[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 47.184618][ T25] audit: type=1800 audit(1575367556.750:25): pid=8287 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 47.204505][ T25] audit: type=1800 audit(1575367556.750:26): pid=8287 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 47.247109][ T25] audit: type=1800 audit(1575367556.760:27): pid=8287 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 '10.128.0.204' (ECDSA) to the list of known hosts. 2019/12/03 10:06:08 fuzzer started 2019/12/03 10:06:10 dialing manager at 10.128.0.26:38907 2019/12/03 10:06:10 syscalls: 2697 2019/12/03 10:06:10 code coverage: enabled 2019/12/03 10:06:10 comparison tracing: enabled 2019/12/03 10:06:10 extra coverage: extra coverage is not supported by the kernel 2019/12/03 10:06:10 setuid sandbox: enabled 2019/12/03 10:06:10 namespace sandbox: enabled 2019/12/03 10:06:10 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 10:06:10 fault injection: enabled 2019/12/03 10:06:10 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 10:06:10 net packet injection: enabled 2019/12/03 10:06:10 net device setup: enabled 2019/12/03 10:06:10 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 10:06:10 devlink PCI setup: PCI device 0000:00:10.0 is not available 10:06:11 executing program 0: r0 = socket$kcm(0x2, 0x20000000002, 0x73) recvmsg$kcm(r0, &(0x7f0000002f40)={0x0, 0x0, 0x0}, 0xb6c88da8666092df) 10:06:11 executing program 1: r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f00000000c0)=0x2000000000000071, 0x4) bind$inet(r0, &(0x7f0000000280)={0x2, 0x4e23, @multicast1}, 0x10) sendto$inet(r0, 0x0, 0x0, 0x2000073d, &(0x7f0000e68000)={0x2, 0x4e23, @local}, 0x10) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000000)='nv\x00', 0x3) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) sendto$inet(r0, &(0x7f0000000300)='\f', 0xc3f2, 0x11, 0x0, 0x0) syzkaller login: [ 62.462474][ T8451] IPVS: ftp: loaded support on port[0] = 21 10:06:12 executing program 2: r0 = socket$inet_udp(0x2, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000040)={'bridge_slave_1\x00', 0x0}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000180)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000600)=ANY=[@ANYBLOB="480100002400070500"/20, @ANYRES32=r1, @ANYBLOB="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"], 0x148}}, 0x0) r3 = socket(0x10, 0x80002, 0x0) sendmmsg$alg(r3, &(0x7f0000000180)=[{0x2, 0x1000000000000, &(0x7f0000000080), 0xe, &(0x7f0000000100)}], 0x492492492492642, 0x0) [ 62.673422][ T8454] IPVS: ftp: loaded support on port[0] = 21 [ 62.683906][ T8451] chnl_net:caif_netlink_parms(): no params data found [ 62.823799][ T8451] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.831730][ T8451] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.840575][ T8451] device bridge_slave_0 entered promiscuous mode [ 62.859943][ T8451] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.869398][ T8451] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.877862][ T8451] device bridge_slave_1 entered promiscuous mode [ 62.893824][ T8456] IPVS: ftp: loaded support on port[0] = 21 10:06:12 executing program 3: r0 = 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, 0x0, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000ffd000/0x3000)=nil, 0x3000, 0x0, 0x11, r0, 0x0) mmap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x0, 0x18011, r0, 0x4000) [ 62.968368][ T8451] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.988162][ T8454] chnl_net:caif_netlink_parms(): no params data found [ 62.999227][ T8451] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.069849][ T8451] team0: Port device team_slave_0 added [ 63.080243][ T8451] team0: Port device team_slave_1 added [ 63.116600][ T8454] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.135122][ T8454] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.153485][ T8454] device bridge_slave_0 entered promiscuous mode [ 63.206944][ T8454] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.215251][ T8454] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.223754][ T8454] device bridge_slave_1 entered promiscuous mode 10:06:12 executing program 4: r0 = semget$private(0x0, 0x5, 0x0) semtimedop(r0, &(0x7f0000000040)=[{0x0, 0x5}, {}], 0x2, 0x0) semop(r0, &(0x7f00000000c0)=[{0x0, 0x0, 0x3f00}], 0x1) [ 63.315418][ T8451] device hsr_slave_0 entered promiscuous mode [ 63.422386][ T8451] device hsr_slave_1 entered promiscuous mode [ 63.476074][ T8454] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.514909][ T8459] IPVS: ftp: loaded support on port[0] = 21 [ 63.529291][ T8461] IPVS: ftp: loaded support on port[0] = 21 10:06:13 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000000c0)=[{&(0x7f0000000080)="2e0000002a000500d25a80648c000000050000000100084002376ee6735e000000053582c137153e370900018000", 0x2e}], 0x68}, 0x0) [ 63.582486][ T8454] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.715892][ T8456] chnl_net:caif_netlink_parms(): no params data found [ 63.727680][ T8454] team0: Port device team_slave_0 added [ 63.739139][ T8451] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.807962][ T8464] IPVS: ftp: loaded support on port[0] = 21 [ 63.817762][ T8454] team0: Port device team_slave_1 added [ 63.826721][ T8451] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.886093][ T8451] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.945575][ T8451] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.084916][ T8454] device hsr_slave_0 entered promiscuous mode [ 64.143769][ T8454] device hsr_slave_1 entered promiscuous mode [ 64.182586][ T8454] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.251719][ T8456] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.259930][ T8456] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.268148][ T8456] device bridge_slave_0 entered promiscuous mode [ 64.300704][ T8456] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.308177][ T8456] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.316645][ T8456] device bridge_slave_1 entered promiscuous mode [ 64.370021][ T8454] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 64.429260][ T8454] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 64.486550][ T8454] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 64.536357][ T8454] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 64.596690][ T8456] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.648982][ T8456] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.696514][ T8459] chnl_net:caif_netlink_parms(): no