffffffffffffffff, 0x0) ioctl$UI_DEV_DESTROY(r1, 0x5502) ioctl$SIOCAX25ADDUID(0xffffffffffffffff, 0x89e1, 0x0) getsockopt$ARPT_SO_GET_REVISION_TARGET(r1, 0x0, 0x63, &(0x7f0000000200)={'HL\x00'}, &(0x7f0000000240)=0x1e) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x2400, 0x2) mremap(&(0x7f00007a1000/0x3000)=nil, 0x3000, 0x4000, 0x0, &(0x7f00004f4000/0x4000)=nil) clone(0x0, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) write$uinput_user_dev(0xffffffffffffffff, &(0x7f0000000400)={'syz1\x00'}, 0x45c) ioctl$UI_SET_EVBIT(0xffffffffffffffff, 0x40045564, 0x0) ioctl$UI_SET_RELBIT(0xffffffffffffffff, 0x40045566, 0x8) r3 = openat$uinput(0xffffffffffffff9c, &(0x7f0000000080)='/dev/uinput\x00', 0x0, 0x0) write$uinput_user_dev(0xffffffffffffffff, 0x0, 0x0) ioctl$UI_SET_EVBIT(r3, 0x40045564, 0x0) 05:11:14 executing program 1: r0 = syz_open_dev$usbfs(&(0x7f0000000040)='/dev/bus/usb/00#/00#\x00', 0x400000000040006f, 0x8041) ioctl$USBDEVFS_CONTROL(r0, 0xc0185500, &(0x7f0000000000)={0x23, 0x3, 0x8, 0x0, 0x0, 0x0, 0x0}) syzkaller login: [ 58.236561][ T8366] IPVS: ftp: loaded support on port[0] = 21 [ 58.312691][ T8368] IPVS: ftp: loaded support on port[0] = 21 05:11:15 executing program 2: r0 = creat(&(0x7f0000000280)='./file0\x00', 0x1) write$binfmt_script(r0, &(0x7f00000005c0)=ANY=[@ANYBLOB='#'], 0x1) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50e, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) close(r0) fcntl$setlease(0xffffffffffffffff, 0x400, 0x0) execve(&(0x7f0000000180)='./file0\x00', 0x0, 0x0) [ 58.454788][ T8368] chnl_net:caif_netlink_parms(): no params data found [ 58.466931][ T8366] chnl_net:caif_netlink_parms(): no params data found [ 58.547640][ T8368] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.556138][ T8368] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.564065][ T8368] device bridge_slave_0 entered promiscuous mode [ 58.595219][ T8366] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.618447][ T8366] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.629021][ T8366] device bridge_slave_0 entered promiscuous mode [ 58.636995][ T8368] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.644055][ T8368] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.652195][ T8368] device bridge_slave_1 entered promiscuous mode [ 58.666218][ T8366] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.673441][ T8366] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.682084][ T8372] IPVS: ftp: loaded support on port[0] = 21 [ 58.692575][ T8366] device bridge_slave_1 entered promiscuous mode [ 58.735432][ T8366] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.746236][ T8368] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.768511][ T8366] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 05:11:15 executing program 3: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = fcntl$dupfd(r1, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = openat$cuse(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/cuse\x00', 0x2, 0x0) read$FUSE(r3, &(0x7f0000000240), 0x2305e2b7) write$FUSE_CREATE_OPEN(r3, &(0x7f0000001340)={0xa0, 0x0, 0x2, {{0x7}}}, 0xa0) [ 58.781267][ T8368] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.830877][ T8366] team0: Port device team_slave_0 added [ 58.848784][ T8368] team0: Port device team_slave_0 added [ 58.868361][ T8368] team0: Port device team_slave_1 added [ 58.876013][ T8366] team0: Port device team_slave_1 added 05:11:15 executing program 4: r0 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r0, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setuid(r1) r2 = inotify_init1(0x0) fcntl$setown(r2, 0x8, 0xffffffffffffffff) fcntl$getownex(r2, 0x10, &(0x7f0000000140)={0x0, 0x0}) get_robust_list(r3, 0x0, 0x0) [ 58.988753][ T8368] device hsr_slave_0 entered promiscuous mode [ 59.026801][ T8368] device hsr_slave_1 entered promiscuous mode [ 59.122841][ T8374] IPVS: ftp: loaded support on port[0] = 21 05:11:16 executing program 5: socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup2(r1, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = memfd_create(&(0x7f00000000c0)='vboxnet0md5sum\x00', 0x0) write(r3, &(0x7f0000000040)="06", 0x1) mmap(&(0x7f0000000000/0x7000)=nil, 0x7000, 0x80000000004, 0x11, r3, 0x0) r4 = socket$inet_dccp(0x2, 0x6, 0x0) getsockopt$inet_int(r4, 0x10d, 0x0, 0x0, &(0x7f0000000000)) r5 = socket$inet_dccp(0x2, 0x6, 0x0) getsockopt$inet_int(r5, 0x10d, 0x6, 0x0, &(0x7f0000000000)) [ 59.238302][ T8366] device hsr_slave_0 entered promiscuous mode [ 59.266476][ T8366] device hsr_slave_1 entered promiscuous mode [ 59.306061][ T8366] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.342835][ T8372] chnl_net:caif_netlink_parms(): no params data found [ 59.367157][ T8377] IPVS: ftp: loaded support on port[0] = 21 [ 59.388220][ T8368] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 59.441473][ T8368] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 59.516642][ T8368] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.590406][ T8368] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 59.639953][ T8366] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.708957][ T8366] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.742134][ T8366] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.804931][ T8379] IPVS: ftp: loaded support on port[0] = 21 [ 59.829512][ T8366] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.957008][ T8374] chnl_net:caif_netlink_parms(): no params data found [ 59.968254][ T8372] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.975341][ T8372] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.983584][ T8372] device bridge_slave_0 entered promiscuous mode [ 59.992931][ T8372] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.000262][ T8372] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.008278][ T8372] device bridge_slave_1 entered