[ 43.746234][ T25] audit: type=1800 audit(1575330369.462:25): pid=8089 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 43.767018][ T25] audit: type=1800 audit(1575330369.462:26): pid=8089 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 43.787260][ T25] audit: type=1800 audit(1575330369.472:27): pid=8089 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 43.818118][ T25] audit: type=1800 audit(1575330369.472:28): pid=8089 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 '10.128.0.102' (ECDSA) to the list of known hosts. 2019/12/02 23:46:19 fuzzer started 2019/12/02 23:46:20 dialing manager at 10.128.0.26:38907 2019/12/02 23:46:20 syscalls: 2697 2019/12/02 23:46:20 code coverage: enabled 2019/12/02 23:46:20 comparison tracing: enabled 2019/12/02 23:46:20 extra coverage: extra coverage is not supported by the kernel 2019/12/02 23:46:20 setuid sandbox: enabled 2019/12/02 23:46:20 namespace sandbox: enabled 2019/12/02 23:46:20 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/02 23:46:20 fault injection: enabled 2019/12/02 23:46:20 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/02 23:46:20 net packet injection: enabled 2019/12/02 23:46:20 net device setup: enabled 2019/12/02 23:46:20 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/02 23:46:20 devlink PCI setup: PCI device 0000:00:10.0 is not available 23:46:22 executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) getsockopt$bt_BT_FLUSHABLE(r0, 0x112, 0x8, 0x0, &(0x7f0000000080)) 23:46:22 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) getgid() fchown(0xffffffffffffffff, 0x0, 0x0) getgroups(0xfffffffffffffe71, 0x0) ioctl$TUNSETGROUP(0xffffffffffffffff, 0x400454ce, 0x0) waitid(0x0, 0x0, 0x0, 0x0, 0x0) creat(0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_open_procfs(0x0, 0x0) socket$inet_udplite(0x2, 0x2, 0x88) openat$ptmx(0xffffffffffffff9c, 0x0, 0x0, 0x0) ioctl$TIOCSETD(0xffffffffffffffff, 0x5423, 0x0) ioctl$EXT4_IOC_MIGRATE(0xffffffffffffffff, 0x6609) socket$alg(0x26, 0x5, 0x0) bind$alg(0xffffffffffffffff, 0x0, 0x0) accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0) sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) syz_genetlink_get_family_id$tipc2(0x0) sendmsg$TIPC_NL_BEARER_ADD(0xffffffffffffffff, 0x0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) bind$inet6(r0, &(0x7f0000000240)={0xa, 0x4e20, 0x0, @loopback}, 0x1c) setsockopt$IP_VS_SO_SET_EDIT(0xffffffffffffffff, 0x0, 0x483, 0x0, 0x0) sendto$inet6(r0, 0x0, 0xfd66, 0xfffffefffffffffe, &(0x7f0000000100)={0xa, 0x4e20, 0x0, @loopback}, 0x1c) sendmmsg$inet6(r0, &(0x7f0000001940)=[{{0x0, 0x0, &(0x7f0000001880)=[{0x0}, {&(0x7f0000001780)="e0c88c", 0x3}], 0x2}}], 0x1, 0x4008000) close(r0) syzkaller login: [ 56.498514][ T8255] IPVS: ftp: loaded support on port[0] = 21 23:46:22 executing program 2: pipe(&(0x7f0000000140)={0xffffffffffffffff}) fcntl$setpipe(r0, 0x407, 0xfa58) [ 56.647805][ T8258] IPVS: ftp: loaded support on port[0] = 21 [ 56.672569][ T8255] chnl_net:caif_netlink_parms(): no params data found [ 56.789406][ T8255] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.800837][ T8255] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.808815][ T8255] device bridge_slave_0 entered promiscuous mode [ 56.833347][ T8260] IPVS: ftp: loaded support on port[0] = 21 [ 56.843145][ T8255] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.850379][ T8255] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.860551][ T8255] device bridge_slave_1 entered promiscuous mode 23:46:22 executing program 3: r0 = socket$can_raw(0x1d, 0x3, 0x1) setsockopt(r0, 0x65, 0x5, 0x0, 0x4) [ 56.942083][ T8255] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.965138][ T8258] chnl_net:caif_netlink_parms(): no params data found [ 56.998491][ T8255] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.085640][ T8255] team0: Port device team_slave_0 added [ 57.102794][ T8255] team0: Port device team_slave_1 added [ 57.133979][ T8258] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.152512][ T8258] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.160334][ T8258] device bridge_slave_0 entered promiscuous mode [ 57.168726][ T8258] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.177618][ T8258] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.186298][ T8258] device bridge_slave_1 entered promiscuous mode 23:46:22 executing program 4: r0 = open(&(0x7f0000000040)='./bus\x00', 0x141042, 0x0) mmap(&(0x7f0000008000/0x600000)=nil, 0x600000, 0x800002, 0x11, r0, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = creat(&(0x7f0000000100)='./bus\x00', 0x0) fallocate(r3, 0x0, 0x0, 0x1000f4) write(r2, &(0x7f00000001c0), 0xfffffef3) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 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) vmsplice(r1, &(0x7f0000000000)=[{&(0x7f0000000500), 0x3528a9c0}], 0x1, 0x0) [ 57.236252][ T8260] chnl_net:caif_netlink_parms(): no params data found [ 57.249398][ T8264] IPVS: ftp: loaded support on port[0] = 21 [ 57.283378][ T8255] device hsr_slave_0 entered promiscuous mode [ 57.321119][ T8255] device hsr_slave_1 entered promiscuous