[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 44.923057][ T23] audit: type=1800 audit(1575337763.443:25): pid=8096 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 44.942058][ T23] audit: type=1800 audit(1575337763.453:26): pid=8096 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.975776][ T23] audit: type=1800 audit(1575337763.453:27): pid=8096 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 '10.128.0.32' (ECDSA) to the list of known hosts. 2019/12/03 01:49:33 fuzzer started 2019/12/03 01:49:35 dialing manager at 10.128.0.26:38907 2019/12/03 01:49:35 syscalls: 2697 2019/12/03 01:49:35 code coverage: enabled 2019/12/03 01:49:35 comparison tracing: enabled 2019/12/03 01:49:35 extra coverage: extra coverage is not supported by the kernel 2019/12/03 01:49:35 setuid sandbox: enabled 2019/12/03 01:49:35 namespace sandbox: enabled 2019/12/03 01:49:35 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 01:49:35 fault injection: enabled 2019/12/03 01:49:35 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 01:49:35 net packet injection: enabled 2019/12/03 01:49:35 net device setup: enabled 2019/12/03 01:49:35 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 01:49:35 devlink PCI setup: PCI device 0000:00:10.0 is not available 01:49:36 executing program 0: recvmmsg(0xffffffffffffffff, &(0x7f00000028c0)=[{{&(0x7f00000004c0)=@pppol2tpin6={0x18, 0x1, {0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @mcast2}}}, 0x21a, 0x0, 0x59, 0x0, 0x1d7}}], 0x1, 0x0, 0x0) perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0xeb, 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_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) creat(0x0, 0x0) r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='schedstat\x00') preadv(r0, &(0x7f00000017c0), 0x315, 0x0) 01:49:36 executing program 1: r0 = syz_open_dev$video4linux(&(0x7f0000000080)='/dev/v4l-subdev#\x00', 0x3, 0x0) ioctl$VIDIOC_G_EXT_CTRLS(r0, 0xc0585605, &(0x7f0000000100)={0x0, 0x1, 0x0, [], 0x0}) syzkaller login: [ 57.822769][ T8259] IPVS: ftp: loaded support on port[0] = 21 [ 57.983917][ T8259] chnl_net:caif_netlink_parms(): no params data found [ 58.030244][ T8262] IPVS: ftp: loaded support on port[0] = 21 [ 58.041303][ T8259] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.049935][ T8259] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.058374][ T8259] device bridge_slave_0 entered promiscuous mode [ 58.069896][ T8259] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.078099][ T8259] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.087455][ T8259] device bridge_slave_1 entered promiscuous mode 01:49:36 executing program 2: r0 = getpid() sched_setscheduler(r0, 0x0, &(0x7f0000000380)) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, @perf_config_ext={0x0, 0x8}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000180)='/proc/capi/capi20\x00', 0x0, 0x0) mkdir(&(0x7f00000002c0)='./file0\x00', 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f000001a000)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$unix(r2, &(0x7f0000000600)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000280)=[@rights={{0x14, 0x1, 0x1, [r2]}}], 0x18}, 0x0) r3 = dup2(r2, r2) sendmmsg$unix(r1, &(0x7f0000006f00)=[{0x0, 0x0, 0x0, 0x0, &(0x7f0000000480)=[@rights={{0x14, 0x1, 0x1, [r2]}}], 0x18}], 0x1, 0x0) dup2(r1, r3) bind$bt_l2cap(r3, &(0x7f0000000000)={0x1f, 0x50, {0xc3, 0x6, 0x7, 0x4e, 0x7, 0x3}, 0x101, 0xb5}, 0xe) mount(0x0, &(0x7f0000001600)='./file0\x00', &(0x7f0000000200)='cgroup2\x00', 0x0, 0x0) open(0x0, 0x0, 0x0) r4 = getpid() sched_setscheduler(r4, 0x5, &(0x7f0000000380)) r5 = perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0x1f, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x7c72b077e3fd11f7}, 0x0, 0x0, 0xffffffffffffffff, 0x0) fcntl$getown(r5, 0x9) bpf$BPF_GET_PROG_INFO(0xf, &(0x7f00000002c0)={0xffffffffffffffff, 0xc0, &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ""/16, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000200), 0x0, 0x0, 0x0, 0x0, 0x0}}, 0x10) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000400)={0x0, r5, 0x0, 0x1, &(0x7f00000003c0)='\x00', r6}, 0x30) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000200)={r4, 0xffffffffffffffff, 0x0, 0x0, 0x0, r6}, 0x30) bpf$BPF_PROG_GET_FD_BY_ID(0xd, &(0x7f00000000c0)={r6}, 0xc) r7 = openat$cgroup_procs(0xffffffffffffffff, 0x0, 0x2, 0x0) write$cgroup_pid(r7, &(0x7f0000000300), 0x12) r8 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000280)='/dev/nullb0\x00', 0x4400, 0x0) preadv(r8, &(0x7f0000000040)=[{&(0x7f0000000400)=""/4096, 0x3ffc00}], 0x1, 0x0) io_setup(0x8, &(0x7f0000000280)) socketpair$unix(0x1, 0x5, 0x0, &(0x7f000001a000)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$unix(r10, &(0x7f0000000600)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000280)=[@rights={{0x14, 0x1, 0x1, [r10]}}], 0x18}, 0x0) r11 = dup2(r10, r10) sendmmsg$unix(r9, &(0x7f0000006f00)=[{0x0, 