[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 44.954725][ T26] audit: type=1800 audit(1575397396.340:25): pid=8080 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 44.974301][ T26] audit: type=1800 audit(1575397396.340:26): pid=8080 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 45.018585][ T26] audit: type=1800 audit(1575397396.340:27): pid=8080 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 '10.128.1.20' (ECDSA) to the list of known hosts. 2019/12/03 18:23:25 fuzzer started 2019/12/03 18:23:27 dialing manager at 10.128.0.26:42111 2019/12/03 18:23:27 syscalls: 2689 2019/12/03 18:23:27 code coverage: enabled 2019/12/03 18:23:27 comparison tracing: enabled 2019/12/03 18:23:27 extra coverage: extra coverage is not supported by the kernel 2019/12/03 18:23:27 setuid sandbox: enabled 2019/12/03 18:23:27 namespace sandbox: enabled 2019/12/03 18:23:27 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 18:23:27 fault injection: enabled 2019/12/03 18:23:27 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 18:23:27 net packet injection: enabled 2019/12/03 18:23:27 net device setup: enabled 2019/12/03 18:23:27 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 18:23:27 devlink PCI setup: PCI device 0000:00:10.0 is not available 18:23:28 executing program 0: unshare(0x20400) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x5) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000000240)={0x26, 'hash\x00', 0x0, 0x0, 'xxhash64\x00'}, 0x58) 18:23:28 executing program 1: r0 = epoll_create1(0x0) prlimit64(0x0, 0xe, &(0x7f0000000280)={0x9, 0x4000000000008d}, 0x0) r1 = getpid() sched_setattr(r1, &(0x7f0000000040)={0x30, 0x2, 0x0, 0x0, 0x5}, 0x0) setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, 0x0, 0x0) setsockopt$packet_int(0xffffffffffffffff, 0x107, 0x0, 0x0, 0x0) openat$fuse(0xffffffffffffff9c, 0x0, 0x2, 0x0) openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) fchdir(0xffffffffffffffff) mmap(&(0x7f0000ff9000/0x4000)=nil, 0x4000, 0x0, 0x10, 0xffffffffffffffff, 0x0) r2 = openat$ion(0xffffffffffffff9c, 0x0, 0x80000, 0x0) ioctl(r2, 0xfffffffffffffffd, &(0x7f00000004c0)="5c0ef0d122fdd3457182e522a76ade3b7d077da3e37955aabd2d349177bcfff9b7f17e4c18d670f232fecb82c7890644bbc7b5781dab849e9e8c2e9fd0371eb8586980199ea0d97187ace7a5bca1cc45fab59958439d6499fb981470e8") r3 = getpgid(0x0) perf_event_open(&(0x7f0000000700)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x1, 0x0, 0xfffffffffffffffe, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, @perf_config_ext={0x81}}, r3, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioprio_get$pid(0x0, r3) timer_create(0xd3118d1722f6563c, &(0x7f0000000180)={0x0, 0x14, 0x0, @thr={&(0x7f00000002c0)="4fe535a187257fef6e8757739786ccde113b00a24e14cf32a8eb834fef219dbd0747b7072be348f11a6310c42fccb2a217eeb1a7ddf2a45af28c16844f08ffc0a3a5dfd6bdc14429a796b0bf1d09bc8ef76df7c3dd567d0b86e4f36f1f756de9bef18f23eef816b14da1cc91171d325219d851b356afbb06a7d425153f504981b02095a95979a3c2fe42f3c3d70564dad3de07c54a309f3792d50bab", &(0x7f0000000380)="1f869abd5d91958ae2a5ae2ab86bb7b8c43174f7bd681e8c986037e64aeb0584c925f855ccd8d630ee05e5acb1e83aa1117efb4f9f5eba1315a18e405e400a15935bdeac1974e2e1064acc892b5f3717ec24b8f16f5856ff860f11dae1fbd1818b7164f11d7ba2dc98de2270a6b1e928bcb32a1d380250826b7263403981b11208f1d6e04edc486c143cc4cd3d5d60e9cee3d6009a3e9cb0d419ee55b421925fd1950aefa4f4d5da4c87ec29b72522dbcada349474c0221399c6f378809e79991e55140dc7fb254d909f773930"}}, &(0x7f0000000240)) pipe(&(0x7f0000000200)={0xffffffffffffffff}) vmsplice(r4, &(0x7f0000000000)=[{&(0x7f0000000500), 0x3528a9c0}], 0x1, 0x0) r5 = openat$cgroup_ro(0xffffffffffffffff, &(0x7f0000000740)='/gro<#\xfbW\xe6\xc6\x0f\x1fKE\xb7M\x99\x9a\x9a\a\xd2\x8f(.\xf6\x18\xa4\xcb:\x9c\xd1-\xce\xa4@\xd8\x99\xc2,e\xab\x8d\xed\xa6\\\x1c\xc3\x97\x94\xf6\xe0.+\xe3\x89\xde\x139E\xa3\x85\xbd\x81\xe9\xbd\xee\xee\x03\x00\x00\x00\x00\x00\x00\x00[T\x15v$\xc5\xbc\x11N\t\x9ej5)\x00\x00\x009\x8c4\xc4\x88C\xa2B\x8b\x81\v\xea\t\xf0\x8fw\a\f\x15\xe2\xd0q\xbb\t\xbf\x85\x98~\v\xd8D\xab9(\xf6.