[ 44.702879][ T26] audit: type=1800 audit(1575412986.248:26): pid=8071 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.729932][ T26] audit: type=1800 audit(1575412986.258:27): pid=8071 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 44.769626][ T26] audit: type=1800 audit(1575412986.258:28): pid=8071 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 45.306143][ T26] audit: type=1800 audit(1575412986.888:29): pid=8071 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 '10.128.1.13' (ECDSA) to the list of known hosts. 2019/12/03 22:43:17 fuzzer started 2019/12/03 22:43:18 dialing manager at 10.128.0.26:42111 2019/12/03 22:43:18 syscalls: 2689 2019/12/03 22:43:18 code coverage: enabled 2019/12/03 22:43:18 comparison tracing: enabled 2019/12/03 22:43:18 extra coverage: extra coverage is not supported by the kernel 2019/12/03 22:43:18 setuid sandbox: enabled 2019/12/03 22:43:18 namespace sandbox: enabled 2019/12/03 22:43:18 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 22:43:18 fault injection: enabled 2019/12/03 22:43:18 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 22:43:18 net packet injection: enabled 2019/12/03 22:43:18 net device setup: enabled 2019/12/03 22:43:18 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 22:43:18 devlink PCI setup: PCI device 0000:00:10.0 is not available 22:43:19 executing program 0: r0 = socket$inet6(0xa, 0x2, 0x0) r1 = socket$inet(0x2, 0x2, 0x0) bind$inet(r1, &(0x7f0000000040)={0x2, 0xe21}, 0x10) r2 = dup(r0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) r4 = dup(r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) bind$inet6(r2, &(0x7f0000000140)={0xa, 0x4e21, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r2, &(0x7f0000000180)={0xa, 0x4e3d, 0x0, @empty}, 0x1c) r5 = syz_open_procfs(0x0, &(0x7f0000000240)='net/udp6\x00') sendfile(r0, r5, 0x0, 0x40000080000000) 22:43:19 executing program 1: r0 = getpid() sched_setscheduler(r0, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000080)='/dev/nullb0\x00', 0x4000000004002, 0x0) mmap(&(0x7f0000000000/0xe7e000)=nil, 0xe7e000, 0x200000e, 0x10, r1, 0x0) mount(0x0, &(0x7f0000001600)='./file0\x00', &(0x7f0000000200)='cgroup2\x00', 0x0, 0x0) openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x26e1, 0x0) setsockopt$XDP_UMEM_REG(0xffffffffffffffff, 0x11b, 0x4, 0x0, 0x0) getsockname$packet(0xffffffffffffffff, 0x0, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, 0x0) r2 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000280)='/dev/nullb0\x00', 0x4400, 0x0) preadv(r2, &(0x7f0000000040)=[{&(0x7f0000000400)=""/4096, 0x3ffc00}], 0x1, 0x0) lstat(&(0x7f00000002c0)='./file0\x00', &(0x7f0000000300)) syzkaller login: [ 57.840903][ T8233] IPVS: ftp: loaded support on port[0] = 21 22:43:19 executing program 2: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0xb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8001}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000440)={0x2, 0x70, 0xb9, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x3fbb, 0x9}, 0x0, 0x1, 0x0, 0x0, 0x0, 0xa74a}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = add_key$keyring(&(0x7f0000000080)='keyring\x00', &(0x7f0000000100)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffd) add_key$keyring(&(0x7f00000001c0)='keyring\x00', &(0x7f00000000c0)={'syz', 0x2}, 0x0, 0x0, r0) r1 = openat$vga_arbiter(0xffffffffffffff9c, &(0x7f0000000180)='/dev/vga_arbiter\x00', 0x0, 0x0) ioctl$FS_IOC_FSSETXATTR(r1, 0x401c5820, &(0x7f0000000200)={0xffffff00, 0x7ff, 0xca, 0x7, 0xc568}) keyctl$revoke(0x3, r0) keyctl$get_security(0x11, r0, &(0x7f0000000340)=""/204, 0xcc) mkdir(&(0x7f0000000040)='./file0\x00', 0x0) pipe2$9p(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r3, &(0x7f0000000280)=ANY=[@ANYBLOB="1500000065ffff0180000008003950323030302e4cc74502f987c2cec6504df6ead74ed8a60ab563e98b4b2a3d27a7082dbb78abd55fba3da80b856445ab100621d6234555c08dc540473786cd89e9b08e3f5972fe9ca162b123e19268c89c9dd81c796f27f537cc5a3fb54aff8eaf5b96a6711d4679079d00"/131], 0x15) r4 = dup(r3) write$FUSE_BMAP(r4, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_NOTIFY_RETRIEVE(r4, &(0x7f00000000c0)={0x14c}, 0x137) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000140)='9p\x00', 0x0, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r2}, 0x2c, {'wfdno', 0x3d, r3}}) setxattr$trusted_overlay_upper(&(0x7f0000000080)='./file0\x00', 0x0, &(0x7f0000000740)=ANY=[@ANYBLOB="00fb4007003535612161354c0fb81a15fda9b0690ef605fb19"], 0x1, 0x0) umount2(&(0x7f00000001c0)='./file0\x00', 0x0) getsockopt$SO_TIMESTAMP(0xffffffffffffffff, 0x1, 0x1d, 0x0, &(0x7f0000000240)) r5 = socket$inet(0x2, 0x2, 0x0) setsockopt$inet_mreqsrc(r5, 0x0, 0x27, 0x0, 0x0) getpid() ptrace$pokeuser(0x6, 