[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 56.848116][ T26] audit: type=1800 audit(1578465278.921:25): pid=8591 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 56.868554][ T26] audit: type=1800 audit(1578465278.921:26): pid=8591 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 56.918946][ T26] audit: type=1800 audit(1578465278.921:27): pid=8591 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 '10.128.0.142' (ECDSA) to the list of known hosts. 2020/01/08 06:34:50 fuzzer started 2020/01/08 06:34:51 dialing manager at 10.128.0.26:35703 2020/01/08 06:34:51 syscalls: 2824 2020/01/08 06:34:51 code coverage: enabled 2020/01/08 06:34:51 comparison tracing: enabled 2020/01/08 06:34:51 extra coverage: enabled 2020/01/08 06:34:51 setuid sandbox: enabled 2020/01/08 06:34:51 namespace sandbox: enabled 2020/01/08 06:34:51 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 06:34:51 fault injection: enabled 2020/01/08 06:34:51 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 06:34:51 net packet injection: enabled 2020/01/08 06:34:51 net device setup: enabled 2020/01/08 06:34:51 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 06:34:51 devlink PCI setup: PCI device 0000:00:10.0 is not available 06:34:52 executing program 0: syz_emit_ethernet(0x7a, &(0x7f0000000000)={@broadcast, @link_local={0x1, 0x80, 0xc2, 0x689, 0x3}, @val, {@ipv6}}, 0x0) r0 = ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r0, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text32={0x20, 0x0}], 0x1, 0x0, 0x0, 0x0) r1 = socket$inet_udp(0x2, 0x2, 0x0) close(r1) socket$inet6(0xa, 0x1, 0x8010000000000084) r2 = syz_open_dev$sndmidi(&(0x7f0000000080)='/dev/snd/midiC#D#\x00', 0x8, 0x286200) read(r2, 0x0, 0x23b) openat$vcs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/vcs\x00', 0x802, 0x0) r3 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_inet_SIOCSIFFLAGS(0xffffffffffffffff, 0x8914, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 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, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x4}, 0x432, 0x0, 0x0, 0x0, 0x81}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r4 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000000)={'lo\x00', 0x0}) r6 = syz_open_procfs(0x0, &(0x7f00000000c0)='auxv\x00') preadv(r6, &(0x7f0000001400)=[{&(0x7f0000000040)=""/113, 0x200000b1}], 0x1, 0x0) bind$packet(r6, &(0x7f0000000040)={0x11, 0x3, r5, 0x1, 0x0, 0x6, @random="309ed9a7abab"}, 0x14) futex(&(0x7f00000024c0), 0x8b, 0x2, &(0x7f0000002500), &(0x7f0000002540), 0x1) setsockopt$IP_VS_SO_SET_ADD(r3, 0x0, 0x482, &(0x7f0000000080)={0x84, @initdev={0xac, 0x1e, 0x0, 0x0}, 0x0, 0x0, 'wrr\x00', 0x2d, 0xffffffffffffff8f, 0x55}, 0x2c) r7 = socket$inet_udp(0x2, 0x2, 0x0) ioctl$sock_inet_SIOCADDRT(r7, 0x890b, &(0x7f0000000180)={0x0, {0x2, 0x4e22, @empty}, {0x2, 0x4e20, @loopback}, {0x2, 0x4e24, @empty}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xff, 0x0, 0x40}) ioctl$sock_inet_SIOCADDRT(r7, 0x890b, &(0x7f0000000100)={0x0, {0x2, 0x4e22, @local}, {0x2, 0x4e22, @rand_addr=0x7}, {0x2, 0x4e21, @dev={0xac, 0x14, 0x14, 0x14}}, 0x20, 0x0, 0x0, 0x0, 0x3e91, &(0x7f0000000000)='vxcan1\x00', 0x6, 0xffffffffffffffff, 0x1f}) ioctl$sock_inet_SIOCADDRT(r7, 0x890b, &(0x7f0000000080)={0x750, {0x2, 0x0, @dev={0xac, 0x2}}, {0x2, 0x0, @remote}, {0x2, 0x0, @broadcast}, 0x0, 0x0, 0x2, 0x46a}) setsockopt$IP_VS_SO_SET_ZERO(r7, 0x0, 0x48f, &(0x7f0000001240)={0x84, @local, 0x4e20, 0x4, 'none\x00', 0x17, 0x1f, 0x5b}, 0x8b) lsetxattr$security_smack_transmute(&(0x7f00000004c0)='./file0\x00', &(0x7f0000000480)='security.SMACK64TRANSMUTE\x00', &(0x7f0000002440)='TRUE', 0x4, 0x4) ioctl$SNDRV_TIMER_IOCTL_PVERSION(r3, 0x80045400, &(0x7f00000012c0)) socketpair(0x3, 0x2, 0x2, &(0x7f0000000080)) r8 = openat$null(0xffffffffffffff9c, 0x0, 0x204d00, 0x0) setsockopt$inet_tcp_TCP_ULP(r8, 0x6, 0x1f, &(0x7f0000000040)='tls\x00', 0x4) ioctl$SNDRV_SEQ_IOCTL_GET_QUEUE_INFO(r8, 0xc08c5334, &(0x7f0000000240)={0x800000000c, 0x9, 0x7fffffff, 'queue0\x00', 0x7fe}) 06:34:52 executing program 1: perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x1f, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(0xffffffffffffffff, 0x1, 0xf, 0x0, 0x0) socket$inet_tcp(0x2, 0x1, 0x0) r0 = socket$kcm(0x29, 0x0, 0x0) sendmsg$kcm(r0, &(0x7f0000000040)={0x0, 0x0, 0x0}, 