\x15\xcd2-\xf2\xc4\xd8\x00a\xd5\xd9\xb5Z\xd7\xb4\xac\x1d_+k\xd6\x8ag\xdceHE\xd5\x1c\x8a\xbd#\xcc\x82\xc2\xc2(\xb6\xe1\x99p\x9b\xa3D\xd2\x91\x96\xef\x05\fv\x16\x14\xcc\xea\x9d\x11w\x1e\xb5VG\x9ad\x9a`=^h\x8c8\xc9\"\x1eO\xb5vk\xc9\v\x17\x95\xf7\x19\x99\x99\x92\xc3\xc0\x8a\x18\xc7\"g\xd7B\x8f\x85\x18\xf3\x02\xa7\xb6\x83\x92\xefY\xef\x85\x92\x10E\x18\xbc\xacy\xd6\xa7Wh\xcd\xd0\xfa\xcc\x01\xeb\xdf\xad\xfd\xb0\xee\xfb\xc2(\x8cj\xd0uj{4\xb2\xe1p\x88u6\x9a;\xaa\x9f+J\x9e\xe3\xcc\xc7O\xad\x84\x8c;\x92~,\x15\xb2\x97\f~\xa0W\x16\x8b\a\x88\xaa\xe4C\xaf\x90\xdf\x7f\xe51\x00/n\xb5f\x1a\x8c+\xea<\xe3N@\x9e\xec\xbe{\x90x\xc6\xd7\xeeI\x1d\xcbY\xe1\x01\xd2d\xae\xd1(>\xa3\xa9\x93\x16\xc6G\x94|\x00\x00\x00\x00\x00\x00\x00\x00\x91\x00+/pF\xfa]\xc4\xb3\xfc~\x13\xc3\x8aV\xa5\n\xe9H\xad\xf5\xa7{\x90\b\x9bb\xb8gY\xdb', 0x2761, 0x0) write$cgroup_pid(r5, &(0x7f0000000080), 0xfffffe38) setsockopt$inet6_udp_int(0xffffffffffffffff, 0x11, 0x65, &(0x7f0000000100)=0x6e, 0x4) ioctl$PERF_EVENT_IOC_PAUSE_OUTPUT(r5, 0x660c, 0x0) epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(0xffffffffffffffff, 0x1, r0, &(0x7f00000000c0)={0x20000001}) syzkaller login: [ 57.510649][ T8242] IPVS: ftp: loaded support on port[0] = 21 18:23:29 executing program 2: r0 = socket$vsock_stream(0x28, 0x1, 0x0) bind$vsock_stream(r0, &(0x7f0000000000)={0x28, 0x0, 0x0, @host, 0xffffffff00000000}, 0x10) r1 = socket$vsock_stream(0x28, 0x1, 0x0) bind$vsock_stream(r1, &(0x7f0000000000)={0x28, 0x0, 0x0, @host, 0xffffffff00000000}, 0x10) [ 57.672265][ T8242] chnl_net:caif_netlink_parms(): no params data found [ 57.719099][ T8242] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.727113][ T8242] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.735267][ T8242] device bridge_slave_0 entered promiscuous mode [ 57.745824][ T8242] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.752979][ T8242] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.760909][ T8242] device bridge_slave_1 entered promiscuous mode [ 57.781600][ T8242] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.792573][ T8242] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.808742][ T8245] IPVS: ftp: loaded support on port[0] = 21 [ 57.821558][ T8242] team0: Port device team_slave_0 added [ 57.830449][ T8242] team0: Port device team_slave_1 added 18:23:29 executing program 3: r0 = socket$inet_udplite(0x2, 0x2, 0x88) mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x4, 0x10032, 0xffffffffffffffff, 0x0) r1 = userfaultfd(0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f0000000480)) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000300)={{&(0x7f0000011000/0x3000)=nil, 0x3000}, 0x1}) r4 = socket$inet6_sctp(0xa, 0x5, 0x84) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(r4, 0x84, 0x70, &(0x7f0000013ff4)=@assoc_value, &(0x7f0000002000)=0x8) setsockopt$inet_sctp6_SCTP_DEFAULT_PRINFO(r4, 0x84, 0x72, &(0x7f0000000080), 0xc) r5 = dup2(r0, r4) dup3(r5, r1, 0x0) [ 57.898121][ T8242] device hsr_slave_0 entered promiscuous mode [ 57.935565][ T8242] device hsr_slave_1 entered promiscuous mode [ 58.000248][ T8247] IPVS: ftp: loaded support on port[0] = 21 [ 58.109862][ T8242] netdevsim netdevsim0 netdevsim0: renamed from eth0 18:23:29 executing program 4: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$ipvs(&(0x7f0000000040)='IPVS\x00') sendmsg$IPVS_CMD_DEL_DAEMON(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000000c0)={0x44, r1, 0x1, 0x0, 0x0, {0x4}, [@IPVS_CMD_ATTR_SERVICE={0x30, 0x1, [@IPVS_SVC_ATTR_PORT={0x8}, @IPVS_SVC_ATTR_AF={0x8, 0x1, 0xa}, @IPVS_SVC_ATTR_PROTOCOL={0x8}, @IPVS_SVC_ATTR_ADDR={0x14}]}]}, 0x44}}, 0x0) [ 58.209961][ T8242] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.284334][ T8249] IPVS: ftp: loaded support on port[0] = 21 [ 58.316808][ T8242] netdevsim netdevsim0 netdevsim2: renamed from eth2 18:23:29 executing program 5: r0 = socket$inet6(0xa, 0x3, 0x6b) ioctl(r0, 0x2001000008912, &(0x7f0000000000)="0815b5055e0bcfe87b3071") bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0xd, 