[ 42.323923][ T26] audit: type=1800 audit(1575356604.929:27): pid=7972 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 42.344066][ T26] audit: type=1800 audit(1575356604.929:28): pid=7972 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. [ 43.152144][ T26] audit: type=1800 audit(1575356605.799:29): pid=7972 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 43.171602][ T26] audit: type=1800 audit(1575356605.799:30): pid=7972 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.86' (ECDSA) to the list of known hosts. 2019/12/03 07:03:35 fuzzer started 2019/12/03 07:03:37 dialing manager at 10.128.0.26:38907 2019/12/03 07:03:37 syscalls: 2697 2019/12/03 07:03:37 code coverage: enabled 2019/12/03 07:03:37 comparison tracing: enabled 2019/12/03 07:03:37 extra coverage: extra coverage is not supported by the kernel 2019/12/03 07:03:37 setuid sandbox: enabled 2019/12/03 07:03:37 namespace sandbox: enabled 2019/12/03 07:03:37 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 07:03:37 fault injection: enabled 2019/12/03 07:03:37 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 07:03:37 net packet injection: enabled 2019/12/03 07:03:37 net device setup: enabled 2019/12/03 07:03:37 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 07:03:37 devlink PCI setup: PCI device 0000:00:10.0 is not available 07:03:38 executing program 0: unshare(0x2040400) r0 = socket$inet6(0xa, 0x6, 0x0) prlimit64(0x0, 0x7, &(0x7f0000000180), 0x0) accept4(r0, 0x0, 0x0, 0x0) 07:03:38 executing program 1: pipe2$9p(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) mount$9p_fd(0x0, &(0x7f0000000300)='./file0\x00', &(0x7f00000001c0)='9p\x00', 0x0, &(0x7f0000000100)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x2c, {[{@cachetag={'cachetag', 0x3d, 'em1\\lo\\em1{md5sum(cgroup)[+)posix_acl_access.nodev}'}, 0x8}]}}) syzkaller login: [ 55.964486][ T8137] IPVS: ftp: loaded support on port[0] = 21 07:03:38 executing program 2: r0 = socket$inet6(0x10, 0x2, 0x0) sendmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000300)=[{&(0x7f0000000000)="5500000018007f5f00fe01b2a4a29093020604020000fe01020040003900090035004c0a0100000019000b4023dc0b04000022dc1338d54400009b84136ef75afb83de4411000500c43ab8220000060c3a62645656", 0x55}], 0x1}, 0x0) [ 56.133554][ T8140] IPVS: ftp: loaded support on port[0] = 21 [ 56.174353][ T8137] chnl_net:caif_netlink_parms(): no params data found [ 56.253238][ T8142] IPVS: ftp: loaded support on port[0] = 21 [ 56.286436][ T8137] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.295020][ T8137] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.303301][ T8137] device bridge_slave_0 entered promiscuous mode [ 56.337514][ T8137] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.344615][ T8137] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.352886][ T8137] device bridge_slave_1 entered promiscuous mode [ 56.360515][ T8140] chnl_net:caif_netlink_parms(): no params data found 07:03:39 executing program 3: unshare(0x600) r0 = socket(0x40000000015, 0x805, 0x0) bind$rds(r0, &(0x7f0000000000)={0x2, 0x0, @multicast2}, 0x10) [ 56.425620][ T8137] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.450399][ T8137] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.478542][ T8140] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.485642][ T8140] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.508955][ T8140] device bridge_slave_0 entered promiscuous mode [ 56.528002][ T8140] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.535090][ T8140] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.557848][ T8140] device bridge_slave_1 entered promiscuous mode [ 56.613071][ T8137] team0: Port device team_slave_0 added [ 56.634961][ T8140] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link 07:03:39 executing program 4: r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) write$binfmt_elf32(0xffffffffffffffff, 0x0, 0x0) openat$audio1(0xffffffffffffff9c, &(0x7f0000000040)='/dev/audio1\x00', 0x16d922, 0x0) ioctl$VHOST_SET_MEM_TABLE(0xffffffffffffffff, 0x4008af03, 0x0) [ 56.676744][ T8137] team0: Port device team_slave_1 added [ 56.685511][ T8140] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.710859][ T8145] IPVS: ftp: loaded support on port[0] = 21 [ 56.819603][ T8137] device hsr_slave_0 entered promiscuous mode [ 56.858028][ T8137] device hsr_slave_1 entered promiscuous mode 07:03:39 executing program 5: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000040)='/dev/kvm\x00', 0x0, 0x0) mount$fuseblk(&(0x7f0000000080)='/dev/loop0\x00', 0x0, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f000000b000/0x18000)=nil, &(0x7f00000008c0)=[@text32={0x20, &(0x7f00000000c0)="b805000000b9510000000f01c10f46a78900000066ba2100b067ee66ba4100edb9800000c00f3266ba400066ed0f30c4c271de9d0000000066b808008ed0660f38806f000f011c2666b8bf008ee0", 0x4e}], 0x1, 0x0, 0x0, 0x0) ioctl$KVM_CREATE_IRQCHIP(r1, 0xae60) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000bf7000)={0x0, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_CREATE_PIT2(r1, 0x4040ae77, &(0x7f0000000000)) ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000380)={[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4cb]}) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f0000000240)={[{0x0, 0x0, 0x1}]}) ioctl$KVM_RUN(r2, 0xae80, 0x0) ioctl$KVM_RUN(r2, 0xae80, 0x0) [ 56.906380][ T8142] chnl_net:caif_netlink_parms(): no params data found [ 56.918146][ T8140] team0: Port device team_slave_0 added [ 56.930708][ T8140] team0: Port device team_slave_1 added [ 56.941659][ T8148] IPVS: ftp: loaded support on port[0] = 21 [ 57.059771][ T8140] device hsr_slave_0 entered promiscuous mode [ 57.097361][ T8140] device hsr_slave_1 entered promiscuous mode [ 57.147529][ T8140] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.185357][ T8150] IPVS: ftp: loaded support on port[0] = 21 [ 57.194723][ T8142] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.202136][ T8142] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.210209][ T8142] device bridge_slave_0 entered promiscuous mode [ 57.220727][ T8142] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.229374][ T8142] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.237236][ T8142] device bridge_slave_1 entered promiscuous mode [ 57.263664][ T8137] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.320900][ T8142] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.337487][ T8142] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.347177][ T8137] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.395101][ T8137] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.430648][ T8137] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.530897][ T8142] team0: Port device team_slave_0 added [ 57.540472][ T8140] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 57.600452][ T8140] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 57.649618][ T8140] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.700705][ T8142] team0: Port device team_slave_1 added [ 57.706435][ T8140] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 57.829013][ T8142] device hsr_slave_0 entered promiscuous mode [ 57.877439][ T8142] device hsr_slave_1 entered promiscuous mode [ 57.947305][ T8142] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.958406][ T8145] chnl_net:caif_netlink_parms(): no params data found [ 58.069815][ T8148] chnl_net:caif_netlink_parms(): no params data found [ 58.095107][ T8150] chnl_net:caif_netlink_parms(): no params data found [ 58.104369][ T8145] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.111731][ T8145] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.121323][ T8145] device bridge_slave_0 entered promiscuous mode [ 58.129837][ T8142] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 58.195423][ T8137] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.203870][ T8145] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.211327][ T8145] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.219383][ T8145] device bridge_slave_1 entered promiscuous mode [ 58.226160][ T8142] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 58.288633][ T8140] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.304785][ T8142] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 58.363670][ T8142] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 58.434503][ T8140] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.446451][ T8148] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.454717][ T8148] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.463027][ T8148] device bridge_slave_0 entered promiscuous mode [ 58.474176][ T8148] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.482217][ T8148] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.489930][ T8148] device bridge_slave_1 entered promiscuous mode [ 58.499955][ T8145] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.511125][ T8137] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.518838][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.530076][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.538077][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.545948][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.557717][ T8150] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.564779][ T8150] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.573996][ T8150] device bridge_slave_0 entered promiscuous mode [ 58.585558][ T8150] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.592797][ T8150] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.600681][ T8150] device bridge_slave_1 entered promiscuous mode [ 58.609024][ T8145] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.629252][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.638278][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.646586][ T3013] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.653838][ T3013] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.662162][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.686425][ T8145] team0: Port device team_slave_0 added [ 58.694271][ T8145] team0: Port device team_slave_1 added [ 58.707563][ T8148] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.720375][ T8150] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.731767][ T8150] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.756799][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.765410][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.774179][ T3013] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.781415][ T3013] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.789529][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.798292][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.806507][ T3013] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.813607][ T3013] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.821985][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.831025][ T8148] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.901098][ T8145] device hsr_slave_0 entered promiscuous mode [ 58.947543][ T8145] device hsr_slave_1 entered promiscuous mode [ 58.988174][ T8145] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.008219][ T8150] team0: Port device team_slave_0 added [ 59.016652][ T8150] team0: Port device team_slave_1 added [ 59.030033][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.041239][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.050417][ T3013] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.057717][ T3013] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.066783][ T3013] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.099370][ T8148] team0: Port device team_slave_0 added [ 59.112943][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.121870][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.131289][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.139715][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.148247][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.168901][ T8140] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 59.179830][ T8140] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.192370][ T8148] team0: Port device team_slave_1 added [ 59.200707][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.210246][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.219177][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.228953][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.238199][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.246385][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.255679][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.263642][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.278459][ T8142] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.360621][ T8148] device hsr_slave_0 entered promiscuous mode [ 59.398334][ T8148] device hsr_slave_1 entered promiscuous mode [ 59.467222][ T8148] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.549181][ T8150] device hsr_slave_0 entered promiscuous mode [ 59.577508][ T8150] device hsr_slave_1 entered promiscuous mode [ 59.618610][ T8150] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.631738][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.639685][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.649471][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.658815][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.667780][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.676251][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.684899][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.693522][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.702273][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.710196][ T8145] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.762895][ T8145] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.819235][ T8145] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.850106][ T8145] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.923034][ T8137] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.934573][ T8137] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.947858][ T8142] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.961664][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.971430][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.984511][ T8140] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.006090][ T8148] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 60.052508][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.060074][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.067610][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.076115][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.084685][ T8154] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.091792][ T8154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.133712][ T8148] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 60.159430][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.168236][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.175647][ T8154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.197784][ T8137] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.204840][ T8150] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 60.232929][ T8150] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 60.278568][ T8148] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 60.338655][ T8148] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 