Warning: Permanently added '10.128.0.242' (ECDSA) to the list of known hosts. 2019/12/03 17:23:08 fuzzer started 2019/12/03 17:23:09 dialing manager at 10.128.0.26:42111 2019/12/03 17:23:09 syscalls: 2689 2019/12/03 17:23:09 code coverage: enabled 2019/12/03 17:23:09 comparison tracing: enabled 2019/12/03 17:23:09 extra coverage: extra coverage is not supported by the kernel 2019/12/03 17:23:09 setuid sandbox: enabled 2019/12/03 17:23:09 namespace sandbox: enabled 2019/12/03 17:23:09 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 17:23:09 fault injection: enabled 2019/12/03 17:23:09 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 17:23:09 net packet injection: enabled 2019/12/03 17:23:09 net device setup: enabled 2019/12/03 17:23:09 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 17:23:09 devlink PCI setup: PCI device 0000:00:10.0 is not available 17:23:10 executing program 0: syz_mount_image$gfs2(&(0x7f0000000000)='gfs2\x00', &(0x7f00000000c0)='./file0\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)={[{@hostdata={'hostdata', 0x3d, 'GPL'}}, {@lockproto_nolock='lockproto=lock_nolock'}, {@locktable={'locktable', 0x3d, 'errors=withdraw'}}]}) 17:23:11 executing program 1: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89e3, &(0x7f0000000000)={0x0, 0x0, 0xc}) syzkaller login: [ 62.488273][ T8323] IPVS: ftp: loaded support on port[0] = 21 17:23:11 executing program 2: r0 = socket$rds(0x15, 0x5, 0x0) bind$rds(r0, &(0x7f0000000180)={0x2, 0x0, @loopback}, 0x10) sendmsg$rds(r0, &(0x7f0000001600)={&(0x7f0000000000)={0x2, 0x0, @remote}, 0x10, &(0x7f0000000100), 0x0, &(0x7f0000000780)=[@rdma_args={0x24, 0x114, 0x1, {{}, {&(0x7f0000000040)=""/156, 0x80305}, &(0x7f00000006c0)=[{&(0x7f0000000100)=""/44, 0x2c}, {&(0x7f00000001c0)=""/67, 0x43}, {&(0x7f0000000240)=""/198, 0xc6}, {&(0x7f0000000140)=""/15, 0xf}, {&(0x7f0000000340)=""/54, 0x7ffff}, {&(0x7f0000000380)=""/42, 0x2a}, {&(0x7f00000003c0)=""/77, 0x4d}, {&(0x7f0000000440)=""/244, 0xf4}, {&(0x7f0000000540)=""/219, 0xdb}], 0x7}}], 0x48}, 0x0) [ 62.666431][ T8323] chnl_net:caif_netlink_parms(): no params data found [ 62.702716][ T8326] IPVS: ftp: loaded support on port[0] = 21 [ 62.825827][ T8323] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.847505][ T8323] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.856004][ T8323] device bridge_slave_0 entered promiscuous mode [ 62.872616][ T8323] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.882632][ T8323] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.891609][ T8323] device bridge_slave_1 entered promiscuous mode [ 62.920476][ T8328] IPVS: ftp: loaded support on port[0] = 21 [ 62.952357][ T8323] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.965352][ T8323] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.018673][ T8326] chnl_net:caif_netlink_parms(): no params data found [ 63.031813][ T8323] team0: Port device team_slave_0 added 17:23:11 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0xa, 0x1, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000200)={'syz_tun\x00', 0x0}) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000001c0)=@ipv6_newaddr={0x40, 0x14, 0x509, 0x0, 0x0, {0xa, 0x0, 0x0, 0x0, r2}, [@IFA_CACHEINFO={0x14, 0x9, {0x2}}, @IFA_LOCAL={0x14, 0x2, @local}]}, 0x40}}, 0x0) openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) [ 63.062753][ T8323] team0: Port device team_slave_1 added [ 63.102498][ T8326] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.118037][ T8326] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.126076][ T8326] device bridge_slave_0 entered promiscuous mode [ 63.200306][ T8323] device hsr_slave_0 entered promiscuous mode [ 63.268552][ T8323] device hsr_slave_1 entered promiscuous mode 17:23:12 executing program 4: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) syz_genetlink_get_family_id$tipc2(0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x3, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000000000/0x18000)=nil, 0x0, 0x0, 0x0, 0x0, 0x0) ioctl$KVM_REGISTER_COALESCED_MMIO(r1, 0x4010ae67, &(0x7f00000001c0)={0x0, 0x119000}) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000000000/0x18000)=nil, 0x0, 0x0, 0x60, 0x0, 0x0) ioctl$KVM_NMI(r2, 0xae9a) ioctl$KVM_RUN(r2, 0xae80, 0x0) [ 63.319391][ T8326] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.334008][ T8326] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.361859][ T8326] device bridge_slave_1 entered promiscuous mode [ 63.401250][ T8331] IPVS: ftp: loaded support on port[0] = 21 [ 63.524246][ T8326] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link 17:23:12 executing program 5: r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f00000000c0)=0x2000000000000074, 0x25d) bind$inet(r0, &(0x7f0000000280)={0x2, 0x4e23, @broadcast}, 0x10) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000000480)={0x1, &(0x7f0000000400)=[{0x6, 0x0, 0x0, 0xe8}]}, 0x10) setsockopt$inet_tcp_TLS_TX(r0, 0x6, 0x1, &(0x7f0000000040)=@gcm_256={{}, "018000da7d469c04", "02a839a6c7986edc3f8a6200c88e37de79b97525cedefaa0bded32e7d887ec99", "0000ef00", "00943f4aece800"}, 0x38) sendto$inet(r0, 0x0, 0x0, 0x200007fd, &(0x7f0000e68000)={0x2, 0x4e23, @local}, 0x10) writev(r0, &(0x7f0000000440)=[{&(0x7f00000002c0)="0a99b3e3930870dcd4c6d68e6abe088af4ccdbe6dc85ed63bcee4834cd53f8a19cfad53574230c17377bd7b3eb23d9008f0c69b08db538753bcf550f05d219f8c6ca03228dd8d293261ba079190f47d70c95a97fe5d4cb7511e180f73e8ef5e2f7ee4f47c1a036e37e87414e615396eeb918828e", 0x74}, {&(0x7f0000000840)="b5252522629f34a16eef84ce1b0063a44d2793e337dc2c6bb2d88107b89a1516610f2003d59c73b5c7e008a287d2a1d473414b1adeb4ca87742298b064ae974e919c80525175804799682d67fca4f9defe5754c03f", 0x55}], 0x2) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000000)='bbr\x00', 0x3) write$binfmt_script(r0, &(0x7f00000008c0)=ANY=[@ANYRES16], 0x14b) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) write$binfmt_misc(r1, &(0x7f0000000000)=ANY=[], 0xfffffecc) setsockopt$sock_int(r0, 0x1, 0x8, &(0x7f0000000600)=0xda9, 0x4) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = dup(r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) sendto$inet(r0, &(0x7f00000012c0)="0c268a927f1f6588b967481241ba7860f922f65ac618ded8974895abeaf4b4834ff922b3f1e0b02bd67aa03059bcecc7a95425a3a07e758044ab4ea6f7ae55d88fecf90b1a7511bf746bec66ba", 0xfe6a, 0x11, 0x0, 0x27) [ 63.571459][ T8326] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.603611][ T8328] chnl_net:caif_netlink_parms(): no params data found [ 63.633152][ T8323] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.725325][ T8323] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.801548][ T8323] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.851852][ T8326] team0: Port device team_slave_0 added [ 63.862795][ T8326] team0: Port device team_slave_1 added [ 63.877138][ T8335] IPVS: ftp: loaded support on port[0] = 21 [ 63.879137][ T8336] IPVS: ftp: loaded support on port[0] = 21 [ 63.900547][ T8323] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.040074][ T8326] device hsr_slave_0 entered promiscuous mode [ 64.077995][ T8326] device hsr_slave_1 entered promiscuous mode [ 64.117624][ T8326] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.137883][ T8328] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.144995][ T8328] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.154118][ T8328] device bridge_slave_0 entered promiscuous mode [ 64.163889][ T8328] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.171144][ T8328] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.179475][ T8328] device bridge_slave_1 entered promiscuous mode [ 64.246365][ T8328] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.287749][ T8328] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.309331][ T8331] chnl_net:caif_netlink_parms(): no params data found [ 64.375400][ T8328] team0: Port device team_slave_0 added [ 64.397976][ T8326] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 64.439163][ T8328] team0: Port device team_slave_1 added [ 64.464976][ T8326] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 64.522002][ T8326] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 64.572054][ T8326] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 64.621614][ T8335] chnl_net:caif_netlink_parms(): no params data found [ 64.636991][ T8331] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.645525][ T8331] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.654063][ T8331] device bridge_slave_0 entered promiscuous mode [ 64.694896][ T8331] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.702504][ T8331] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.711463][ T8331] device bridge_slave_1 entered promiscuous mode [ 64.725064][ T8323] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.830773][ T8328] device hsr_slave_0 entered promiscuous mode [ 64.877732][ T8328] device hsr_slave_1 entered promiscuous mode [ 64.947571][ T8328] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.957085][ T8335] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.964570][ T8335] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.972795][ T8335] device bridge_slave_0 entered promiscuous mode [ 64.985380][ T8335] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.992600][ T8335] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.000453][ T8335] device bridge_slave_1 entered promiscuous mode [ 65.030418][ T8331] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.045346][ T8336] chnl_net:caif_netlink_parms(): no params data found [ 65.061638][ T8323] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.074801][ T8331] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.090528][ T8335] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.100685][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.109567][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.148018][ T8331] team0: Port device team_slave_0 added [ 65.155566][ T8335] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.190393][ T8336] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.203087][ T8336] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.211140][ T8336] device bridge_slave_0 entered promiscuous mode [ 65.221937][ T8337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.231289][ T8337] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.240176][ T8337] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.247656][ T8337] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.256769][ T8337] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.266594][ T8331] team0: Port device team_slave_1 added [ 65.284150][ T8328] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 65.329668][ T8336] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.336781][ T8336] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.346978][ T8336] device bridge_slave_1 entered promiscuous mode [ 65.358835][ T3459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.371322][ T3459] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.380139][ T3459] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.387396][ T3459] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.414467][ T8335] team0: Port device team_slave_0 added [ 65.420971][ T8328] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 65.481964][ T8328] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 65.544997][ T8328] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 65.641708][ T8331] device hsr_slave_0 entered promiscuous mode [ 65.697890][ T8331] device hsr_slave_1 entered promiscuous mode [ 65.738028][ T8331] debugfs: Directory 'hsr0' with parent '/' already present! [ 65.747228][ T8335] team0: Port device team_slave_1 added [ 65.770702][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.780080][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.789665][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.798944][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.808130][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.818393][ T8336] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.831887][ T8336] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.866413][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.875212][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.884068][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.892917][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.912996][ T8326] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.936065][ T8336] team0: Port device team_slave_0 added [ 65.949168][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.957905][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.969022][ T8323] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.000290][ T8335] device hsr_slave_0 entered promiscuous mode [ 66.037852][ T8335] device hsr_slave_1 entered