[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 46.761737][ T26] audit: type=1800 audit(1575401745.465:25): pid=8113 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 46.780724][ T26] audit: type=1800 audit(1575401745.475:26): pid=8113 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 46.824031][ T26] audit: type=1800 audit(1575401745.475:27): pid=8113 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 '10.128.0.178' (ECDSA) to the list of known hosts. 2019/12/03 19:35:56 fuzzer started 2019/12/03 19:35:58 dialing manager at 10.128.0.26:42111 2019/12/03 19:35:58 syscalls: 2689 2019/12/03 19:35:58 code coverage: enabled 2019/12/03 19:35:58 comparison tracing: enabled 2019/12/03 19:35:58 extra coverage: extra coverage is not supported by the kernel 2019/12/03 19:35:58 setuid sandbox: enabled 2019/12/03 19:35:58 namespace sandbox: enabled 2019/12/03 19:35:58 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 19:35:58 fault injection: enabled 2019/12/03 19:35:58 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 19:35:58 net packet injection: enabled 2019/12/03 19:35:58 net device setup: enabled 2019/12/03 19:35:58 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 19:35:58 devlink PCI setup: PCI device 0000:00:10.0 is not available 19:35:59 executing program 0: r0 = openat$sequencer(0xffffffffffffff9c, &(0x7f0000000100)='/dev/sequencer\x00', 0x80006, 0x0) write$char_usb(r0, &(0x7f0000000600)="2ebd8668180bd0dbf21104e2f32e79a32a342c11fe8bfa6d949a3ca8724b2f6b7ba203095b9dcc5d68b8b103a46b9f1382b164c02e3a5d6a2a2db906a2eaad773b78b62b95882ba482522fdf4f8d5c1d20cc755df4f4a8be8832b02c71a09da1518c5c5f94eb8b9484e903205704c00e0ad08dd389e6e1a4", 0x78) 19:35:59 executing program 1: r0 = syz_open_dev$sg(&(0x7f0000000340)='/dev/sg#\x00', 0x0, 0x5) writev(r0, &(0x7f0000000000)=[{&(0x7f0000000100)="ae88bff824f400005a90f57f07703aeff0f64ebbee07962c22772e11b44e69d90cf41bdd2ac8bb8c43b460e46292", 0x2e}, {&(0x7f0000000040)="53000000fcffffff040400000004000000f0ffffff7f0000000040000000000000000000", 0xffffffe5}], 0x2) syzkaller login: [ 60.571335][ T8276] IPVS: ftp: loaded support on port[0] = 21 [ 60.737320][ T8276] chnl_net:caif_netlink_parms(): no params data found [ 60.747461][ T8278] IPVS: ftp: loaded support on port[0] = 21 [ 60.777615][ T8276] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.786163][ T8276] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.794397][ T8276] device bridge_slave_0 entered promiscuous mode [ 60.808666][ T8276] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.816162][ T8276] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.825063][ T8276] device bridge_slave_1 entered promiscuous mode 19:35:59 executing program 2: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup2(r0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = socket$packet(0x11, 0x2, 0x300) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) r5 = socket$packet(0x11, 0x2, 0x300) sendmsg$sock(r5, &(0x7f00000000c0)={&(0x7f00000001c0)=@ll={0x11, 0x4305, r4, 0x1, 0x0, 0x6, @link_local}, 0x80, 0x0}, 0x0) [ 60.853791][ T8276] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.868412][ T8276] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.894881][ T8276] team0: Port device team_slave_0 added [ 60.926491][ T8276] team0: Port device team_slave_1 added [ 61.016849][ T8276] device hsr_slave_0 entered promiscuous mode [ 61.054339][ T8276] device hsr_slave_1 entered promiscuous mode 19:35:59 executing program 3: pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = socket$inet_udp(0x2, 0x2, 0x0) writev(r1, &(0x7f0000000200)=[{&(0x7f00000000c0)="580000001400ad", 0x7}], 0x1) close(r2) r3 = socket$netlink(0x10, 0x3, 0x0) r4 = bpf$PROG_LOAD(0x5, &(0x7f0000000100)={0x1, 0x3, &(0x7f0000000400)=ANY=[@ANYBLOB="850000000800000014000000000000009500000000000000ea202776fc80cd56ac4c443c29cdd18f6f84b9f630fdabe1edc44011c743026599aa45bf8d93194838a9035a636154e209a398f2b5393fc111908d07c536bb8801238515288ab0f49ed8bb81197422168a0a0b032d109053fc1f97ac4ab8005200e73f93db818badc0bcd6d82f68d3826edc2f56f7ddb789b2f31ea63132ce06329b928c75725e7715d2bc8eac578cf61b38ccbcaf75bd0c037803dbbc17343551b11f7fda3ee612bdbca1e7129745b99e30793d8c4e014c"], &(0x7f0000000240)='EP\xd4\x00\x1f\x91\xeb/W\xb72$C0%\x03\x9c0\x96\xb2\fkC\x93H\xbfh\x9c\b`\x857\xd6\">c\xad\xc0bO\xba\xe2\xe1\t5\x9d\xcei\"2L\xcc\x13\x16\vh\xca\xe6C\x06\x97%\x9d\xd5-\x1fs\xe1j\xdc5\x92\xd0)%\xdf\xfa\xe8^\x9c\xd29\x8clg\xc8\x7f\xb5\xb1&\x02\xf1E\xb4\x84\xbeE\x91)f\xe8\xb7\xe2\xf6`i\xc5m\xd7l\x1d\xc1\x12\x01<:kM\xe9\x99\xcd\xcd\xc8\x85Z\xee47\xdc\xc8u\x80\xcf\xbeTo\xbb\xfb\xc0\xebV\xd8\xbb\xbe\xa2\x90J|s\xc2', 0x1, 0xc3, &(0x7f0000000300)=""/195}, 0x48) setsockopt$sock_attach_bpf(r3, 0x1, 0x32, &(0x7f0000000080)=r4, 0x4) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = dup(r5) ioctl$PERF_EVENT_IOC_ENABLE(r6, 0x8912, 0x400200) write$binfmt_misc(r1, &(0x7f0000000140)=ANY=[], 0xfef0) splice(r0, 0x0, r2, 0x0, 0x80000001, 0x0) [ 61.147152][ T8281] IPVS: ftp: loaded support on port[0] = 21 [ 61.278695][ T8276] netdevsim netdevsim0 netdevsim0: renamed