[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 52.630870][ T26] audit: type=1800 audit(1578465739.120:25): pid=8397 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 52.675778][ T26] audit: type=1800 audit(1578465739.120:26): pid=8397 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 52.711768][ T26] audit: type=1800 audit(1578465739.120:27): pid=8397 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 '10.128.0.53' (ECDSA) to the list of known hosts. 2020/01/08 06:42:28 fuzzer started 2020/01/08 06:42:30 dialing manager at 10.128.0.26:35703 2020/01/08 06:42:30 syscalls: 2824 2020/01/08 06:42:30 code coverage: enabled 2020/01/08 06:42:30 comparison tracing: enabled 2020/01/08 06:42:30 extra coverage: enabled 2020/01/08 06:42:30 setuid sandbox: enabled 2020/01/08 06:42:30 namespace sandbox: enabled 2020/01/08 06:42:30 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 06:42:30 fault injection: enabled 2020/01/08 06:42:30 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 06:42:30 net packet injection: enabled 2020/01/08 06:42:30 net device setup: enabled 2020/01/08 06:42:30 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 06:42:30 devlink PCI setup: PCI device 0000:00:10.0 is not available 06:42:31 executing program 0: socket$inet6_tcp(0xa, 0x1, 0x0) r0 = creat(&(0x7f0000000040)='./bus\x00', 0x0) fcntl$setstatus(0xffffffffffffffff, 0x4, 0x0) openat$cgroup_ro(0xffffffffffffffff, 0x0, 0x0, 0x0) utimensat(0xffffffffffffffff, &(0x7f0000000100)='./bus\x00', 0x0, 0x100) ioctl$sock_SIOCDELDLCI(0xffffffffffffffff, 0x8981, 0x0) r1 = open(&(0x7f0000000080)='./bus\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0xb, 0x12, r1, 0x0) r2 = syz_open_dev$mice(&(0x7f0000000000)='/dev/input/mice\x00', 0x0, 0x80402) write$FUSE_INIT(r2, &(0x7f0000000040)={0x50}, 0x50) readv(r2, &(0x7f00000019c0)=[{&(0x7f0000000500)=""/4096, 0x1000}], 0x1) ioctl$sock_ifreq(r2, 0x891a, &(0x7f0000000000)={'veth1_to_hsr\x00', @ifru_map={0xc85, 0x3f, 0x5, 0x5, 0x0, 0x8}}) read$FUSE(0xffffffffffffffff, &(0x7f0000003000), 0x1150) openat(0xffffffffffffffff, &(0x7f0000001540)='./file0\x00', 0x0, 0x8) ftruncate(r0, 0x48280) r3 = open(&(0x7f00000004c0)='./bus\x00', 0x2, 0x0) mkdir(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) mount(0x0, &(0x7f0000000200)='./file0\x00', 0x0, 0x0, 0x0) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000caaffb)={0x0, 0x0}, 0x0) r5 = add_key$keyring(&(0x7f00000004c0)='keyring\x00', &(0x7f0000000180)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffe) keyctl$setperm(0x5, r5, 0x202002) keyctl$chown(0x4, r5, r4, 0x0) keyctl$update(0x2, r5, &(0x7f0000000140)="118d65de08aa39a9dc02950f1c7a57c3150cf35ddade5715c0e1b66b7a42f39486cc6a53482ddaf7440c1dfa8f5cc4a08f80d1022615439b04397c162c0f6f77df50a684050861f6d56d41c9ae4227b115e0f026441a5b06a13d0055cbf61e9cd9b0", 0x62) openat$cgroup_ro(0xffffffffffffffff, &(0x7f00000000c0)='io.stat\x00', 0x0, 0x0) write$P9_RATTACH(r3, &(0x7f0000000080)={0x14}, 0xfffffff4) 06:42:31 executing program 1: perf_event_open(&(0x7f0000000080)={0x2, 0x70, 0xeb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) prctl$PR_TASK_PERF_EVENTS_DISABLE(0x1f) syzkaller login: [ 64.918270][ T8565] IPVS: ftp: loaded support on port[0] = 21 [ 64.996633][ T8568] IPVS: ftp: loaded support on port[0] = 21 [ 65.070196][ T8565] chnl_net:caif_netlink_parms(): no params data found 06:42:31 executing program 2: r0 = syz_open_dev$ndb(&(0x7f0000000080)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$NBD_CLEAR_SOCK(r0, 0xab08) [ 65.130456][ T8565] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.139231][ T8565] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.147798][ T8565] device bridge_slave_0 entered promiscuous mode [ 65.157270][ T8565] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.166456][ T8565] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.174233][ T8565] device bridge_slave_1 entered promiscuous mode [ 65.200390][ T8565] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.214776][ T8565] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.252688][ T8565] team0: Port device team_slave_0 added [ 65.279338][ T8565] team0: Port device team_slave_1 added [ 65.292871][ T8568] chnl_net:caif_netlink_parms(): no params data found 06:42:31 executing program 3: r0 = socket$inet_udp(0x2, 0x2, 0x0) close(r0) socket(0x840000000002, 0x3, 0xff) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000080), 0x10) connect$inet(r0, &(0x7f0000000200)={0x2, 0x0, @initdev}, 0x10) write$binfmt_elf32(r0, &(0x7f0000000000)=ANY=[@ANYBLOB="4ef27f45294600000033086c0000000000000000014402051166010000003800000000000044130a000b00000800"/56], 0x38) [ 65.428419][ T8565] device hsr_slave_0 entered promiscuous mode [ 65.477380][ T8565] device hsr_slave_1 entered promiscuous mode [ 65.568528][ T8572] IPVS: ftp: loaded support on port[0] = 21 [ 65.604962][ T8568] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.613544][ T8568] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.623260][ T8568] device