0x0) syz_open_procfs(0x0, &(0x7f0000000000)='ns\x00') syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='ns\x00') syz_open_procfs(0x0, &(0x7f0000000000)='ns\x00') r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='ns\x00') renameat2(r1, &(0x7f0000000080)='./file0\x00', 0xffffffffffffffff, &(0x7f00000001c0)='./file0\x00', 0x0) r2 = socket$inet6_sctp(0xa, 0x5, 0x84) getsockopt$inet_sctp_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) getsockopt$inet_sctp6_SCTP_PEER_ADDR_THLDS(r2, 0x84, 0x1f, &(0x7f00000000c0)={r3, @in={{0xa, 0x0, @empty}}}, &(0x7f0000000040)=0x90) getsockopt$inet_sctp_SCTP_MAXSEG(r1, 0x84, 0xd, 0x0, &(0x7f0000000580)) r4 = syz_open_procfs(0x0, &(0x7f0000000000)='ns\x00') renameat2(0xffffffffffffffff, &(0x7f0000000080)='./file0\x00', r4, &(0x7f00000001c0)='./file0\x00', 0x0) r5 = socket(0x40000000015, 0x5, 0x0) close(r5) r6 = socket$inet6_sctp(0xa, 0x5, 0x84) connect$inet6(r6, &(0x7f0000d83fe4)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) getsockopt$inet_sctp6_SCTP_GET_ASSOC_ID_LIST(r6, 0x84, 0x1d, &(0x7f000095dff8)=ANY=[@ANYBLOB="01933a", @ANYRES32=0x0], &(0x7f0000000180)=0x2) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF(r5, 0x84, 0x66, &(0x7f0000000000)={r7}, 0x0) getsockopt$inet_sctp6_SCTP_PR_ASSOC_STATUS(0xffffffffffffffff, 0x84, 0x73, &(0x7f00000005c0)={r7, 0x8, 0x0, 0x6, 0x9}, &(0x7f0000000600)=0x18) r8 = socket(0x40000000015, 0x5, 0x0) close(r8) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(0xffffffffffffffff, 0x84, 0x64, &(0x7f0000cf6fe4), 0x0) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF(r8, 0x84, 0x66, &(0x7f0000000000)={0x0, 0xfffffffe}, &(0x7f00000000c0)=0x3) r9 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240)='/dev/kvm\x00', 0x0, 0x0) r10 = ioctl$KVM_CREATE_VM(r9, 0xae01, 0x0) ioctl$KVM_CREATE_VCPU(r10, 0xae41, 0x0) syzkaller login: [ 70.567599][ T8758] IPVS: ftp: loaded support on port[0] = 21 [ 70.712395][ T8758] chnl_net:caif_netlink_parms(): no params data found [ 70.763762][ T8758] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.773821][ T8758] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.782466][ T8758] device bridge_slave_0 entered promiscuous mode [ 70.793307][ T8758] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.800968][ T8758] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.810213][ T8758] device bridge_slave_1 entered promiscuous mode [ 70.836875][ T8758] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.850217][ T8758] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 06:34:53 executing program 2: r0 = socket$netlink(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000180)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) sendmsg$nl_route(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000001c00)=@newlink={0x50, 0x10, 0x705, 0x0, 0x0, {}, [@IFLA_OPERSTATE={0x8, 0xa, 0xdb2e}, @IFLA_LINKINFO={0x28, 0x12, @ip6gre={{0xc, 0x1, 'ip6gre\x00'}, {0x18, 0x2, [@IFLA_GRE_REMOTE={0x14, 0x7, @rand_addr="32c6e6b6cb33cabacf730a75781fdb13"}]}}}]}, 0x50}}, 0x0) [ 70.877925][ T8758] team0: Port device team_slave_0 added [ 70.879360][ T8761] IPVS: ftp: loaded support on port[0] = 21 [ 70.886612][ T8758] team0: Port device team_slave_1 added [ 70.958244][ T8758] device hsr_slave_0 entered promiscuous mode [ 71.035544][ T8758] device hsr_slave_1 entered promiscuous mode 06:34:53 executing program 3: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket(0x1e, 0x4, 0x0) setsockopt$TIPC_DEST_DROPPABLE(r2, 0x10f, 0x81, &(0x7f0000000000), 0x4) sendmsg$tipc(r2, &(0x7f0000003600)={&(0x7f0000000080)=@name={0x1e, 0x2, 0x0, {{0x1, 0x1}}}, 0x10, 0x0}, 0x0) recvmmsg(r2, &(0x7f0000000880)=[{{0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000140)=""/76, 0x4c}], 0x1, &(0x7f00000002c0)=""/69, 0x45}}], 0x1, 0x0, 0x0) [ 71.173338][ T8763] IPVS: ftp: loaded support on port[0] = 21 [ 71.382769][ T8761] chnl_net:caif_netlink_parms(): no params data found 06:34:53 executing program 4: unshare(0x400) r0 = openat$sequencer2(0xffffffffffffff9c, &(0x7f0000000040)='/dev/sequencer2\x00', 0x0, 0x0) ioctl$KDGKBLED(r0, 0xc08c5102, &(0x7f0000000100)) [ 71.450966][ T8766] IPVS: ftp: loaded support on port[0] = 21 [ 71.460040][ T8758] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.550880][ T8758] netdevsim netdevsim0 netdevsim1: renamed from eth1 06:34:53 executing program 5: syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000080)='./file0\x00', 0x0, 