[ 46.198401][ T25] audit: type=1800 audit(1575386262.248:25): pid=8131 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 46.217605][ T25] audit: type=1800 audit(1575386262.258:26): pid=8131 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 46.251653][ T25] audit: type=1800 audit(1575386262.258:27): pid=8131 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 46.287722][ T25] audit: type=1800 audit(1575386262.258:28): pid=8131 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.91' (ECDSA) to the list of known hosts. 2019/12/03 15:17:53 fuzzer started 2019/12/03 15:17:55 dialing manager at 10.128.0.26:45711 2019/12/03 15:17:55 syscalls: 2689 2019/12/03 15:17:55 code coverage: enabled 2019/12/03 15:17:55 comparison tracing: enabled 2019/12/03 15:17:55 extra coverage: extra coverage is not supported by the kernel 2019/12/03 15:17:55 setuid sandbox: enabled 2019/12/03 15:17:55 namespace sandbox: enabled 2019/12/03 15:17:55 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 15:17:55 fault injection: enabled 2019/12/03 15:17:55 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 15:17:55 net packet injection: enabled 2019/12/03 15:17:55 net device setup: enabled 2019/12/03 15:17:55 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 15:17:55 devlink PCI setup: PCI device 0000:00:10.0 is not available 15:17:56 executing program 0: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$misdntimer(0xffffffffffffff9c, &(0x7f0000000200)='/dev/mISDNtimer\x00', 0x0, 0x0) ioctl$IMADDTIMER(r2, 0x80044940, &(0x7f0000000040)=0x32) r3 = bpf$MAP_CREATE(0x0, &(0x7f0000000040)={0x13, 0x10, 0x4}, 0x3c) dup2(r3, r2) 15:17:56 executing program 1: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$inet(0x2, 0x3, 0x19) connect$inet(0xffffffffffffffff, &(0x7f0000000000)={0x2, 0x0, @local}, 0x10) r3 = socket$inet(0x2, 0x3, 0x19) setsockopt$inet_IP_XFRM_POLICY(r3, 0x0, 0x23, &(0x7f0000000000)={{{@in=@multicast2, @in=@multicast1}}, {{@in6}, 0x0, @in6=@loopback}}, 0xe8) setsockopt$inet_msfilter(r3, 0x0, 0x29, &(0x7f00000001c0)={@multicast2, @local, 0x0, 0x1, [@local]}, 0x14) setsockopt$inet_IP_XFRM_POLICY(r2, 0x0, 0x23, &(0x7f0000000000)={{{@in=@multicast2, @in=@multicast1}}, {{@in6}, 0x0, @in6=@loopback}}, 0xe8) close(r2) syzkaller login: [ 60.729966][ T8293] IPVS: ftp: loaded support on port[0] = 21 [ 60.856593][ T8295] IPVS: ftp: loaded support on port[0] = 21 [ 60.908054][ T8293] chnl_net:caif_netlink_parms(): no params data found 15:17:57 executing program 2: perf_event_open(&(0x7f0000000440)={0x2, 0x70, 0x0, 0x2, 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, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) clone(0x2102001ffc, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) mkdir(0x0, 0x0) [ 60.980370][ T8293] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.988782][ T8293] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.997967][ T8293] device bridge_slave_0 entered promiscuous mode [ 61.020909][ T8293] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.028572][ T8293] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.037483][ T8293] device bridge_slave_1 entered promiscuous mode [ 61.116728][ T8293] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.139373][ T8295] chnl_net:caif_netlink_parms(): no params data found [ 61.151516][ T8293] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.200670][ T8293] team0: Port device team_slave_0 added [ 61.214835][ T8295] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.226008][ T8295] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.234243][ T8295] device bridge_slave_0 entered promiscuous mode [ 61.245870][ T8293] team0: Port device team_slave_1 added [ 61.263317][ T8295] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.270442][ T8295] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.278495][ T8295] device bridge_slave_1 entered promiscuous mode 15:17:57 executing program 3: r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) r1 = openat$fb0(0xffffffffffffff9c, &(0x7f0000000040)='/dev/fb0\x00', 0x0, 0x0) close(r1) [ 61.298797][ T8300] IPVS: ftp: loaded support on port[0] = 21 [ 61.321252][ T8295] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.344719][ T8295] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.406115][ T8293] device hsr_slave_0 entered promiscuous mode [ 61.463014][ T8293] device hsr_slave_1 entered promiscuous mode 15:17:57 executing program 4: perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x1f, 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) setsockopt$sock_attach_bpf(0xffffffffffffffff, 0x1, 0xf, 0x0, 0x0) r0 = socket$inet_tcp(0x2, 0x1, 0x0) bind$inet(r0, 0x0, 0x0) pipe(0x0) openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x7a05, 0x1700) ioctl$FS_IOC_RESVSP(0xffffffffffffffff, 0x40305828, 0x0) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0) syz_open_procfs(0xffffffffffffffff, 0x0) r1 