params data found [ 64.723616][ T8464] chnl_net:caif_netlink_parms(): no params data found [ 64.748346][ T8456] team0: Port device team_slave_0 added [ 64.758033][ T8456] team0: Port device team_slave_1 added [ 64.764418][ T8461] chnl_net:caif_netlink_parms(): no params data found [ 64.854927][ T8456] device hsr_slave_0 entered promiscuous mode [ 64.892496][ T8456] device hsr_slave_1 entered promiscuous mode [ 64.932444][ T8456] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.979914][ T8459] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.987856][ T8459] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.997909][ T8459] device bridge_slave_0 entered promiscuous mode [ 65.010162][ T8459] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.017626][ T8459] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.025768][ T8459] device bridge_slave_1 entered promiscuous mode [ 65.043177][ T8456] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 65.084662][ T8456] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 65.128645][ T8456] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 65.188402][ T8456] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 65.253967][ T8451] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.285998][ T8461] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.293469][ T8461] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.301284][ T8461] device bridge_slave_0 entered promiscuous mode [ 65.311343][ T8461] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.318729][ T8461] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.326623][ T8461] device bridge_slave_1 entered promiscuous mode [ 65.353337][ T8464] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.360429][ T8464] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.371139][ T8464] device bridge_slave_0 entered promiscuous mode [ 65.381050][ T8459] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.397601][ T8454] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.409343][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.418377][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.431623][ T8461] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.442839][ T8464] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.449927][ T8464] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.458139][ T8464] device bridge_slave_1 entered promiscuous mode [ 65.477416][ T8459] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.490001][ T8451] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.503898][ T8461] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.519093][ T8464] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.548638][ T8459] team0: Port device team_slave_0 added [ 65.557455][ T8459] team0: Port device team_slave_1 added [ 65.577433][ T8464] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.590446][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.600028][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.608861][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.616077][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.626122][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.634243][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.667858][ T8461] team0: Port device team_slave_0 added [ 65.683814][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.695073][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.703742][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.713447][ T3183] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.720517][ T3183] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.731473][ T8454] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.784757][ T8459] device hsr_slave_0 entered promiscuous mode [ 65.843243][ T8459] device hsr_slave_1 entered promiscuous mode [ 65.882249][ T8459] debugfs: Directory 'hsr0' with parent '/' already present! [ 65.896040][ T8461] team0: Port device team_slave_1 added [ 65.906992][ T8464] team0: Port device team_slave_0 added [ 65.914555][ T8464] team0: Port device team_slave_1 added [ 65.925641][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.935862][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.977493][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.986636][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.995768][ T2710] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.002909][ T2710] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.010441][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.019973][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.028400][ T2710] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.035548][ T2710] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.043165][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 66.052450][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.124125][ T8464] device hsr_slave_0 entered promiscuous mode [ 66.152563][ T8464] device hsr_slave_1 entered promiscuous mode [ 66.192116][ T8464] debugfs: Directory 'hsr0' with parent '/' already present! [ 66.203072][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 66.203749][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.285043][ T8461] device hsr_slave_0 entered promiscuous mode [ 66.343524][ T8461] device hsr_slave_1 entered promiscuous mode [ 66.382243][ T8461] debugfs: Directory 'hsr0' with parent '/' already present! [ 66.434264][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.443051][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.451841][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 66.460955][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.470501][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.479354][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.488587][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 66.497260][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.505958][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.516547][ T8459] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 66.575228][ T8459] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 66.634614][ T8459] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 66.675099][ T8459] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 66.758401][ T8454] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 66.769598][ T8454] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 66.783022][ T8464] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 66.836075][ T8464] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 66.897071][ T8464] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 66.976398][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.985339][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.993992][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.002764][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.011610][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.020529][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.028859][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.038372][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.047741][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.064651][ T8456] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.076404][ T8464] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 67.137489][ T8451] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.154492][ T8461] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 67.186227][ T8461] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 67.246350][ T8461] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 67.297487][ T8461] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 67.361634][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.370443][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.379072][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.387053][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.398960][ T8456] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.415714][ T8454] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.435522][ T8451] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.443776][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.451332][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.460055][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.469394][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.478061][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.485177][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.493181][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.550529][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.572729][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.581268][ T3183] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.588421][ T3183] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.603615][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.613066][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 172.591923][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 172.598805][ C0] rcu: 0-...!: (10499 ticks this GP) idle=3ce/1/0x4000000000000002 softirq=11550/11550 fqs=40 [ 172.609404][ C0] (t=10500 jiffies g=7189 q=66) [ 172.614340][ C0] rcu: rcu_preempt kthread starved for 10416 jiffies! g7189 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 172.625454][ C0] rcu: RCU grace-period kthread stack dump: [ 172.631385][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 172.639328][ C0] Call Trace: [ 172.642761][ C0] __schedule+0x9a0/0xcc0 [ 172.647127][ C0] schedule+0x181/0x210 [ 172.651317][ C0] schedule_timeout+0x14f/0x240 [ 172.656225][ C0] ? run_local_timers+0x120/0x120 [ 172.661459][ C0] rcu_gp_kthread+0xed8/0x1770 [ 172.666279][ C0] kthread+0x332/0x350 [ 172.670393][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 172.675512][ C0] ? kthread_blkcg+0xe0/0xe0 [ 172.680221][ C0] ret_from_fork+0x24/0x30 [ 172.684710][ C0] NMI backtrace for cpu 0 [ 172.689056][ C0] CPU: 0 PID: 8454 Comm: syz-executor.1 Not tainted 5.4.0-syzkaller #0 [ 172.697470][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 172.707552][ C0] Call Trace: [ 172.710847][ C0] [ 172.713707][ C0] dump_stack+0x1fb/0x318 [ 172.718174][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 172.723057][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 172.729249][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 172.735359][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 172.741383][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 172.747324][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 172.752471][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 172.757694][ C0] ? trace_hardirqs_off+0x74/0x80 [ 172.762747][ C0] update_process_times+0x12d/0x180 [ 172.767962][ C0] tick_sched_timer+0x263/0x420 [ 172.772832][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 172.778412][ C0] __hrtimer_run_queues+0x403/0x840 [ 172.783637][ C0] hrtimer_interrupt+0x38c/0xda0 [ 172.788585][ C0] ? debug_smp_processor_id+0x9/0x20 [ 172.794030][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 172.799631][ C0] apic_timer_interrupt+0xf/0x20 [ 172.804560][ C0] [ 172.807490][ C0] RIP: 0010:free_thread_stack+0x16d/0x590 [ 172.813230][ C0] Code: 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 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 [ 172.832852][ C0] RSP: 0018:ffffc900022e7bd0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 172.841292][ C0] RAX: ffffffff81487433 RBX: ffff88809ebe6308 RCX: ffff88808c668140 [ 172.849280][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002a69340 [ 172.857284][ C0] RBP: ffffc900022e7c08 R08: dffffc0000000000 R09: fffffbfff120248a [ 172.865284][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff888093e6e5a0 [ 172.873265][ C0] R13: dffffc0000000000 R14: 1ffff110127cdcb4 R15: ffff8880921717a8 [ 172.881294][ C0] ? mod_memcg_page_state+0x123/0x190 [ 172.886726][ C0] put_task_stack+0xa3/0x130 [ 172.891366][ C0] finish_task_switch+0x3f1/0x550 [ 172.896442][ C0] __schedule+0x9a8/0xcc0 [ 172.900781][ C0] schedule+0x181/0x210 [ 172.904930][ C0] do_nanosleep+0x1d0/0x6c0 [ 172.909437][ C0] hrtimer_nanosleep+0x3a6/0x5b0 [ 172.914595][ C0] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 172.920428][ C0] __x64_sys_nanosleep+0x186/0x1d0 [ 172.925584][ C0] do_syscall_64+0xf7/0x1c0 [ 172.930093][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 172.936012][ C0] RIP: 0033:0x458b20 [ 172.939914][ C0] Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d 11 fe 61 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 d1 fb ff c3 48 83 ec 08 e8 ea 46 00 00 [ 172.959512][ C0] RSP: 002b:00007ffe290e4898 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 [ 172.967945][ C0] RAX: ffffffffffffffda RBX: 00000000000107e7 RCX: 0000000000458b20 [ 172.976038][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffe290e48a0 [ 172.984007][ C0] RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000002629940 [ 172.991989][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007 [ 172.999966][ C0] R13: 00007ffe290e48f0 R14: 00000000000107d6 R15: 00007ffe290e4900