0x1, &(0x7f0000000000)=[{&(0x7f0000000140)="25bca274769e620a2734fa0095e0612687ecb86a5c8802a9d8aea872943afd874e2f98b579a7086270146d0e0206e73ba8c63cd7dcc6760253ef", 0x3a, 0x400}], 0x0, &(0x7f0000000380)={[{@init_itable_val={'init_itable'}}, {@resgid={'resgid'}}]}) [ 71.688210][ T8758] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.768261][ T8758] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.852377][ T8763] chnl_net:caif_netlink_parms(): no params data found [ 71.881480][ T8771] IPVS: ftp: loaded support on port[0] = 21 [ 71.911419][ T8761] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.919802][ T8761] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.927881][ T8761] device bridge_slave_0 entered promiscuous mode [ 71.949782][ T8769] IPVS: ftp: loaded support on port[0] = 21 [ 71.964915][ T8761] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.972312][ T8761] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.980600][ T8761] device bridge_slave_1 entered promiscuous mode [ 72.039533][ T8761] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.062686][ T8763] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.070798][ T8763] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.079612][ T8763] device bridge_slave_0 entered promiscuous mode [ 72.088693][ T8763] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.096066][ T8763] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.103868][ T8763] device bridge_slave_1 entered promiscuous mode [ 72.114417][ T8761] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.169666][ T8763] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.181675][ T8761] team0: Port device team_slave_0 added [ 72.217815][ T8763] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.236720][ T8761] team0: Port device team_slave_1 added [ 72.314689][ T8763] team0: Port device team_slave_0 added [ 72.324342][ T8771] chnl_net:caif_netlink_parms(): no params data found [ 72.334759][ T8766] chnl_net:caif_netlink_parms(): no params data found [ 72.352078][ T8758] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.371817][ T8763] team0: Port device team_slave_1 added [ 72.418222][ T8761] device hsr_slave_0 entered promiscuous mode [ 72.455605][ T8761] device hsr_slave_1 entered promiscuous mode [ 72.496058][ T8761] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 72.503990][ T8761] Cannot create hsr debugfs directory [ 72.608425][ T8763] device hsr_slave_0 entered promiscuous mode [ 72.665654][ T8763] device hsr_slave_1 entered promiscuous mode [ 72.725307][ T8763] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 72.733222][ T8763] Cannot create hsr debugfs directory [ 72.820104][ T8771] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.827628][ T8771] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.837132][ T8771] device bridge_slave_0 entered promiscuous mode [ 72.863368][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 72.873932][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.888387][ T8769] chnl_net:caif_netlink_parms(): no params data found [ 72.898294][ T8766] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.906478][ T8766] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.914348][ T8766] device bridge_slave_0 entered promiscuous mode [ 72.922261][ T8771] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.930002][ T8771] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.938320][ T8771] device bridge_slave_1 entered promiscuous mode [ 72.959274][ T8758] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.977868][ T8766] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.985779][ T8766] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.993687][ T8766] device bridge_slave_1 entered promiscuous mode [ 73.012341][ T8771] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.049110][ T8771] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.072062][ T8766] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.086292][ T8766] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.125233][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.134112][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.146589][ T2703] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.155558][ T2703] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.164858][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.174091][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.182811][ T2703] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.190175][ T2703] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.197903][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 73.209609][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 73.230411][ T8766] team0: Port device team_slave_0 added [ 73.242863][ T8771] team0: Port device team_slave_0 added [ 73.266327][ T3034] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 73.276724][ T8769] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.284060][ T8769] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.293487][ T8769] device bridge_slave_0 entered promiscuous mode [ 73.302763][ T8766] team0: Port device team_slave_1 added [ 73.335625][ T8771] team0: Port device team_slave_1 added [ 73.357161][ T8769] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.364307][ T8769] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.374579][ T8769] device bridge_slave_1 entered promiscuous mode [ 73.393526][ T2775] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 73.403259][ T2775] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.412211][ T2775] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 73.423278][ T2775] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.432088][ T2775] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.441629][ T8761] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 73.480360][ T8761] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 73.538550][ T8761] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 73.579810][ T8769] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.593980][ T8769] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.614518][ T8763] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 73.658017][ T8763] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 73.713067][ T8761] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 73.807160][ T8771] device hsr_slave_0 entered promiscuous mode [ 73.855582][ T8771] device hsr_slave_1 entered promiscuous mode [ 73.905298][ T8771] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 73.912934][ T8771] Cannot create hsr debugfs directory [ 73.921127][ T8763] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 73.978974][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.988168][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.027099][ T8766] device hsr_slave_0 entered promiscuous mode [ 74.085654][ T8766] device hsr_slave_1 entered promiscuous mode [ 74.136336][ T8766] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 74.143939][ T8766] Cannot create hsr debugfs directory [ 74.166760][ T8769] team0: Port device team_slave_0 added [ 74.172767][ T8763] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 74.211583][ T8758] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.224050][ T8758] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.251350][ T8769] team0: Port device team_slave_1 added [ 74.259443][ T2702] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.268542][ T2702] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.336182][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.336317][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.369371][ T8758] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.459111][ T8769] device hsr_slave_0 entered promiscuous mode [ 74.515665][ T8769] device hsr_slave_1 entered promiscuous mode [ 74.555296][ T8769] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 74.562964][ T8769] Cannot create hsr debugfs directory [ 74.623385][ T8771] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 74.687192][ T8771] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 74.739020][ T8771] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 74.811140][ T8771] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 74.897750][ T2702] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.907234][ T2702] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.928268][ T8763] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.946886][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.955669][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.964081][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.972461][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.002648][ T8758] device veth0_vlan entered promiscuous mode [ 75.012064][ T2775] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.020657][ T2775] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.033855][ T8766] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 75.101456][ T8766] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 75.158345][ T8766] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 75.230771][ T8763] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.244057][ T8758] device veth1_vlan entered promiscuous mode [ 75.258436][ T8766] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 75.300887][ T2775] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.309797][ T2775] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.318339][ T2775] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.325547][ T2775] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.344096][ T8761] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.363753][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.372471][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.380289][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.407918][ T8761] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.416325][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.432647][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.441301][ T2703] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.448461][ T2703] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.503716][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.513256][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.522677][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.531332][ T2703] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.538539][ T2703] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.547325][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.556006][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.564805][ T2703] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.572261][ T2703] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.580270][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.589021][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.598123][ T2703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.624607][ T8763] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 75.658911][ T8763] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.677374][ T8769] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 180.695076][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 180.702069][ C1] rcu: 1-...!: (10500 ticks this GP) idle=02a/1/0x4000000000000002 softirq=14789/14789 fqs=143 [ 180.712774][ C1] (t=10500 jiffies g=7405 q=115) [ 180.717973][ C1] rcu: rcu_preempt kthread starved for 10206 jiffies! g7405 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 180.729163][ C1] rcu: RCU grace-period kthread stack dump: [ 180.735400][ C1] rcu_preempt R running task 28984 10 2 0x80004000 [ 180.743465][ C1] Call Trace: [ 180.746754][ C1] __schedule+0x9a0/0xcc0 [ 180.751083][ C1] schedule+0x181/0x210 [ 180.755320][ C1] schedule_timeout+0x14f/0x240 [ 180.760170][ C1] ? run_local_timers+0x120/0x120 [ 180.765278][ C1] rcu_gp_kthread+0xed8/0x1770 [ 180.770043][ C1] kthread+0x332/0x350 [ 180.774097][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 180.779373][ C1] ? kthread_blkcg+0xe0/0xe0 [ 180.783953][ C1] ret_from_fork+0x24/0x30 [ 180.788374][ C1] NMI backtrace for cpu 1 [ 180.792768][ C1] CPU: 1 PID: 8763 Comm: syz-executor.2 Not tainted 5.5.0-rc5-syzkaller #0 [ 180.801341][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 180.811394][ C1] Call Trace: [ 180.814841][ C1] [ 180.818412][ C1] dump_stack+0x1fb/0x318 [ 180.822836][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 180.827676][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 180.833818][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 180.839887][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 180.845949][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 180.851828][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 180.856934][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 180.862133][ C1] ? trace_hardirqs_off+0x74/0x80 [ 180.867154][ C1] update_process_times+0x12d/0x180 [ 180.872716][ C1] tick_sched_timer+0x263/0x420 [ 180.877557][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 180.883102][ C1] __hrtimer_run_queues+0x403/0x840 [ 180.888313][ C1] hrtimer_interrupt+0x38c/0xda0 [ 180.893259][ C1] ? debug_smp_processor_id+0x9/0x20 [ 180.898536][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 