61.171453][ T8162] FS-Cache: Duplicate cookie detected [ 61.176910][ T8162] FS-Cache: O-cookie c=00000000247c9782 [p=00000000c8434751 fl=222 nc=0 na=1] [ 61.185916][ T8162] FS-Cache: O-cookie d=00000000e73e1eed n=0000000059f666fb [ 61.193184][ T8162] FS-Cache: O-key=[52] '656d315c6c6f5c656d317b6d643573756d286367726f7570295b2b29706f7369785f61636c5f6163636573732e6e6f6465767d08' [ 61.206748][ T8162] FS-Cache: N-cookie c=000000004c28b46e [p=00000000c8434751 fl=2 nc=0 na=1] [ 61.215516][ T8162] FS-Cache: N-cookie d=00000000e73e1eed n=0000000054a77897 [ 61.222754][ T8162] FS-Cache: N-key=[52] '656d315c6c6f5c656d317b6d643573756d286367726f7570295b2b29706f7369785f61636c5f6163636573732e6e6f6465767d08' [ 165.376979][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 165.383930][ C1] rcu: 1-...!: (10499 ticks this GP) idle=84a/1/0x4000000000000002 softirq=10453/10453 fqs=40 [ 165.394542][ C1] (t=10501 jiffies g=6389 q=114) [ 165.399573][ C1] rcu: rcu_preempt kthread starved for 10416 jiffies! g6389 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 165.410661][ C1] rcu: RCU grace-period kthread stack dump: [ 165.416548][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 165.424446][ C1] Call Trace: [ 165.427829][ C1] __schedule+0x9a0/0xcc0 [ 165.432170][ C1] schedule+0x181/0x210 [ 165.436388][ C1] schedule_timeout+0x14f/0x240 [ 165.441235][ C1] ? run_local_timers+0x120/0x120 [ 165.446259][ C1] rcu_gp_kthread+0xed8/0x1770 [ 165.451121][ C1] kthread+0x332/0x350 [ 165.456052][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 165.461196][ C1] ? kthread_blkcg+0xe0/0xe0 [ 165.465787][ C1] ret_from_fork+0x24/0x30 [ 165.470214][ C1] NMI backtrace for cpu 1 [ 165.474541][ C1] CPU: 1 PID: 4087 Comm: udevd Not tainted 5.4.0-syzkaller #0 [ 165.481986][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.492038][ C1] Call Trace: [ 165.495318][ C1] [ 165.498176][ C1] dump_stack+0x1fb/0x318 [ 165.502581][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 165.507449][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 165.513777][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 165.519873][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 165.525866][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 165.531848][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 165.537586][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 165.543022][ C1] ? trace_hardirqs_off+0x74/0x80 [ 165.548221][ C1] update_process_times+0x12d/0x180 [ 165.553422][ C1] tick_sched_timer+0x263/0x420 [ 165.558270][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 165.563811][ C1] __hrtimer_run_queues+0x403/0x840 [ 165.569114][ C1] hrtimer_interrupt+0x38c/0xda0 [ 165.574068][ C1] ? debug_smp_processor_id+0x9/0x20 [ 165.579555][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 165.585119][ C1] apic_timer_interrupt+0xf/0x20 [ 165.590053][ C1] [ 165.592996][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 [ 165.599148][ 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 [ 165.618820][ C1] RSP: 0018:ffffc900018a7ad8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 165.627228][ C1] RAX: ffffffff81487433 RBX: 0000000000000000 RCX: ffff888094f642c0 [ 165.635600][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00025172c0 [ 165.643586][ C1] RBP: ffffc900018a7b00 R08: 000000000003a768 R09: ffffed10150a4aa7 [ 165.651637][ C1] R10: ffffed10150a4aa7 R11: 0000000000000000 R12: dffffc0000000000 [ 165.659609][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880a8525528 [ 165.667846][ C1] ? mod_memcg_page_state+0x123/0x190 [ 165.673238][ C1] ? free_thread_stack+0x124/0x590 [ 165.678346][ C1] ? mod_memcg_page_state+0x123/0x190 [ 165.683801][ C1] free_thread_stack+0x168/0x590 [ 165.688739][ C1] put_task_stack+0xa3/0x130 [ 165.693513][ C1] finish_task_switch+0x3f1/0x550 [ 165.698541][ C1] __schedule+0x9a8/0xcc0 [ 165.703096][ C1] schedule+0x181/0x210 [ 165.707266][ C1] schedule_hrtimeout_range_clock+0x108/0x510 [ 165.713344][ C1] ? _raw_spin_unlock_irq+0x22/0x80 [ 165.718722][ C1] schedule_hrtimeout_range+0x2a/0x40 [ 165.724326][ C1] ep_poll+0xa4d/0xe80 [ 165.728417][ C1] ? debug_smp_processor_id+0x1c/0x20 [ 165.734195][ C1] ? do_task_dead+0xc0/0xc0 [ 165.738792][ C1] do_epoll_wait+0x1ee/0x260 [ 165.743384][ C1] __x64_sys_epoll_wait+0x9a/0xb0 [ 165.748486][ C1] do_syscall_64+0xf7/0x1c0 [ 165.753108][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.758995][ C1] RIP: 0033:0x7f0fb5e94943 [ 165.763513][ C1] Code: 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 83 3d b5 dc 2a 00 00 75 13 49 89 ca b8 e8 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 3b c4 00 00 48 89 04 24 [ 165.783315][ C1] RSP: 002b:00007ffd6969dbc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [ 165.791734][ C1] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f0fb5e94943 [ 165.799798][ C1] RDX: 0000000000000008 RSI: 00007ffd6969dcc0 RDI: 000000000000000a [ 165.808272][ C1] RBP: 0000000001cb2650 R08: 0000000000000000 R09: 0000000000000000 [ 165.816248][ C1] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000003 [ 165.824463][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000001cb0250