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x0, 0x0) dup(r1) syz_open_pts(0xffffffffffffffff, 0x4000000000005) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r2, 0x400454ca, &(0x7f0000000140)={'ip\x8ei0\x00\x00@\x00', 0xc205}) ioctl$TUNSETLINK(r2, 0x400454cd, 0x8000000001) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000100)={0xffffffffffffffff, 0x0, 0x21, 0x0, &(0x7f0000000000)="3f006671d7af52f647750500080089ea010000000000f109a708f78293c8744e1a", 0x0, 0x0, 0x0, 0xffffffffffffffae, 0x34e, 0x0, 0x0}, 0xfffffd1f) r3 = socket$inet(0x2, 0x2, 0x0) ioctl$PERF_EVENT_IOC_PERIOD(r3, 0x8955, &(0x7f0000000000)=0x2) r4 = inotify_init1(0x0) dup2(r4, r2) [ 61.555967][ T8295] team0: Port device team_slave_0 added [ 61.565555][ T8302] IPVS: ftp: loaded support on port[0] = 21 [ 61.598752][ T8295] team0: Port device team_slave_1 added [ 61.666740][ T8293] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.729033][ T8293] netdevsim netdevsim0 netdevsim1: renamed from eth1 15:17:57 executing program 5: r0 = socket(0x10, 0x3, 0x0) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0xc, &(0x7f0000000000)={0x7ff}, 0x10) write(r0, &(0x7f0000000200)="200000001a00010000000066835f7f081c140000011b00010001000004001300", 0x20) [ 61.773908][ T8293] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.814295][ T8293] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.914080][ T8295] device hsr_slave_0 entered promiscuous mode [ 61.952054][ T8295] device hsr_slave_1 entered promiscuous mode [ 62.011920][ T8295] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.048558][ T8306] IPVS: ftp: loaded support on port[0] = 21 [ 62.095203][ T8304] IPVS: ftp: loaded support on port[0] = 21 [ 62.116805][ T8295] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 62.165300][ T8295] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 62.214734][ T8295] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 62.273331][ T8295] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 62.333974][ T8300] chnl_net:caif_netlink_parms(): no params data found [ 62.396363][ T8300] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.403601][ T8300] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.411150][ T8300] device bridge_slave_0 entered promiscuous mode [ 62.419912][ T8300] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.427077][ T8300] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.435108][ T8300] device bridge_slave_1 entered promiscuous mode [ 62.490091][ T8300] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.505050][ T8302] chnl_net:caif_netlink_parms(): no params data found [ 62.525040][ T8300] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.605139][ T8306] chnl_net:caif_netlink_parms(): no params data found [ 62.615601][ T8302] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.623060][ T8302] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.630615][ T8302] device bridge_slave_0 entered promiscuous mode [ 62.640007][ T8302] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.647158][ T8302] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.655896][ T8302] device bridge_slave_1 entered promiscuous mode [ 62.665289][ T8300] team0: Port device team_slave_0 added [ 62.712768][ T8300] team0: Port device team_slave_1 added [ 62.741379][ T8302] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.759149][ T8304] chnl_net:caif_netlink_parms(): no params data found [ 62.780151][ T8302] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.854526][ T8300] device hsr_slave_0 entered promiscuous mode [ 62.892114][ T8300] device hsr_slave_1 entered promiscuous mode [ 62.931747][ T8300] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.965744][ T8306] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.973153][ T8306] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.980818][ T8306] device bridge_slave_0 entered promiscuous mode [ 62.988783][ T8306] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.996950][ T8306] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.005049][ T8306] device bridge_slave_1 entered promiscuous mode [ 63.018051][ T8302] team0: Port device team_slave_0 added [ 63.030445][ T8293] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.061219][ T8302] team0: Port device team_slave_1 added [ 63.084445][ T8306] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.094118][ T8304] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.101179][ T8304] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.110291][ T8304] device bridge_slave_0 entered promiscuous mode [ 63.117965][ T8304] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.125095][ T8304] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.133038][ T8304] device bridge_slave_1 entered promiscuous mode [ 63.148047][ T8306] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.174236][ T8300] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 