180.904073][ C1] apic_timer_interrupt+0xf/0x20 [ 180.909011][ C1] [ 180.911970][ C1] RIP: 0010:mod_memcg_page_state+0x6/0x190 [ 180.918296][ C1] Code: 60 00 eb 0c e8 eb 27 2e 00 eb 05 e8 e4 27 2e 00 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 55 48 89 e5 41 57 <41> 56 41 54 53 41 89 f6 48 89 fb e8 ba 27 2e 00 48 83 c3 38 48 89 [ 180.938372][ C1] RSP: 0018:ffffc90001dd75a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 180.947243][ C1] RAX: 1ffff11011bd3cd1 RBX: ffff88808de9e688 RCX: 0000000000000000 [ 180.955412][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea000275a340 [ 180.963385][ C1] RBP: ffffc90001dd75a8 R08: dffffc0000000000 R09: fffffbfff124248a [ 180.971438][ C1] R10: fffffbfff124248a R11: 0000000000000000 R12: ffff88808de9e720 [ 180.979424][ C1] R13: dffffc0000000000 R14: 1ffff11011bd3ce4 R15: ffff8880a843d8b8 [ 180.987444][ C1] free_thread_stack+0x168/0x590 [ 180.992477][ C1] put_task_stack+0xa3/0x130 [ 180.997063][ C1] finish_task_switch+0x3f1/0x550 [ 181.002181][ C1] __schedule+0x9a8/0xcc0 [ 181.006696][ C1] preempt_schedule_irq+0xc1/0x140 [ 181.011965][ C1] retint_kernel+0x1b/0x2b [ 181.016388][ C1] RIP: 0010:update_stack_state+0x4ad/0x530 [ 181.022206][ C1] Code: ee 7d 00 48 8b 5d c8 4c 8b 75 c0 eb 1d 4c 89 e8 48 c1 e8 03 80 3c 18 00 4c 8b 75 c0 74 08 4c 89 ef e8 97 ee 7d 00 49 8b 5d 00 <49> 83 c4 48 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 [ 181.041832][ C1] RSP: 0018:ffffc90001dd7800 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 181.050252][ C1] RAX: 1ffff920003bafe3 RBX: ffffffff810079c7 RCX: 1ffff920003baf2c [ 181.058224][ C1] RDX: ffffc90001dd7f20 RSI: 1ffff920003baf2e RDI: ffffc90001dd7960 [ 181.066191][ C1] RBP: ffffc90001dd78a8 R08: ffffffff8165c2fd R09: ffffc90001dd7960 [ 181.074151][ C1] R10: fffff520003baf38 R11: 0000000000000000 R12: ffffc90001dd7960 [ 181.082115][ C1] R13: ffffc90001dd7f18 R14: ffffc90001dd79a0 R15: 1ffff920003baf34 [ 181.090186][ C1] ? do_syscall_64+0xf7/0x1c0 [ 181.095615][ C1] ? stack_trace_consume_entry+0x17d/0x260 [ 181.101444][ C1] unwind_next_frame+0x3f1/0x7a0 [ 181.106375][ C1] ? __unwind_start+0x36a/0x440 [ 181.111305][ C1] ? stack_trace_save+0x150/0x150 [ 181.116332][ C1] arch_stack_walk+0xb4/0xe0 [ 181.120919][ C1] ? __x64_sys_socket+0x7a/0x90 [ 181.125761][ C1] stack_trace_save+0xb6/0x150 [ 181.130520][ C1] __kasan_kmalloc+0x11c/0x1b0 [ 181.135273][ C1] ? __kasan_kmalloc+0x11c/0x1b0 [ 181.140236][ C1] ? kasan_slab_alloc+0xf/0x20 [ 181.145004][ C1] ? kmem_cache_alloc+0x1f5/0x2e0 [ 181.150192][ C1] ? __alloc_file+0x2c/0x390 [ 181.154771][ C1] ? alloc_empty_file+0xac/0x1b0 [ 181.159696][ C1] ? alloc_file+0x60/0x4c0 [ 181.164118][ C1] ? alloc_file_pseudo+0x1d4/0x260 [ 181.169251][ C1] ? sock_alloc_file+0xbb/0x260 [ 181.174090][ C1] ? __sys_socket+0x14b/0x2e0 [ 181.178795][ C1] ? __x64_sys_socket+0x7a/0x90 [ 181.183678][ C1] ? __lock_acquire+0xc75/0x1be0 [ 181.188629][ C1] ? rcu_lock_release+0x4/0x20 [ 181.195311][ C1] ? rcu_lock_release+0x4/0x20 [ 181.200120][ C1] ? kmem_cache_alloc+0x194/0x2e0 [ 181.205429][ C1] kasan_slab_alloc+0xf/0x20 [ 181.210195][ C1] kmem_cache_alloc+0x1f5/0x2e0 [ 181.215040][ C1] ? __alloc_file+0x2c/0x390 [ 181.219627][ C1] __alloc_file+0x2c/0x390 [ 181.224125][ C1] alloc_empty_file+0xac/0x1b0 [ 181.229014][ C1] alloc_file+0x60/0x4c0 [ 181.233693][ C1] alloc_file_pseudo+0x1d4/0x260 [ 181.238653][ C1] sock_alloc_file+0xbb/0x260 [ 181.243499][ C1] __sys_socket+0x14b/0x2e0 [ 181.247999][ C1] __x64_sys_socket+0x7a/0x90 [ 181.252684][ C1] do_syscall_64+0xf7/0x1c0 [ 181.257183][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 181.263757][ C1] RIP: 0033:0x45da97 [ 181.267660][ C1] Code: 00 00 00 49 89 ca b8 36 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 4a 8b fb ff c3 66 0f 1f 84 00 00 00 00 00 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 2d 8b fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 181.287343][ C1] RSP: 002b:00007ffe9a92edb8 EFLAGS: 00000202 ORIG_RAX: 0000000000000029 [ 181.295757][ C1] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045da97 [ 181.303909][ C1] RDX: 0000000000000000 RSI: 0000000000080002 RDI: 0000000000000001 [ 181.311871][ C1] RBP: 00000000004c0426 R08: 00007ffe9a92ee43 R09: 000000000000000f [ 181.320039][ C1] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000003 [ 181.328016][ C1] R13: 0000000000000000 R14: 0000000000000006 R15: 00007ffe9a92f180