promiscuous mode [ 66.078115][ T8335] debugfs: Directory 'hsr0' with parent '/' already present! [ 66.090068][ T8336] team0: Port device team_slave_1 added [ 66.110407][ T8326] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.118706][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.126355][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.144188][ T8331] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 66.180109][ T8331] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 66.219895][ T8331] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 66.260622][ T8331] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 66.318412][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.326981][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.339043][ T44] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.346287][ T44] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.355189][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.364841][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.373807][ T44] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.380881][ T44] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.412069][ T8323] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.439207][ T8337] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.452766][ T8337] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.461183][ T8337] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.470429][ T8337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 66.479408][ T8337] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.488412][ T8337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 66.499248][ T8337] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.516760][ T8335] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 66.560004][ T8335] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 66.609492][ T8341] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.660082][ T8336] device hsr_slave_0 entered promiscuous mode [ 66.718601][ T8336] device hsr_slave_1 entered promiscuous mode [ 66.777434][ T8336] debugfs: Directory 'hsr0' with parent '/' already present! [ 66.791468][ T8335] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 66.854101][ T8335] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 66.932650][ T8328] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.976692][ T8342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.986424][ T8342] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.002071][ T8342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.011862][ T8342] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.025637][ T8342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.035812][ T8342] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.050586][ T8326] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 171.987279][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 171.994385][ C0] rcu: 0-...!: (10499 ticks this GP) idle=722/1/0x4000000000000002 softirq=10641/10641 fqs=38 [ 172.005002][ C0] (t=10500 jiffies g=6961 q=152) [ 172.010036][ C0] rcu: rcu_preempt kthread starved for 10421 jiffies! g6961 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 172.021828][ C0] rcu: RCU grace-period kthread stack dump: [ 172.027822][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 172.035931][ C0] Call Trace: [ 172.039421][ C0] __schedule+0x9a0/0xcc0 [ 172.044123][ C0] schedule+0x181/0x210 [ 172.048637][ C0] schedule_timeout+0x14f/0x240 [ 172.053586][ C0] ? run_local_timers+0x120/0x120 [ 172.058601][ C0] rcu_gp_kthread+0xed8/0x1770 [ 172.063361][ C0] kthread+0x332/0x350 [ 172.067421][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 172.072519][ C0] ? kthread_blkcg+0xe0/0xe0 [ 172.077184][ C0] ret_from_fork+0x24/0x30 [ 172.081604][ C0] NMI backtrace for cpu 0 [ 172.085923][ C0] CPU: 0 PID: 8345 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0 [ 172.094143][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 172.106228][ C0] Call Trace: [ 172.109506][ C0] [ 172.112347][ C0] dump_stack+0x1fb/0x318 [ 172.116667][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 172.121614][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 172.127760][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 172.133900][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 