0x0, 0x0, 0x0, &(0x7f0000000480)=[@rights={{0x14, 0x1, 0x1, [r10]}}], 0x18}], 0x1, 0x0) dup2(r9, r11) ioctl$SCSI_IOCTL_GET_PCI(r11, 0x5387, &(0x7f0000000080)) [ 58.121079][ T8259] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.135556][ T8259] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.183178][ T8259] team0: Port device team_slave_0 added [ 58.222060][ T8259] team0: Port device team_slave_1 added [ 58.281731][ T8262] chnl_net:caif_netlink_parms(): no params data found [ 58.327373][ T8259] device hsr_slave_0 entered promiscuous mode [ 58.365967][ T8259] device hsr_slave_1 entered promiscuous mode 01:49:36 executing program 3: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket$netlink(0x10, 0x3, 0x0) r4 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r4, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000340)=@newlink={0x48, 0x10, 0x705, 0x0, 0x0, {0x0, 0x0, 0x0, r5}, [@IFLA_LINKINFO={0x28, 0x12, @veth={{0xc, 0x1, 'veth\x00'}, {0x18, 0x2, @VETH_INFO_PEER={0x14}}}}]}, 0x48}}, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000003c0)=ANY=[@ANYBLOB="38000000240007050000000000a2a30005000000", @ANYRES32=r5, @ANYBLOB="00000000ffffffff000000000900010068667363000000000800020000000000"], 0x38}}, 0x0) sendmsg$nl_route_sched(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000640)=ANY=[@ANYBLOB="500000002800210400"/20, @ANYRES32=r5, @ANYBLOB="ac2c000014000000000000000c0080eb6367726f75700000200088517fa9407bfc8b001202001c0003000300000000000800010062706600040002000400060000ff156569735843de8b4c1ef779b8d8e7bf7afb33e23753792aafde2698ebe5f83bc5b1d2c1df41944400193870e465324b63063fc06b6d0e583c75ba0a6d8da2ca131e39aeef0f2fe5b30a87d512"], 0x50}}, 0x0) [ 58.419220][ T8265] IPVS: ftp: loaded support on port[0] = 21 [ 58.536132][ T8259] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.577999][ T8259] netdevsim netdevsim0 netdevsim1: renamed from eth1 01:49:37 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_int(r0, 0x6, 0x13, &(0x7f00000000c0)=0x100000001, 0x1d4) connect$inet6(r0, &(0x7f0000000140), 0x1c) setsockopt$inet6_tcp_TCP_ULP(r0, 0x6, 0x1f, &(0x7f0000000040)='tls\x00', 0x138) setsockopt$inet6_tcp_TLS_TX(r0, 0x11a, 0x2, &(0x7f0000000080)=@gcm_256={{0x303}, "2f4e5fd817b93853", "43e02f20d6537abd439fdaa1794596dcd5e0873381ceba1d92f6d6a575081754", "8598652b", "6f66393cf504a09e"}, 0x38) recvmmsg(r0, &(0x7f0000003440)=[{{0x0, 0x0, &(0x7f0000000100)=[{&(0x7f0000000300)=""/136, 0x88}], 0x1}}], 0x1, 0x17c, 0x0) [ 58.636668][ T8262] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.644339][ T8262] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.658494][ T8262] device bridge_slave_0 entered promiscuous mode [ 58.683093][ T8267] IPVS: ftp: loaded support on port[0] = 21 [ 58.689431][ T8259] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.757790][ T8259] netdevsim netdevsim0 netdevsim3: renamed from eth3 01:49:37 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000040)='net/kcm\x00\b\x00') r1 = socket$kcm(0x29, 0x2, 0x0) sendfile(r1, r0, 0x0, 0xffff7ffc) sendto(r1, &(0x7f00000000c0)="9d", 0x1, 0x0, 0x0, 0x0) [ 58.827785][ T8262] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.834883][ T8262] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.845335][ T8262] device bridge_slave_1 entered promiscuous mode [ 58.875893][ T8259] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.883105][ T8259] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.891050][ T8259] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.898169][ T8259] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.908678][ T8269] IPVS: ftp: loaded support on port[0] = 21 [ 58.995453][ T8262] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.006374][ T8262] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.035293][ T8273] IPVS: ftp: loaded support on port[0] = 21 [ 59.049876][ T47] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.060213][ T47] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.074045][ T8265] chnl_net:caif_netlink_parms(): no params data found [ 59.099795][ T8262] team0: Port device team_slave_0 added [ 59.110293][ T8262] team0: Port device team_slave_1 added [ 59.217396][ T8262] device hsr_slave_0 entered promiscuous mode [ 59.266113][ T8262] device hsr_slave_1 entered promiscuous mode [ 59.325937][ T8262] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.334349][ T8265] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.344222][ T8265] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.352822][ T8265] device bridge_slave_0 entered promiscuous mode [ 59.396684][ T8267] chnl_net:caif_netlink_parms(): no params data found [ 59.406846][ T8265] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.414016][ T8265] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.423875][ T8265] device bridge_slave_1 entered promiscuous mode [ 59.444329][ T8265] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.481174][ T8265] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.525332][ T8265] team0: Port device team_slave_0 added [ 59.532688][ T8267] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.540535][ T8267] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.548579][ T8267] device bridge_slave_0 entered promiscuous mode [ 59.560456][ T8259] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.571884][ T8262] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 59.628557][ T8265] team0: Port device team_slave_1 added [ 59.634640][ T8262] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 59.680072][ T8262] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.737924][ T8267] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.750396][ T8267] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.761745][ T8267] device bridge_slave_1 entered promiscuous mode [ 59.783722][ T8267] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.802084][ T8262] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 59.854059][ T8267] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.918595][ T8265] device hsr_slave_0 entered promiscuous mode [ 59.957328][ T8265] device hsr_slave_1 entered promiscuous mode [ 59.995877][ T8265] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.007334][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.015513][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.026084][ T8269] chnl_net:caif_netlink_parms(): no params data found [ 60.062515][ T8259] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.078966][ T8267] team0: Port device team_slave_0 added [ 60.088040][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.097045][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.105372][ T2993] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.112474][ T2993] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.157348][ T8267] team0: Port device team_slave_1 added [ 60.163214][ T8269] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.170897][ T8269] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.179191][ T8269] device bridge_slave_0 entered promiscuous mode [ 60.186895][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.195553][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.204878][ T2993] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.213033][ T2993] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.223852][ T8273] chnl_net:caif_netlink_parms(): no params data found [ 60.246316][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.254935][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.264927][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.273480][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.282397][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.291203][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.299902][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.308449][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.318071][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.335065][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.348608][ T8269] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.362730][ T8269] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.371179][ T8269] device bridge_slave_1 entered promiscuous mode [ 60.400013][ T8259] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.411138][ T47] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.431764][ T8269] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.508710][ T8267] device hsr_slave_0 entered promiscuous mode [ 60.566186][ T8267] device hsr_slave_1 entered promiscuous mode [ 60.615826][ T8267] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.634630][ T8269] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.650042][ T8273] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.667518][ T8273] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.678384][ T8273] device bridge_slave_0 entered promiscuous mode [ 60.709538][ T8265] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 60.749916][ T8265] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 60.807071][ T8273] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.814242][ T8273] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.822476][ T8273] device bridge_slave_1 entered promiscuous mode [ 60.842970][ T8273] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.856706][ T8273] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.873567][ T8265] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 60.943027][ T8269] team0: Port device team_slave_0 added [ 60.953983][ T8269] team0: Port device team_slave_1 added [ 60.962780][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.970843][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.978667][ T8265] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.042971][ T8273] team0: Port device team_slave_0 added [ 61.064021][ T8259] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.080299][ T8273] team0: Port device team_slave_1 added [ 61.087139][ T8267] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 61.148150][ T8267] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 61.237721][ T8269] device hsr_slave_0 entered promiscuous mode [ 61.296010][ T8269] device hsr_slave_1 entered promiscuous mode [ 61.345827][ T8269] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.417915][ T8273] device hsr_slave_0 entered promiscuous mode [ 61.456857][ T8273] device hsr_slave_1 entered promiscuous mode [ 61.515837][ T8273] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.526004][ T8262] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.532872][ T8267] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 61.617700][ T8267] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 61.728815][ T8269] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 166.685628][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 166.692416][ C1] rcu: 1-...!: (10499 ticks this GP) idle=5d6/1/0x4000000000000002 softirq=10892/10892 fqs=39 [ 166.702979][ C1] (t=10501 jiffies g=6369 q=185) [ 166.708222][ C1] rcu: rcu_preempt kthread starved for 10424 jiffies! g6369 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 166.719322][ C1] rcu: RCU grace-period kthread stack dump: [ 166.725213][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 166.733717][ C1] Call Trace: [ 166.737010][ C1] __schedule+0x9a0/0xcc0 [ 166.741369][ C1] schedule+0x181/0x210 [ 166.746696][ C1] schedule_timeout+0x14f/0x240 [ 166.751845][ C1] ? run_local_timers+0x120/0x120 [ 166.757264][ C1] rcu_gp_kthread+0xed8/0x1770 [ 166.766774][ C1] kthread+0x332/0x350 [ 166.774897][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 166.784058][ C1] ? kthread_blkcg+0xe0/0xe0 [ 166.791965][ C1] ret_from_fork+0x24/0x30 [ 166.796656][ C1] NMI backtrace for cpu 1 [ 166.801239][ C1] CPU: 1 PID: 629 Comm: kworker/u4:8 Not tainted 5.4.0-syzkaller #0 [ 166.811149][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 166.823455][ C1] Workqueue: events_unbound fsnotify_mark_destroy_workfn [ 166.830574][ C1] Call Trace: [ 166.833851][ C1] [ 166.836709][ C1] dump_stack+0x1fb/0x318 [ 166.841032][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 166.845879][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 166.852109][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 166.858172][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 166.864143][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 166.870023][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 166.875133][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 166.880343][ C1] ? trace_hardirqs_off+0x74/0x80 [ 166.885365][ C1] update_process_times+0x12d/0x180 [ 166.890562][ C1] tick_sched_timer+0x263/0x420 [ 166.895402][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 166.901114][ C1] __hrtimer_run_queues+0x403/0x840 [ 166.906322][ C1] hrtimer_interrupt+0x38c/0xda0 [ 166.911425][ C1] ? debug_smp_processor_id+0x9/0x20 [ 166.916708][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 166.922245][ C1] apic_timer_interrupt+0xf/0x20 [ 166.927183][ C1] [ 166.930983][ C1] RIP: 0010:free_thread_stack+0x14c/0x590 [ 166.936689][ C1] Code: 2e 00 48 89 df 31 f6 e8 42 af 6e 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 43 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 25 a4 69 00 48 8b 3b be fc ff ff [ 166.956380][ C1] RSP: 0018:ffffc900026478d8 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13 [ 166.964805][ C1] RAX: 1ffff11014dccae1 RBX: ffff8880a6e65708 RCX: 0000000000000000 [ 166.972766][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002416b80 [ 166.980988][ C1] RBP: ffffc90002647910 R08: dffffc0000000000 R09: fffffbfff120248a [ 166.988948][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880938d4b20 [ 166.997665][ C1] R13: dffffc0000000000 R14: 1ffff1101271a964 R15: ffff8880a9ed17e8 [ 167.009652][ C1] ? free_thread_stack+0x12e/0x590 [ 167.016533][ C1] put_task_stack+0xa3/0x130 [ 167.025528][ C1] finish_task_switch+0x3f1/0x550 [ 167.031186][ C1] __schedule+0x9a8/0xcc0 [ 167.036863][ C1] ? ___preempt_schedule+0x16/0x18 [ 167.043116][ C1] preempt_schedule+0xdb/0x120 [ 167.047871][ C1] ___preempt_schedule+0x16/0x18 [ 167.052998][ C1] _raw_spin_unlock_irqrestore+0xcc/0xe0 [ 167.059065][ C1] __call_srcu+0x7ab/0xb00 [ 167.063504][ C1] __synchronize_srcu+0x1cf/0x260 [ 167.068517][ C1] ? rcu_read_lock_any_held+0x1a0/0x1a0 [ 167.074061][ C1] synchronize_srcu+0x2cb/0x2f0 [ 167.078998][ C1] fsnotify_mark_destroy_workfn+0xe5/0x2a0 [ 167.085506][ C1] ? rcu_read_lock_sched_held+0x10b/0x170 [ 167.091242][ C1] process_one_work+0x7ef/0x10d0 [ 167.097143][ C1] worker_thread+0xc01/0x1630 [ 167.101921][ C1] kthread+0x332/0x350 [ 167.105975][ C1] ? rcu_lock_release+0x30/0x30 [ 167.110812][ C1] ? kthread_blkcg+0xe0/0xe0 [ 167.115486][ C1] ret_from_fork+0x24/0x30