[ 40.965461][ T23] audit: type=1800 audit(1575408428.627:27): pid=7945 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 40.984998][ T23] audit: type=1800 audit(1575408428.627:28): pid=7945 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. [ 41.666664][ T23] audit: type=1800 audit(1575408429.387:29): pid=7945 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 41.686638][ T23] audit: type=1800 audit(1575408429.387:30): pid=7945 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 '10.128.15.228' (ECDSA) to the list of known hosts. 2019/12/03 21:27:17 fuzzer started 2019/12/03 21:27:18 dialing manager at 10.128.0.26:42111 2019/12/03 21:27:18 syscalls: 2689 2019/12/03 21:27:18 code coverage: enabled 2019/12/03 21:27:18 comparison tracing: enabled 2019/12/03 21:27:18 extra coverage: extra coverage is not supported by the kernel 2019/12/03 21:27:18 setuid sandbox: enabled 2019/12/03 21:27:18 namespace sandbox: enabled 2019/12/03 21:27:18 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 21:27:18 fault injection: enabled 2019/12/03 21:27:18 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 21:27:18 net packet injection: enabled 2019/12/03 21:27:18 net device setup: enabled 2019/12/03 21:27:18 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 21:27:18 devlink PCI setup: PCI device 0000:00:10.0 is not available 21:27:19 executing program 0: r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000000100)={0x26, 'hash\x00', 0x0, 0x0, 'wp256-generic\x00'}, 0x58) r1 = accept4(r0, 0x0, 0x0, 0x0) sendmmsg$sock(r1, &(0x7f0000003440)=[{{0x0, 0x0, &(0x7f00000021c0)=[{&(0x7f0000000fc0)="0bdcc34b8a60670af061ee12a3d32c79caa64adccace901a140739b34ae2771a1d36818ca6c1ee193f8427eff2e5c5e8aa5439851d4fcb68b02e60b2c81a2db3df90aba73e04a447138b8885fb9b7f01cdffebf8220f8ef8ee05de30518069369d4db2f04f40e997ce69f970e945951611d9b7aa1fe471415361b0bd320de72e0d", 0x81}], 0x1}}], 0x1, 0x0) 21:27:19 executing program 1: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) ioctl$sock_SIOCETHTOOL(r0, 0x8946, &(0x7f0000000200)={'veth0_to_team\x00', &(0x7f0000000100)=@ethtool_dump={0x40}}) syzkaller login: [ 52.091114][ T8111] IPVS: ftp: loaded support on port[0] = 21 21:27:20 executing program 2: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x40000080806, 0x0) setsockopt$inet6_int(r0, 0x29, 0x33, &(0x7f0000000040)=0x7fb, 0x4) bind$inet6(r0, &(0x7f0000000200)={0xa, 0x404e20}, 0x1c) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, 0x0, 0x0) listen(r0, 0x400000001ffffffd) r1 = socket$inet6(0xa, 0x6, 0x0) connect$inet6(r1, &(0x7f0000000000)={0xa, 0x4e20, 0x0, @loopback}, 0x1c) getsockname$packet(0xffffffffffffffff, 0x0, 0x0) sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0) recvfrom(0xffffffffffffffff, &(0x7f0000000300)=""/252, 0xfc, 0x20000000, &(0x7f0000000400)=@can, 0x80) r2 = accept4(r0, 0x0, 0x0, 0x0) sendmmsg(r2, &(0x7f0000003d40)=[{{0x0, 0xffffffbf, 0x0, 0x0, 0x0, 0x0, 0x100000000000000}}], 0x4000000000000d0, 0x0) [ 52.223672][ T8114] IPVS: ftp: loaded support on port[0] = 21 [ 52.256912][ T8111] chnl_net:caif_netlink_parms(): no params data found [ 52.337343][ T8111] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.359608][ T8111] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.378358][ T8111] device bridge_slave_0 entered promiscuous mode [ 52.425893][ T8111] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.434096][ T8111] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.443093][ T8111] device bridge_slave_1 entered promiscuous mode [ 52.466978][ T8116] IPVS: ftp: loaded support on port[0] = 21 [ 52.486186][ T8114] chnl_net:caif_netlink_parms(): no params data found 21:27:20 executing program 3: io_setup(0x8, &(0x7f0000000180)=0x0) r1 = socket$alg(0x26, 0x5, 0x0) io_submit(r0, 0x1, &(0x7f0000000540)=[&(0x7f00000000c0)={0x0, 0x0, 0x3, 0x1, 0x0, r1, 0x0}]) [ 52.523870][ T8111] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.559049][ T8111] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.604703][ T8114] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.613135][ T8114] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.621432][ T8114] device bridge_slave_0 entered promiscuous mode [ 52.651956][ T8111] team0: Port device team_slave_0 added [ 52.658932][ T8114] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.666068][ T8114] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.675299][ T8114] device bridge_slave_1 entered promiscuous mode [ 52.688427][ T8111] team0: Port device team_slave_1 added 21:27:20 executing program 4: r0 = syz_open_dev$dri(&(0x7f0000000080)='/dev/dri/card#\x00', 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$VIDIOC_G_CROP(r1, 0xc01456b8, &(0x7f0000000000)) [ 52.800780][ T8111] device hsr_slave_0 entered promiscuous mode [ 52.858359][ T8111] device hsr_slave_1 entered promiscuous mode [ 52.942290][ T8114] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.959707][ T8114] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.984848][ T8116] chnl_net:caif_netlink_parms(): no params data found [ 52.996935][ T8120] IPVS: ftp: loaded support on port[0] = 21 21:27:20 executing program 5: r0 = socket$netlink(0x10, 0x3, 0x2000000000000c) syz_emit_ethernet(0x36, &(0x7f0000000080)={@local, @empty, [], {@ipv4={0x800, {{0x5, 0x4, 0x0, 0x0, 0x28, 0x0, 0x0, 0x0, 0x0, 0x0, @remote, @remote}, @tcp={{0x0, 