172.141721][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 172.147603][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 172.153332][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 172.158698][ C0] ? trace_hardirqs_off+0x74/0x80 [ 172.164077][ C0] update_process_times+0x12d/0x180 [ 172.169535][ C0] tick_sched_timer+0x263/0x420 [ 172.174391][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 172.179929][ C0] __hrtimer_run_queues+0x403/0x840 [ 172.185220][ C0] hrtimer_interrupt+0x38c/0xda0 [ 172.190340][ C0] ? debug_smp_processor_id+0x9/0x20 [ 172.195718][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 172.201773][ C0] apic_timer_interrupt+0xf/0x20 [ 172.206718][ C0] [ 172.210176][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x31/0x50 [ 172.216419][ C0] Code: 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> 8d 7e 01 8b 89 84 13 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89 [ 172.237188][ C0] RSP: 0018:ffffc900020074b8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 172.245769][ C0] RAX: ffffffff81487326 RBX: ffffea00029d5100 RCX: ffff8880a07ac040 [ 172.253950][ C0] RDX: ffffc90002049000 RSI: 000000000003ffff RDI: ffffea00029d5100 [ 172.261918][ C0] RBP: ffffc900020074e0 R08: 000000000003a768 R09: ffffed1012eacb2f [ 172.269881][ C0] R10: ffffed1012eacb2f R11: 0000000000000000 R12: ffff88809145c120 [ 172.277842][ C0] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff888097565968 [ 172.285825][ C0] ? mod_memcg_page_state+0x16/0x190 [ 172.291108][ C0] ? free_thread_stack+0x124/0x590 [ 172.296210][ C0] ? mod_memcg_page_state+0x16/0x190 [ 172.301485][ C0] free_thread_stack+0x168/0x590 [ 172.306509][ C0] put_task_stack+0xa3/0x130 [ 172.311178][ C0] finish_task_switch+0x3f1/0x550 [ 172.316571][ C0] __schedule+0x9a8/0xcc0 [ 172.320903][ C0] ? ___preempt_schedule+0x16/0x18 [ 172.326104][ C0] preempt_schedule+0xdb/0x120 [ 172.330945][ C0] ___preempt_schedule+0x16/0x18 [ 172.335970][ C0] __mutex_lock_common+0x50c/0x2e10 [ 172.341164][ C0] ? kernfs_add_one+0x56/0x670 [ 172.346190][ C0] ? do_raw_spin_unlock+0x136/0x260 [ 172.351764][ C0] ? security_kernfs_init_security+0x94/0xb0 [ 172.358580][ C0] ? __kernfs_new_node+0x4fd/0x680 [ 172.364301][ C0] mutex_lock_nested+0x1b/0x30 [ 172.369126][ C0] kernfs_add_one+0x56/0x670 [ 172.374008][ C0] kernfs_create_dir_ns+0x1c8/0x230 [ 172.379903][ C0] sysfs_create_dir_ns+0x10a/0x290 [ 172.385015][ C0] kobject_add_internal+0x528/0xc20 [ 172.390204][ C0] ? kfree+0x1d/0x200 [ 172.394268][ C0] kobject_init_and_add+0xb7/0x100 [ 172.399648][ C0] ? sprintf+0x71/0x90 [ 172.403730][ C0] ? vsnprintf+0x1b6e/0x1c00 [ 172.408470][ C0] ? vsnprintf+0x139/0x1c00 [ 172.413019][ C0] gfs2_sys_fs_add+0x170/0x320 [ 172.418129][ C0] ? snprintf+0x6f/0x90 [ 172.422488][ C0] gfs2_fill_super+0x11fa/0x3e10 [ 172.427431][ C0] ? vsnprintf+0x1b6e/0x1c00 [ 172.432029][ C0] ? snprintf+0x6f/0x90 [ 172.436272][ C0] ? __kasan_check_write+0x14/0x20 [ 172.441370][ C0] ? set_blocksize+0x15d/0x3a0 [ 172.446123][ C0] ? sb_set_blocksize+0xb7/0xf0 [ 172.450984][ C0] get_tree_bdev+0x378/0x590 [ 172.455610][ C0] ? gfs2_reconfigure+0xae0/0xae0 [ 172.461151][ C0] gfs2_get_tree+0x53/0x1f0 [ 172.465650][ C0] vfs_get_tree+0x8b/0x2a0 [ 172.470059][ C0] do_mount+0x16bb/0x24f0 [ 172.474478][ C0] ? copy_mount_options+0x308/0x3c0 [ 172.479694][ C0] ksys_mount+0xcc/0x100 [ 172.483940][ C0] __x64_sys_mount+0xbf/0xd0 [ 172.488528][ C0] do_syscall_64+0xf7/0x1c0 [ 172.493116][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 172.498996][ C0] RIP: 0033:0x45d0ca [ 172.502973][ C0] Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 4d 8c fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 2a 8c fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 172.526606][ C0] RSP: 002b:00007f8cbdffea88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 [ 172.535187][ C0] RAX: ffffffffffffffda RBX: 00007f8cbdffeb40 RCX: 000000000045d0ca [ 172.543146][ C0] RDX: 00007f8cbdffeae0 RSI: 00000000200000c0 RDI: 00007f8cbdffeb00 [ 172.551111][ C0] RBP: 0000000000000000 R08: 00007f8cbdffeb40 R09: 00007f8cbdffeae0 [ 172.559402][ C0] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003 [ 172.567373][ C0] R13: 00000000004caa15 R14: 00000000004e3e38 R15: 00000000ffffffff