syzkaller login: ps_root_recvmsgcb: failed to send message to pid 1964: Connection refused ps_root_recvmsgcb: failed to send message to pid 1967: Connection refused ps_root_recvmsgcb: failed to send message to pid 1968: Connection refused [ 187.108853][ T1852] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 187.162488][ T1852] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 187.210290][ T1852] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. ps_root_recvmsgcb: failed to send message to pid 1978: Connection refused Warning: Permanently added '[localhost]:55819' (ECDSA) to the list of known hosts. [ 219.004354][ T2007] dhcpcd: vmalloc error: size 4096, vm_struct allocation failed, mode:0xcc0(GFP_KERNEL), nodemask=(null),cpuset=/,mems_allowed=0 [ 219.013315][ T2007] CPU: 0 PID: 2007 Comm: dhcpcd Tainted: G W 6.0.0-rc1-syzkaller-00006-ga057092b801e #0 [ 219.014363][ T2007] Hardware name: riscv-virtio,qemu (DT) [ 219.015141][ T2007] Call Trace: [ 219.016000][ T2007] [] dump_backtrace+0x2e/0x3c [ 219.017007][ T2007] [] show_stack+0x34/0x40 [ 219.017937][ T2007] [] dump_stack_lvl+0xe4/0x150 [ 219.018871][ T2007] [] dump_stack+0x1c/0x24 [ 219.019843][ T2007] [] warn_alloc+0x170/0x212 [ 219.020831][ T2007] [] __vmalloc_node_range+0x16e/0xb4e [ 219.021863][ T2007] [] bpf_jit_alloc_exec+0x46/0x52 [ 219.022849][ T2007] [] bpf_jit_binary_alloc+0x96/0x144 [ 219.023840][ T2007] [] bpf_int_jit_compile+0x87a/0xa8c [ 219.024805][ T2007] [] bpf_prog_select_runtime+0x1a2/0x22e [ 219.026348][ T2007] [] bpf_migrate_filter+0x258/0x2be [ 219.027327][ T2007] [] bpf_prepare_filter+0x10e/0x1b4 [ 219.028578][ T2007] [] __get_filter+0x148/0x1a0 [ 219.029540][ T2007] [] sk_attach_filter+0x22/0x11a [ 219.030506][ T2007] [] sock_setsockopt+0x1d10/0x23e4 [ 219.031783][ T2007] [] __sys_setsockopt+0x414/0x472 [ 219.032872][ T2007] [] sys_setsockopt+0x3a/0x4c [ 219.033827][ T2007] [] ret_from_syscall+0x0/0x2 [ 219.057184][ T2007] Mem-Info: [ 219.058105][ T2007] active_anon:34 inactive_anon:677 isolated_anon:0 [ 219.058105][ T2007] active_file:1674 inactive_file:3856 isolated_file:0 [ 219.058105][ T2007] unevictable:768 dirty:3847 writeback:0 [ 219.058105][ T2007] slab_reclaimable:5197 slab_unreclaimable:17958 [ 219.058105][ T2007] mapped:1015 shmem:804 pagetables:103 bounce:0 [ 219.058105][ T2007] kernel_misc_reclaimable:0 [ 219.058105][ T2007] free:282373 free_pcp:1114 free_cma:4096 [ 219.060593][ T2007] Node 0 active_anon:136kB inactive_anon:2708kB active_file:6696kB inactive_file:15424kB unevictable:3072kB isolated(anon):0kB isolated(file):0kB mapped:4060kB dirty:15388kB writeback:0kB shmem:3216kB writeback_tmp:0kB kernel_stack:4512kB pagetables:412kB all_unreclaimable? no [ 219.062546][ T2007] Node 0 DMA32 free:1129492kB boost:0kB min:4656kB low:6012kB high:7368kB reserved_highatomic:0KB active_anon:136kB inactive_anon:2708kB active_file:6696kB inactive_file:15424kB unevictable:3072kB writepending:15388kB present:2095104kB managed:1359068kB mlocked:0kB bounce:0kB free_pcp:4456kB local_pcp:2008kB free_cma:16384kB [ 219.064854][ T2007] lowmem_reserve[]: 0 0 0 [ 219.078169][ T2007] Node 0 DMA32: 199*4kB (UE) 41*8kB (UM) 51*16kB (UM) 50*32kB (UME) 15*64kB (UME) 3*128kB (UE) 1*256kB (M) 0*512kB 2*1024kB (UE) 4*2048kB (MEC) 272*4096kB (MC) = 1129492kB [ 219.084159][ T2007] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 219.096705][ T2007] Node 0 hugepages_total=4 hugepages_free=4 hugepages_surp=0 hugepages_size=2048kB [ 219.097888][ T2007] 6334 total pagecache pages [ 219.098615][ T2007] 0 pages in swap cache [ 219.099306][ T2007] Free swap = 0kB [ 219.100012][ T2007] Total swap = 0kB [ 219.100709][ T2007] 523776 pages RAM [ 219.101427][ T2007] 0 pages HighMem/MovableOnly [ 219.102200][ T2007] 184009 pages reserved [ 219.102894][ T2007] 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 00:03:48 fuzzer started runtime: lfstack.push invalid packing: node=0xffffff58fea240 cnt=0x1 packed=0xffff58fea2400001 -> node=0xffff58fea240 [ 253.165989][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/u4:7:648] [ 253.168264][ C0] Modules linked in: [ 253.169440][ C0] irq event stamp: 106151 [ 253.171104][ C0] hardirqs last enabled at (106150): [] __trace_hardirqs_on+0x18/0x20 [ 253.172710][ C0] hardirqs last disabled at (106151): [] __trace_hardirqs_off+0x18/0x20 [ 253.174006][ C0] softirqs last enabled at (101522): [] __do_softirq+0x61e/0x906 [ 253.175102][ C0] softirqs last disabled at (101691): [] __irq_exit_rcu+0x154/0x1ea [ 253.176283][ C0] CPU: 0 PID: 648 Comm: kworker/u4:7 Tainted: G W 6.0.0-rc1-syzkaller-00006-ga057092b801e #0 [ 253.177324][ C0] Hardware name: riscv-virtio,qemu (DT) [ 253.178240][ C0] Workqueue: events_unbound toggle_allocation_gate [ 253.179391][ C0] epc : __kmalloc_node_track_caller+0xae/0x35c [ 253.180354][ C0] ra : __kmalloc_node_track_caller+0x74/0x35c [ 253.181245][ C0] epc : ffffffff804ae066 ra : ffffffff804ae02c sp : ff200000117a6f00 [ 253.182154][ C0] gp : ffffffff85a97360 tp : ff600000105f18c0 t0 : ffebffff0254bcbe [ 253.183402][ C0] t1 : 00000000000f0000 t2 : 0000000000000001 s0 : ff200000117a6fa0 [ 253.184299][ C0] s1 : ff60000007e01dc0 a0 : 0000000000000000 a1 : 0000000000000007 [ 253.185174][ C0] a2 : 1ffffffff09c9ce0 a3 : ffffffff80c47480 a4 : 0000000000000000 [ 253.186096][ C0] a5 : 0000000000000000 a6 : ffffffffb8998500 a7 : 0000000000000100 [ 253.186912][ C0] s2 : 0000000000082a20 s3 : 0000000000082a20 s4 : 0000000000000240 [ 253.187728][ C0] s5 : ffffffffffffffff s6 : ffffffff827ac0d4 s7 : ffffffff85abd7c0 [ 253.188589][ C0] s8 : 0000000000000000 s9 : ffffffff85a9d520 s10: ff6000007fdef7c0 [ 253.189429][ C0] s11: ff60000012034bf4 t3 : fffffffff204f202 t4 : ffebffff0103a798 [ 253.190269][ C0] t5 : ffebffff0103a799 t6 : 0000000000000006 [ 253.191016][ C0] status: 0000000000000120 badaddr: 0000000000000000 cause: 8000000000000005 [ 253.191862][ C0] [] __alloc_skb+0xe6/0x2c2 [ 253.193297][ C0] [] __napi_alloc_skb+0x72/0x20c [ 253.194252][ C0] [] page_to_skb+0x172/0x712 [ 253.195156][ C0] [] receive_buf+0xac4/0x401a [ 253.196088][ C0] [] virtnet_poll+0x3be/0xa04 [ 253.196985][ C0] [] __napi_poll+0x7a/0x34e [ 253.197890][ C0] [] net_rx_action+0x728/0x882 [ 253.198811][ C0] [] __do_softirq+0x274/0x906 [ 253.199947][ C0] [] __irq_exit_rcu+0x154/0x1ea [ 253.200893][ C0] [] irq_exit+0x10/0x7a [ 253.201785][ C0] [] generic_handle_arch_irq+0x48/0x54 [ 253.203286][ C0] [] ret_from_exception+0x0/0x10 [ 253.204236][ C0] [] copy_to_kernel_nofault+0x1f8/0x2a8 [ 