syzkaller login: ps_root_recvmsgcb: failed to send message to pid 2781: Connection refused [ 249.007806][ T2674] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 249.037797][ T2674] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. ps_root_recvmsgcb: failed to send message to pid 2780: Connection refused ps_root_recvmsgcb: failed to send message to pid 2800: Connection refused ps_root_recvmsgcb: failed to send message to pid 2799: Connection refused Warning: Permanently added '[localhost]:44336' (ECDSA) to the list of known hosts. [ 281.121088][ T2830] warn_alloc: 1 callbacks suppressed [ 281.121428][ T2830] dhcpcd: vmalloc error: size 4096, vm_struct allocation failed, mode:0xcc0(GFP_KERNEL), nodemask=(null),cpuset=/,mems_allowed=0 [ 281.146822][ T2830] CPU: 0 PID: 2830 Comm: dhcpcd Tainted: G W 6.2.0-rc1-syzkaller #0 [ 281.148490][ T2830] Hardware name: riscv-virtio,qemu (DT) [ 281.149555][ T2830] Call Trace: [ 281.150476][ T2830] [] dump_backtrace+0x2e/0x3c [ 281.152075][ T2830] [] show_stack+0x34/0x40 [ 281.153500][ T2830] [] dump_stack_lvl+0xe0/0x14c [ 281.155673][ T2830] [] dump_stack+0x1c/0x24 [ 281.157239][ T2830] [] warn_alloc+0x168/0x22c [ 281.158655][ T2830] [] __vmalloc_node_range+0xb6c/0xdb4 [ 281.160230][ T2830] [] bpf_jit_alloc_exec+0x46/0x52 [ 281.161672][ T2830] [] bpf_jit_binary_alloc+0x96/0x13c [ 281.163158][ T2830] [] bpf_int_jit_compile+0x886/0xaa6 [ 281.164672][ T2830] [] bpf_prog_select_runtime+0x1a2/0x22e [ 281.166828][ T2830] [] bpf_migrate_filter+0x258/0x2be [ 281.168381][ T2830] [] bpf_prepare_filter+0x10e/0x1b4 [ 281.169954][ T2830] [] __get_filter+0x148/0x1a0 [ 281.171472][ T2830] [] sk_attach_filter+0x22/0x11a [ 281.172874][ T2830] [] sk_setsockopt+0x144e/0x270c [ 281.174475][ T2830] [] sock_setsockopt+0x48/0x58 [ 281.176692][ T2830] [] __sys_setsockopt+0x3f0/0x418 [ 281.178170][ T2830] [] sys_setsockopt+0x3a/0x4c [ 281.179571][ T2830] [] ret_from_syscall+0x0/0x2 [ 281.236514][ T2830] Mem-Info: [ 281.238047][ T2830] active_anon:694 inactive_anon:40 isolated_anon:0 [ 281.238047][ T2830] active_file:0 inactive_file:7049 isolated_file:0 [ 281.238047][ T2830] unevictable:768 dirty:5317 writeback:0 [ 281.238047][ T2830] slab_reclaimable:5294 slab_unreclaimable:18380 [ 281.238047][ T2830] mapped:1024 shmem:804 pagetables:97 [ 281.238047][ T2830] sec_pagetables:0 bounce:0 [ 281.238047][ T2830] kernel_misc_reclaimable:0 [ 281.238047][ T2830] free:279662 free_pcp:756 free_cma:4096 [ 281.242310][ T2830] Node 0 active_anon:2776kB inactive_anon:160kB active_file:0kB inactive_file:28196kB unevictable:3072kB isolated(anon):0kB isolated(file):0kB mapped:4096kB dirty:21268kB writeback:0kB shmem:3216kB writeback_tmp:0kB kernel_stack:4560kB pagetables:388kB sec_pagetables:0kB all_unreclaimable? no [ 281.249419][ T2830] Node 0 DMA32 free:1118648kB boost:0kB min:4656kB low:6012kB high:7368kB reserved_highatomic:0KB active_anon:2776kB inactive_anon:160kB active_file:0kB inactive_file:28196kB unevictable:3072kB writepending:21268kB present:2095104kB managed:1359004kB mlocked:0kB bounce:0kB free_pcp:2988kB local_pcp:2372kB free_cma:16384kB [ 281.253589][ T2830] lowmem_reserve[]: 0 0 0 [ 281.269205][ T2830] Node 0 DMA32: 128*4kB (UM) 55*8kB (UM) 74*16kB (UME) 53*32kB (UM) 11*64kB (UME) 4*128kB (UE) 2*256kB (UE) 2*512kB (UE) 0*1024kB 3*2048kB (EC) 270*4096kB (MC) = 1118648kB [ 281.293494][ T2830] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 281.306171][ T2830] Node 0 hugepages_total=4 hugepages_free=4 hugepages_surp=0 hugepages_size=2048kB [ 281.308090][ T2830] 7853 total pagecache pages [ 281.309305][ T2830] 0 pages in swap cache [ 281.310562][ T2830] Free swap = 0kB [ 281.311722][ T2830] Total swap = 0kB [ 281.312966][ T2830] 523776 pages RAM [ 281.314206][ T2830] 0 pages HighMem/MovableOnly [ 281.336294][ T2830] 184025 pages reserved [ 281.337808][ T2830] 4096 pages cma reserved ps_bpf_start_bpf: bpf_open: Unknown error 524 ps_root_recvmsg: Unknown error 524 ps_bpf_start_bpf: bpf_open: Unknown error 524 ps_root_recvmsg: Unknown error 524 ps_bpf_start_bpf: bpf_open: Unknown error 524 ps_root_recvmsg: Unknown error 524 ps_bpf_start_bpf: bpf_open: Unknown error 524 ps_root_recvmsg: Unknown error 524 1970/01/01 00:04:53 fuzzer started 1970/01/01 00:04:59 connecting to host at localhost:39721 1970/01/01 00:04:59 checking machine... 