[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 45.278558][ T23] audit: type=1800 audit(1575331970.093:25): pid=8154 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 45.306350][ T23] audit: type=1800 audit(1575331970.093:26): pid=8154 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 45.346178][ T23] audit: type=1800 audit(1575331970.093:27): pid=8154 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 '10.128.0.56' (ECDSA) to the list of known hosts. 2019/12/03 00:12:58 fuzzer started 2019/12/03 00:13:00 dialing manager at 10.128.0.26:38907 2019/12/03 00:13:00 syscalls: 2697 2019/12/03 00:13:00 code coverage: enabled 2019/12/03 00:13:00 comparison tracing: enabled 2019/12/03 00:13:00 extra coverage: extra coverage is not supported by the kernel 2019/12/03 00:13:00 setuid sandbox: enabled 2019/12/03 00:13:00 namespace sandbox: enabled 2019/12/03 00:13:00 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 00:13:00 fault injection: enabled 2019/12/03 00:13:00 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 00:13:00 net packet injection: enabled 2019/12/03 00:13:00 net device setup: enabled 2019/12/03 00:13:00 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 00:13:00 devlink PCI setup: PCI device 0000:00:10.0 is not available 00:13:01 executing program 0: r0 = openat$ion(0xffffffffffffff9c, &(0x7f0000000000)='/dev/ion\x00', 0x0, 0x0) ioctl$ION_IOC_HEAP_QUERY(r0, 0xc0184908, &(0x7f0000000080)={0xffffffb5, 0x0, 0xfffffffffffffffd}) 00:13:02 executing program 1: mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x0, 0x5c831, 0xffffffffffffffff, 0x0) r0 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_FREE_MR(r0, 0x114, 0x3, &(0x7f0000000380), 0x10) syzkaller login: [ 57.303930][ T8319] IPVS: ftp: loaded support on port[0] = 21 00:13:02 executing program 2: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = perf_event_open(&(0x7f000025c000)={0x1, 0x70, 0x5, 0x0, 0x0, 0x0, 0x0, 0x1, 0x74204, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x0, 0x0, 0x5}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000ffd000/0x3000)=nil, 0x3000, 0x0, 0x11, r3, 0x0) ioctl$PERF_EVENT_IOC_SET_OUTPUT(r2, 0x2405, r3) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000340)='clear_refs\x00g\xff\xca\x02\x8a\xf0\xe1ZM\xfa@\x1bS0\x11\xbe\xdc\xdc\xdd\xc1\x17~\x18\xd6\xa5\x88Cd**\xde\xae\xaf\xcf\t\xec0\x04\xe7\xf3\"\b9\xb5\x96VR+\xbb\xa0a\xbb\xc8') r5 = syz_open_procfs(0x0, &(0x7f0000000100)='loginuid\x009\xda\xd3\xc4D\xdeJ5\xf0\xfd\"=\xb6\xaa\x1e/\xddc\xc9\xf3_8\x9eFi\xe0\xafe\"\xc2%\xbb\xb6E\xae\x9e\x0fF\xc8|\xd4M\xb4\x91\x9c\x1a4\xab\x1d\x00\xbbAW\xf7\x9b#\x91.\x9b\x96Vn\xbf#a\x8d\xfd\xd31\xfc\xac\xfe\xcc\xdb\x93\x89t\xf4\x8dB\fI\xe5\xb3\x7f\x94\xbd\xb6Q\xb9\xc1\x02e\x904\xf4\x19/') sendfile(r4, r5, 0x0, 0x1) openat$vsock(0xffffffffffffff9c, &(0x7f0000000080)='/dev/vsock\x00', 0x0, 0x0) [ 57.498943][ T8319] chnl_net:caif_netlink_parms(): no params data found [ 57.571182][ T8323] IPVS: ftp: loaded support on port[0] = 21 [ 57.639770][ T8319] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.657258][ T8319] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.669200][ T8319] device bridge_slave_0 entered promiscuous mode [ 57.702074][ T8324] IPVS: ftp: loaded support on port[0] = 21 [ 57.709797][ T8319] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.723609][ T8319] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.731855][ T8319] device bridge_slave_1 entered promiscuous mode 00:13:02 executing program 3: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = dup2(r0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) syz_mount_image$xfs(&(0x7f0000000140)='xfs\x00', &(0x7f00000001c0)='./file0\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f0000000380)={[{@sysvgroups='sysvgroups'}]}) [ 57.831110][ T8319] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.888358][ T8319] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.987058][ T8323] chnl_net:caif_netlink_parms(): no params data found [ 58.010333][ T8319] team0: Port device team_slave_0 added [ 58.029407][ T8319] team0: Port device team_slave_1 added [ 58.062449][ T8328] IPVS: ftp: loaded support on port[0] = 21 [ 58.073337][ T8324] chnl_net:caif_netlink_parms(): no params data found 00:13:02 executing program 4: r0 = open(&(0x7f0000000040)='./bus\x00', 0x143042, 0x0) socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) unshare(0x20400) readv(r0, 0x0, 0x1000000) [ 58.103385][ T8323] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.115327][ T8323] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.136894][ T8323] device bridge_slave_0 entered promiscuous mode [ 58.212022][ T8319] device hsr_slave_0 entered promiscuous mode 00:13:03 executing program 5: mkdir(&(0x7f0000000400)='./file0\x00', 0x0) r0 = syz_open_procfs(0x0, &(0x7f0000000080)='mountinfo\x00|\xb82L}\xd8\xe3\\\x8d\xb5\x03\xe6\x96\xe8\xad7\x0e\xc8\xb9}KG\x91\x035t\t\xbc\xf3\x94\xa8\xa2m\x8cK\xf2\x1cw\xefOA\xf2\xf3\xa5\x80e\x9a\x83\xb6l|\xc0{\xa35a\x9a\xbf\xc7\x123\xf4\xdbc\x04\xa0\x94S\x11\x02^\xd6\xb5\x8et_\xf1\x15\xe5R\xf38@b\xe7\x0f\xb1L z\xc4Y-\xac}\xac\xd0-\x11\x1f/2\xcd/ll\a\x06+\xdef\xc0\xa9\x87R\x1d\x04[\x92\xf5#p\x8b\t\xa4kC1\xdb\f\xdc)\xcb\xb3\x944\xf6W}\v\xb0\x8d\x1f\xeb\x8c\x04\r\xaa\xe0\xeb\xf8\xf5\xc0\xd2s\xcf3\x1a\xb8\x1c\xa7\xf8\xd6\x9d0\xe7!