[ 42.347902][ T25] audit: type=1800 audit(1575342268.414:25): pid=8010 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 42.379704][ T25] audit: type=1800 audit(1575342268.414:26): pid=8010 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.415219][ T25] audit: type=1800 audit(1575342268.414:27): pid=8010 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 42.458481][ T25] audit: type=1800 audit(1575342268.414:28): pid=8010 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 '10.128.0.234' (ECDSA) to the list of known hosts. 2019/12/03 03:04:38 fuzzer started 2019/12/03 03:04:40 dialing manager at 10.128.0.26:38907 2019/12/03 03:04:40 syscalls: 2697 2019/12/03 03:04:40 code coverage: enabled 2019/12/03 03:04:40 comparison tracing: enabled 2019/12/03 03:04:40 extra coverage: extra coverage is not supported by the kernel 2019/12/03 03:04:40 setuid sandbox: enabled 2019/12/03 03:04:40 namespace sandbox: enabled 2019/12/03 03:04:40 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 03:04:40 fault injection: enabled 2019/12/03 03:04:40 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 03:04:40 net packet injection: enabled 2019/12/03 03:04:40 net device setup: enabled 2019/12/03 03:04:40 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 03:04:40 devlink PCI setup: PCI device 0000:00:10.0 is not available 03:04:41 executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=@newlink={0x44, 0x10, 0x501, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x24, 0x12, @bond={{0xc, 0x1, 'bond\x00'}, {0x14, 0x2, [@IFLA_BOND_ACTIVE_SLAVE={0x8}, @IFLA_BOND_MODE={0x8, 0x1, 0x5}]}}}]}, 0x44}}, 0x0) 03:04:41 executing program 1: r0 = perf_event_open(&(0x7f000025c000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000ffd000/0x3000)=nil, 0x3000, 0x0, 0x11, r1, 0x0) ioctl$PERF_EVENT_IOC_SET_OUTPUT(r0, 0x2405, r1) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x1000004, 0x8031, 0xffffffffffffffff, 0x0) syzkaller login: [ 55.574279][ T8174] IPVS: ftp: loaded support on port[0] = 21 [ 55.595882][ T8176] IPVS: ftp: loaded support on port[0] = 21 03:04:41 executing program 2: r0 = creat(&(0x7f0000000000)='./bus\x00', 0x0) ioctl$FS_IOC_GETFSMAP(r0, 0xc0c0583b, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, [], [{0x0, 0x0, 0xfffffffffffffffd}]}) [ 55.766435][ T8176] chnl_net:caif_netlink_parms(): no params data found [ 55.872896][ T8176] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.880663][ T8176] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.888571][ T8176] device bridge_slave_0 entered promiscuous mode [ 55.898118][ T8176] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.905623][ T8176] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.913625][ T8176] device bridge_slave_1 entered promiscuous mode [ 55.921660][ T8181] IPVS: ftp: loaded support on port[0] = 21 [ 55.936889][ T8174] chnl_net:caif_netlink_parms(): no params data found [ 55.976253][ T8176] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.013875][ T8176] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 03:04:42 executing program 3: pipe(&(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = socket$inet_udp(0x2, 0x2, 0x0) close(r2) openat$rdma_cm(0xffffffffffffff9c, &(0x7f00000001c0)='/dev/infiniband/rdma_cm\x00', 0x2, 0x0) write$binfmt_misc(r1, &(0x7f0000000140)=ANY=[], 0x4240a2a0) splice(r0, 0x0, r2, 0x0, 0x4ffe0, 0x0) [ 56.044549][ T8174] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.053123][ T8174] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.064160][ T8174] device bridge_slave_0 entered promiscuous mode [ 56.093222][ T8176] team0: Port device team_slave_0 added [ 56.120257][ T8174] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.127338][ T8174] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.152360][ T8174] device bridge_slave_1 entered promiscuous mode [ 56.165291][ T8176] team0: Port device team_slave_1 added [ 56.246811][ T8174] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link 03:04:42 executing program 4: r0 = add_key$user(&(0x7f0000000080)='user\x00', &(0x7f0000000040)={'syz'}, &(0x7f0000000140)="5311778945effd9100036800000000cf", 0x66, 0xfffffffffffffffe) ioctl$CAPI_GET_MANUFACTURER(0xffffffffffffffff, 0xc0044306, &(0x7f0000000180)=0x80) r1 = add_key$user(&(0x7f00000001c0)='user\x00', &(0x7f0000000440)={'syz'}, &(0x7f00000000c0), 0xc6, 0xfffffffffffffffd) keyctl$dh_compute(0x17, &(0x7f0000000200)={r1, r1, r0}, &(0x7f00000000c0)=""/83, 0x53, 0x0) [ 56.352007][ T8176] device hsr_slave_0 entered promiscuous mode [ 56.409555][ T8176] device hsr_slave_1 entered promiscuous mode [ 56.450803][ T8174] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.486551][ T8185] IPVS: ftp: loaded support on port[0] = 21 03:04:42 executing program 5: r0 = creat(&(0x7f0000000040)='./file0\x00', 0xb66d8081b1fc8e64) close(r0) clone(0x2000100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) execve(&(0x7f0000000180)='./file0\x00', 0x0, 0x0) [ 56.501181][ T8181] chnl_net:caif_netlink_parms(): no params data found [ 56.510371][ T8187] IPVS: ftp: loaded support on port[0] = 21 [ 56.520107][ T8174] team0: Port device team_slave_0 added [ 56.527151][ T8174] team0: Port device team_slave_1 added [ 56.642370][ T8174] device hsr_slave_0 entered promiscuous mode [ 56.699527][ T8174] device hsr_slave_1 entered promiscuous mode [ 56.749467][ T8174] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.786963][ T8189] IPVS: ftp: loaded support on port[0] = 21 [ 56.804818][ T8176] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 56.887437][ T8176] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 56.930627][ T8181] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.937694][ T8181] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.945595][ T8181] device bridge_slave_0 entered promiscuous mode [ 56.956204][ T8181] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.963322][ T8181] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.971570][ T8181] device bridge_slave_1 entered promiscuous mode [ 56.992284][ T8176] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.064452][ T8176] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 57.164713][ T8181] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.194663][ T8174] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.262369][ T8181] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.294213][ T8174] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.352449][ T8174] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.434304][ T8174] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.509931][ T8187] chnl_net:caif_netlink_parms(): no params data found [ 57.523085][ T8181] team0: Port device team_slave_0 added [ 57.531568][ T8181] team0: Port device team_slave_1 added [ 57.612712][ T8181] device hsr_slave_0 entered promiscuous mode [ 57.649997][ T8181] device hsr_slave_1 entered promiscuous mode [ 57.709323][ T8181] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.751908][ T8185] chnl_net:caif_netlink_parms(): no params data found [ 57.813130][ T8181] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 57.856204][ T8181] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 57.923113][ T8181] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 58.004816][ T8187] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.012003][ T8187] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.020441][ T8187] device bridge_slave_0 entered promiscuous mode [ 58.028174][ T8181] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 58.081451][ T8176] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.098004][ T8185] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.106073][ T8185] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.114066][ T8185] device bridge_slave_0 entered promiscuous mode [ 58.121617][ T8189] chnl_net:caif_netlink_parms(): no params data found [ 58.131001][ T8187] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.138047][ T8187] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.145724][ T8187] device bridge_slave_1 entered promiscuous mode [ 58.169883][ T8185] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.176981][ T8185] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.185989][ T8185] device bridge_slave_1 entered promiscuous mode [ 58.206914][ T8185] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.219814][ T8187] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.235801][ T3017] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.244084][ T3017] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.258057][ T8174] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.265977][ T8185] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.285129][ T8187] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.297478][ T8176] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.318542][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.328525][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.337870][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.345067][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.354077][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.373080][ T8185] team0: Port device team_slave_0 added [ 58.387659][ T8187] team0: Port device team_slave_0 added [ 58.405973][ T3017] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.414835][ T3017] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.423317][ T3017] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.430379][ T3017] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.452792][ T8185] team0: Port device team_slave_1 added [ 58.471318][ T8174] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.479511][ T8187] team0: Port device team_slave_1 added [ 58.485785][ T8189] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.493093][ T8189] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.501878][ T8189] device bridge_slave_0 entered promiscuous mode [ 58.522775][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.530423][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.537968][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.546858][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.555462][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.564340][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.591807][ T8185] device hsr_slave_0 entered promiscuous mode [ 58.639667][ T8185] device hsr_slave_1 entered promiscuous mode [ 58.679382][ T8185] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.706008][ T8189] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.713633][ T8189] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.722642][ T8189] device bridge_slave_1 entered promiscuous mode [ 