1970/01/01 00:04:59 checking revisions... executing program 1970/01/01 00:05:03 testing simple program... [ 304.740988][ T2842] cgroup: Unknown subsys name 'net' [ 305.642718][ T2842] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program executing program executing program executing program [ 325.150905][ T2844] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 325.218873][ T2844] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link executing program executing program [ 333.308059][ T2844] device hsr_slave_0 entered promiscuous mode executing program [ 333.342684][ T2844] device hsr_slave_1 entered promiscuous mode executing program [ 338.249282][ T2844] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 338.440209][ T2844] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 338.510535][ T2844] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 338.623427][ T2844] netdevsim netdevsim0 netdevsim3: renamed from eth3 executing program executing program ps_root_recvmsgcb: failed to send message to pid 2830: Connection refused [ 345.050599][ T2844] 8021q: adding VLAN 0 to HW filter on device bond0 ps_root_recvmsgcb: failed to send message to pid 2832: Connection refused [ 345.281205][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready executing program [ 345.343653][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready ps_root_recvmsgcb: failed to send message to pid 2831: Connection refused ps_root_recvmsgcb: failed to send message to pid 2833: Connection refused executing program [ 350.670525][ T3154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 350.722009][ T3154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 350.889243][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 350.978665][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 351.308177][ T3154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready executing program [ 351.358407][ T3154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 351.583656][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 351.613276][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 351.778287][ T3154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 351.802316][ T3154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 351.942827][ T2844] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 355.522560][ T3154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 355.531026][ T3154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready executing program executing program executing program [ 366.220322][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 366.261409][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready executing program executing program [ 372.102649][ T3173] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 372.138578][ T3173] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 372.222753][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 372.253152][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 372.296487][ T2844] device veth0_vlan entered promiscuous mode executing program [ 372.527504][ T2844] device veth1_vlan entered promiscuous mode [ 373.088189][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 373.117524][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 373.220492][ T2844] device veth0_macvtap entered promiscuous mode [ 373.318738][ T2844] device veth1_macvtap entered promiscuous mode [ 373.732054][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 373.780398][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 373.901383][ T3173] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 373.932749][ T3173] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 