Warning: Permanently added '10.128.1.50' (ECDSA) to the list of known hosts. 2020/01/08 09:03:10 fuzzer started 2020/01/08 09:03:11 dialing manager at 10.128.0.26:35703 2020/01/08 09:03:12 syscalls: 2824 2020/01/08 09:03:12 code coverage: enabled 2020/01/08 09:03:12 comparison tracing: enabled 2020/01/08 09:03:12 extra coverage: enabled 2020/01/08 09:03:12 setuid sandbox: enabled 2020/01/08 09:03:12 namespace sandbox: enabled 2020/01/08 09:03:12 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 09:03:12 fault injection: enabled 2020/01/08 09:03:12 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 09:03:12 net packet injection: enabled 2020/01/08 09:03:12 net device setup: enabled 2020/01/08 09:03:12 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 09:03:12 devlink PCI setup: PCI device 0000:00:10.0 is not available 09:03:13 executing program 0: r0 = epoll_create1(0x0) flock(r0, 0xfffffffffffffffe) r1 = epoll_create1(0x0) flock(r1, 0xfffffffffffffffe) r2 = epoll_create1(0x0) flock(r2, 0x2) 09:03:13 executing program 1: r0 = socket$inet6(0xa, 0x80003, 0xff) ioctl$sock_SIOCSIFVLAN_SET_VLAN_FLAG_CMD(r0, 0x8940, &(0x7f0000000000)) [ 63.195790][ T8449] IPVS: ftp: loaded support on port[0] = 21 09:03:13 executing program 2: r0 = syz_open_dev$dri(&(0x7f0000000100)='/dev/dri/card#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) ioctl$DRM_IOCTL_GET_MAGIC(r0, 0x80046402, 0x0) close(r0) [ 63.348429][ T8449] chnl_net:caif_netlink_parms(): no params data found [ 63.402828][ T8452] IPVS: ftp: loaded support on port[0] = 21 [ 63.438112][ T8449] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.445801][ T8449] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.454715][ T8449] device bridge_slave_0 entered promiscuous mode [ 63.464640][ T8449] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.471869][ T8449] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.479631][ T8449] device bridge_slave_1 entered promiscuous mode [ 63.506693][ T8449] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.518743][ T8449] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.546648][ T8449] team0: Port device team_slave_0 added [ 63.554322][ T8449] team0: Port device team_slave_1 added 09:03:13 executing program 3: pipe(&(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = socket$alg(0x26, 0x5, 0x0) write$binfmt_script(r1, &(0x7f0000000380)=ANY=[], 0xfffffed5) bind$alg(r2, &(0x7f0000000200)={0x26, 'hash\x00', 0x0, 0x0, 'sha224-generic\x00'}, 0x58) r3 = accept4(r2, 0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup3(r4, r5, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) r7 = accept4$alg(r3, 0x0, 0x0, 0x0) splice(r0, 0x0, r7, 0x0, 0x1ffffd, 0x0) [ 63.643752][ T8449] device hsr_slave_0 entered promiscuous mode [ 63.681394][ T8449] device hsr_slave_1 entered promiscuous mode [ 63.753532][ T8454] IPVS: ftp: loaded support on port[0] = 21 [ 63.850633][ T8452] chnl_net:caif_netlink_parms(): no params data found [ 63.892854][ T8456] IPVS: ftp: loaded support on port[0] = 21 09:03:14 executing program 4: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f00000001c0)={0x1, &(0x7f0000000080)=[{0x6, 0x0, 0x0, 0x7ffffffb}]}) clone(0x0, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) [ 63.964829][ T8449] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.014538][ T8452] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.031311][ T8452] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.061657][ T8452] device bridge_slave_0 entered promiscuous mode [ 64.084104][ T8449] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.135996][ T8452] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.151216][ T8452] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.158794][ T8452] device bridge_slave_1 entered promiscuous mode 09:03:14 executing program 5: clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) wait4(0x0, 0x0, 0x80000000, 0x0) r0 = getpid() socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) rt_tgsigqueueinfo(r0, r0, 0x15, &(0x7f00000004c0)) ptrace(0x4206, r0) rt_tgsigqueueinfo(r0, r0, 0x12, &(0x7f0000001180)={0x0, 0x0, 0xffffbfffffffc58e}) wait4(0xffffffffffffffff, 0x0, 0x8, 0x0) [ 64.192256][ T8449] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.199866][ T8459] IPVS: ftp: loaded support on port[0] = 21 [ 64.243908][ T8449] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.287637][ T8452] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.329031][ T8452] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.357789][ T8449] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.364972][ T8449] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.372734][ T8449] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.379788][ T8449] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.402295][ T8452] team0: Port device team_slave_0 added [ 64.426168][ T8461] IPVS: ftp: loaded support on port[0] = 21 [ 64.435628][ T2874] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.443698][ T2874] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.465707][ T8452] team0: Port device team_slave_1 added [ 64.504633][ T8456] chnl_net:caif_netlink_parms(): no params data found [ 64.583968][ T8452] device hsr_slave_0 entered promiscuous mode [ 64.641503][ T8452] device hsr_slave_1 entered promiscuous mode [ 64.691486][ T8452] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 64.699149][ T8452] Cannot create hsr debugfs directory [ 64.709175][ T8454] chnl_net:caif_netlink_parms(): no params data found [ 64.776681][ T8456] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.784399][ T8456] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.792598][ T8456] device bridge_slave_0 entered promiscuous mode [ 64.842777][ T8456] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.849880][ T8456] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.858537][ T8456] device bridge_slave_1 entered promiscuous mode [ 64.932382][ T8454] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.939475][ T8454] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.948474][ T8454] device bridge_slave_0 entered promiscuous mode [ 64.958394][ T8456] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.972840][ T8461] chnl_net:caif_netlink_parms(): no params data found [ 64.990280][ T8454] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.997496][ T8454] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.007058][ T8454] device bridge_slave_1 entered promiscuous mode [ 65.016344][ T8449] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.026794][ T8456] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.045217][ T8459] chnl_net:caif_netlink_parms(): no params data found [ 65.103660][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.112220][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.134759][ T8454] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.145747][ T8456] team0: Port device team_slave_0 added [ 65.154589][ T8449] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.175804][ T8454] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.186256][ T8456] team0: Port device team_slave_1 added [ 65.207077][ T8461] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.214468][ T8461] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.222380][ T8461] device bridge_slave_0 entered promiscuous mode [ 65.233808][ T8461] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.240898][ T8461] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.249195][ T8461] device bridge_slave_1 entered promiscuous mode [ 65.272951][ T8452] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 65.312978][ T8459] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.320094][ T8459] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.328184][ T8459] device bridge_slave_0 entered promiscuous mode [ 65.336744][ T8459] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.344069][ T8459] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.353179][ T8459] device bridge_slave_1 entered promiscuous mode [ 65.378491][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.387638][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.396307][ T2943] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.403395][ T2943] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.453773][ T8456] device hsr_slave_0 entered promiscuous mode [ 65.491623][ T8456] device hsr_slave_1 entered promiscuous mode [ 65.551514][ T8456] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.559079][ T8456] Cannot create hsr debugfs directory [ 65.564910][ T8452] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 65.629833][ T8454] team0: Port device team_slave_0 added [ 65.637506][ T8461] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.654278][ T3104] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.663054][ T3104] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.671458][ T3104] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.678490][ T3104] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.686450][ T3104] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.704871][ T8452] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 65.754211][ T8459] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.765905][ T8454] team0: Port device team_slave_1 added [ 65.784777][ T8461] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.800915][ T8452] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 65.856410][ T8459] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.869336][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.878989][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.887621][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.933803][ T8454] device hsr_slave_0 entered promiscuous mode [ 65.981722][ T8454] device hsr_slave_1 entered promiscuous mode [ 66.021263][ T8454] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.028908][ T8454] Cannot create hsr debugfs directory [ 66.065795][ T8459] team0: Port device team_slave_0 added [ 66.075002][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.084239][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.093055][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.114747][ T8461] team0: Port device team_slave_0 added [ 66.122054][ T8459] team0: Port device team_slave_1 added [ 66.129714][ T8461] team0: Port device team_slave_1 added [ 66.158409][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 66.167055][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.176055][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 66.184808][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.216096][ T8449] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.253869][ T8461] device hsr_slave_0 entered promiscuous mode [ 66.301809][ T8461] device hsr_slave_1 entered promiscuous mode [ 66.361175][ T8461] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.368831][ T8461] Cannot create hsr debugfs directory [ 66.432822][ T8459] device hsr_slave_0 entered promiscuous mode [ 66.462061][ T8459] device hsr_slave_1 entered promiscuous mode [ 66.491196][ T8459] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.498763][ T8459] Cannot create hsr debugfs directory [ 66.577351][ T3104] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.584896][ T3104] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.635442][ T8456] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 66.679294][ T8449] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.687405][ T8454] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 66.725128][ T8454] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 66.795649][ T8456] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 66.854422][ T8456] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 66.884280][ T8454] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 66.913634][ T8454] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 66.977224][ T8456] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 67.052088][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.060711][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.084226][ T8452] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.135014][ T8461] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 67.197380][ T8452] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.208148][ T8459] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 67.244061][ T8461] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 67.283337][ T3104] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.291037][ T3104] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.299234][ T3104] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.308831][ T3104] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.317742][ T3104] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.324838][ T3104] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.333040][ T3104] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.364124][ T8459] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 67.414270][ T8459] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 67.464423][ T8461] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 67.520445][ T8461] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 67.593758][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.603029][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.611590][ T2943] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.618634][ T2943] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.626227][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.635022][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.643285][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.652180][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.659779][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.670133][ T8449] device veth0_vlan entered promiscuous mode [ 67.677220][ T8459] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 67.761001][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.791494][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.799969][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.810334][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.818876][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.834171][ T8454] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.852605][ T8449] device veth1_vlan entered promiscuous mode [ 67.865823][ T8456] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.873401][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.890482][ T8452] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 67.903255][ T8452] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.927193][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.935770][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.944959][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.953469][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.965249][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.973055][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.980575][ T2890] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.997446][ T8454] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.011951][ T8456] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.018808][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.027630][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.078927][ T3104] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.089799][ T3104] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.099219][ T3104] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.099250][ T3104] bridge0: port 1(bridge_slave_0) entered forwarding state [ 173.131071][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 173.137959][ C0] rcu: 0-...!: (10499 ticks this GP) idle=64e/1/0x4000000000000002 softirq=11712/11712 fqs=0 [ 173.148440][ C0] (t=10501 jiffies g=6845 q=47) [ 173.153376][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g6845 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 173.164468][ C0] rcu: RCU grace-period kthread stack dump: [ 173.170352][ C0] rcu_preempt R running task 28984 10 2 0x80004000 [ 173.178239][ C0] Call Trace: [ 173.181525][ C0] __schedule+0x9a0/0xcc0 [ 173.185856][ C0] schedule+0x181/0x210 [ 173.190007][ C0] schedule_timeout+0x14f/0x240 [ 173.194845][ C0] ? run_local_timers+0x120/0x120 [ 173.199862][ C0] rcu_gp_kthread+0xed8/0x1770 [ 173.204629][ C0] kthread+0x332/0x350 [ 173.208687][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 173.213793][ C0] ? kthread_blkcg+0xe0/0xe0 [ 173.218375][ C0] ret_from_fork+0x24/0x30 [ 173.222792][ C0] NMI backtrace for cpu 0 [ 173.227117][ C0] CPU: 0 PID: 3104 Comm: kworker/0:65 Not tainted 5.5.0-rc5-syzkaller #0 [ 173.235528][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 173.245597][ C0] Workqueue: events linkwatch_event [ 173.250790][ C0] Call Trace: [ 173.254074][ C0] [ 173.256917][ C0] dump_stack+0x1fb/0x318 [ 173.261246][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 173.266083][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 173.272317][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 173.278369][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 173.284342][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 173.290217][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 173.295319][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 173.300506][ C0] ? trace_hardirqs_off+0x74/0x80 [ 173.305520][ C0] update_process_times+0x12d/0x180 [ 173.310709][ C0] tick_sched_timer+0x263/0x420 [ 173.315551][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 173.321100][ C0] __hrtimer_run_queues+0x403/0x840 [ 173.326300][ C0] hrtimer_interrupt+0x38c/0xda0 [ 173.331279][ C0] ? debug_smp_processor_id+0x9/0x20 [ 173.336558][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 173.342094][ C0] apic_timer_interrupt+0xf/0x20 [ 173.347010][ C0] [ 173.349938][ C0] RIP: 0010:free_thread_stack+0x151/0x590 [ 173.355647][ C0] Code: 31 f6 e8 02 8d 6f 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 73 94 6a 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 55 94 6a 00 48 8b 3b be fc ff ff ff e8 28 04 00 [ 173.375246][ C0] RSP: 0018:ffffc9000876f820 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 173.383778][ C0] RAX: 1ffff110143a6c21 RBX: ffff8880a1d36108 RCX: 0000000000000000 [ 173.391852][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00024d5700 [ 173.399817][ C0] RBP: ffffc9000876f858 R08: 000000000003a728 R09: fffffbfff124248a [ 173.407786][ C0] R10: fffffbfff124248a R11: 0000000000000000 R12: ffff8880a1d361a0 [ 173.415753][ C0] R13: dffffc0000000000 R14: 1ffff110143a6c34 R15: ffff88808b0a77f8 [ 173.423743][ C0] put_task_stack+0xa3/0x130 [ 173.428332][ C0] finish_task_switch+0x3f1/0x550 [ 173.433353][ C0] __schedule+0x9a8/0xcc0 [ 173.437679][ C0] ? ___preempt_schedule+0x16/0x18 [ 173.442795][ C0] preempt_schedule+0xdb/0x120 [ 173.447548][ C0] ? br_port_carrier_check+0x462/0x570 [ 173.452992][ C0] ___preempt_schedule+0x16/0x18 [ 173.457923][ C0] ? mark_lock+0x107/0x1650 [ 173.462413][ C0] __local_bh_enable_ip+0x17d/0x240 [ 173.467602][ C0] ? br_port_carrier_check+0x462/0x570 [ 173.473051][ C0] _raw_spin_unlock_bh+0x2f/0x40 [ 173.477977][ C0] br_port_carrier_check+0x462/0x570 [ 173.483264][ C0] br_device_event+0x449/0x860 [ 173.488021][ C0] raw_notifier_call_chain+0xec/0x190 [ 173.493386][ C0] netdev_state_change+0x147/0x1f0 [ 173.498486][ C0] linkwatch_do_dev+0x10e/0x160 [ 173.503339][ C0] __linkwatch_run_queue+0x446/0x730 [ 173.508617][ C0] linkwatch_event+0x4c/0x60 [ 173.513193][ C0] process_one_work+0x7ef/0x10d0 [ 173.518139][ C0] worker_thread+0xc01/0x1630 [ 173.522826][ C0] kthread+0x332/0x350 [ 173.526879][ C0] ? rcu_lock_release+0x30/0x30 [ 173.531718][ C0] ? kthread_blkcg+0xe0/0xe0 [ 173.536298][ C0] ret_from_fork+0x24/0x30