[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 46.588065][ T23] audit: type=1800 audit(1575384545.303:25): pid=8091 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 46.607087][ T23] audit: type=1800 audit(1575384545.313:26): pid=8091 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 46.628142][ T23] audit: type=1800 audit(1575384545.313:27): pid=8091 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 '10.128.15.202' (ECDSA) to the list of known hosts. 2019/12/03 14:49:16 fuzzer started 2019/12/03 14:49:18 dialing manager at 10.128.0.26:45711 2019/12/03 14:49:18 syscalls: 2689 2019/12/03 14:49:18 code coverage: enabled 2019/12/03 14:49:18 comparison tracing: enabled 2019/12/03 14:49:18 extra coverage: extra coverage is not supported by the kernel 2019/12/03 14:49:18 setuid sandbox: enabled 2019/12/03 14:49:18 namespace sandbox: enabled 2019/12/03 14:49:18 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 14:49:18 fault injection: enabled 2019/12/03 14:49:18 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 14:49:18 net packet injection: enabled 2019/12/03 14:49:18 net device setup: enabled 2019/12/03 14:49:18 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 14:49:18 devlink PCI setup: PCI device 0000:00:10.0 is not available 14:49:19 executing program 0: r0 = creat(&(0x7f0000000000)='./bus\x00', 0x0) pwritev(r0, &(0x7f0000001380)=[{&(0x7f0000000080)="3b41d029b3ec1d8c390c3745278bba34abf8e20bb5a004225bb1f23e", 0x1c}, {&(0x7f0000000180)="126e530e10620c1c6b7151df15a54fd3656925571725fb84e435b6", 0x1b}], 0x2, 0x9) lsetxattr$security_ima(&(0x7f0000000040)='./bus\x00', &(0x7f0000000100)='security.ima\x00', &(0x7f0000000140)=@ng, 0x2, 0x0) open(&(0x7f00000000c0)='./bus\x00', 0x0, 0x0) 14:49:19 executing program 1: perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0x1f, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = openat$mixer(0xffffffffffffff9c, &(0x7f0000000100)='/dev/mixer\x00', 0x0, 0x0) ioctl$USBDEVFS_CONTROL(r0, 0xc0185500, &(0x7f0000000200)={0x20, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syzkaller login: [ 61.190400][ T8256] IPVS: ftp: loaded support on port[0] = 21 [ 61.265378][ T8258] IPVS: ftp: loaded support on port[0] = 21 14:49:20 executing program 2: r0 = socket$inet6(0xa, 0x3, 0x6b) ioctl(r0, 0x1000008912, &(0x7f0000000000)="0815b5055e0bcfe87b3071") bpf$PROG_LOAD(0x5, &(0x7f00000017c0)={0x1, 0xe, &(0x7f0000000280)=ANY=[@ANYBLOB="b7000000a5517f5fbfa30000000000000703000028feffff720af0fff8ffffff71a4f0ff00000000b7060000000000012e400300000000006506020001ed00007118540000000000c3640000000000006a0a00fe00000000850000002e000000b7000000000000009500000000000000023bc065b7a379d179fc9e94af69912435f1b6a693172e61917adef6ee1c8a2b4f8ef1e50beca090f32050e436fe275daf51efd601b6bf01c8e8b1b5e4fef3bef7054815ae98743d1ace4c46631256dd19aed0d600c095199fe3ff3128e599b0eaebbdbd7359a48f5b0afc646cb779"], &(0x7f00000001c0)='\x00\xf1)\r*\xbbzL\x8e7\x9e\xaa\xb3y\xb9\xfa!\xad!\xb4\xd4\x94\xa0\x86\xcf\x12#\xb4\xd3n$\x85\x06k\xb2\xf9\xd5\"\xfe\x86 \b\x7f\xe8\x8a\xcf\x89\x9b\xbaR]\xf5{J\x84\x15\xf9)\xf3\xc8\xd5`\xe6\xe6\x9eI\x02\xce\x1fI\xa8w\xc3#\xba\xf5\xe9\xea>\xc7\xab2,\xa0\x84t\xce\x04Tf\xc5\xfe`\'\x9b\xe2MH%\x93\x028\xcb\x0f\xdb\x16\xe2l\x80\xe6\xcd\xceW\x01SS-o`X\xf6\xa4\xc1|\xbe\xc4\xf0\xac1zp\xc9\x89\xef.\xa4\x91\xb4\xf3(', 0x0, 0x0, 0x0, 0x0, 0x4}, 0x48) [ 61.385819][ T8256] chnl_net:caif_netlink_parms(): no params data found [ 61.417239][ T8258] chnl_net:caif_netlink_parms(): no params data found [ 61.477527][ T8256] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.486969][ T8256] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.496033][ T8256] device bridge_slave_0 entered promiscuous mode [ 61.505266][ T8258] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.513928][ T8258] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.522811][ T8258] device bridge_slave_0 entered promiscuous mode [ 61.530636][ T8256] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.540653][ T8256] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.549470][ T8256] device bridge_slave_1 entered promiscuous mode [ 61.558005][ T8258] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.566078][ T8258] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.575131][ T8258] device bridge_slave_1 entered promiscuous mode [ 61.604152][ T8258] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.615546][ T8256] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.626908][ T8258] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.645662][ T8256] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.659056][ T8263] IPVS: ftp: loaded support on port[0] = 21 14:49:20 executing program 3: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup3(r0, r1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0) ftruncate(r3, 0x200004) r4 = socket$inet6_sctp(0xa, 0x801, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r4, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) setsockopt$inet_sctp6_SCTP_RTOINFO(r4, 0x84, 0x0, &(0x7f0000000200)={0x0, 0x7}, 