bridge_slave_0 entered promiscuous mode [ 65.633439][ T8568] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.652392][ T8568] bridge0: port 2(bridge_slave_1) entered disabled state 06:42:32 executing program 4: openat$cgroup_ro(0xffffffffffffffff, &(0x7f0000000140)='cpuacct.stat\x00', 0x0, 0x0) ioctl$RNDCLEARPOOL(0xffffffffffffffff, 0x5206, &(0x7f0000000440)=0x4) write(0xffffffffffffffff, &(0x7f0000000040)="0f42", 0x2) r0 = openat$kvm(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/kvm\x00', 0x0, 0x0) ioctl$KVM_SET_IRQCHIP(0xffffffffffffffff, 0x8208ae63, &(0x7f0000000180)={0x0, 0x0, @ioapic={0x0, 0x0, 0x0, 0x0, 0x0, [{}, {0x9, 0x0, 0x0, [], 0x6}, {}, {}, {}, {0x5, 0x0, 0x3}, {0x3f, 0x4}, {0xff}, {}, {0xfc}, {0x0, 0xfd}, {}, {0x0, 0x0, 0xfe}, {}, {}, {}, {}, {}, {0x0, 0x0, 0x0, [], 0x5}]}}) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) preadv(0xffffffffffffffff, &(0x7f0000000300)=[{&(0x7f0000000280)=""/36, 0x24}], 0x1, 0x0) write$P9_RRENAMEAT(0xffffffffffffffff, &(0x7f0000000080)={0x7}, 0x7) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000740)={0x3, 0x2, 0xf000, 0x1000, &(0x7f0000000000/0x1000)=nil}) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) add_key$keyring(&(0x7f0000000480)='keyring\x00', 0x0, 0x0, 0x0, 0xfffffffffffffffe) add_key$keyring(&(0x7f0000000340)='keyring\x00', 0x0, 0x0, 0x0, 0x0) ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000500)={[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfb]}) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000000), &(0x7f00000002c0)=0xc) ioctl$KVM_RUN(r2, 0xae80, 0x0) ioctl$KVM_RUN(r2, 0xae80, 0x0) ioctl$KVM_NMI(r2, 0xae9a) ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000380)) ioctl$KVM_RUN(r2, 0xae80, 0x0) [ 65.662879][ T8568] device bridge_slave_1 entered promiscuous mode [ 65.688999][ T8574] IPVS: ftp: loaded support on port[0] = 21 [ 65.740637][ T8568] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.781770][ T8568] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.849611][ T8568] team0: Port device team_slave_0 added [ 65.871013][ T8568] team0: Port device team_slave_1 added [ 65.956920][ T8565] netdevsim netdevsim0 netdevsim0: renamed from eth0 06:42:32 executing program 5: r0 = socket(0x2, 0x803, 0xff) r1 = open(&(0x7f0000000640)='.\x00', 0x0, 0x0) r2 = fcntl$dupfd(r0, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) unshare(0x40600) fallocate(r1, 0x50, 0x0, 0x3) [ 66.007640][ T8572] chnl_net:caif_netlink_parms(): no params data found [ 66.016355][ T8577] IPVS: ftp: loaded support on port[0] = 21 [ 66.033320][ T8565] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.148190][ T8568] device hsr_slave_0 entered promiscuous mode [ 66.185645][ T8568] device hsr_slave_1 entered promiscuous mode [ 66.235525][ T8568] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.243975][ T8568] Cannot create hsr debugfs directory [ 66.254617][ T8565] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.322590][ T8565] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.416409][ T8579] IPVS: ftp: loaded support on port[0] = 21 [ 66.461295][ T8572] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.468752][ T8572] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.477271][ T8572] device bridge_slave_0 entered promiscuous mode [ 66.489004][ T8574] chnl_net:caif_netlink_parms(): no params data found [ 66.519513][ T8572] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.526839][ T8572] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.534574][ T8572] device bridge_slave_1 entered promiscuous mode [ 66.583231][ T8572] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.619737][ T8572] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.649555][ T8574] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.656937][ T8574] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.664480][ T8574] device bridge_slave_0 entered promiscuous mode [ 66.688900][ T8572] team0: Port device team_slave_0 added [ 66.730884][ T8574] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.738115][ T8574] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.746503][ T8574] device bridge_slave_1 entered promiscuous mode [ 66.759823][ T8572] team0: Port device team_slave_1 added [ 66.779445][ T8577] chnl_net:caif_netlink_parms(): no params data found [ 66.848040][ T8572] device hsr_slave_0 entered promiscuous mode [ 66.905728][ T8572] device hsr_slave_1 entered promiscuous mode [ 66.945451][ T8572] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.953219][ T8572] Cannot create hsr debugfs directory [ 66.958891][ T8568] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 67.000390][ T8568] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 67.066221][ T8574] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.080711][ T8574] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.095204][ T8568] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 67.128810][ T8568] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 67.190156][ T8579] chnl_net:caif_netlink_parms(): no params data found [ 67.228611][ T8574] team0: Port device team_slave_0 added [ 67.242819][ T8574] team0: Port device team_slave_1 added [ 67.258456][ T8577] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.266336][ T8577] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.274064][ T8577] device bridge_slave_0 entered promiscuous mode [ 67.317181][ T8574] device hsr_slave_0 entered promiscuous mode [ 67.365810][ T8574] device hsr_slave_1 entered promiscuous mode [ 67.405433][ T8574] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.413126][ T8574] Cannot create hsr debugfs directory [ 67.429017][ T8577] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.436882][ T8577] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.444445][ T8577] device bridge_slave_1 entered promiscuous mode [ 67.466666][ T8579] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.473882][ T8579] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.482935][ T8579] device bridge_slave_0 entered promiscuous mode [ 67.492894][ T8579] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.500082][ T8579] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.508119][ T8579] device bridge_slave_1 entered promiscuous mode [ 67.517512][ T8565] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.557973][ T8579] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.588033][ T8577] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.603028][ T8579] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.630649][ T8565] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.639594][ T8577] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.655233][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.663667][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.735047][ T8577] team0: Port device team_slave_0 added [ 67.750456][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.759378][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.768069][ T2765] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.775226][ T2765] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.784724][ T8579] team0: Port device team_slave_0 added [ 67.799850][ T8574] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 67.849368][ T8577] team0: Port device team_slave_1 added [ 67.863722][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.871990][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.880709][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.889260][ T2765] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.896883][ T2765] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.906757][ T8579] team0: Port device team_slave_1 added [ 67.922090][ T8574] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 67.976489][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.017001][ T8577] device hsr_slave_0 entered promiscuous mode [ 68.065712][ T8577] device hsr_slave_1 entered promiscuous mode [ 68.125398][ T8577] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.133057][ T8577] Cannot create hsr debugfs directory [ 68.139426][ T8572] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 68.187709][ T8572] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 68.238687][ T8574] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 68.267957][ T8574] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 68.325135][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.334585][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.343875][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.352709][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.361842][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.370586][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.378823][ T8572] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 68.437616][ T8572] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 68.497503][ T2686] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.508649][ T2686] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.517450][ T2686] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.527062][ T2686] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.541765][ T8565] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.597174][ T8579] device hsr_slave_0 entered promiscuous mode [ 68.625739][ T8579] device hsr_slave_1 entered promiscuous mode [ 68.685950][ T8579] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.693607][ T8579] Cannot create hsr debugfs directory [ 68.704695][ T8568] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.777352][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.789713][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.802478][ T8568] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.815031][ T2686] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.824202][ T2686] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.853841][ T8565] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.870721][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.882834][ T2768] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.892107][ T2768] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.899259][ T2768] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.952437][ T2763] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.961665][ T2763] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.970784][ T2763] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.979484][ T2763] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.986571][ T2763] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.995140][ T2763] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.003971][ T2763] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.025419][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.034438][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.059465][ T8577] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 69.100217][ T8577] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 69.159832][ T8577] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 69.197948][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.208566][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.217226][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.226984][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.244146][ T8572] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.266843][ T8577] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 69.297191][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.305640][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.314283][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.322791][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.331121][ T2765] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.340763][ T8568] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.354441][ T8565] device veth0_vlan entered promiscuous mode [ 69.362512][ T8579] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 69.431077][ T2686] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.439918][ T2686] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.459988][ T8572] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.473055][ T8574] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.481424][ T8579] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 69.550377][ T8579] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 69.617651][ T2686] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.628735][ T2686] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.636946][ T2686] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.644708][ T2686] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.671091][ T8579] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 69.709527][ T8565] device veth1_vlan entered promiscuous mode [ 69.720048][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.729287][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.737952][ T2904] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.745071][ T2904] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.753059][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.761718][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.770139][ T2904] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.777214][ T2904] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.784669][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.792410][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.801310][ T8574] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.835665][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.843654][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.852095][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.868117][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.878182][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.887085][ T2904] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.894128][ T2904] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.901726][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.911054][ T2904] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.928933][ T8568] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.957069][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.973123][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.983320][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.994254][ T2731] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.001367][ T2731] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.002038][ T26] kauditd_printk_skb: 3 callbacks suppressed [ 70.002054][ T26] audit: type=1804 audit(1578465756.490:31): pid=8585 uid=0 auid=4294967295 ses=4294967295 subj=_ op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir521263008/syzkaller.TSr0zb/0/bus" dev="sda1" ino=16521 res=1 [ 