0x4, &(0x7f0000000000)=@framed={{}, [@call={0x61, 0x11, 0x58}]}, &(0x7f00000000c0)='GPL\x00', 0x4, 0x1000, &(0x7f0000000200)=""/4096, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0}, 0x70) [ 58.437845][ T8242] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.509963][ T8252] IPVS: ftp: loaded support on port[0] = 21 [ 58.563183][ T8245] chnl_net:caif_netlink_parms(): no params data found [ 58.575587][ T8254] IPVS: ftp: loaded support on port[0] = 21 [ 58.601703][ T8242] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.608881][ T8242] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.616635][ T8242] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.623679][ T8242] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.697746][ T8247] chnl_net:caif_netlink_parms(): no params data found [ 58.711806][ T3746] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.720511][ T3746] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.738861][ T8245] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.746221][ T8245] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.753924][ T8245] device bridge_slave_0 entered promiscuous mode [ 58.792124][ T8242] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.800961][ T8245] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.809634][ T8245] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.818066][ T8245] device bridge_slave_1 entered promiscuous mode [ 58.887594][ T8247] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.894728][ T8247] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.902680][ T8247] device bridge_slave_0 entered promiscuous mode [ 58.911437][ T8247] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.918572][ T8247] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.926461][ T8247] device bridge_slave_1 entered promiscuous mode [ 58.939508][ T8245] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.969153][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.977556][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.013251][ T8245] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.032400][ T8252] chnl_net:caif_netlink_parms(): no params data found [ 59.049402][ T8247] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.063689][ T8242] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.076441][ T8254] chnl_net:caif_netlink_parms(): no params data found [ 59.097285][ T8247] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.117234][ T8249] chnl_net:caif_netlink_parms(): no params data found [ 59.151541][ T8245] team0: Port device team_slave_0 added [ 59.163147][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.173604][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.182408][ T3745] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.189518][ T3745] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.197516][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.206414][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.214684][ T3745] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.221774][ T3745] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.229557][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.238156][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.246590][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.255123][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.266983][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.292853][ T8245] team0: Port device team_slave_1 added [ 59.300584][ T8247] team0: Port device team_slave_0 added [ 59.319333][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.328523][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.337492][ T8252] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.344647][ T8252] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.352479][ T8252] device bridge_slave_0 entered promiscuous mode [ 59.360736][ T8254] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.368157][ T8254] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.375794][ T8254] device bridge_slave_0 