0x0, 0x388, 0xffffffffffffffff) r6 = getpid() rt_tgsigqueueinfo(r6, r6, 0x0, &(0x7f0000000100)) [ 58.008744][ T8233] chnl_net:caif_netlink_parms(): no params data found [ 58.032152][ T8236] IPVS: ftp: loaded support on port[0] = 21 [ 58.131973][ T8233] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.143927][ T8233] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.162874][ T8233] device bridge_slave_0 entered promiscuous mode [ 58.184086][ T8233] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.191140][ T8233] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.213336][ T8233] device bridge_slave_1 entered promiscuous mode 22:43:19 executing program 3: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x3, &(0x7f0000000080)=[{}, {0xac}, {0x6, 0x0, 0x0, 0x7fffffff}]}) [ 58.276103][ T8239] IPVS: ftp: loaded support on port[0] = 21 [ 58.283894][ T8233] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.375555][ T8233] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.450492][ T8236] chnl_net:caif_netlink_parms(): no params data found [ 58.475471][ T8233] team0: Port device team_slave_0 added [ 58.490360][ T8233] team0: Port device team_slave_1 added 22:43:20 executing program 4: r0 = socket$inet6(0xa, 0x80002, 0x0) r1 = socket$inet6(0xa, 0x5, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r1, 0x29, 0x20, &(0x7f0000000080)={@remote, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f00000000c0)={@dev, 0x800, 0x2, 0x0, 0x0, 0x6}, 0x20) [ 58.542282][ T8236] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.562068][ T8236] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.583647][ T8236] device bridge_slave_0 entered promiscuous mode [ 58.654758][ T8236] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.661839][ T8236] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.685128][ T8236] device bridge_slave_1 entered promiscuous mode 22:43:20 executing program 5: r0 = socket$inet(0x10, 0x2, 0x0) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) io_uring_setup(0xd91, &(0x7f0000000380)={0x0, 0x0, 0x4}) [ 58.775627][ T8233] device hsr_slave_0 entered promiscuous mode [ 58.853060][ T8233] device hsr_slave_1 entered promiscuous mode [ 58.922529][ T8236] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.936172][ T8245] IPVS: ftp: loaded support on port[0] = 21 [ 58.937824][ T8242] IPVS: ftp: loaded support on port[0] = 21 [ 58.960627][ T8247] IPVS: ftp: loaded support on port[0] = 21 [ 58.970816][ T8236] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.988947][ T8239] chnl_net:caif_netlink_parms(): no params data found [ 59.045858][ T8236] team0: Port device team_slave_0 added [ 59.066331][ T8239] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.075007][ T8239] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.082490][ T8239] device bridge_slave_0 entered promiscuous mode [ 59.097673][ T8236] team0: Port device team_slave_1 added [ 59.103849][ T8233] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.157111][ T8233] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.205981][ T8233] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.265815][ T8239] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.274166][ T8239] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.281796][ T8239] device bridge_slave_1 entered promiscuous mode [ 59.301241][ T8239] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.313702][ T8239] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.323244][ T8233] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.454886][ T8236] device hsr_slave_0 entered promiscuous mode [ 59.504578][ T8236] device hsr_slave_1 entered promiscuous mode [ 59.542936][ T8236] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.562551][ T8239] team0: Port device team_slave_0 added [ 59.573818][ T8239] team0: Port device team_slave_1 added [ 59.646270][ T8236] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 59.707775][ T8236] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 59.805681][ T8239] device hsr_slave_0 entered promiscuous mode [ 59.853588][ T8239] device hsr_slave_1 entered promiscuous mode [ 59.922842][ T8239] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.938987][ T8236] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.986661][ T8236] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 60.100412][ T8242] chnl_net:caif_netlink_parms(): no params data found [ 60.131181][ T8245] chnl_net:caif_netlink_parms(): no params data found [ 60.140288][ T8239] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 60.188083][ T8247] chnl_net:caif_netlink_parms(): no params data found [ 60.217786][ T8239] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 