0x0, 0x41424344, 0x42424242, 0x0, 0x0, 0x5}}}}}}, 0x0) writev(r0, &(0x7f0000fb5ff0)=[{&(0x7f0000000080)="1f00000010001900000007000000068100020a0009000100000000013ffe58", 0xff33}], 0x58) [ 53.063901][ T8114] team0: Port device team_slave_0 added [ 53.079877][ T8114] team0: Port device team_slave_1 added [ 53.094088][ T8111] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.171024][ T8111] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.221944][ T8111] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.274661][ T8122] IPVS: ftp: loaded support on port[0] = 21 [ 53.287951][ T8116] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.295158][ T8116] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.305752][ T8116] device bridge_slave_0 entered promiscuous mode [ 53.316335][ T8111] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.401654][ T8116] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.409486][ T8116] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.417282][ T8116] device bridge_slave_1 entered promiscuous mode [ 53.419099][ T8124] IPVS: ftp: loaded support on port[0] = 21 [ 53.460215][ T8116] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.473356][ T8116] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.531045][ T8114] device hsr_slave_0 entered promiscuous mode [ 53.578313][ T8114] device hsr_slave_1 entered promiscuous mode [ 53.658158][ T8114] debugfs: Directory 'hsr0' with parent '/' already present! [ 53.691972][ T8116] team0: Port device team_slave_0 added [ 53.711219][ T8116] team0: Port device team_slave_1 added [ 53.801205][ T8116] device hsr_slave_0 entered promiscuous mode [ 53.858468][ T8116] device hsr_slave_1 entered promiscuous mode [ 53.928106][ T8116] debugfs: Directory 'hsr0' with parent '/' already present! [ 54.006735][ T8114] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 54.051857][ T8114] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 54.099692][ T8114] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 54.172800][ T8120] chnl_net:caif_netlink_parms(): no params data found [ 54.206316][ T8114] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 54.229943][ T8116] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 54.271687][ T8116] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 54.358839][ T8116] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 54.396253][ T8116] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 54.450498][ T8122] chnl_net:caif_netlink_parms(): no params data found [ 54.482585][ T8120] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.490606][ T8120] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.499051][ T8120] device bridge_slave_0 entered promiscuous mode [ 54.515015][ T8111] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.534270][ T8120] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.542035][ T8120] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.550468][ T8120] device bridge_slave_1 entered promiscuous mode [ 54.581522][ T8124] chnl_net:caif_netlink_parms(): no params data found [ 54.595577][ T8122] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.602785][ T8122] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.611654][ T8122] device bridge_slave_0 entered promiscuous mode [ 54.622175][ T8122] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.629376][ T8122] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.636940][ T8122] device bridge_slave_1 entered promiscuous mode [ 54.660668][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 54.672286][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.683142][ T8111] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.691483][ T8120] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.703079][ T8120] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.733548][ T8124] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.740716][ T8124] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.748471][ T8124] device bridge_slave_0 entered promiscuous mode [ 54.767244][ T8122] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.779949][ T8122] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.801374][ T8124] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.808587][ T8124] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.816197][ T8124] device bridge_slave_1 entered promiscuous mode [ 54.832083][ T8120] team0: Port device team_slave_0 added [ 54.839976][ T8120] team0: Port device team_slave_1 added [ 54.867260][ T1108] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 54.876497][ T1108] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.885191][ T1108] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.892359][ T1108] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.900948][ T1108] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 54.926652][ T8116] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.936577][ T8124] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.948598][ T8122] team0: Port device team_slave_0 added [ 54.955772][ T8122] team0: Port device team_slave_1 added [ 54.992530][ T8120] device hsr_slave_0 entered promiscuous mode [ 55.038485][ T8120] device hsr_slave_1 entered promiscuous mode [ 55.098168][ T8120] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.113728][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 