from eth0 19:36:00 executing program 4: recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0) perf_event_open(&(0x7f0000000800)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50a, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000100)={0x14, 0x3, &(0x7f0000000200)=@framed={{0xffffff85, 0x0, 0x0, 0x0, 0x7, 0x45, 0x10}}, &(0x7f0000000240)='EP\xd4\x00\x1f\x91\xeb/W\xb72$C0%\x03\x9c0\x96\xb2\fkC\x93H\xbfh\x9c\b`\x857\xd6\">c\xad\xc0bO\xba\xe2\xe1\t5\x9d\xcei\"2L\xcc\x13\x16\vh\xca\xe6C\x06\x97%\x9d\xd5-\x1fs\xe1j\xdc5\x92\xd0)%\xdf\xfa\xe8^\x9c\xd29\x8clg\xc8\x7f\xb5\xb1&\x02\xf1E\xb4\x84\xbeE\x91)f\xe8\xb7\xe2\xf6`i\xc5m\xd7l\x1d\xc1\x12\x01<:kM\xe9\x99\xcd\xcd\xc8\x85Z\xee47\xdc\xc8u\x80\xcf\xbeTo\xbb\xfb\xc0\xebV\xd8\xbb\xbe\xa2\x90J|s\xc2', 0x0, 0xc3, &(0x7f0000000480)=""/195, 0x0, 0x0, [0x42], 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0}, 0x70) [ 61.436934][ T8276] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.498172][ T8278] chnl_net:caif_netlink_parms(): no params data found [ 61.522714][ T8284] IPVS: ftp: loaded support on port[0] = 21 [ 61.532155][ T8286] IPVS: ftp: loaded support on port[0] = 21 [ 61.532796][ T8276] netdevsim netdevsim0 netdevsim2: renamed from eth2 19:36:00 executing program 5: bpf$PROG_LOAD(0x5, &(0x7f000000e000)={0xa, 0x4, &(0x7f0000000040)=@framed={{0xffffffb4, 0x0, 0x0, 0x0, 0x0, 0xffffffdd}, [@ldst={0x3, 0x5, 0x3, 0x1c10a1, 0x0, 0x42}]}, &(0x7f0000003ff6)='G\x00', 0x5, 0xfd90, &(0x7f000000cf3d)=""/195}, 0x48) [ 61.649464][ T8276] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.793035][ T8278] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.803295][ T8278] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.814824][ T8278] device bridge_slave_0 entered promiscuous mode [ 61.825197][ T8278] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.832407][ T8278] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.841314][ T8278] device bridge_slave_1 entered promiscuous mode [ 61.863260][ T8278] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.880904][ T8288] IPVS: ftp: loaded support on port[0] = 21 [ 61.920536][ T8278] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.992792][ T8286] chnl_net:caif_netlink_parms(): no params data found [ 62.019581][ T8278] team0: Port device team_slave_0 added [ 62.030983][ T8281] chnl_net:caif_netlink_parms(): no params data found [ 62.071185][ T8278] team0: Port device team_slave_1 added [ 62.099191][ T8281] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.107800][ T8281] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.116225][ T8281] device bridge_slave_0 entered promiscuous mode [ 62.167219][ T8278] device hsr_slave_0 entered promiscuous mode [ 62.225021][ T8278] device hsr_slave_1 entered promiscuous mode [ 62.284991][ T8278] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.308560][ T8281] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.315848][ T8281] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.323617][ T8281] device bridge_slave_1 entered promiscuous mode [ 62.341947][ T8286] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.349508][ T8286] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.357485][ T8286] device bridge_slave_0 entered promiscuous mode [ 62.365934][ T8286] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.373001][ T8286] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.381226][ T8286] device bridge_slave_1 entered promiscuous mode [ 62.407117][ T8278] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 62.470918][ T8278] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 62.547841][ T8278] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 62.608742][ T8278] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 62.657202][ T8281] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.669919][ T8281] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.689557][ T8286] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.701209][ T8286] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.736181][ T8281] team0: Port device team_slave_0 added [ 62.769828][ T8288] chnl_net:caif_netlink_parms(): no params data found [ 62.782462][ T8281] team0: Port device team_slave_1 added [ 62.798064][ T8286] team0: Port device team_slave_0 added [ 62.855683][ T8284] chnl_net:caif_netlink_parms(): no params data found [ 62.869531][ T8286] team0: Port device team_slave_1 added [ 62.926889][ T8281] device hsr_slave_0 entered promiscuous mode [ 62.984397][ T8281] device hsr_slave_1 entered promiscuous mode [ 63.024211][ T8281] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.043434][ T8288] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.052636][ T8288] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.062482][ T8288] device bridge_slave_0 entered promiscuous mode [ 63.071084][ T8288] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.079212][ T8288] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.087274][ T8288] device bridge_slave_1 entered promiscuous mode [ 63.113830][ T8276] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.207261][ T8286] device hsr_slave_0 entered promiscuous mode [ 63.254393][ T8286] device hsr_slave_1 entered promiscuous mode [ 63.294208][ T8286] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.308926][ T8284] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.317139][ T8284] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.325904][ T8284] device bridge_slave_0 entered promiscuous mode [ 63.335078][ T8288] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.351871][ T8288] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.378542][ T8284] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.386407][ T8284] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.394715][ T8284] device bridge_slave_1 entered promiscuous mode [ 63.416660][ T8284] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.434457][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.444691][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.459791][ T8276] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.477905][ T8288] team0: Port device team_slave_0 added [ 63.489821][ T8284] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.501457][ T8281] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 63.546724][ T8288] team0: Port device team_slave_1 added [ 63.571480][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.581150][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.594394][ T25] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.601560][ T25] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.610099][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.619861][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.629018][ T25] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.636134][ T25] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.643794][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.653832][ T8281] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 63.706479][ T8278] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.733689][ T8284] team0: Port device team_slave_0 added [ 63.742983][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.752401][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.765166][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.775438][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.784750][ T8281] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 63.847468][ T8281] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 63.906405][ T8286] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 63.987109][ T8288] device hsr_slave_0 entered promiscuous mode [ 64.025848][ T8288] device hsr_slave_1 entered promiscuous mode [ 64.064231][ T8288] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.073708][ T8284] team0: Port device team_slave_1 added [ 64.085501][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.095048][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.105930][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.122959][ T8286] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 64.198037][ T8286] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 64.259364][ T8286] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 64.321510][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.331301][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.340536][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.349178][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.359617][ T8276] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.385355][ T8278] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.409335][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.417500][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.426696][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.435088][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.497245][ T8284] device hsr_slave_0 entered promiscuous mode [ 64.567189][ T8284] device hsr_slave_1 entered promiscuous mode [ 64.604209][ T8284] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.614867][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.624134][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.634431][ T3014] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.641570][ T3014] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.650618][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.659413][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.668441][ T3014] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.675680][ T3014] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.683538][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.695486][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.707922][ T8276] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.728557][ T8288] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 64.794958][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.807951][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.819048][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.833479][ T8288] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 64.895378][ T8288] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 64.936949][ T8288] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 65.011106][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.020793][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.033742][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.087573][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.102611][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.112345][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.128014][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 170.133893][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 170.140756][ C0] rcu: 0-....: (10499 ticks this GP) idle=7ee/1/0x4000000000000002 softirq=10989/10989 fqs=2760 [ 170.151522][ C0] (t=10500 jiffies g=6829 q=391) [ 170.156539][ C0] rcu: rcu_preempt kthread starved for 4956 jiffies! g6829 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 170.168225][ C0] rcu: RCU grace-period kthread stack dump: [ 170.174108][ C0] rcu_preempt R running task 29104 10 2 0x80004000 [ 170.181992][ C0] Call Trace: [ 170.185277][ C0] __schedule+0x9a0/0xcc0 [ 170.189602][ C0] schedule+0x181/0x210 [ 170.193746][ C0] schedule_timeout+0x14f/0x240 [ 170.198583][ C0] ? run_local_timers+0x120/0x120 [ 170.203604][ C0] rcu_gp_kthread+0xed8/0x1770 [ 170.208364][ C0] kthread+0x332/0x350 [ 170.212414][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 170.217509][ C0] ? kthread_blkcg+0xe0/0xe0 [ 170.222085][ C0] ret_from_fork+0x24/0x30 [ 170.226500][ C0] NMI backtrace for cpu 0 [ 170.230819][ C0] CPU: 0 PID: 8297 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0 [ 170.239037][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 170.249074][ C0] Call Trace: [ 170.252341][ C0] [ 170.255179][ C0] dump_stack+0x1fb/0x318 [ 170.259670][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 170.264503][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 170.270642][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 170.276694][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 170.282661][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 170.288540][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 170.293640][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 170.298826][ C0] ? trace_hardirqs_off+0x74/0x80 [ 170.303848][ C0] update_process_times+0x12d/0x180 [ 170.309046][ C0] tick_sched_timer+0x263/0x420 [ 170.313880][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 170.319411][ C0] __hrtimer_run_queues+0x403/0x840 [ 170.324610][ C0] hrtimer_interrupt+0x38c/0xda0 [ 170.329551][ C0] ? debug_smp_processor_id+0x9/0x20 [ 170.334825][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 170.340358][ C0] apic_timer_interrupt+0xf/0x20 [ 170.345283][ C0] [ 170.348205][ C0] RIP: 0010:__memcg_kmem_uncharge+0x8/0x2e0 [ 170.354083][ C0] Code: 07 00 74 12 48 81 c3 08 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 [ 170.373684][ C0] RSP: 0018:ffffc90002257970 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 170.382091][ C0] RAX: ffffffff81486ea4 RBX: ffffea00023dc7c0 RCX: ffff88809948a040 [ 170.390047][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00023dc7c0 [ 170.398005][ C0] RBP: ffffc90002257980 R08: 000000000003a768 R09: ffffed10115ab2c7 [ 170.406026][ C0] R10: ffffed10115ab2c7 R11: 0000000000000000 R12: ffff8880a4aaeea0 [ 170.413984][ C0] R13: dffffc0000000000 R14: 1ffff11014955dd4 R15: ffff88808ad59628 [ 170.421964][ C0] ? free_thread_stack+0x124/0x590 [ 170.427068][ C0] free_thread_stack+0x12e/0x590 [ 170.431991][ C0] put_task_stack+0xa3/0x130 [ 170.436568][ C0] finish_task_switch+0x3f1/0x550 [ 170.441591][ C0] __schedule+0x9a8/0xcc0 [ 170.446081][ C0] ? ___preempt_schedule+0x16/0x18 [ 170.451208][ C0] preempt_schedule+0xdb/0x120 [ 170.455969][ C0] ___preempt_schedule+0x16/0x18 [ 170.460898][ C0] ? clear_huge_page+0x29f/0x8a0 [ 170.465819][ C0] ? clear_huge_page+0x2b8/0x8a0 [ 170.470743][ C0] clear_huge_page+0x2bd/0x8a0 [ 170.475500][ C0] __do_huge_pmd_anonymous_page+0x21a/0x1010 [ 170.481477][ C0] do_huge_pmd_anonymous_page+0x91a/0xe50 [ 170.487191][ C0] handle_mm_fault+0x2017/0x2890 [ 170.492136][ C0] do_user_addr_fault+0x589/0xaf0 [ 170.497160][ C0] __do_page_fault+0xd3/0x1f0 [ 170.501827][ C0] do_page_fault+0x99/0xb0 [ 170.506232][ C0] page_fault+0x39/0x40 [ 170.510373][ C0] RIP: 0033:0x4418c1 [ 170.514258][ C0] Code: 8d 15 43 c1 0a 00 8b 0c 8a 8b 04 82 29 c8 c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 fa 20 48 89 f8 73 77 f6 c2 01 74 0b 0f b6 0e <88> 0f 48 ff c6 48 ff c7 f6 c2 02 74 12 0f b7 0e 66 89 0f 48 83 c6 [ 170.533871][ C0] RSP: 002b:00007ffcdaedba88 EFLAGS: 00010202 [ 170.539946][ C0] RAX: 0000000020000100 RBX: 0000000000000000 RCX: 000000000000002f [ 170.547917][ C0] RDX: 000000000000000f RSI: 0000000000760020 RDI: 0000000020000100 [ 170.555882][ C0] RBP: 0000000000760000 R08: 0000000000000000 R09: 0000000000000004 [ 170.563843][ C0] R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000001 [ 170.571802][ C0] R13: 00007ffcdaedbc70 R14: 0000000000760008 R15: 00007ffcdaedbc80