mode 23:46:23 executing program 5: r0 = memfd_create(&(0x7f0000000440)='\x00', 0x5) ioctl$FS_IOC_RESVSP(r0, 0x40305828, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1000}) [ 57.437690][ T8258] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.505942][ T8267] IPVS: ftp: loaded support on port[0] = 21 [ 57.516659][ T8258] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.559299][ T8260] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.569730][ T8260] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.578155][ T8260] device bridge_slave_0 entered promiscuous mode [ 57.613771][ T8258] team0: Port device team_slave_0 added [ 57.619647][ T8260] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.627654][ T8260] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.635447][ T8260] device bridge_slave_1 entered promiscuous mode [ 57.658135][ T8260] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.667496][ T8255] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.734094][ T8258] team0: Port device team_slave_1 added [ 57.752312][ T8269] IPVS: ftp: loaded support on port[0] = 21 [ 57.758477][ T8260] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.775398][ T8255] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.882433][ T8258] device hsr_slave_0 entered promiscuous mode [ 57.921033][ T8258] device hsr_slave_1 entered promiscuous mode [ 57.971214][ T8258] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.989088][ T8255] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.043391][ T8260] team0: Port device team_slave_0 added [ 58.051947][ T8260] team0: Port device team_slave_1 added [ 58.057683][ T8255] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.182690][ T8260] device hsr_slave_0 entered promiscuous mode [ 58.221215][ T8260] device hsr_slave_1 entered promiscuous mode [ 58.260971][ T8260] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.268779][ T8258] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 58.345370][ T8258] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 58.395770][ T8258] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 58.470185][ T8258] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 58.534392][ T8267] chnl_net:caif_netlink_parms(): no params data found [ 58.564723][ T8264] chnl_net:caif_netlink_parms(): no params data found [ 58.617159][ T8267] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.625557][ T8267] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.634530][ T8267] device bridge_slave_0 entered promiscuous mode [ 58.644161][ T8267] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.658278][ T8267] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.666614][ T8267] device bridge_slave_1 entered promiscuous mode [ 58.674364][ T8260] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 58.769536][ T8260] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 58.825959][ T8260] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 58.896809][ T8260] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 58.959751][ T8267] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.979175][ T8264] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.987889][ T8264] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.996075][ T8264] device bridge_slave_0 entered promiscuous mode [ 59.004566][ T8264] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.011752][ T8264] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.019562][ T8264] device bridge_slave_1 entered promiscuous mode [ 59.028747][ T8267] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.063574][ T8267] team0: Port device team_slave_0 added [ 59.072662][ T8267] team0: Port device team_slave_1 added [ 59.094445][ T8269] chnl_net:caif_netlink_parms(): no params data found [ 59.119711][ T8264] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.137183][ T8255] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.171606][ T8264] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.213215][ T8267] device hsr_slave_0 entered promiscuous mode [ 59.251265][ T8267] device hsr_slave_1 entered promiscuous mode [ 59.301049][ T8267] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.311168][ T8269] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.318263][ T8269] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.327721][ T8269] device bridge_slave_0 entered promiscuous mode [ 59.335795][ T8269] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.342980][ T8269] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.350934][ T8269] device bridge_slave_1 entered promiscuous mode [ 59.377872][ T8264] team0: Port device team_slave_0 added [ 59.402847][ T8255] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.413201][ T8264] team0: Port device team_slave_1 added [ 59.483613][ T8264] device hsr_slave_0 entered promiscuous mode [ 59.521377][ T8264] device hsr_slave_1 entered promiscuous mode [ 59.561032][ T8264] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.573645][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.582735][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.616676][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.626647][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.636087][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.643451][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.654526][ T8269] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.703617][ T3699] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.711769][ T3699] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.720325][ T3699] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.729369][ T3699] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.736474][ T3699] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.745222][ T3699] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.759512][ T8258] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.769483][ T8269] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.789006][ T8264] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.833666][ T8264] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.876145][ T8264] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.927283][ T8264] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.964333][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.973295][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.982076][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.990668][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.999923][ T8267] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 60.042735][ T8267] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 60.093451][ T8267] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 60.147793][ T8267] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 60.219868][ T8269] team0: Port device team_slave_0 added [ 60.229735][ T8269] team0: Port device team_slave_1 added [ 60.237594][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.247363][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.256249][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.264990][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.277559][ T8255] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.290487][ T8255] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.307022][ T8258] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.324154][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.333986][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.342644][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.350431][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.388415][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.398556][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.410476][ T8270] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.417664][ T8270] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.434474][ T8260] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.483211][ T8269] device hsr_slave_0 entered promiscuous mode [ 60.521780][ T8269] device hsr_slave_1 entered promiscuous mode [ 60.561788][ T8269] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.578433][ T8255] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.587506][ T3699] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.597570][ T3699] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.605824][ T3699] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.613813][ T3699] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.623805][ T3699] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.632399][ T3699] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.639598][ T3699] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.647415][ T3699] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.684108][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.697645][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.708301][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.733072][ T8260] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.740016][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.749892][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.762325][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.775144][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.784117][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.792757][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.823126][ T8258] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.834910][ T8258] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.848953][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.858230][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.867265][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.909103][ T8264] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.933401][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.945989][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.962448][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.969656][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 165.990699][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 165.997922][ C1] rcu: 1-...!: (10499 ticks this GP) idle=f26/1/0x4000000000000002 softirq=10910/10910 fqs=0 [ 166.009235][ C1] (t=10501 jiffies