promiscuous mode [ 60.090371][ T8372] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.101694][ T8372] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.125079][ T8374] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.132949][ T8374] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.140972][ T8374] device bridge_slave_0 entered promiscuous mode [ 60.150079][ T8374] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.157704][ T8374] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.165776][ T8374] device bridge_slave_1 entered promiscuous mode [ 60.191393][ T8379] chnl_net:caif_netlink_parms(): no params data found [ 60.221484][ T8372] team0: Port device team_slave_0 added [ 60.254815][ T8374] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.264985][ T8372] team0: Port device team_slave_1 added [ 60.283446][ T8379] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.290737][ T8379] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.299001][ T8379] device bridge_slave_0 entered promiscuous mode [ 60.316928][ T8374] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.332615][ T8366] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.398471][ T8372] device hsr_slave_0 entered promiscuous mode [ 60.436662][ T8372] device hsr_slave_1 entered promiscuous mode [ 60.486163][ T8372] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.493889][ T8379] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.501532][ T8379] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.509742][ T8379] device bridge_slave_1 entered promiscuous mode [ 60.533951][ T8374] team0: Port device team_slave_0 added [ 60.546352][ T8374] team0: Port device team_slave_1 added [ 60.562548][ T8379] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.574252][ T8377] chnl_net:caif_netlink_parms(): no params data found [ 60.598879][ T8379] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.621873][ T3750] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.630071][ T3750] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.685854][ T8366] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.738668][ T8374] device hsr_slave_0 entered promiscuous mode [ 60.786405][ T8374] device hsr_slave_1 entered promiscuous mode [ 60.826118][ T8374] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.835573][ T8379] team0: Port device team_slave_0 added [ 60.843958][ T8379] team0: Port device team_slave_1 added [ 60.850546][ T8377] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.857790][ T8377] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.865402][ T8377] device bridge_slave_0 entered promiscuous mode [ 60.873193][ T8372] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 60.929297][ T8372] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 61.012557][ T8377] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.020611][ T8377] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.028943][ T8377] device bridge_slave_1 entered promiscuous mode [ 61.045181][ T8372] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 61.128965][ T8379] device hsr_slave_0 entered promiscuous mode [ 61.166545][ T8379] device hsr_slave_1 entered promiscuous mode [ 61.206098][ T8379] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.216977][ T8377] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.228173][ T8377] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.240017][ T8372] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.310262][ T3086] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.319105][ T3086] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.328118][ T3086] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.335227][ T3086] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.360974][ T3086] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.390830][ T8377] team0: Port device team_slave_0 added [ 61.399875][ T8368] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.408159][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.417257][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.425563][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.432688][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.447586][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.458208][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.469703][ T8374] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 61.540011][ T8377] team0: Port device team_slave_1 added [ 61.546271][ T8374] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 61.633645][ T3750] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.643769][ T3750] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.653589][ T3750] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.661536][ T3750] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.670427][ T3750] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.679353][ T8374] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 61.750559][ T8374] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 61.811847][ T8379] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 61.852043][ T8379] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 61.919049][ T8379] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 61.978818][ T8379] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 62.089443][ T8377] device hsr_slave_0 entered promiscuous mode [ 62.136482][ T8377] device hsr_slave_1 entered promiscuous mode [ 62.176242][ T8377] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.183950][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.193491][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.202392][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.210481][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.221109][ T8366] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.233103][ T8366] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.257858][ T3086] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.267623][ T3086] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.278798][ T8368] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.311707][ T8366] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.338414][ T8372] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.353259][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.361761][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.370558][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.379574][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.388022][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.395494][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.403148][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.411956][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.420614][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.427737][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.435214][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.444819][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.453417][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.462027][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.470731][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.479473][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.488207][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.497514][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.505647][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.514251][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.522912][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.530777][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.562162][ T8368] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.574470][ T3750] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.588464][ T3750] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.610291][ T8372] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.654721][ T8379] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.690658][ T8374] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.698602][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.721302][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.735313][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.742437][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.756335][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.763812][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.776779][ T8377] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 167.705919][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 167.712943][ C0] rcu: 0-...!: (10499 ticks this GP) idle=426/1/0x4000000000000002 softirq=9992/9994 fqs=39 [ 167.723608][ C0] (t=10501 jiffies g=6601 q=85) [ 167.728541][ C0] rcu: rcu_preempt kthread starved for 10424 jiffies! g6601 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 167.739631][ C0] rcu: RCU grace-period kthread stack dump: [ 167.745611][ C0] rcu_preempt R running task 28864 10 2 0x80004000 [ 167.753637][ C0] Call Trace: [ 167.757077][ C0] __schedule+0x9a0/0xcc0 [ 167.761425][ C0] schedule+0x181/0x210 [ 167.765590][ C0] schedule_timeout+0x14f/0x240 [ 167.770435][ C0] ? run_local_timers+0x120/0x120 [ 167.775456][ C0] rcu_gp_kthread+0xed8/0x1770 [ 167.780335][ C0] kthread+0x332/0x350 [ 167.784403][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 167.789514][ C0] ? kthread_blkcg+0xe0/0xe0 [ 167.794102][ C0] ret_from_fork+0x24/0x30 [ 167.798524][ C0] NMI backtrace for cpu 0 [ 167.802943][ C0] CPU: 0 PID: 334 Comm: kworker/u4:5 Not tainted 5.4.0-syzkaller #0 [ 167.811098][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.821187][ C0] Workqueue: 0x0 (gid-cache-wq) [ 167.826113][ C0] Call Trace: [ 167.829417][ C0] [ 167.832288][ C0] dump_stack+0x1fb/0x318 [ 167.836622][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 167.841472][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 167.847746][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 167.853807][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 167.859923][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 167.865828][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 167.871064][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 167.876269][ C0] ? trace_hardirqs_off+0x74/0x80 [ 167.881410][ C0] update_process_times+0x12d/0x180 [ 167.886631][ C0] tick_sched_timer+0x263/0x420 [ 167.891487][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 167.897144][ C0] __hrtimer_run_queues+0x403/0x840 [ 167.902486][ C0] hrtimer_interrupt+0x38c/0xda0 [ 167.907446][ C0] ? debug_smp_processor_id+0x9/0x20 [ 167.912737][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 167.918279][ C0] apic_timer_interrupt+0xf/0x20 [ 167.923391][ C0] [ 167.926328][ C0] RIP: 0010:mod_memcg_page_state+0x6/0x190 [ 167.932123][ C0] Code: 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 48 83 c3 38 48 89 [ 167.951734][ C0] RSP: 0018:ffffc90001ae7c18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 167.960158][ C0] RAX: 1ffff1101467c171 RBX: ffff8880a33e0b88 RCX: 0000000000000000 [ 167.968125][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00028bf200 [ 167.976204][ C0] RBP: ffffc90001ae7c20 R08: 000000000003a768 R09: ffffed1014325f3f [ 167.984205][ C0] R10: ffffed1014325f3f R11: 0000000000000000 R12: ffff8880a33e0c20 [ 167.992171][ C0] R13: dffffc0000000000 R14: 1ffff1101467c184 R15: ffff8880a192f9e8 [ 168.000178][ C0] free_thread_stack+0x168/0x590 [ 168.005114][ C0] put_task_stack+0xa3/0x130 [ 168.009700][ C0] finish_task_switch+0x3f1/0x550 [ 168.014794][ C0] __schedule+0x9a8/0xcc0 [ 168.019261][ C0] schedule+0x181/0x210 [ 168.023850][ C0] worker_thread+0x10d6/0x1630 [ 168.028633][ C0] kthread+0x332/0x350 [ 168.032702][ C0] ? rcu_lock_release+0x30/0x30 [ 168.037597][ C0] ? kthread_blkcg+0xe0/0xe0 [ 168.043307][ C0] ret_from_fork+0x24/0x30