374.048562][ T2844] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 374.050805][ T2844] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 374.051990][ T2844] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 374.053152][ T2844] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program 1970/01/01 00:06:17 building call list... executing program executing program [ 382.719273][ T44] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 383.463320][ T44] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 383.867630][ T44] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 384.372655][ T44] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program executing program executing program [ 391.806790][ T44] device hsr_slave_0 left promiscuous mode [ 391.839981][ T44] device hsr_slave_1 left promiscuous mode [ 392.007012][ T44] device veth1_macvtap left promiscuous mode [ 392.012165][ T44] device veth0_macvtap left promiscuous mode [ 392.019238][ T44] device veth1_vlan left promiscuous mode [ 392.022383][ T44] device veth0_vlan left promiscuous mode executing program executing program executing program executing program [ 403.307583][ T44] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 404.249639][ T44] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface executing program [ 406.442984][ T44] bond0 (unregistering): Released all slaves executing program Connection to localhost closed by remote host. VM DIAGNOSIS: 13:49:27 Registers: info registers vcpu 0 pc ffffffff8012bfba mhartid 0000000000000000 mstatus 00000000000000a0 mip 00000000000002a0 mie 000000000000022a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff80005e88 mepc ffffffff804ebd22 sepc ffffffff83444bba mcause 8000000000000007 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff8012bfba x2/sp ff20000004c17be0 x3/gp ffffffff85efe540 x4/tp ff600000125ce200 x5/t0 ff20000004c17e00 x6/t1 ffebffff0207eae0 x7/t2 0000000000000001 x8/s0 ff20000004c17c20 x9/s1 ff600000103f5700 x10/a0 ff600000103f5700 x11/a1 0000000000000003 x12/a2 1fec00000207eae0 x13/a3 ffffffff8012bfba x14/a4 0000000000000000 x15/a5 ff600000103f5700 x16/a6 ff600000103f5700 x17/a7 ff600000103f5703 x18/s2 000000000000207d x19/s3 ff600000103f5710 x20/s4 ff600000103f5708 x21/s5 ff600000125ce200 x22/s6 ffffffff85e27097 x23/s7 ffffffff83a1bf40 x24/s8 ffffffff83a1bee0 x25/s9 0000000000000001 x26/s10 000000000076d090 x27/s11 000000c0000004e0 x28/t3 fffffffff3f3f300 x29/t4 ffebffff0207eae0 x30/t5 ffebffff0207eae1 x31/t6 0000000000000000 f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 4120000000000000 f3/ft3 403a000000000000 f4/ft4 4102f33000000000 f5/ft5 40385b8887367433 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000 info registers vcpu 1 pc ffffffff804e66e2 mhartid 0000000000000001 mstatus 00000000000000a0 mip 00000000000000a0 mie 000000000000022a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff80005e88 mepc ffffffff804e66e2 sepc 0000000000076c58 mcause 8000000000000007 scause 0000000000000008 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff804e66c8 x2/sp ff20000004c37ae0 x3/gp ffffffff85efe540 x4/tp ff600000125cb100 x5/t0 ff20000004c37e00 x6/t1 00000000000f0000 x7/t2 0000000000000000 x8/s0 ff20000004c37b80 x9/s1 ff60000008338a00 x10/a0 0000000000000000 x11/a1 0000000000000003 x12/a2 1fec00000b53c909 x13/a3 ffffffff80127f46 x14/a4 f597c230eff13100 x15/a5 f597c230eff13100 x16/a6 0000000000000003 x17/a7 0000000000000001 x18/s2 0000000000000a20 x19/s3 0000000000000000 x20/s4 0000000000000a20 x21/s5 ffffffff85f25740 x22/s6 ffffffff8007c510 x23/s7 0000000000000050 x24/s8 ffffffff85f04920 x25/s9 0000000000000b0d x26/s10 0000000000000000 x27/s11 0000000000000016 x28/t3 fffffffff3f3f300 x29/t4 ffffffff801244de x30/t5 1fe4000000986f08 x31/t6 0000000000000000 f0/ft0 3fd3333333333333 f1/ft1 3fcdaed2658f8dcb f2/ft2 3fd0000000000000 f3/ft3 3f2528cebb787ffb f4/ft4 3fe0000000000000 f5/ft5 4000000000000000 f6/ft6 4000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000