[ 46.136573][ T25] audit: type=1800 audit(1575441095.764:29): pid=8010 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.191' (ECDSA) to the list of known hosts. 2019/12/04 06:31:44 fuzzer started 2019/12/04 06:31:46 dialing manager at 10.128.0.26:42111 2019/12/04 06:31:46 syscalls: 2689 2019/12/04 06:31:46 code coverage: enabled 2019/12/04 06:31:46 comparison tracing: enabled 2019/12/04 06:31:46 extra coverage: extra coverage is not supported by the kernel 2019/12/04 06:31:46 setuid sandbox: enabled 2019/12/04 06:31:46 namespace sandbox: enabled 2019/12/04 06:31:46 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 06:31:46 fault injection: enabled 2019/12/04 06:31:46 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 06:31:46 net packet injection: enabled 2019/12/04 06:31:46 net device setup: enabled 2019/12/04 06:31:46 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 06:31:46 devlink PCI setup: PCI device 0000:00:10.0 is not available 06:31:47 executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) r1 = msgget$private(0x0, 0x0) msgsnd(r1, &(0x7f0000000140)=ANY=[@ANYBLOB="cc"], 0x1, 0x0) msgctl$IPC_SET(r1, 0x1, &(0x7f0000000540)) msgsnd(r1, &(0x7f0000000000)=ANY=[@ANYPTR64=&(0x7f0000000300)=ANY=[]], 0x1, 0x0) msgrcv(r1, &(0x7f0000000040), 0x8, 0x0, 0x0) 06:31:48 executing program 1: unshare(0x0) r0 = getpid() sched_setscheduler(r0, 0x5, &(0x7f0000000000)) openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000680)='/dev/infiniband/rdma_cm\x00', 0x2, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f00000001c0)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TCSETS(r1, 0x40045431, &(0x7f00005befdc)) r2 = syz_open_pts(r1, 0x0) fcntl$setstatus(r2, 0x4, 0x102800) socket$inet_udplite(0x2, 0x2, 0x88) add_key$user(0x0, &(0x7f0000000400)={'syz', 0x0}, 0x0, 0x0, 0xfffffffffffffffe) socketpair$unix(0x1, 0x3, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) ioctl$EVIOCGVERSION(0xffffffffffffffff, 0x80044501, 0x0) add_key$user(&(0x7f0000000000)='user\x00', 0x0, &(0x7f00000000c0), 0x0, 0xfffffffffffffffd) add_key$keyring(0x0, &(0x7f00000003c0)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffb) add_key$keyring(0x0, &(0x7f0000000080)={'syz', 0x2}, 0x0, 0x0, 0x0) read(0xffffffffffffffff, 0x0, 0x0) syz_open_dev$mouse(&(0x7f0000000040)='/dev/input/mouse#\x00', 0x0, 0x400) openat$vga_arbiter(0xffffffffffffff9c, &(0x7f0000000140)='/dev/vga_arbiter\x00', 0x0, 0x0) r3 = creat(&(0x7f0000000140)='./file0\x00', 0x0) write$P9_RREAD(0xffffffffffffffff, &(0x7f00000003c0)=ANY=[@ANYBLOB], 0x0) fallocate(r3, 0x0, 0x40000, 0x0) fallocate(0xffffffffffffffff, 0x0, 0x0, 0x110001) ioctl$EXT4_IOC_MOVE_EXT(0xffffffffffffffff, 0xc028660f, &(0x7f0000000040)={0xd000000, 0xffffffffffffffff, 0x0, 0x8}) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140)='nbd\x00') r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='stat\t\xc0\xd2\xfe\xbc\xf9\xdf-\xea\xc8\xc1w\xff\x17\x12H\xe9\x11\x93Q0I\xf81U\ro}\xe6l\xf67\xbd\xbf\x13\x11\x92\f\x8a&\xed\xa4\xdc\xc3x?\x9d\xb5\x11k4\xd3\x1b\x05\x12\xa5`\x8a\xaf\xf0\x1eyR4\f\xd6\xfd\x00\x00\x00\x00', 0x275a, 0x0) r6 = creat(&(0x7f0000000140)='./file0\x00', 0x0) write$P9_RREAD(r6, &(0x7f00000003c0)=ANY=[@ANYBLOB], 0x0) fallocate(r6, 0x0, 0x40000, 0x4) fdatasync(r6) ioctl$EXT4_IOC_MOVE_EXT(r5, 0xc028660f, &(0x7f0000000040)={0xd000000, r6, 0x0, 0x8}) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000280)={&(0x7f00000001c0)={0x38, r4, 0x2, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, [{0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}]}, 0x38}, 0x1, 0x0, 0x0, 0x1}, 0x0) r7 = creat(&(0x7f0000000180)='./bus\x00', 0x0) ioctl$FS_IOC_GETFSMAP(r7, 0xc0c0583b, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000100)={0x3c, 0x0, 0x4, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}]}, 0x3c}}, 0x4008800) syzkaller login: [ 58.408941][ T8176] IPVS: ftp: loaded support on port[0] = 21 [ 58.558665][ T8178] IPVS: ftp: loaded support on port[0] = 21 [ 58.633024][ T8176] chnl_net:caif_netlink_parms(): no params data found 06:31:48 executing program 2: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000004ff0)={0x3, &(0x7f0000000180)=[{0x45, 0x0, 0x1, 0x81000000}, {}, {0x6}]}, 0x10) [ 58.771724][ T8176] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.782052][ T8176] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.800555][ T8176] device bridge_slave_0 entered promiscuous mode [ 58.825592][ T8178] chnl_net:caif_netlink_parms(): no params data found [ 58.851911][ T8176] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.858986][ T8176] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.871512][ T8176] device bridge_slave_1 entered promiscuous mode [ 58.894935][ T8182] IPVS: ftp: loaded support on port[0] = 21 [ 58.919084][ T8176] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.938876][ T8176] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.957127][ T8178] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.965239][ T8178] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.974224][ T8178] device bridge_slave_0 entered promiscuous mode [ 58.991723][ T8178] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.998859][ T8178] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.008057][ T8178] device bridge_slave_1 entered promiscuous mode 06:31:48 executing program 3: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000200)) r2 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r1, &(0x7f00000001c0)) epoll_ctl$EPOLL_CTL_MOD(r2, 0x3, r1, &(0x7f00000003c0)={0x3}) [ 59.025509][ T8176] team0: Port device team_slave_0 added [ 59.042552][ T8176] team0: Port device team_slave_1 added [ 59.055186][ T8178] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.097926][ T8178] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.161868][ T8178] team0: Port device team_slave_0 added [ 59.179870][ T8178] team0: Port device team_slave_1 added 06:31:48 executing program 4: r0 = socket$isdn_base(0x22, 0x3, 0x0) ioctl$IMGETDEVINFO(r0, 0x80044944, 0x0) [ 59.242125][ T8176] device hsr_slave_0 entered promiscuous mode [ 59.279703][ T8176] device hsr_slave_1 entered promiscuous mode [ 59.363494][ T8184] IPVS: ftp: loaded support on port[0] = 21 [ 59.402760][ T8178] device hsr_slave_0 entered promiscuous mode [ 59.431867][ T8178] device hsr_slave_1 entered promiscuous mode [ 59.469432][ T8178] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.534529][ T8186] IPVS: ftp: loaded support on port[0] = 21 06:31:49 executing program 5: perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000001200)={0x26, 'hash\x00', 0x0, 0x0, 'michael_mic-generic\x00'}, 0x58) r1 = accept4$alg(r0, 0x0, 0x0, 0x0) io_setup(0x20000000001005, &(0x7f0000000880)=0x0) io_submit(r2, 0x1, &(0x7f0000001440)=[&(0x7f0000000200)={0x5000000, 0x0, 0x700000000000000, 0x1, 0x0, r1, 0x0}]) [ 59.679175][ T8176] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.712921][ T8178] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 59.772671][ T8178] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 59.853306][ T8176] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.936287][ T8178] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.946119][ T8189] IPVS: ftp: loaded support on port[0] = 21 [ 59.980937][ T8182] chnl_net:caif_netlink_parms(): no params data found [ 60.000719][ T8176] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.073238][ T8176] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.121212][ T8178] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 60.240328][ T8184] chnl_net:caif_netlink_parms(): no params data found [ 60.304126][ T8184] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.312026][ T8184] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.320078][ T8184] device bridge_slave_0 entered promiscuous mode [ 60.332085][ T8184] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.339131][ T8184] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.346848][ T8184] device bridge_slave_1 entered promiscuous mode [ 60.374313][ T8186] chnl_net:caif_netlink_parms(): no params data found [ 60.412668][ T8182] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.420292][ T8182] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.427864][ T8182] device bridge_slave_0 entered promiscuous mode [ 60.438424][ T8182] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.445530][ T8182] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.453296][ T8182] device bridge_slave_1 entered promiscuous mode [ 60.463742][ T8184] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.490704][ T8189] chnl_net:caif_netlink_parms(): no params data found [ 60.515098][ T8184] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.556765][ T8182] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.585173][ T8184] team0: Port device team_slave_0 added [ 60.592981][ T8189] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.601001][ T8189] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.608659][ T8189] device bridge_slave_0 entered promiscuous mode [ 60.621027][ T8182] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.634392][ T8186] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.642095][ T8186] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.650182][ T8186] device bridge_slave_0 entered promiscuous mode [ 60.658595][ T8184] team0: Port device team_slave_1 added [ 60.665301][ T8189] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.672692][ T8189] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.680549][ T8189] device bridge_slave_1 entered promiscuous mode [ 60.700405][ T8186] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.707468][ T8186] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.718146][ T8186] device bridge_slave_1 entered promiscuous mode [ 60.781239][ T8184] device hsr_slave_0 entered promiscuous mode [ 60.819790][ T8184] device hsr_slave_1 entered promiscuous mode [ 60.859352][ T8184] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.898278][ T8189] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.910982][ T8182] team0: Port device team_slave_0 added [ 60.918249][ T8182] team0: Port device team_slave_1 added [ 60.925943][ T8189] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.945534][ T8186] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.957207][ T8186] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.006139][ T8189] team0: Port device team_slave_0 added [ 61.015218][ T8189] team0: Port device team_slave_1 added [ 61.021246][ T8184] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 61.044975][ T8184] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 61.113545][ T8186] team0: Port device team_slave_0 added [ 61.120987][ T8186] team0: Port device team_slave_1 added [ 61.128328][ T8178] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.171265][ T8182] device hsr_slave_0 entered promiscuous mode [ 61.209654][ T8182] device hsr_slave_1 entered promiscuous mode [ 61.249419][ T8182] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.257064][ T8184] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 61.301629][ T8184] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 61.354258][ T8176] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.404778][ T8189] device hsr_slave_0 entered promiscuous mode [ 61.449661][ T8189] device hsr_slave_1 entered promiscuous mode [ 61.499448][ T8189] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.545089][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.554303][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.562780][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.570715][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.612236][ T8186] device hsr_slave_0 entered promiscuous mode [ 61.649880][ T8186] device hsr_slave_1 entered promiscuous mode [ 61.692188][ T8186] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.708929][ T8178] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.720912][ T8176] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.740915][ T8182] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 61.761909][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.771036][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.779679][ T8193] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.779729][ T8193] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.780760][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.803559][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.811981][ T8193] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.819274][ T8193] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.827143][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.835180][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.843256][ T8189] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 61.912071][ T8189] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 61.974759][ T8189] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 62.031239][ T8189] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 62.071530][ T8182] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 62.132123][ T8182] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 62.185093][ T8182] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 62.224178][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.233676][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.242416][ T2726] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.249507][ T2726] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.257349][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.292978][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.301720][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.311621][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.318660][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.326562][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.336212][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.344919][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.375214][ T8184] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.395978][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.405193][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.414074][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.424219][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.433274][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.441635][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.449867][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.458286][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.468008][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.476007][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.484523][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.493636][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.512763][ T8184] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.535253][ T8186] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 62.582950][ T8178] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.595646][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.603861][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.612805][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.625138][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.633758][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.642564][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.651691][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.660378][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.681891][ T8176] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.690473][ T8186] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 62.723024][ T8186] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 62.788338][ T8186] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 62.831337][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.840672][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.849073][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.856203][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.864450][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.873721][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.882327][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.889440][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.897003][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.906155][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.916214][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.940491][ T8178] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.962051][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.973802][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.983171][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.991227][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.998600][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.007501][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.015875][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.024060][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.032574][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.047550][ T8184] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.059448][ T8184] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.079788][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.088076][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.101286][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.108723][ T2726] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.129014][ T8182] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.145509][ T8189] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.176332][ T8176] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.197321][ T8182] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.208300][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.217044][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.224908][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.232600][ T8193] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.249001][ T8189] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.273361][ T8184] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.301588][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.315669][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.330645][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.339304][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.347614][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.354682][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.386313][ T8189] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.399621][ T8189] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.426973][ T8189] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 168.309205][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 168.316046][ C1] rcu: 1-...!: (10499 ticks this GP) idle=546/1/0x4000000000000002 softirq=11292/11294 fqs=39 [ 168.326615][ C1] (t=10500 jiffies g=6461 q=367) [ 168.331627][ C1] rcu: rcu_preempt kthread starved for 10420 jiffies! g6461 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 168.342705][ C1] rcu: RCU grace-period kthread stack dump: [ 168.348584][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 168.356472][ C1] Call Trace: [ 168.359760][ C1] __schedule+0x9a0/0xcc0 [ 168.364086][ C1] schedule+0x181/0x210 [ 168.368230][ C1] schedule_timeout+0x14f/0x240 [ 168.373087][ C1] ? run_local_timers+0x120/0x120 [ 168.378100][ C1] rcu_gp_kthread+0xed8/0x1770 [ 168.382862][ C1] kthread+0x332/0x350 [ 168.386913][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 168.392011][ C1] ? kthread_blkcg+0xe0/0xe0 [ 168.396586][ C1] ret_from_fork+0x24/0x30 [ 168.401000][ C1] NMI backtrace for cpu 1 [ 168.405317][ C1] CPU: 1 PID: 242 Comm: kworker/u4:4 Not tainted 5.4.0-syzkaller #0 [ 168.413274][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 168.423347][ C1] Workqueue: 0x0 (bat_events) [ 168.428094][ C1] Call Trace: [ 168.431362][ C1] [ 168.434203][ C1] dump_stack+0x1fb/0x318 [ 168.438527][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 168.443363][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 168.449504][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 168.455558][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 168.461709][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 168.467587][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 168.472694][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 168.477905][ C1] ? trace_hardirqs_off+0x74/0x80 [ 168.482926][ C1] update_process_times+0x12d/0x180 [ 168.488114][ C1] tick_sched_timer+0x263/0x420 [ 168.492951][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 168.498483][ C1] __hrtimer_run_queues+0x403/0x840 [ 168.503684][ C1] hrtimer_interrupt+0x38c/0xda0 [ 168.508625][ C1] ? debug_smp_processor_id+0x9/0x20 [ 168.513904][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 168.519438][ C1] apic_timer_interrupt+0xf/0x20 [ 168.524355][ C1] [ 168.527284][ C1] RIP: 0010:free_thread_stack+0x177/0x590 [ 168.532991][ C1] Code: 80 3c 28 00 74 08 48 89 df e8 25 a4 69 00 48 8b 3b be fc ff ff ff e8 28 04 00 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 09 a4 69 00 <49> 8b 1c 24 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 [ 168.552596][ C1] RSP: 0018:ffffc90001aa7c30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 168.561120][ C1] RAX: ffffffff81487433 RBX: ffff888089029308 RCX: ffff8880a9348080 [ 168.569088][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea000249f780 [ 168.577055][ C1] RBP: ffffc90001aa7c68 R08: 000000000003a768 R09: ffffed10150c027f [ 168.585025][ C1] R10: ffffed10150c027f R11: 0000000000000000 R12: ffff8880890293a0 [ 168.592985][ C1] R13: dffffc0000000000 R14: 1ffff11011205274 R15: ffff8880a86013e8 [ 168.600962][ C1] ? mod_memcg_page_state+0x123/0x190 [ 168.606371][ C1] put_task_stack+0xa3/0x130 [ 168.610963][ C1] finish_task_switch+0x3f1/0x550 [ 168.615982][ C1] __schedule+0x9a8/0xcc0 [ 168.620309][ C1] schedule+0x181/0x210 [ 168.624470][ C1] worker_thread+0x10d6/0x1630 [ 168.629243][ C1] kthread+0x332/0x350 [ 168.633303][ C1] ? rcu_lock_release+0x30/0x30 [ 168.638141][ C1] ? kthread_blkcg+0xe0/0xe0 [ 168.642719][ C1] ret_from_fork+0x24/0x30