58.737548][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.745839][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.754792][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.763512][ T8190] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.770608][ T8190] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.778347][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.787672][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.796640][ T8190] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.842005][ T8187] device hsr_slave_0 entered promiscuous mode [ 58.899721][ T8187] device hsr_slave_1 entered promiscuous mode [ 58.939346][ T8187] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.974944][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.986059][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.996023][ T8189] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.007312][ T8189] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.025501][ T8185] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.078915][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.087312][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.095622][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.104289][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.113206][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.120320][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.127791][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.142878][ T8181] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.162197][ T8176] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.170193][ T8185] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.231503][ T8185] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.284161][ T8185] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.343110][ T8189] team0: Port device team_slave_0 added [ 59.349788][ T8187] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 59.400961][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.408644][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.416811][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.425294][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.433212][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.442305][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.450927][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.459382][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.467881][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.477819][ T8181] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.487478][ T8189] team0: Port device team_slave_1 added [ 59.494077][ T8187] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 59.554538][ T8176] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.569785][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.577446][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.585897][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.600608][ T8187] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 59.646691][ T8174] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.658112][ T8174] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.670338][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.678866][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.687588][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.694789][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.702538][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.710871][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.718947][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.727488][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.735841][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.743015][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.750746][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.763650][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.777625][ T8187] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 59.882120][ T8189] device hsr_slave_0 entered promiscuous mode [ 59.939539][ T8189] device hsr_slave_1 entered promiscuous mode [ 59.979325][ T8189] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.002373][ T8185] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.021845][ T3017] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 165.149176][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 165.155933][ C1] rcu: 1-...!: (1 GPs behind) idle=57a/1/0x4000000000000002 softirq=11495/11505 fqs=19 [ 165.165871][ C1] (t=10500 jiffies g=6213 q=60) [ 165.170800][ C1] rcu: rcu_preempt kthread starved for 10457 jiffies! g6213 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 165.181893][ C1] rcu: RCU grace-period kthread stack dump: [ 165.187780][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 165.195694][ C1] Call Trace: [ 165.198988][ C1] __schedule+0x9a0/0xcc0 [ 165.203320][ C1] schedule+0x181/0x210 [ 165.207468][ C1] schedule_timeout+0x14f/0x240 [ 165.212316][ C1] ? run_local_timers+0x120/0x120 [ 165.217338][ C1] rcu_gp_kthread+0xed8/0x1770 [ 165.222104][ C1] kthread+0x332/0x350 [ 165.226161][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 165.231278][ C1] ? kthread_blkcg+0xe0/0xe0 [ 165.235854][ C1] ret_from_fork+0x24/0x30 [ 165.240274][ C1] NMI backtrace for cpu 1 [ 165.244590][ C1] CPU: 1 PID: 8181 Comm: syz-executor.2 Not tainted 5.4.0-syzkaller #0 [ 