entered promiscuous mode [ 59.383834][ T8254] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.391010][ T8254] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.399083][ T8254] device bridge_slave_1 entered promiscuous mode [ 59.427154][ T8247] team0: Port device team_slave_1 added [ 59.466680][ T8245] device hsr_slave_0 entered promiscuous mode [ 59.525333][ T8245] device hsr_slave_1 entered promiscuous mode [ 59.565034][ T8245] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.578507][ T8249] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.585989][ T8249] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.593597][ T8249] device bridge_slave_0 entered promiscuous mode [ 59.601562][ T8252] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.610538][ T8252] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.619397][ T8252] device bridge_slave_1 entered promiscuous mode [ 59.628462][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.638934][ T3745] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.651313][ T8254] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.662855][ T8254] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.684059][ T8249] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.693193][ T8249] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.701367][ T8249] device bridge_slave_1 entered promiscuous mode [ 59.749457][ T3746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.758553][ T3746] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.773131][ T8252] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.785549][ T8252] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.867657][ T8247] device hsr_slave_0 entered promiscuous mode [ 59.895140][ T8247] device hsr_slave_1 entered promiscuous mode [ 59.975064][ T8247] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.988642][ T8249] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.000021][ T8242] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.011260][ T8254] team0: Port device team_slave_0 added [ 60.022856][ T8254] team0: Port device team_slave_1 added [ 60.031022][ T8245] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 60.099566][ T8245] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 60.148756][ T8249] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.165735][ T8252] team0: Port device team_slave_0 added [ 60.178029][ T8249] team0: Port device team_slave_0 added [ 60.186042][ T8249] team0: Port device team_slave_1 added [ 60.196481][ T8245] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 60.238031][ T8252] team0: Port device team_slave_1 added [ 60.256893][ T8245] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 60.397003][ T8254] device hsr_slave_0 entered promiscuous mode [ 60.435224][ T8254] device hsr_slave_1 entered promiscuous mode [ 60.474943][ T8254] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.536869][ T8249] device hsr_slave_0 entered promiscuous mode [ 60.575254][ T8249] device hsr_slave_1 entered promiscuous mode [ 60.615016][ T8249] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.625339][ T8247] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 60.661664][ T8247] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 60.709823][ T3057] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.718365][ T3057] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.728905][ T8242] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.778269][ T8252] device hsr_slave_0 entered promiscuous mode [ 60.825198][ T8252] device hsr_slave_1 entered promiscuous mode [ 60.864967][ T8252] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.872665][ T8247] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 60.927056][ T8247] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.014275][ T8252] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 166.034775][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 166.041648][ C1] rcu: 1-...!: (10499 ticks this GP) idle=cae/1/0x4000000000000002 softirq=10761/10762 fqs=1 [ 