[ 42.780228][ T25] audit: type=1800 audit(1575416855.561:26): pid=7953 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.831108][ T25] audit: type=1800 audit(1575416855.571:27): pid=7953 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 42.855672][ T25] audit: type=1800 audit(1575416855.571:28): pid=7953 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 43.544169][ T25] audit: type=1800 audit(1575416856.351:29): pid=7953 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.54' (ECDSA) to the list of known hosts. 2019/12/03 23:47:45 fuzzer started 2019/12/03 23:47:47 dialing manager at 10.128.0.26:42111 2019/12/03 23:47:47 syscalls: 2689 2019/12/03 23:47:47 code coverage: enabled 2019/12/03 23:47:47 comparison tracing: enabled 2019/12/03 23:47:47 extra coverage: extra coverage is not supported by the kernel 2019/12/03 23:47:47 setuid sandbox: enabled 2019/12/03 23:47:47 namespace sandbox: enabled 2019/12/03 23:47:47 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 23:47:47 fault injection: enabled 2019/12/03 23:47:47 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 23:47:47 net packet injection: enabled 2019/12/03 23:47:47 net device setup: enabled 2019/12/03 23:47:47 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 23:47:47 devlink PCI setup: PCI device 0000:00:10.0 is not available 23:47:48 executing program 0: perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 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) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000000200)={0x26, 'hash\x00', 0x0, 0x0, 'sha1-generic\x00'}, 0x58) r1 = accept$alg(r0, 0x0, 0x0) socket$netlink(0x10, 0x3, 0x0) sendmmsg(r1, &(0x7f0000007f00)=[{{&(0x7f00000056c0)=@can, 0x3000, &(0x7f00000000c0)}}, {{&(0x7f0000005900)=@pppoe={0x18, 0x0, {0x0, @link_local, 'syzkaller0\x00'}}, 0x80, &(0x7f0000007ac0), 0x1a9, &(0x7f0000007b00)}}], 0x3fffffffffffe0d, 0x0) 23:47:48 executing program 1: perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 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, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) clone(0x2102001ffc, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) io_setup(0x0, 0x0) mq_open(0x0, 0x0, 0x0, 0x0) ppoll(0x0, 0x0, &(0x7f00000000c0)={0x0, 0x1c9c380}, 0x0, 0x0) socket$packet(0x11, 0x0, 0x300) r0 = syz_open_dev$sg(&(0x7f0000000300)='/dev/sg#\x00', 0x0, 0x0) ioctl$SCSI_IOCTL_SEND_COMMAND(r0, 0x1, &(0x7f0000000040)={0x4, 0x0, 0x37}) ioctl$SCSI_IOCTL_BENCHMARK_COMMAND(0xffffffffffffffff, 0x3) socket$inet6(0x10, 0x0, 0x0) syzkaller login: [ 55.586644][ T8116] IPVS: ftp: loaded support on port[0] = 21 [ 55.705847][ T8116] chnl_net:caif_netlink_parms(): no params data found [ 55.776769][ T8116] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.800188][ T8116] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.808152][ T8116] device bridge_slave_0 entered promiscuous mode 23:47:48 executing program 2: unshare(0x2040400) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) getsockopt$sock_cred(r0, 0x1, 0x11, &(0x7f0000caaffb)={0x0, 0x0}, &(0x7f0000cab000)=0x1) setresuid(0x0, r1, 0x0) ioctl$sock_SIOCDELDLCI(r0, 0x894c, 0x0) [ 55.822572][ T8119] IPVS: ftp: loaded support on port[0] = 21 [ 55.831334][ T8116] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.838459][ T8116] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.849171][ T8116] device bridge_slave_1 entered promiscuous mode [ 55.922715][ T8116] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.946677][ T8116] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.034147][ T8116] team0: Port device team_slave_0 added [ 56.047835][ T8119] chnl_net:caif_netlink_parms(): no params data found [ 56.072638][ T8116] team0: Port device team_slave_1 added 23:47:48 executing program 3: r0 = socket$inet6(0xa, 0x5, 0x0) listen(r0, 0x1d7) sendmmsg$inet6(r0, &(0x7f0000005480)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=ANY=[@ANYBLOB="18000000000000008400000001a5f8b8ee3147720b53d1d6"], 0x18}}], 0x1, 0x0) [ 56.106804][ T8122] IPVS: ftp: loaded support on port[0] = 21 [ 56.224495][ T8116] device hsr_slave_0 entered promiscuous mode 23:47:49 executing program 4: semget(0x2, 0xb772d2c3ec7a130b, 0x0) [ 56.330403][ T8116] device hsr_slave_1 entered promiscuous mode [ 56.414340][ T8119] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.424894][ T8119] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.450394][ T8119] device bridge_slave_0 entered promiscuous mode [ 56.484425][ T8119] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.491692][ T8119] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.500762][ T8119] device bridge_slave_1 entered promiscuous mode [ 56.524404][ T8124] IPVS: ftp: loaded support on port[0] = 21 23:47:49 executing program 5: sendmsg(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000980), 0x0, 0x0, 0x0, 0x20000001}, 0x0) ioctl$PERF_EVENT_IOC_SET_FILTER(0xffffffffffffffff, 0x89f2, &(0x7f0000000080)='ip6tnl0\x00') sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000b00)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000780)=[{0x60, 0x0, 0x0, "ffb15a1de13306f9a55c6cbad0a8f523bb4d00cf7e40dc55bda1864feb8ce6835a86cde91ed8eb85b98c8cdfdc28028c34ad4b448f12a8b3e09a1f36a7cc93539d73f03991f666ce9f"}, {0x108, 0x0, 