\xc1\xc6O~\xf0\xc60\xe3\x1c\xdd\x82\x96`\xed)\xe0\xe7o\xb5E\xce\xcd\xdb\x90\xf1U \xb5NQ\"\xde>\xc3lm\x89H\x80=\xa8\xb2Q\x8f\xbe\xf9\xf3\x11fkxBe\xdeZ\xbe\x83lX\xd5\xc4\x91\xe3\xf3\x8f0N&R\x0e?Al\xc0!\xe3\x17\xc2\xa7\xf3\xb3\x93?t1\xa4\x1d\xddom\xee\xea<\xc8\x11\xb6\xc7|\xd1/V\xec\x9e\x94@\xa3\x92\b\xf4_S\xed\xf1d\xfa\xb5\xe8\x9d\xeb\xe4\xf6\xa1\xed') read(r0, &(0x7f0000000380)=""/233, 0xffbe) mount(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040)='debugfs\x00', 0x0, &(0x7f0000000380)) [ 58.327250][ T8319] device hsr_slave_1 entered promiscuous mode [ 58.386181][ T8323] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.393293][ T8323] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.403430][ T8323] device bridge_slave_1 entered promiscuous mode [ 58.451142][ T8324] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.458368][ T8324] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.467685][ T8324] device bridge_slave_0 entered promiscuous mode [ 58.478365][ T8324] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.485436][ T8324] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.494177][ T8324] device bridge_slave_1 entered promiscuous mode [ 58.502919][ T8323] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.525172][ T8332] IPVS: ftp: loaded support on port[0] = 21 [ 58.533462][ T8330] IPVS: ftp: loaded support on port[0] = 21 [ 58.564324][ T8323] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.580266][ T8319] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.659576][ T8319] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.701078][ T8319] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.749374][ T8324] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.782961][ T8319] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.819436][ T8324] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.830388][ T8323] team0: Port device team_slave_0 added [ 58.851283][ T8323] team0: Port device team_slave_1 added [ 58.884389][ T8324] team0: Port device team_slave_0 added [ 58.894682][ T8324] team0: Port device team_slave_1 added [ 58.978073][ T8323] device hsr_slave_0 entered promiscuous mode [ 59.046729][ T8323] device hsr_slave_1 entered promiscuous mode [ 59.106376][ T8323] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.167761][ T8328] chnl_net:caif_netlink_parms(): no params data found [ 59.209215][ T8324] device hsr_slave_0 entered promiscuous mode [ 59.256905][ T8324] device hsr_slave_1 entered promiscuous mode [ 59.306225][ T8324] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.413559][ T8328] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.422033][ T8328] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.431810][ T8328] device bridge_slave_0 entered promiscuous mode [ 59.442883][ T8328] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.450487][ T8328] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.458610][ T8328] device bridge_slave_1 entered promiscuous mode [ 59.465875][ T8324] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 59.519180][ T8323] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 59.619789][ T8324] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 59.681701][ T8323] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 59.741168][ T8323] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.788723][ T8328] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.800413][ T8328] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.809820][ T8324] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 59.881662][ T8330] chnl_net:caif_netlink_parms(): no params data found [ 59.891753][ T8323] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 59.953363][ T8324] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 60.019027][ T8328] team0: Port device team_slave_0 added [ 60.035149][ T8319] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.052394][ T8332] chnl_net:caif_netlink_parms(): no params data found [ 60.062411][ T8328] team0: Port device team_slave_1 added [ 60.093021][ T8330] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.100249][ T8330] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.109022][ T8330] device bridge_slave_0 entered promiscuous mode [ 60.119545][ T8330] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.127652][ T8330] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.135525][ T8330] device bridge_slave_1 entered promiscuous mode [ 60.198139][ T8328] device hsr_slave_0 entered promiscuous mode [ 60.246375][ T8328] device hsr_slave_1 entered promiscuous mode [ 60.286101][ T8328] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.310472][ T1094] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.319668][ T1094] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.329525][ T8319] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.357295][ T8330] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.371337][ T8332] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.378861][ T8332] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.386861][ T8332] device bridge_slave_0 entered promiscuous mode [ 60.397148][ T8330] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.417385][ T1094] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.426806][ T1094] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.435738][ T1094] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.443064][ T1094] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.453088][ T1094] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.462198][ T8332] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.472188][ T8332] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.480416][ T8332] device bridge_slave_1 entered promiscuous mode [ 60.514085][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.523570][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.532900][ T2709] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.540559][ T2709] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.551807][ T8330] team0: Port device team_slave_0 added [ 60.565603][ T8330] team0: Port device team_slave_1 added [ 60.595800][ T8332] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.612968][ T8332] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.624960][ T8328] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 60.670380][ T1094] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.699138][ T8328] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 60.798793][ T8330] device hsr_slave_0 entered promiscuous mode [ 60.846953][ T8330] device hsr_slave_1 entered promiscuous mode [ 60.886161][ T8330] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.903720][ T8332] team0: Port device team_slave_0 added [ 60.909820][ T8328] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 60.941110][ T8328] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 60.999782][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.008672][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.020538][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.030355][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.047348][ T8324] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.059462][ T8332] team0: Port device team_slave_1 added [ 61.080867][ T1094] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.089679][ T1094] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.108406][ T8323] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.117736][ T8330] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 61.163723][ T8324] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.199260][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.208283][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.217557][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.225340][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.233332][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.241843][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.250165][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.258860][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.269859][ T8334] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.276949][ T8334] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.285367][ T8330] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 61.339939][ T8319] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.359260][ T8323] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.418114][ T8332] device hsr_slave_0 entered promiscuous mode [ 61.466623][ T8332] device hsr_slave_1 entered promiscuous mode [ 61.506215][ T8332] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.513917][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.522025][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.531010][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.539690][ T2709] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.546778][ T2709] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.554649][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.563296][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.571253][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.579446][ T8330] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 61.638151][ T8330] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 61.715125][ T8324] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.730963][ T8324] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.751003][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.758850][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.766869][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.775372][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.784093][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.792840][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.801665][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.810239][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.819034][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.827651][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.835854][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.845721][ T8319] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.881422][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.890377][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.898429][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.907935][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.916862][ T8334] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.923903][ T8334] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.932188][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.944288][ T8328] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.982008][ T1094] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.995461][ T1094] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.003879][ T1094] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 167.025937][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 167.032809][ C0] rcu: 0-...!: (10499 ticks this GP) idle=cfe/1/0x4000000000000002 softirq=11517/11517 fqs=1 [ 167.043272][ C0] (t=10501 jiffies g=6949 q=41) [ 167.048406][ C0] rcu: rcu_preempt kthread starved for 10500 jiffies! g6949 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 167.059488][ C0] rcu: RCU grace-period kthread stack dump: [ 167.065363][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 167.073251][ C0] Call Trace: [ 167.076541][ C0] __schedule+0x9a0/0xcc0 [ 167.080867][ C0] schedule+0x181/0x210 [ 167.085020][ C0] schedule_timeout+0x14f/0x240 [ 167.089860][ C0] ? run_local_timers+0x120/0x120 [ 167.094967][ C0] rcu_gp_kthread+0xed8/0x1770 [ 167.099726][ C0] kthread+0x332/0x350 [ 167.103780][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 167.108876][ C0] ? kthread_blkcg+0xe0/0xe0 [ 167.113456][ C0] ret_from_fork+0x24/0x30 [ 167.117874][ C0] NMI backtrace for cpu 0 [ 167.122188][ C0] CPU: 0 PID: 1094 Comm: kworker/0:2 Not tainted 5.4.0-syzkaller #0 [ 167.130248][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.140501][ C0] Workqueue: events linkwatch_event [ 167.145683][ C0] Call Trace: [ 167.148967][ C0] [ 167.151821][ C0] dump_stack+0x1fb/0x318 [ 167.156142][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 167.160990][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 167.167146][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 167.173200][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 167.179308][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 167.185207][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 167.190319][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 167.195513][ C0] ? trace_hardirqs_off+0x74/0x80 [ 167.200527][ C0] update_process_times+0x12d/0x180 [ 167.205716][ C0] tick_sched_timer+0x263/0x420 [ 167.210556][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 167.216087][ C0] __hrtimer_run_queues+0x403/0x840 [ 167.221310][ C0] hrtimer_interrupt+0x38c/0xda0 [ 167.226252][ C0] ? debug_smp_processor_id+0x9/0x20 [ 167.231548][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 167.237081][ C0] apic_timer_interrupt+0xf/0x20 [ 167.242004][ C0] [ 167.244930][ C0] RIP: 0010:free_thread_stack+0x151/0x590 [ 167.250644][ C0] Code: 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 c1 e8 03 42 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 [ 167.270330][ C0] RSP: 0018:ffffc90003877700 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 167.279160][ C0] RAX: 1ffff11014078001 RBX: ffff8880a03c0008 RCX: 0000000000000000 [ 167.287211][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002645d80 [ 167.295255][ C0] RBP: ffffc90003877738 R08: 000000000003a768 R09: fffffbfff120248a [ 167.303214][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880a03c00a0 [ 167.311177][ C0] R13: dffffc0000000000 R14: 1ffff11014078014 R15: ffff888092f3d768 [ 167.319171][ C0] put_task_stack+0xa3/0x130 [ 167.323749][ C0] finish_task_switch+0x3f1/0x550 [ 167.328763][ C0] __schedule+0x9a8/0xcc0 [ 167.333122][ C0] ? ___preempt_schedule+0x16/0x18 [ 167.338328][ C0] preempt_schedule+0xdb/0x120 [ 167.343102][ C0] ___preempt_schedule+0x16/0x18 [ 167.348043][ C0] ? vprintk_emit+0x2fe/0x3a0 [ 167.352799][ C0] ? vprintk_emit+0x368/0x3a0 [ 167.357466][ C0] vprintk_emit+0x36d/0x3a0 [ 167.361962][ C0] vprintk_default+0x28/0x30 [ 167.366558][ C0] vprintk_func+0x158/0x170 [ 167.371049][ C0] printk+0x62/0x8d [ 167.374845][ C0] ? addrconf_notify+0xd37/0x3c90 [ 167.379901][ C0] ? addrconf_notify+0x779/0x3c90 [ 167.384911][ C0] addrconf_notify+0x2c8d/0x3c90 [ 167.389840][ C0] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 167.395116][ C0] ? __local_bh_enable_ip+0x13a/0x240 [ 167.400477][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 167.406010][ C0] ? trace_hardirqs_on+0x74/0x80 [ 167.410933][ C0] ? __local_bh_enable_ip+0x13a/0x240 [ 167.416288][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 167.421958][ C0] ? tls_dev_event+0x619/0xc00 [ 167.426724][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 167.432277][ C0] ? ip6mr_device_event+0x1ee/0x210 [ 167.437837][ C0] raw_notifier_call_chain+0xec/0x190 [ 167.443207][ C0] netdev_state_change+0x147/0x1f0 [ 167.448334][ C0] linkwatch_do_dev+0x10e/0x160 [ 167.453439][ C0] __linkwatch_run_queue+0x446/0x730 [ 167.458719][ C0] linkwatch_event+0x4c/0x60 [ 167.463294][ C0] process_one_work+0x7ef/0x10d0 [ 167.468232][ C0] worker_thread+0xc01/0x1630 [ 167.472917][ C0] kthread+0x332/0x350 [ 167.476977][ C0] ? rcu_lock_release+0x30/0x30 [ 167.481816][ C0] ? kthread_blkcg+0xe0/0xe0 [ 167.486391][ C0] ret_from_fork+0x24/0x30