165.252805][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.262863][ C1] Call Trace: [ 165.266141][ C1] [ 165.269016][ C1] dump_stack+0x1fb/0x318 [ 165.273337][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 165.278176][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 165.284313][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 165.290364][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 165.296332][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 165.302209][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 165.307312][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 165.312509][ C1] ? trace_hardirqs_off+0x74/0x80 [ 165.317523][ C1] update_process_times+0x12d/0x180 [ 165.322708][ C1] tick_sched_timer+0x263/0x420 [ 165.327556][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 165.333090][ C1] __hrtimer_run_queues+0x403/0x840 [ 165.338290][ C1] hrtimer_interrupt+0x38c/0xda0 [ 165.343232][ C1] ? debug_smp_processor_id+0x9/0x20 [ 165.348508][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 165.354056][ C1] apic_timer_interrupt+0xf/0x20 [ 165.359116][ C1] [ 165.362060][ C1] RIP: 0010:free_thread_stack+0x18b/0x590 [ 165.367771][ C1] Code: ff ff e8 28 04 00 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 09 a4 69 00 49 8b 1c 24 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 eb a3 69 00 48 8b 1b e9 82 ff ff ff e8 de 2c 2e [ 165.387478][ C1] RSP: 0018:ffffc90002056e28 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 165.395880][ C1] RAX: 1ffff11012744881 RBX: ffff888093a24408 RCX: ffff888095024500 [ 165.403925][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00024aaa80 [ 165.411883][ C1] RBP: ffffc90002056e60 R08: 000000000003a768 R09: ffffed10151eaec7 [ 165.419840][ C1] R10: ffffed10151eaec7 R11: 0000000000000000 R12: ffff888093a244a0 [ 165.427798][ C1] R13: dffffc0000000000 R14: 1ffff11012744894 R15: ffff8880a8f57628 [ 165.435884][ C1] ? free_thread_stack+0x168/0x590 [ 165.440984][ C1] put_task_stack+0xa3/0x130 [ 165.445561][ C1] finish_task_switch+0x3f1/0x550 [ 165.450577][ C1] __schedule+0x9a8/0xcc0 [ 165.454908][ C1] preempt_schedule_irq+0xc1/0x140 [ 165.460012][ C1] retint_kernel+0x1b/0x2b [ 165.464416][ C1] RIP: 0010:kfree+0x1a3/0x200 [ 165.469077][ C1] Code: 48 83 3d 67 19 59 07 00 74 68 4c 89 f7 57 9d 0f 1f 44 00 00 eb 19 e8 ec b7 ca ff 48 83 3d 4c 19 59 07 00 74 51 4c 89 f7 57 9d <0f> 1f 44 00 00 5b 41 5c 41 5e 41 5f 5d c3 48 ff c9 48 89 c8 e9 c8 [ 165.488668][ C1] RSP: 0018:ffffc90002057070 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 165.497079][ C1] RAX: ffff888095024d94 RBX: ffff8880aa800a80 RCX: ffffffff815c0597 [ 165.505054][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000286 [ 165.513019][ C1] RBP: ffffc90002057090 R08: ffff888095024d58 R09: fffffbfff13c8524 [ 165.520985][ C1] R10: fffffbfff13c8524 R11: 0000000000000000 R12: ffff88809689d800 [ 165.528961][ C1] R13: 0000000000000000 R14: 0000000000000286 R15: ffffffff86380c36 [ 165.536930][ C1] ? skb_release_data+0x726/0x8c0 [ 165.541949][ C1] ? mark_lock+0x107/0x1650 [ 165.546450][ C1] skb_release_data+0x726/0x8c0 [ 165.551299][ C1] __kfree_skb+0x59/0x1c0 [ 165.555616][ C1] consume_skb+0x72/0x110 [ 165.559940][ C1] netlink_broadcast_filtered+0x1056/0x1170 [ 165.565845][ C1] ? fib_nexthop_info+0x72c/0x970 [ 165.570878][ C1] ? fib_dump_info+0x15ab/0x2240 [ 165.575814][ C1] nlmsg_notify+0xfc/0x1f0 [ 165.580238][ C1] rtnl_notify+0x9b/0xc0 [ 165.584478][ C1] rtmsg_fib+0x631/0x9c0 [ 165.588723][ C1] fib_table_insert+0x1902/0x1f10 [ 165.593758][ C1] fib_magic+0x438/0x5e0 [ 165.598002][ C1] fib_add_ifaddr+0x150/0x590 [ 165.602673][ C1] fib_inetaddr_event+0x15d/0x320 [ 165.607689][ C1] __blocking_notifier_call_chain+0x191/0x260 [ 165.613752][ C1] blocking_notifier_call_chain+0x2d/0x40 [ 165.619802][ C1] __inet_insert_ifa+0x96b/0xb60 [ 165.624739][ C1] inet_rtm_newaddr+0x104b/0x1980 [ 165.629763][ C1] ? inet_gifconf+0x420/0x420 [ 165.634427][ C1] rtnetlink_rcv_msg+0x889/0xd40 [ 165.639365][ C1] ? rcu_lock_release+0x9/0x30 [ 165.644117][ C1] ? rcu_lock_release+0x9/0x30 [ 165.648873][ C1] ? rcu_lock_release+0x9/0x30 [ 165.653652][ C1] netlink_rcv_skb+0x19e/0x3d0 [ 165.658399][ C1] ? rtnetlink_bind+0x80/0x80 [ 165.663069][ C1] rtnetlink_rcv+0x1c/0x20 [ 165.667473][ C1] netlink_unicast+0x767/0x920 [ 165.672234][ C1] netlink_sendmsg+0xa21/0xd40 [ 165.676989][ C1] ? netlink_getsockopt+0x9f0/0x9f0 [ 165.682174][ C1] __sys_sendto+0x442/0x5e0 [ 165.686676][ C1] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 165.692730][ C1] ? prepare_exit_to_usermode+0x221/0x5b0 [ 165.698463][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 165.703940][ C1] __x64_sys_sendto+0xe5/0x100 [ 165.708699][ C1] do_syscall_64+0xf7/0x1c0 [ 165.713195][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.719077][ C1] RIP: 0033:0x414373 [ 165.722965][ 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 [ 165.742560][ C1] RSP: 002b:00007ffea10b81d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 165.750959][ C1] RAX: ffffffffffffffda RBX: 0000000000a72200 RCX: 0000000000414373 [ 165.758914][ C1] RDX: 0000000000000028 RSI: 0000000000a72250 RDI: 0000000000000003 [ 165.766891][ C1] RBP: 0000000000000000 R08: 00007ffea10b81e0 R09: 000000000000000c [ 165.774850][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 165.782808][ C1] R13: 0000000000000000 R14: 0000000000a72250 R15: 0000000000000003