0x0, "326b6544416a940cb25f5b6de7878a8bee42225b76c0f0157b0dc419a022bcbafff89eea4656cb5f9b2ebb79b23d045343183921a4dd11cacea73ad252befb205b628246bfa8cbab8ce26a16162afb46c7fbb1ff0139d5472f0a6b193e15a4a5ff679461929dfef413fd7184401f3432e51743526d1a409c7bf5fa7be1e0c4ede824c3b8da282aaa9a25526c43b868c0131f0f608fd6ce16d3898fc46ef134d1dd0a340785db82443cb534747ffe499b23af03fb0ef1f0f6c2269ce39d1dd0e202b8d9adcb9f6e6fe67cf6578a9ce4347fb43ac7f78c51cd54bfc9a83e4fe248f4b57406d319f25e0566b649cedd3b951d"}, {0xb0, 0x0, 0x0, "4887386d9cbb40faf11d0f0cd6b9cc11208c598b042384d7636a90dac019c54f07f33f91aca750c6da611d6a93dfca551e81b75a9c620591d8f64f2f61de06206019e16767edf476d41dec834eec301db78f08170e5c78997a33cc6bafe27713c9be9aa960351e6d4527acff7ece31bb0a80f67767f0a6ba62b84be7ab9734fac0075211ca822d546dac08967222fd7e10f243dccfc050f6c18dc3fd6a"}], 0x218}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f00000004c0)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_SET_FILTER(r0, 0x89f1, &(0x7f0000000080)) [ 56.530947][ T8126] IPVS: ftp: loaded support on port[0] = 21 [ 56.547267][ T8116] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.649055][ T8116] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.702279][ T8119] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.714356][ T8119] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.732694][ T8116] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.783429][ T8116] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.898046][ T8119] team0: Port device team_slave_0 added [ 56.909885][ T8119] team0: Port device team_slave_1 added [ 56.924932][ T8128] IPVS: ftp: loaded support on port[0] = 21 [ 56.978139][ T8122] chnl_net:caif_netlink_parms(): no params data found [ 57.042650][ T8119] device hsr_slave_0 entered promiscuous mode [ 57.100398][ T8119] device hsr_slave_1 entered promiscuous mode [ 57.160280][ T8119] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.248011][ T8124] chnl_net:caif_netlink_parms(): no params data found [ 57.256656][ T8122] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.265939][ T8122] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.273680][ T8122] device bridge_slave_0 entered promiscuous mode [ 57.281587][ T8122] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.288637][ T8122] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.296349][ T8122] device bridge_slave_1 entered promiscuous mode [ 57.386249][ T8122] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.395861][ T8119] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 57.453276][ T8119] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 57.514143][ T8119] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.562992][ T8119] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 57.607298][ T8122] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.637254][ T8126] chnl_net:caif_netlink_parms(): no params data found [ 57.648610][ T8124] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.655979][ T8124] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.663703][ T8124] device bridge_slave_0 entered promiscuous mode [ 57.671320][ T8124] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.678350][ T8124] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.686506][ T8124] device bridge_slave_1 entered promiscuous mode [ 57.716298][ T8124] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.729077][ T8124] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.747301][ T8122] team0: Port device team_slave_0 added [ 57.768532][ T8122] team0: Port device team_slave_1 added [ 57.776940][ T8128] chnl_net:caif_netlink_parms(): no params data found [ 57.823927][ T8126] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.831772][ T8126] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.839231][ T8126] device bridge_slave_0 entered promiscuous mode [ 57.849483][ T8124] team0: Port device team_slave_0 added [ 57.912952][ T8122] device hsr_slave_0 entered promiscuous mode [ 57.960423][ T8122] device hsr_slave_1 entered promiscuous mode [ 58.000195][ T8122] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.007866][ T8126] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.015143][ T8126] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.023476][ T8126] device bridge_slave_1 entered promiscuous mode [ 58.041293][ T8126] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.051670][ T8124] team0: Port device team_slave_1 added [ 58.058332][ T8128] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.066130][ T8128] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.073791][ T8128] device bridge_slave_0 entered promiscuous mode [ 58.081560][ T8128] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.088593][ T8128] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.096362][ T8128] device bridge_slave_1 entered promiscuous mode [ 58.123566][ T8116] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.132884][ T8126] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.156404][ T8122] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 58.206242][ T8122] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 58.255756][ T8122] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 58.324119][ T8128] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.343473][ T8116] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.402574][ T8124] device hsr_slave_0 entered promiscuous