0x10) connect$inet6(r4, &(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) sendfile(r4, r3, 0x0, 0x80001d00c0d0) [ 61.707396][ T8258] team0: Port device team_slave_0 added [ 61.718784][ T8256] team0: Port device team_slave_0 added [ 61.729679][ T8258] team0: Port device team_slave_1 added [ 61.737847][ T8256] team0: Port device team_slave_1 added [ 61.865147][ T8256] device hsr_slave_0 entered promiscuous mode 14:49:20 executing program 4: clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) keyctl$set_reqkey_keyring(0xe, 0x5) keyctl$join(0x1, 0x0) request_key(&(0x7f0000000100)='user\x00', &(0x7f0000000080)={'syz', 0x2}, &(0x7f00000000c0)='uxer}eth\x1c\x83v\x15\xbd1\x8e$0\x9f\x01\xc1\x03\xf21\x00', 0x0) [ 61.921958][ T8256] device hsr_slave_1 entered promiscuous mode [ 62.001325][ T8265] IPVS: ftp: loaded support on port[0] = 21 14:49:20 executing program 5: syz_emit_ethernet(0x36, &(0x7f00000001c0)={@local, @local, [], {@ipv6={0x86dd, {0x0, 0x6, 'J?y', 0x0, 0x0, 0x0, @loopback, @remote, {[@srh={0x0, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, [@loopback, @remote, @remote]}, @hopopts={0x0, 0x0, [], [@jumbo, @calipso={0x7, 0x0, {0x0, 0x0, 0x0, 0x0, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}}, @enc_lim, @hao={0xc9, 0x0, @mcast2}, @generic={0x0, 0x0, "e97e245563d7a5bb9c5f04"}]}], @icmpv6=@ndisc_redir={0x89, 0x0, 0x0, [], @dev, @empty, [{0x0, 0x0, "0af439e90089ba7676fa0674b93536721a0443ddbebc9ca2b581c27847c2051ecfc8781b9da9e31c9b903d9baf8fde6d45cb5ecada236946ba89632a56e7be5903d227e16b78e506b4c09a4b7dc20db0fdca11f866067e713f42df0f67fcf8d8d328ffcd1ab06ef10ffa81b0a4ba2f0d9ab15aa7ac3128d8f54ea79c517897b52788c922a1c3c4d6eded42182beae2e98bacf994e7a17b2175c64cef74379f8cb315093cf8e1fce7a3c55124a67101565172d794971ac1d62153bd701f37f46738ae59040b30105491fe0380aad84237caf1cf14ad9821d435"}]}}}}}}, &(0x7f0000000100)={0x0, 0x3, [0x0, 0xc0]}) [ 62.074802][ T8258] device hsr_slave_0 entered promiscuous mode [ 62.113643][ T8258] device hsr_slave_1 entered promiscuous mode [ 62.152683][ T8258] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.245652][ T8267] IPVS: ftp: loaded support on port[0] = 21 [ 62.308100][ T8256] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.313856][ T8270] IPVS: ftp: loaded support on port[0] = 21 [ 62.355085][ T8256] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.403380][ T8258] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 62.455989][ T8258] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 62.534765][ T8258] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 62.605346][ T8258] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 62.678683][ T8256] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.729259][ T8256] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.803461][ T8263] chnl_net:caif_netlink_parms(): no params data found [ 62.881087][ T8263] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.888662][ T8263] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.897418][ T8263] device bridge_slave_0 entered promiscuous mode [ 62.907076][ T8263] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.914218][ T8263] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.922641][ T8263] device bridge_slave_1 entered promiscuous mode [ 62.939673][ T8263] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.971897][ T8263] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.002333][ T8265] chnl_net:caif_netlink_parms(): no params data found [ 63.040094][ T8263] team0: Port device team_slave_0 added [ 63.073253][ T8256] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.088373][ T8263] team0: Port device team_slave_1 added [ 63.143251][ T8265] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.150395][ T8265] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.158458][ T8265] device bridge_slave_0 entered promiscuous mode [ 63.171109][ T8256] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.185116][ T8270] chnl_net:caif_netlink_parms(): no params data found [ 63.254867][ T8263] device hsr_slave_0 entered promiscuous mode [ 63.311872][ T8263] device hsr_slave_1 entered promiscuous mode [ 63.341602][ T8263] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.349476][ T8265] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.357220][ T8265] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.365329][ T8265] device bridge_slave_1 entered promiscuous mode [ 63.374982][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.384131][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.420897][ T8265] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.432232][ T8265] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.442055][ T8267] chnl_net:caif_netlink_parms(): no params data found [ 63.462133][ T8276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.471127][ T8276] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.480672][ T8276] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.487839][ T8276] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.497468][ T8276] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.515671][ T8265] team0: Port device team_slave_0 added [ 63.530199][ T8265] team0: Port device team_slave_1 added [ 63.537572][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.547861][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.556793][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.563932][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.574012][ T8258] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.615945][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.624489][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.633502][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.642528][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.655311][ T8271] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.713183][ T8265] device hsr_slave_0 entered promiscuous mode [ 63.741995][ T8265] device hsr_slave_1 entered promiscuous mode [ 63.781640][ T8265] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.790521][ T8263] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 63.838448][ T8263] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 63.898422][ T8263] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 63.943377][ T8263] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 63.984831][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.993534][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.001337][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.010030][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.022763][ T8258] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.032845][ T8270] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.040565][ T8270] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.048504][ T8270] device bridge_slave_0 entered promiscuous mode [ 64.055758][ T8267] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.064011][ T8267] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.072071][ T8267] device bridge_slave_0 entered promiscuous mode [ 64.084099][ T8267] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.091185][ T8267] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.099326][ T8267] device bridge_slave_1 entered promiscuous mode [ 64.126081][ T8270] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.133285][ T8270] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.141025][ T8270] device bridge_slave_1 entered promiscuous mode [ 64.152860][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.161250][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.170134][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.178834][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.187338][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.194447][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.202162][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.215878][ T8265] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 64.279970][ T8265] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 64.339549][ T8265] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 64.385206][ T8267] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.397941][ T8267] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.408293][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.417308][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.426022][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.433350][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.440907][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.449377][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.461666][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.473113][ T8270] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.485907][ T8265] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 64.538888][ T8256] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.554883][ T8270] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.570889][ T8267] team0: Port device team_slave_0 added [ 64.595149][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.604174][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.613521][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.625390][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.640573][ T8267] team0: Port device team_slave_1 added [ 64.665709][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.675775][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.684661][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.692846][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.706368][ T8258] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 64.717719][ T8258] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.794848][ T8267] device hsr_slave_0 entered promiscuous mode [ 64.831862][ T8267] device hsr_slave_1 entered promiscuous mode [ 64.881668][ T8267] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.891585][ T8270] team0: Port device team_slave_0 added [ 64.898101][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.906838][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.915256][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.923712][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.932076][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.956174][ T8256] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.964987][ T8270] team0: Port device team_slave_1 added [ 65.053289][ T8270] device hsr_slave_0 entered promiscuous mode [ 65.101872][ T8270] device hsr_slave_1 entered promiscuous mode [ 65.141695][ T8270] debugfs: Directory 'hsr0' with parent '/' already present! [ 65.163019][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.170460][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.183926][ T8267] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 65.223723][ T8267] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 65.264273][ T8267] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 65.297532][ T23] kauditd_printk_skb: 3 callbacks suppressed [ 65.297541][ T23] audit: type=1804 audit(1575384564.013:31): pid=8280 uid=0 auid=4294967295 ses=4294967295 subj=_ op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir282118194/syzkaller.VpaAJD/0/bus" dev="sda1" ino=16521 res=1 [ 170.301362][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 170.308361][ C0] (detected by 0, t=10502 jiffies, g=6577, q=132) [ 170.314972][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294954165-4294943662), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 170.328318][ C0] syz-executor.0 R running task 27584 8279 8256 0x80004008 [ 170.336553][ C0] Call Trace: [ 170.339830][ C0] [ 170.342681][ C0] sched_show_task+0x40f/0x560 [ 170.347441][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 170.355590][ C0] update_process_times+0x12d/0x180 [ 170.360815][ C0] tick_sched_timer+0x263/0x420 [ 170.365655][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 170.371195][ C0] __hrtimer_run_queues+0x403/0x840 [ 170.376486][ C0] hrtimer_interrupt+0x38c/0xda0 [ 170.381429][ C0] ? debug_smp_processor_id+0x9/0x20 [ 170.386886][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 170.392423][ C0] apic_timer_interrupt+0xf/0x20 [ 170.397346][ C0] [ 170.400279][ C0] RIP: 0010:mod_memcg_page_state+0x16/0x190 [ 170.406160][ C0] Code: 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 da 28 2e 00 <48> 83 c3 38 48 89 d8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 [ 170.425864][ C0] RSP: 0018:ffffc90002c17ad8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 170.434305][ C0] RAX: ffffffff81487326 RBX: ffffea0002600b40 RCX: ffff8880a8534640 [ 170.442337][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002600b40 [ 170.450296][ C0] RBP: ffffc90002c17af8 R08: dffffc0000000000 R09: fffffbfff12877ed [ 170.458388][ C0] R10: fffffbfff12877ed R11: 0000000000000000 R12: ffff88806c191920 [ 170.466630][ C0] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff888087bad428 [ 170.474612][ C0] ? mod_memcg_page_state+0x16/0x190 [ 170.479889][ C0] ? mod_memcg_page_state+0x16/0x190 [ 170.485165][ C0] free_thread_stack+0x168/0x590 [ 170.490103][ C0] put_task_stack+0xa3/0x130 [ 170.494778][ C0] finish_task_switch+0x3f1/0x550 [ 170.499800][ C0] __schedule+0x9a8/0xcc0 [ 170.504302][ C0] ? ___preempt_schedule+0x16/0x18 [ 170.509401][ C0] preempt_schedule+0xdb/0x120 [ 170.514156][ C0] ___preempt_schedule+0x16/0x18 [ 170.519085][ C0] ? taskstats_exit+0x30c/0xbb0 [ 170.523926][ C0] _raw_spin_unlock_irqrestore+0xcc/0xe0 [ 170.529561][ C0] taskstats_exit+0x30c/0xbb0 [ 170.534229][ C0] ? _raw_spin_unlock_irq+0x64/0x80 [ 170.539417][ C0] ? acct_collect+0x4c4/0x5f0 [ 170.544087][ C0] do_exit+0x53f/0x2020 [ 170.548249][ C0] do_group_exit+0x15c/0x2b0 [ 170.552944][ C0] __do_sys_exit_group+0x17/0x20 [ 170.557967][ C0] __se_sys_exit_group+0x14/0x20 [ 170.562889][ C0] __x64_sys_exit_group+0x3b/0x40 [ 170.567900][ C0] do_syscall_64+0xf7/0x1c0 [ 170.572391][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 170.578270][ C0] RIP: 0033:0x45a679 [ 170.582932][ C0] 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 [ 170.602521][ C0] RSP: 002b:00007ffed824a0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 170.610946][ C0] RAX: ffffffffffffffda RBX: 000000000000001e RCX: 000000000045a679 [ 170.618915][ C0] RDX: 0000000000414211 RSI: fffffffffffffff7 RDI: 0000000000000000 [ 170.627398][ C0] RBP: 0000000000000000 R08: ffffffffffffffff R09: 00007ffed824a120 [ 170.635448][ C0] R10: 00000000007603e0 R11: 0000000000000246 R12: 0000000000000001 [ 170.643582][ C0] R13: 00007ffed824a120 R14: 0000000000000000 R15: 00007ffed824a130 [ 170.651660][ C0] rcu: rcu_preempt kthread starved for 10537 jiffies! g6577 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 170.662867][ C0] rcu: RCU grace-period kthread stack dump: [ 170.668742][ C0] rcu_preempt R running task 29104 10 2 0x80004008 [ 170.676629][ C0] Call Trace: [ 170.679917][ C0] __schedule+0x9a8/0xcc0 [ 170.684268][ C0] schedule+0x181/0x210 [ 170.688414][ C0] schedule_timeout+0x14f/0x240 [ 170.693251][ C0] ? run_local_timers+0x120/0x120 [ 170.698290][ C0] rcu_gp_kthread+0xed8/0x1770 [ 170.703050][ C0] kthread+0x332/0x350 [ 170.707102][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 170.712197][ C0] ? kthread_blkcg+0xe0/0xe0 [ 170.716778][ C0] ret_from_fork+0x24/0x30