70.010618][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.053032][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.061958][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.071012][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.080768][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.089680][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.098550][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.108008][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.120837][ T26] audit: type=1804 audit(1578465756.610:32): pid=8585 uid=0 auid=4294967295 ses=4294967295 subj=_ op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir521263008/syzkaller.TSr0zb/0/bus" dev="sda1" ino=16521 res=1 [ 70.152059][ T2731] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.232699][ T8568] device veth0_vlan entered promiscuous mode [ 70.263704][ T8568] device veth1_vlan entered promiscuous mode [ 175.045258][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 175.052084][ C1] rcu: 1-....: (10499 ticks this GP) idle=8f2/1/0x4000000000000002 softirq=13958/13958 fqs=2736 [ 175.062837][ C1] (t=10500 jiffies g=6765 q=477) [ 175.067855][ C1] rcu: rcu_preempt kthread starved for 5017 jiffies! g6765 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 175.078848][ C1] rcu: RCU grace-period kthread stack dump: [ 175.084730][ C1] rcu_preempt R running task 28824 10 2 0x80004000 [ 175.092623][ C1] Call Trace: [ 175.095903][ C1] __schedule+0x9a0/0xcc0 [ 175.102662][ C1] schedule+0x181/0x210 [ 175.106862][ C1] schedule_timeout+0x14f/0x240 [ 175.111700][ C1] ? run_local_timers+0x120/0x120 [ 175.116751][ C1] rcu_gp_kthread+0xed8/0x1770 [ 175.121520][ C1] kthread+0x332/0x350 [ 175.125582][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 175.130686][ C1] ? kthread_blkcg+0xe0/0xe0 [ 175.135268][ C1] ret_from_fork+0x24/0x30 [ 175.139699][ C1] NMI backtrace for cpu 1 [ 175.144031][ C1] CPU: 1 PID: 8565 Comm: syz-executor.0 Not tainted 5.5.0-rc5-syzkaller #0 [ 175.152600][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 175.162641][ C1] Call Trace: [ 175.165912][ C1] [ 175.168754][ C1] dump_stack+0x1fb/0x318 [ 175.173085][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 175.177946][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 175.184099][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 175.190158][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 175.196132][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 175.202016][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 175.207120][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 175.212319][ C1] ? trace_hardirqs_off+0x74/0x80 [ 175.217338][ C1] update_process_times+0x12d/0x180 [ 175.222530][ C1] tick_sched_timer+0x263/0x420 [ 175.227387][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 175.232921][ C1] __hrtimer_run_queues+0x403/0x840 [ 175.238123][ C1] hrtimer_interrupt+0x38c/0xda0 [ 175.243070][ C1] ? debug_smp_processor_id+0x9/0x20 [ 175.248369][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 175.253905][ C1] apic_timer_interrupt+0xf/0x20 [ 175.258823][ C1] [ 175.261768][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 [ 175.267820][ C1] Code: 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d f4 f4 ed 07 48 89 de e8 84 f4 3b 00 5b 5d c3 cc <48> 8b 04 24 65 48 8b 0c 25 c0 1d 02 00 65 8b 15 38 5f 8b 7e f7 c2 [ 175.287421][ C1] RSP: 0018:ffffc90002327b98 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 175.295817][ C1] RAX: 1ffffd40005157c7 RBX: 0000000000000000 RCX: ffff88809457a500 [ 175.303868][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00028abe00 [ 175.312003][ C1] RBP: ffffc90002327bc0 R08: 000000000003a728 R09: ffffed1011873ad1 [ 175.319968][ C1] R10: ffffed1011873ad1 R11: 0000000000000000 R12: dffffc0000000000 [ 175.327929][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff88808c39d678 [ 175.335911][ C1] ? free_thread_stack+0x124/0x590 [ 175.341045][ C1] ? mod_memcg_page_state+0x123/0x190 [ 175.346424][ C1] free_thread_stack+0x168/0x590 [ 175.351355][ C1] put_task_stack+0xa3/0x130 [ 175.355932][ C1] finish_task_switch+0x3f1/0x550 [ 175.360953][ C1] __schedule+0x9a8/0xcc0 [ 175.365378][ C1] schedule+0x181/0x210 [ 175.369616][ C1] do_nanosleep+0x1d0/0x6c0 [ 175.374120][ C1] hrtimer_nanosleep+0x3a6/0x5b0 [ 175.379049][ C1] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 175.384843][ C1] __x64_sys_nanosleep+0x186/0x1d0 [ 175.389947][ C1] do_syscall_64+0xf7/0x1c0 [ 175.394441][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 175.400318][ C1] RIP: 0033:0x4593f0 [ 175.404203][ C1] Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d 41 f5 61 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 d1 fb ff c3 48 83 ec 08 e8 ea 46 00 00 [ 175.423799][ C1] RSP: 002b:00007ffd4f7a4308 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 [ 175.432242][ C1] RAX: ffffffffffffffda RBX: 0000000000011157 RCX: 00000000004593f0 [ 175.440201][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffd4f7a4310 [ 175.448511][ C1] RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000001a1c940 [ 175.456470][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 175.464433][ C1] R13: 00007ffd4f7a4360 R14: 0000000000011143 R15: 00007ffd4f7a4370