55.122789][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.131304][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.138383][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.157682][ T8116] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.169048][ T8124] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.193062][ T8114] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.207211][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.216617][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.225309][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.234087][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.242167][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 55.250893][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.311299][ T8122] device hsr_slave_0 entered promiscuous mode [ 55.359263][ T8122] device hsr_slave_1 entered promiscuous mode [ 55.388204][ T8122] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.410453][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.418611][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 55.427085][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 55.435621][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 55.444930][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.453665][ T2991] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.460853][ T2991] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.468509][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 55.476710][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.484963][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 55.493436][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.502047][ T2991] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.509145][ T2991] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.517295][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 55.525706][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.534048][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.543266][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.551126][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.559811][ T8111] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 55.569087][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 55.577018][ T2991] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.592938][ T8124] team0: Port device team_slave_0 added [ 55.601273][ T8124] team0: Port device team_slave_1 added [ 55.608321][ T8114] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.638302][ T1108] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 55.646790][ T1108] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.655565][ T1108] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.662690][ T1108] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.670504][ T1108] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 55.690712][ T8120] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 55.753966][ T8120] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 55.828198][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 55.838202][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.846480][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.853576][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.861504][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 55.870260][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.878774][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.887121][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 55.895675][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 55.904039][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.912550][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 55.920992][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.929210][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 55.937521][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.946175][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 55.954521][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.963058][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.970849][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.981821][ T8116] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 55.995964][ T8120] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 56.021234][ T8122] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 56.090135][ T8122] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 56.136893][ T1108] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.146137][ T1108] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.200775][ T8124] device hsr_slave_0 entered promiscuous mode [ 56.248491][ T8124] device hsr_slave_1 entered promiscuous mode [ 56.308175][ T8124] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.316393][ T8120] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 56.369991][ T8122] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 56.410701][ T8122] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 56.442844][ T8111] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.453024][ T1108] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.461746][ T1108] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.470244][ T1108] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 56.479019][ T1108] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.510373][ T8114] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 56.522480][ T8114] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.560335][ T8125] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 56.578927][ T8125] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.587042][ T8125] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.595117][ T8125] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.615968][ T8116] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.627198][ T8124] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 56.669614][ T8124] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 56.720187][ T8124] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 56.783621][ T8124] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 161.817986][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 161.824980][ C1] (detected by 1, t=10502 jiffies, g=6037, q=184) [ 161.831553][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294953332-4294942830), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 161.844894][ C1] syz-executor.0 R running task 27912 8131 8111 0x80004008 [ 161.852783][ C1] Call Trace: [ 161.856052][ C1] [ 161.858899][ C1] sched_show_task+0x40f/0x560 [ 161.863654][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 161.868934][ C1] update_process_times+0x12d/0x180 [ 161.874120][ C1] tick_sched_timer+0x263/0x420 [ 161.878954][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 161.884485][ C1] __hrtimer_run_queues+0x403/0x840 [ 161.889684][ C1] hrtimer_interrupt+0x38c/0xda0 [ 161.894624][ C1] ? debug_smp_processor_id+0x9/0x20 [ 161.899906][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 161.905434][ C1] apic_timer_interrupt+0xf/0x20 [ 161.910353][ C1] [ 161.913277][ C1] RIP: 0010:__memcg_kmem_uncharge+0x10/0x2e0 [ 161.919243][ C1] Code: 02 00 00 48 89 df 4c 89 f6 e8 dc 7d ff ff 5b 41 5e 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 50 89 f3 <49> 89 fc 48 b8 00 00 00 00 00 fc ff df 4c 8d 77 38 4d 89 f5 49 c1 [ 161.938831][ C1] RSP: 0018:ffffc900022c76d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 161.947223][ C1] RAX: ffffffff81486ea4 RBX: 0000000000000000 RCX: ffff8880a8844680 [ 161.955182][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002588340 [ 161.963138][ C1] RBP: ffffc900022c7700 R08: dffffc0000000000 R09: fffffbfff12877ed [ 161.971098][ C1] R10: fffffbfff12877ed R11: 0000000000000000 R12: ffff88808cc848a0 [ 161.979055][ C1] R13: dffffc0000000000 R14: 1ffff11011990914 R15: ffff8880a91a3428 [ 161.987021][ C1] ? free_thread_stack+0x124/0x590 [ 161.992121][ C1] ? free_thread_stack+0x124/0x590 [ 161.997221][ C1] free_thread_stack+0x12e/0x590 [ 162.002148][ C1] put_task_stack+0xa3/0x130 [ 162.006725][ C1] finish_task_switch+0x3f1/0x550 [ 162.011737][ C1] __schedule+0x9a8/0xcc0 [ 162.016059][ C1] ? ___preempt_schedule+0x16/0x18 [ 162.021156][ C1] preempt_schedule+0xdb/0x120 [ 162.025905][ C1] ___preempt_schedule+0x16/0x18 [ 162.030832][ C1] __mutex_lock_common+0x50c/0x2e10 [ 162.036016][ C1] ? perf_event_exit_task+0x4e/0x2280 [ 162.041370][ C1] ? validate_chain+0x92/0x7bc0 [ 162.046202][ C1] ? validate_chain+0x92/0x7bc0 [ 162.051045][ C1] ? mark_lock+0x107/0x1650 [ 162.055538][ C1] mutex_lock_nested+0x1b/0x30 [ 162.060300][ C1] perf_event_exit_task+0x4e/0x2280 [ 162.065499][ C1] ? __lock_acquire+0xc75/0x1be0 [ 162.070440][ C1] ? task_work_run+0x139/0x1b0 [ 162.075192][ C1] ? check_preemption_disabled+0x44/0x260 [ 162.080892][ C1] ? debug_smp_processor_id+0x9/0x20 [ 162.086167][ C1] ? rcu_read_lock_sched_held+0x10b/0x170 [ 162.091872][ C1] ? trace_x86_fpu_dropped+0x251/0x290 [ 162.097328][ C1] ? fpu__drop+0x77/0x90 [ 162.101572][ C1] do_exit+0x60d/0x2020 [ 162.105726][ C1] do_group_exit+0x15c/0x2b0 [ 162.110319][ C1] __do_sys_exit_group+0x17/0x20 [ 162.115240][ C1] __se_sys_exit_group+0x14/0x20 [ 162.120163][ C1] __x64_sys_exit_group+0x3b/0x40 [ 162.125175][ C1] do_syscall_64+0xf7/0x1c0 [ 162.129676][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 162.135552][ C1] RIP: 0033:0x45a679 [ 162.139435][ C1] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 162.159040][ C1] RSP: 002b:00007fffdc163198 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 162.167441][ C1] RAX: ffffffffffffffda RBX: 000000000000001e RCX: 000000000045a679 [ 162.175401][ C1] RDX: 0000000000414211 RSI: fffffffffffffff7 RDI: 0000000000000000 [ 162.183362][ C1] RBP: 0000000000000000 R08: ffffffffffffffff R09: 00007fffdc1631f0 [ 162.191317][ C1] R10: 0000000000760538 R11: 0000000000000246 R12: 0000000000000001 [ 162.199274][ C1] R13: 00007fffdc1631f0 R14: 0000000000000000 R15: 00007fffdc163200 [ 162.207256][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g6037 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 162.218357][ C1] rcu: RCU grace-period kthread stack dump: [ 162.224263][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 162.232177][ C1] Call Trace: [ 162.235464][ C1] __schedule+0x9a0/0xcc0 [ 162.239804][ C1] schedule+0x181/0x210 [ 162.243950][ C1] schedule_timeout+0x14f/0x240 [ 162.248787][ C1] ? run_local_timers+0x120/0x120 [ 162.253802][ C1] rcu_gp_kthread+0xed8/0x1770 [ 162.258575][ C1] kthread+0x332/0x350 [ 162.262628][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 162.267724][ C1] ? kthread_blkcg+0xe0/0xe0 [ 162.272300][ C1] ret_from_fork+0x24/0x30