63.223390][ T8300] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 63.267512][ T8300] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 63.338756][ T8306] team0: Port device team_slave_0 added [ 63.346828][ T8306] team0: Port device team_slave_1 added [ 63.356986][ T8304] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.367258][ T8300] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 63.464360][ T8302] device hsr_slave_0 entered promiscuous mode [ 63.482345][ T8302] device hsr_slave_1 entered promiscuous mode [ 63.541815][ T8302] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.551761][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.560415][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.582239][ T8304] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.594446][ T8293] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.624948][ T8295] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.684422][ T8306] device hsr_slave_0 entered promiscuous mode [ 63.722002][ T8306] device hsr_slave_1 entered promiscuous mode [ 63.761738][ T8306] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.778428][ T8295] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.800249][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.808909][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.817443][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.824686][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.833761][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.841301][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.849124][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.857647][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.866039][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.873112][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.883960][ T8302] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 63.944029][ T8302] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 64.004027][ T8302] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 64.044613][ T8302] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 64.105266][ T8304] team0: Port device team_slave_0 added [ 64.112896][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.120983][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.142821][ T8304] team0: Port device team_slave_1 added [ 64.153661][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.164056][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.172752][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.181024][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.189519][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.197934][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.206418][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.215063][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.237249][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.245831][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.254854][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.261956][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.270283][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.279167][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.287559][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.294635][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.302721][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.320503][ T8293] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.336345][ T8293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.356098][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.364837][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.378454][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.433647][ T8304] device hsr_slave_0 entered promiscuous mode [ 64.471957][ T8304] device hsr_slave_1 entered promiscuous mode [ 64.511734][ T8304] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.528615][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.553886][ T8306] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 64.577781][ T8306] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 64.640737][ T8306] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 64.674899][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.683896][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.691396][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.703486][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.711943][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.720749][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.729665][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.738081][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.746352][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.755067][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.764014][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.778958][ T8293] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.795866][ T8295] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.804278][ T8306] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 64.857022][ T8300] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.900876][ T8300] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.917265][ T8302] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.929528][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.938800][ T8312] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.982613][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.991315][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.025934][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.033818][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.047942][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.057225][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.075386][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.087340][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.102426][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.110319][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.126350][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 170.001546][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 170.008315][ C1] rcu: 1-...!: (10499 ticks this GP) idle=286/1/0x4000000000000002 softirq=11683/11690 fqs=7 [ 170.018949][ C1] (t=10500 jiffies g=6281 q=93) [ 170.023882][ C1] rcu: rcu_preempt kthread starved for 10485 jiffies! g6281 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 170.034975][ C1] rcu: RCU grace-period kthread stack dump: [ 170.040854][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 170.048742][ C1] Call Trace: [ 170.052031][ C1] __schedule+0x9a0/0xcc0 [ 170.056375][ C1] schedule+0x181/0x210 [ 170.060625][ C1] schedule_timeout+0x14f/0x240 [ 170.065484][ C1] ? run_local_timers+0x120/0x120 [ 170.070507][ C1] rcu_gp_kthread+0xed8/0x1770 [ 170.075290][ C1] kthread+0x332/0x350 [ 170.079362][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 170.084468][ C1] ? kthread_blkcg+0xe0/0xe0 [ 170.089048][ C1] ret_from_fork+0x24/0x30 [ 170.093471][ C1] NMI backtrace for cpu 1 [ 170.097795][ C1] CPU: 1 PID: 8312 Comm: kworker/1:3 Not tainted 5.4.0-syzkaller #0 [ 170.105760][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 170.115816][ C1] Workqueue: rcu_gp srcu_invoke_callbacks [ 170.121513][ C1] Call Trace: [ 170.124788][ C1] [ 170.127629][ C1] dump_stack+0x1fb/0x318 [ 170.131954][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 170.138002][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 170.144140][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 170.150195][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 170.156172][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 170.162050][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 170.167151][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 170.172335][ C1] ? trace_hardirqs_off+0x74/0x80 [ 170.177363][ C1] update_process_times+0x12d/0x180 [ 170.182560][ C1] tick_sched_timer+0x263/0x420 [ 170.187410][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 170.192964][ C1] __hrtimer_run_queues+0x403/0x840 [ 170.198184][ C1] hrtimer_interrupt+0x38c/0xda0 [ 170.203128][ C1] ? debug_smp_processor_id+0x9/0x20 [ 170.208409][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 170.213942][ C1] apic_timer_interrupt+0xf/0x20 [ 170.218860][ C1] [ 170.221796][ C1] RIP: 0010:free_thread_stack+0x12e/0x590 [ 170.227503][ C1] Code: bf 00 00 00 00 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 [ 170.247556][ C1] RSP: 0018:ffffc90002117a28 EFLAGS: 00000296 ORIG_RAX: ffffffffffffff13 [ 170.255952][ C1] RAX: 0000000000000001 RBX: ffffea00024afe80 RCX: 0000000000000000 [ 170.263910][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00024afe80 [ 170.271864][ C1] RBP: ffffc90002117a60 R08: 000000000003a768 R09: fffffbfff120248a [ 170.279818][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880a9797da0 [ 170.287771][ C1] R13: dffffc0000000000 R14: 1ffff110152f2fb4 R15: ffff8880a9231a28 [ 170.295748][ C1] ? free_thread_stack+0x12e/0x590 [ 170.300870][ C1] put_task_stack+0xa3/0x130 [ 170.305444][ C1] finish_task_switch+0x3f1/0x550 [ 170.310459][ C1] __schedule+0x9a8/0xcc0 [ 170.314780][ C1] ? ___preempt_schedule+0x16/0x18 [ 170.319872][ C1] preempt_schedule+0xdb/0x120 [ 170.324618][ C1] ? local_bh_enable+0x4/0x20 [ 170.329280][ C1] ___preempt_schedule+0x16/0x18 [ 170.334208][ C1] ? mark_lock+0x107/0x1650 [ 170.338695][ C1] __local_bh_enable_ip+0x17d/0x240 [ 170.343965][ C1] local_bh_enable+0x15/0x20 [ 170.348542][ C1] srcu_invoke_callbacks+0x18c/0x320 [ 170.353835][ C1] process_one_work+0x7ef/0x10d0 [ 170.358777][ C1] worker_thread+0xc01/0x1630 [ 170.363463][ C1] kthread+0x332/0x350 [ 170.367517][ C1] ? rcu_lock_release+0x30/0x30 [ 170.372356][ C1] ? kthread_blkcg+0xe0/0xe0 [ 170.376938][ C1] ret_from_fork+0x24/0x30