mode [ 58.440736][ T8124] device hsr_slave_1 entered promiscuous mode [ 58.480189][ T8124] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.489036][ T8122] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 58.533426][ T8128] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.544367][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.552753][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.563249][ T8126] team0: Port device team_slave_0 added [ 58.596477][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.605409][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.614070][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.621225][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.629780][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.638482][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.646804][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.653874][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.662590][ T8126] team0: Port device team_slave_1 added [ 58.671965][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.688912][ T8124] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 58.746253][ T8124] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 58.810520][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.820204][ T8128] team0: Port device team_slave_0 added [ 58.827291][ T8128] team0: Port device team_slave_1 added [ 58.838899][ T8124] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 58.882540][ T8124] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 58.971649][ T8126] device hsr_slave_0 entered promiscuous mode [ 59.020469][ T8126] device hsr_slave_1 entered promiscuous mode [ 59.100405][ T8126] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.122620][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.132555][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.141588][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.149775][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.159293][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.167696][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.176034][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.184213][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.192450][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.202427][ T8119] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.209172][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.273583][ T8128] device hsr_slave_0 entered promiscuous mode [ 59.340493][ T8128] device hsr_slave_1 entered promiscuous mode [ 59.400236][ T8128] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.415990][ T8116] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.476617][ T2947] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.485718][ T2947] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.495749][ T2947] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.503489][ T2947] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.513612][ T8119] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.524102][ T8126] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 59.601868][ T8126] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 59.641770][ T8128] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 59.695916][ T8116] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.705361][ T8126] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 59.732346][ T8128] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 59.774977][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.783908][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.792623][ T8129] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.799658][ T8129] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.807198][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.815743][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.824049][ T8129] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.831107][ T8129] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.838472][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.864864][ T8126] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 59.901532][ T8128] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 59.932895][ T8128] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 59.973876][ T8122] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.980844][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.988638][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.997806][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.006452][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.015412][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.024024][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.033885][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.041608][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.049720][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.075502][ T8122] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.099695][ T8119] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.116898][ T8119] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.143404][ T2947] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.157373][ T2947] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.165483][ T2947] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.181390][ T2947] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 165.120042][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 165.126801][ C1] rcu: 1-...!: (10499 ticks this GP) idle=4e2/1/0x4000000000000002 softirq=11073/11073 fqs=40 [ 165.137347][ C1] (t=10501 jiffies g=6153 q=270) [ 165.142360][ C1] rcu: rcu_preempt kthread starved for 10422 jiffies! g6153 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 165.153440][ C1] rcu: RCU grace-period kthread stack dump: [ 165.159312][ C1] rcu_preempt R running task 29104 10 2 0x80004000 [ 165.167213][ C1] Call Trace: [ 165.170494][ C1] __schedule+0x9a0/0xcc0 [ 165.174815][ C1] schedule+0x181/0x210 [ 165.178958][ C1] schedule_timeout+0x14f/0x240 [ 165.183796][ C1] ? run_local_timers+0x120/0x120 [ 165.188808][ C1] rcu_gp_kthread+0xed8/0x1770 [ 165.193564][ C1] kthread+0x332/0x350 [ 165.197618][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 165.202711][ C1] ? kthread_blkcg+0xe0/0xe0 [ 165.207287][ C1] ret_from_fork+0x24/0x30 [ 165.211701][ C1] NMI backtrace for cpu 1 [ 165.216016][ C1] CPU: 1 PID: 8122 Comm: syz-executor.2 Not tainted 5.4.0-syzkaller #0 [ 165.224230][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.234268][ C1] Call Trace: [ 165.237537][ C1] [ 165.240377][ C1] dump_stack+0x1fb/0x318 [ 165.244696][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 165.249531][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 165.255671][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 165.261808][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 165.267773][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 165.273653][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 165.278756][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 165.284029][ C1] ? trace_hardirqs_off+0x74/0x80 [ 165.289038][ C1] update_process_times+0x12d/0x180 [ 165.294223][ C1] tick_sched_timer+0x263/0x420 [ 165.299056][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 165.304586][ C1] __hrtimer_run_queues+0x403/0x840 [ 165.310132][ C1] hrtimer_interrupt+0x38c/0xda0 [ 165.315071][ C1] ? debug_smp_processor_id+0x9/0x20 [ 165.320343][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 165.325871][ C1] apic_timer_interrupt+0xf/0x20 [ 165.330787][ C1] [ 165.333712][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 [ 165.339848][ C1] Code: 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 00 01 1f 00 75 2c <8b> 91 80 13 00 00 83 fa 02 75 21 48 8b 91 88 13 00 00 48 8b 32 48 [ 165.359546][ C1] RSP: 0018:ffffc900021874f0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 165.367938][ C1] RAX: ffffffff81487433 RBX: 0000000000000000 RCX: ffff8880975f6400 [ 165.375907][ C1] RDX: 0000000000000001 RSI: 00000000fffffffc RDI: ffffea00024f6240 [ 165.383883][ C1] RBP: ffffc90002187518 R08: 000000000003a768 R09: ffffed10120662cf [ 165.391933][ C1] R10: ffffed10120662cf R11: 0000000000000000 R12: dffffc0000000000 [ 165.399897][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff888090331668 [ 165.407875][ C1] ? mod_memcg_page_state+0x123/0x190 [ 165.413240][ C1] ? mod_memcg_page_state+0x123/0x190 [ 165.418607][ C1] free_thread_stack+0x168/0x590 [ 165.423533][ C1] put_task_stack+0xa3/0x130 [ 165.428108][ C1] finish_task_switch+0x3f1/0x550 [ 165.433121][ C1] __schedule+0x9a8/0xcc0 [ 165.437445][ C1] ? ___preempt_schedule+0x16/0x18 [ 165.442561][ C1] preempt_schedule+0xdb/0x120 [ 165.447314][ C1] ___preempt_schedule+0x16/0x18 [ 165.452239][ C1] try_to_wake_up+0xe78/0x1050 [ 165.456998][ C1] wake_up_q+0x8c/0xe0 [ 165.461052][ C1] __mutex_unlock_slowpath+0x586/0x5b0 [ 165.466498][ C1] mutex_unlock+0x1b/0x30 [ 165.470811][ C1] __rtnl_unlock+0x2c/0xa0 [ 165.475215][ C1] netdev_run_todo+0xe5/0xe10 [ 165.479887][ C1] rtnetlink_rcv_msg+0x890/0xd40 [ 165.484825][ C1] ? rcu_lock_release+0x9/0x30 [ 165.489632][ C1] ? rcu_lock_release+0x9/0x30 [ 165.494387][ C1] ? rcu_lock_release+0x9/0x30 [ 165.499141][ C1] netlink_rcv_skb+0x19e/0x3d0 [ 165.503889][ C1] ? rtnetlink_bind+0x80/0x80 [ 165.508555][ C1] rtnetlink_rcv+0x1c/0x20 [ 165.512958][ C1] netlink_unicast+0x767/0x920 [ 165.517713][ C1] netlink_sendmsg+0xa21/0xd40 [ 165.522471][ C1] ? netlink_getsockopt+0x9f0/0x9f0 [ 165.527654][ C1] __sys_sendto+0x442/0x5e0 [ 165.532153][ C1] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 165.538204][ C1] ? prepare_exit_to_usermode+0x221/0x5b0 [ 165.543909][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 165.549379][ C1] __x64_sys_sendto+0xe5/0x100 [ 165.554140][ C1] do_syscall_64+0xf7/0x1c0 [ 165.558635][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.564517][ C1] RIP: 0033:0x414373 [ 165.568418][ C1] Code: ff 0f 83 b0 19 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d fd 40 66 00 00 75 17 49 89 ca b8 2c 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 81 19 00 00 c3 48 83 ec 08 e8 87 fa ff ff [ 165.588020][ C1] RSP: 002b:00007ffd6c0b16f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 165.596544][ C1] RAX: ffffffffffffffda RBX: 0000000000a72200 RCX: 0000000000414373 [ 165.604511][ C1] RDX: 000000000000002c RSI: 0000000000a72250 RDI: 0000000000000003 [ 165.612472][ C1] RBP: 0000000000000000 R08: 00007ffd6c0b1700 R09: 000000000000000c [ 165.620443][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 165.628753][ C1] R13: 0000000000000000 R14: 0000000000a72250 R15: 0000000000000003