166.052506][ C1] (t=10501 jiffies g=6169 q=163) [ 166.057539][ C1] rcu: rcu_preempt kthread starved for 10500 jiffies! g6169 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 166.068767][ C1] rcu: RCU grace-period kthread stack dump: [ 166.075450][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 166.084046][ C1] Call Trace: [ 166.087598][ C1] __schedule+0x9a0/0xcc0 [ 166.092014][ C1] schedule+0x181/0x210 [ 166.096334][ C1] schedule_timeout+0x14f/0x240 [ 166.101375][ C1] ? run_local_timers+0x120/0x120 [ 166.106428][ C1] rcu_gp_kthread+0xed8/0x1770 [ 166.111813][ C1] kthread+0x332/0x350 [ 166.115869][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 166.120977][ C1] ? kthread_blkcg+0xe0/0xe0 [ 166.125648][ C1] ret_from_fork+0x24/0x30 [ 166.130247][ C1] NMI backtrace for cpu 1 [ 166.134721][ C1] CPU: 1 PID: 8242 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0 [ 166.143243][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 166.153285][ C1] Call Trace: [ 166.156565][ C1] [ 166.159396][ C1] dump_stack+0x1fb/0x318 [ 166.163704][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 166.168549][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 166.174713][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 166.181404][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 166.187360][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 166.193238][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 166.198347][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 166.203525][ C1] ? trace_hardirqs_off+0x74/0x80 [ 166.208534][ C1] update_process_times+0x12d/0x180 [ 166.213706][ C1] tick_sched_timer+0x263/0x420 [ 166.218545][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 166.224072][ C1] __hrtimer_run_queues+0x403/0x840 [ 166.229276][ C1] hrtimer_interrupt+0x38c/0xda0 [ 166.234406][ C1] ? debug_smp_processor_id+0x9/0x20 [ 166.239978][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 166.245517][ C1] apic_timer_interrupt+0xf/0x20 [ 166.250446][ C1] [ 166.253361][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 [ 166.259428][ C1] Code: 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d 74 25 cd 07 48 89 de e8 64 02 3b 00 5b 5d c3 cc <48> 8b 04 24 65 48 8b 0c 25 c0 1d 02 00 65 8b 15 b8 81 8b 7e f7 c2 [ 166.279024][ C1] RSP: 0018:ffffc90001e57bc8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 166.287417][ C1] RAX: 1ffff110151185b1 RBX: ffffea000261d800 RCX: ffff88809a358040 [ 166.295382][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea000261d800 [ 166.303329][ C1] RBP: ffffc90001e57c08 R08: 000000000003a768 R09: fffffbfff120248a [ 166.311277][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880a88c2e20 [ 166.319234][ C1] R13: dffffc0000000000 R14: 1ffff110151185c4 R15: ffff88808da77a68 [ 166.327795][ C1] ? free_thread_stack+0x124/0x590 [ 166.333026][ C1] put_task_stack+0xa3/0x130 [ 166.337598][ C1] finish_task_switch+0x3f1/0x550 [ 166.342619][ C1] __schedule+0x9a8/0xcc0 [ 166.347022][ C1] schedule+0x181/0x210 [ 166.351168][ C1] do_nanosleep+0x1d0/0x6c0 [ 166.355749][ C1] hrtimer_nanosleep+0x3a6/0x5b0 [ 166.360687][ C1] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 166.366665][ C1] __x64_sys_nanosleep+0x186/0x1d0 [ 166.371769][ C1] do_syscall_64+0xf7/0x1c0 [ 166.376250][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.382116][ C1] RIP: 0033:0x458b20 [ 166.385995][ C1] Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d 11 fe 61 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 d1 fb ff c3 48 83 ec 08 e8 ea 46 00 00 [ 166.406383][ C1] RSP: 002b:00007ffc0794afe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 [ 166.414770][ C1] RAX: ffffffffffffffda RBX: 000000000000ee48 RCX: 0000000000458b20 [ 166.422728][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffc0794aff0 [ 166.430688][ C1] RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000aa7940 [ 166.438638][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 166.446599][ C1] R13: 00007ffc0794b040 R14: 000000000000ee48 R15: 00007ffc0794b050