60.254177][ T8242] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.261252][ T8242] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.269123][ T8242] device bridge_slave_0 entered promiscuous mode [ 60.289850][ T8245] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.297322][ T8245] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.305876][ T8245] device bridge_slave_0 entered promiscuous mode [ 60.314759][ T8245] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.321792][ T8245] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.329536][ T8245] device bridge_slave_1 entered promiscuous mode [ 60.336784][ T8239] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 60.385295][ T8242] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.392381][ T8242] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.400484][ T8242] device bridge_slave_1 entered promiscuous mode [ 60.422271][ T8233] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.437047][ T8239] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 60.514972][ T8245] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.533335][ T8247] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.540395][ T8247] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.548885][ T8247] device bridge_slave_0 entered promiscuous mode [ 60.557911][ T8242] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.568421][ T8245] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.593117][ T8247] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.600170][ T8247] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.609110][ T8247] device bridge_slave_1 entered promiscuous mode [ 60.616905][ T8242] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.632043][ T8233] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.647831][ T8245] team0: Port device team_slave_0 added [ 60.658368][ T8245] team0: Port device team_slave_1 added [ 60.671251][ T3072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.679596][ T3072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.711163][ T8247] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.728021][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.737583][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.746769][ T2723] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.753982][ T2723] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.761869][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.771353][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.779900][ T2723] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.787076][ T2723] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.795115][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.805015][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.818439][ T8236] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.833086][ T8247] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.844077][ T8242] team0: Port device team_slave_0 added [ 60.855541][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.906076][ T8245] device hsr_slave_0 entered promiscuous mode [ 60.933141][ T8245] device hsr_slave_1 entered promiscuous mode [ 60.972834][ T8245] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.981597][ T8242] team0: Port device team_slave_1 added [ 60.995740][ T8247] team0: Port device team_slave_0 added [ 61.004890][ T8247] team0: Port device team_slave_1 added [ 61.012586][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.021145][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.029600][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.038704][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.047421][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.055718][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.066171][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.079166][ T8236] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.155248][ T8247] device hsr_slave_0 entered promiscuous mode [ 61.193298][ T8247] device hsr_slave_1 entered promiscuous mode [ 61.233065][ T8247] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.243303][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.250876][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.266600][ T8233] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.315859][ T8242] device hsr_slave_0 entered promiscuous mode [ 61.353180][ T8242] device hsr_slave_1 entered promiscuous mode [ 61.393073][ T8242] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.409787][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.421277][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.429493][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.438443][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.446994][ T2723] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.454089][ T2723] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.461881][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.470721][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.479203][ T2723] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.486266][ T2723] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.493902][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.502418][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.521887][ T8239] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.548240][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.558570][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.568317][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.577138][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.591446][ T8245] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 61.638926][ T8245] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 61.697449][ T8245] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 61.758602][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.767329][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.786818][ T8245] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 61.860200][ T8236] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.873425][ T8236] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.896293][ T3072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.910881][ T3072] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.920925][ T3072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.929374][ T3072] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.938084][ T3072] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.953796][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.961423][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.969905][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.977757][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.985717][ T8242] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 62.014702][ T8247] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 62.067258][ T8247] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 62.133717][ T8239] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.144707][ T8242] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 62.178991][ T8233] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.186454][ T8247] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 62.234992][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.244428][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.253486][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.260581][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.269604][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.285496][ T8242] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 62.325289][ T8242] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 62.364790][ T8247] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 62.448264][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.457030][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.465865][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.472971][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.480493][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.489159][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.496652][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.539973][ T8252] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.550320][ T8252] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.559521][ T8252] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.568309][ T8252] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.576877][ T8252] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.589506][ T8252] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.602069][ T8236] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.670298][ T8239] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 62.694770][ T8239] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.746763][ T8247] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.770639][ T8247] 8021q: adding VLAN 0 to HW filter on device team0 [ 167.722742][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 167.729853][ C1] rcu: 1-...!: (10499 ticks this GP) idle=13a/1/0x4000000000000002 softirq=11999/11999 fqs=3 [ 167.740353][ C1] (t=10500 jiffies g=6557 q=292) [ 167.745381][ C1] rcu: rcu_preempt kthread starved for 10494 jiffies! g6557 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 167.756473][ C1] rcu: RCU grace-period kthread stack dump: [ 167.762360][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 167.770258][ C1] Call Trace: [ 167.774509][ C1] __schedule+0x9a0/0xcc0 [ 167.778845][ C1] schedule+0x181/0x210 [ 167.783171][ C1] schedule_timeout+0x14f/0x240 [ 167.788015][ C1] ? run_local_timers+0x120/0x120 [ 167.793051][ C1] rcu_gp_kthread+0xed8/0x1770 [ 167.797904][ C1] kthread+0x332/0x350 [ 167.801965][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 167.807069][ C1] ? kthread_blkcg+0xe0/0xe0 [ 167.811651][ C1] ret_from_fork+0x24/0x30 [ 167.816079][ C1] NMI backtrace for cpu 1 [ 167.820402][ C1] CPU: 1 PID: 8242 Comm: syz-executor.3 Not tainted 5.4.0-syzkaller #0 [ 167.828625][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.838672][ C1] Call Trace: [ 167.841950][ C1] [ 167.844802][ C1] dump_stack+0x1fb/0x318 [ 167.849213][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 167.854058][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 167.860206][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 167.866356][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 167.872332][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 167.878218][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 167.883341][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 167.888624][ C1] ? trace_hardirqs_off+0x74/0x80 [ 167.893649][ C1] update_process_times+0x12d/0x180 [ 167.898840][ C1] tick_sched_timer+0x263/0x420 [ 167.903682][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 167.909396][ C1] __hrtimer_run_queues+0x403/0x840 [ 167.914674][ C1] hrtimer_interrupt+0x38c/0xda0 [ 167.919620][ C1] ? debug_smp_processor_id+0x9/0x20 [ 167.924900][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 167.930460][ C1] apic_timer_interrupt+0xf/0x20 [ 167.935388][ C1] [ 167.938320][ C1] RIP: 0010:free_thread_stack+0x133/0x590 [ 167.944033][ C1] Code: 00 ea ff ff 48 01 c7 be 03 00 00 00 e8 06 a2 60 00 e9 5d 04 00 00 e8 5c 2d 2e 00 48 89 df 31 f6 e8 42 af 6e 00 43 80 3c 2e 00 <74> 08 4c 89 e7 e8 43 a4 69 00 49 8b 1c 24 48 83 c3 08 48 89 d8 48 [ 167.963631][ C1] RSP: 0018:ffffc90001f27528 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 167.972044][ C1] RAX: 0000000000000001 RBX: ffffea00029c8400 RCX: 0000000000000000 [ 167.980100][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00029c8400 [ 167.988064][ C1] RBP: ffffc90001f27560 R08: 000000000003a768 R09: ffffed1015081347 [ 167.996028][ C1] R10: ffffed1015081347 R11: 0000000000000000 R12: ffff8880a789b720 [ 168.003993][ C1] R13: dffffc0000000000 R14: 1ffff11014f136e4 R15: ffff8880a8409a28 [ 168.011978][ C1] ? free_thread_stack+0x12e/0x590 [ 168.017120][ C1] put_task_stack+0xa3/0x130 [ 168.021706][ C1] finish_task_switch+0x3f1/0x550 [ 168.026818][ C1] __schedule+0x9a8/0xcc0 [ 168.031221][ C1] ? ___preempt_schedule+0x16/0x18 [ 168.037371][ C1] preempt_schedule+0xdb/0x120 [ 168.042129][ C1] ___preempt_schedule+0x16/0x18 [ 168.047064][ C1] try_to_wake_up+0xe78/0x1050 [ 168.051834][ C1] wake_up_q+0x8c/0xe0 [ 168.055905][ C1] __mutex_unlock_slowpath+0x586/0x5b0 [ 168.061363][ C1] mutex_unlock+0x1b/0x30 [ 168.065684][ C1] __rtnl_unlock+0x2c/0xa0 [ 168.070091][ C1] netdev_run_todo+0xe5/0xe10 [ 168.074781][ C1] rtnetlink_rcv_msg+0x890/0xd40 [ 168.079730][ C1] ? rcu_lock_release+0x9/0x30 [ 168.084584][ C1] ? rcu_lock_release+0x9/0x30 [ 168.089350][ C1] ? rcu_lock_release+0x9/0x30 [ 168.094115][ C1] netlink_rcv_skb+0x19e/0x3d0 [ 168.099135][ C1] ? rtnetlink_bind+0x80/0x80 [ 168.103813][ C1] rtnetlink_rcv+0x1c/0x20 [ 168.108223][ C1] netlink_unicast+0x767/0x920 [ 168.112988][ C1] netlink_sendmsg+0xa21/0xd40 [ 168.117753][ C1] ? netlink_getsockopt+0x9f0/0x9f0 [ 168.122958][ C1] __sys_sendto+0x442/0x5e0 [ 168.127564][ C1] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 168.133623][ C1] ? prepare_exit_to_usermode+0x221/0x5b0 [ 168.139336][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 168.144792][ C1] __x64_sys_sendto+0xe5/0x100 [ 168.149550][ C1] do_syscall_64+0xf7/0x1c0 [ 168.154048][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 168.159934][ C1] RIP: 0033:0x414373 [ 168.163824][ C1] Code: ff 0f 83 b0 19 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d fd 40 66 00 00 75 17 49 89 ca b8 2c 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 81 19 00 00 c3 48 83 ec 08 e8 87 fa ff ff [ 168.183420][ C1] RSP: 002b:00007fff7e699208 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 168.191822][ C1] RAX: ffffffffffffffda RBX: 0000000000a72200 RCX: 0000000000414373 [ 168.199786][ C1] RDX: 000000000000002c RSI: 0000000000a72250 RDI: 0000000000000003 [ 168.207928][ C1] RBP: 0000000000000000 R08: 00007fff7e699210 R09: 000000000000000c [ 168.215930][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 168.223898][ C1] R13: 0000000000000000 R14: 0000000000a72250 R15: 0000000000000003