g=6633 q=74) [ 166.014160][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g6633 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 166.025503][ C1] rcu: RCU grace-period kthread stack dump: [ 166.031378][ C1] rcu_preempt I29032 10 2 0x80004000 [ 166.037704][ C1] Call Trace: [ 166.041094][ C1] __schedule+0x9a0/0xcc0 [ 166.045700][ C1] schedule+0x181/0x210 [ 166.049846][ C1] schedule_timeout+0x14f/0x240 [ 166.054707][ C1] ? run_local_timers+0x120/0x120 [ 166.059895][ C1] rcu_gp_kthread+0xed8/0x1770 [ 166.068068][ C1] kthread+0x332/0x350 [ 166.072211][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 166.077310][ C1] ? kthread_blkcg+0xe0/0xe0 [ 166.081889][ C1] ret_from_fork+0x24/0x30 [ 166.086333][ C1] NMI backtrace for cpu 1 [ 166.090663][ C1] CPU: 1 PID: 8258 Comm: syz-executor.1 Not tainted 5.4.0-syzkaller #0 [ 166.098879][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 166.108932][ C1] Call Trace: [ 166.112983][ C1] [ 166.116178][ C1] dump_stack+0x1fb/0x318 [ 166.120500][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 166.125421][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 166.131562][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 166.137614][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 166.145270][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 166.151320][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 166.156424][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 166.161628][ C1] ? trace_hardirqs_off+0x74/0x80 [ 166.166643][ C1] update_process_times+0x12d/0x180 [ 166.171841][ C1] tick_sched_timer+0x263/0x420 [ 166.177038][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 166.182659][ C1] __hrtimer_run_queues+0x403/0x840 [ 166.187860][ C1] hrtimer_interrupt+0x38c/0xda0 [ 166.192798][ C1] ? debug_smp_processor_id+0x9/0x20 [ 166.198073][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 166.203609][ C1] apic_timer_interrupt+0xf/0x20 [ 166.208527][ C1] [ 166.212930][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 [ 166.219069][ C1] Code: 64 02 3b 00 5b 5d c3 cc 48 8b 04 24 65 48 8b 0c 25 c0 1d 02 00 65 8b 15 b8 81 8b 7e f7 c2 00 01 1f 00 75 2c 8b 91 80 13 00 00 <83> fa 02 75 21 48 8b 91 88 13 00 00 48 8b 32 48 8d 7e 01 8b 89 84 [ 166.238764][ C1] RSP: 0018:ffffc90001ef7ae0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 166.250486][ C1] RAX: ffffffff81487433 RBX: 0000000000000000 RCX: ffff88809a2ae140 [ 166.258707][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00027d2940 [ 166.267013][ C1] RBP: ffffc90001ef7b08 R08: dffffc0000000000 R09: fffffbfff120248a [ 166.275168][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: dffffc0000000000 [ 166.283260][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880a86e35e8 [ 166.291230][ C1] ? mod_memcg_page_state+0x123/0x190 [ 166.296593][ C1] ? mod_memcg_page_state+0x123/0x190 [ 166.301952][ C1] free_thread_stack+0x168/0x590 [ 166.306903][ C1] put_task_stack+0xa3/0x130 [ 166.311485][ C1] finish_task_switch+0x3f1/0x550 [ 166.316504][ C1] __schedule+0x9a8/0xcc0 [ 166.320830][ C1] preempt_schedule_irq+0xc1/0x140 [ 166.325928][ C1] retint_kernel+0x1b/0x2b [ 166.330332][ C1] RIP: 0010:__fsnotify_parent+0x0/0x270 [ 166.335878][ C1] Code: f7 e8 34 d2 e4 ff e9 75 fd ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c a4 fd ff ff e8 3a d2 e4 ff e9 9a fd ff ff 0f 1f 44 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 50 41 89 d4 49 89 [ 166.360087][ C1] RSP: 0018:ffffc90001ef7d68 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 166.368487][ C1] RAX: 1ffff110146efca3 RBX: ffff8880a377e518 RCX: 0000000000000000 [ 166.376447][ C1] RDX: 0000000000000008 RSI: ffff888092607ce0 RDI: ffff8880a377e510 [ 166.384852][ C1] RBP: ffffc90001ef7de8 R08: ffffffff81bc6194 R09: ffffed1013455d24 [ 166.392813][ C1] R10: ffffed1013455d24 R11: 0000000000000000 R12: dffffc0000000000 [ 166.400774][ C1] R13: 0000000000000008 R14: ffff8880a377e510 R15: ffff88809274c0c0 [ 166.408753][ C1] ? __fput+0x184/0x740 [ 166.412904][ C1] ? __fput+0x1c0/0x740 [ 166.417052][ C1] ____fput+0x15/0x20 [ 166.421022][ C1] task_work_run+0x17e/0x1b0 [ 166.425604][ C1] prepare_exit_to_usermode+0x483/0x5b0 [ 166.431141][ C1] syscall_return_slowpath+0x113/0x4a0 [ 166.436605][ C1] do_syscall_64+0x11f/0x1c0 [ 166.441199][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.447102][ C1] RIP: 0033:0x45e433 [ 166.450998][ C1] Code: 48 89 ee 48 89 e7 e8 2c 1f fa ff 31 c0 48 89 e2 be 33 89 00 00 89 df e8 bb c0 ff ff 85 c0 78 17 48 63 fb b8 03 00 00 00 0f 05 <8b> 44 24 10 48 83 c4 38 5b 5d c3 66 90 48 c7 c2 d4 ff ff ff 48 63 [ 166.470944][ C1] RSP: 002b:00007ffcf2756240 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 166.479968][ C1] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 000000000045e433 [ 166.489252][ C1] RDX: 00007ffcf2756240 RSI: 0000000000008933 RDI: 0000000000000004 [ 166.497438][ C1] RBP: 00000000004bfc22 R08: 0000000000000009 R09: 00007ffcf2756328 [ 166.505400][ C1] R10: 000000000000000f R11: 0000000000000246 R12: 00000000004bfc22 [ 166.513363][ C1] R13: 0000000000000000 R14: 0000000000000003 R15: 00007ffcf2756328