253.206126][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 253.207066][ C0] CPU: 0 PID: 648 Comm: kworker/u4:7 Tainted: G W L 6.0.0-rc1-syzkaller-00006-ga057092b801e #0 [ 253.208107][ C0] Hardware name: riscv-virtio,qemu (DT) [ 253.208819][ C0] Workqueue: events_unbound toggle_allocation_gate [ 253.209889][ C0] Call Trace: [ 253.210533][ C0] [] dump_backtrace+0x2e/0x3c [ 253.211463][ C0] [] show_stack+0x34/0x40 [ 253.212668][ C0] [] dump_stack_lvl+0xe4/0x150 [ 253.213798][ C0] [] dump_stack+0x1c/0x24 [ 253.214736][ C0] [] panic+0x276/0x662 [ 253.216518][ C0] [] watchdog_timer_fn+0x4de/0x532 [ 253.217448][ C0] [] __hrtimer_run_queues+0x1e6/0xa1e [ 253.218384][ C0] [] hrtimer_run_queues+0x184/0x21e [ 253.219305][ C0] [] update_process_times+0x5e/0x11c [ 253.220246][ C0] [] tick_periodic+0xa4/0x1c8 [ 253.221152][ C0] [] tick_handle_periodic+0x3a/0xd6 [ 253.222141][ C0] [] riscv_timer_interrupt+0x5c/0x6a [ 253.223440][ C0] [] handle_percpu_devid_irq+0x17e/0x2ae [ 253.224428][ C0] [] generic_handle_domain_irq+0x50/0x66 [ 253.226109][ C0] [] riscv_intc_irq+0x7e/0xc8 [ 253.227077][ C0] [] generic_handle_arch_irq+0x36/0x54 [ 253.228095][ C0] [] ret_from_exception+0x0/0x10 [ 253.229053][ C0] [] __kmalloc_node_track_caller+0x74/0x35c [ 253.230219][ C0] SMP: stopping secondary CPUs [ 253.232438][ C0] Rebooting in 86400 seconds.. VM DIAGNOSIS: 15:01:53 Registers: info registers vcpu 0 pc ffffffff801199b6 mhartid 0000000000000000 mstatus 00000000000001a0 mip 00000000000000a0 mie 000000000000020a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff80005b70 mepc ffffffff804ae066 sepc ffffffff804ae066 mcause 8000000000000007 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff832b5dc0 x2/sp ff200000117a6260 x3/gp ffffffff85a97360 x4/tp ff600000105f18c0 x5/t0 7400000000000000 x6/t1 00000000000f0000 x7/t2 746e657665207172 x8/s0 ff200000117a6270 x9/s1 ff600000105f2410 x10/a0 0000000000000120 x11/a1 00000000000f0000 x12/a2 ffffffff832b7170 x13/a3 0000000000000000 x14/a4 0000000000000001 x15/a5 ff6000005a5c7808 x16/a6 0000000000000100 x17/a7 0000000000010103 x18/s2 0000000000000000 x19/s3 ffffffff84d7a100 x20/s4 ff600000105f28c0 x21/s5 ffffffff83640808 x22/s6 ffffffffffffffff x23/s7 0000000000000120 x24/s8 ffffffff8779fca0 x25/s9 0000000000000008 x26/s10 ffffffff8798fa18 x27/s11 0000000000000001 x28/t3 fffffffff3f3f300 x29/t4 fffffffef0f31f40 x30/t5 fffffffef0f31f41 x31/t6 ffffffff87750a97 f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 414fffffe0000000 f3/ft3 43e0000000000000 f4/ft4 3ffe000000000000 f5/ft5 0000000000000000 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 ffffffff804ae066 mhartid 0000000000000001 mstatus 00000000000000a2 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff80005b70 mepc ffffffff80010a7c sepc ffffffff804ae066 mcause 0000000000000009 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff804ae02c x2/sp ff20000013867720 x3/gp ffffffff85a97360 x4/tp ff6000000f004a40 x5/t0 ff6000000fb56468 x6/t1 00000000000f0000 x7/t2 ffffffffffffffff x8/s0 ff200000138677c0 x9/s1 ff60000007e01dc0 x10/a0 0000000000000000 x11/a1 0000000000000007 x12/a2 1ffffffff0b58a4d x13/a3 ffffffff804bbf98 x14/a4 0000000000000000 x15/a5 0000000000000400 x16/a6 0000000000000003 x17/a7 0000000000000000 x18/s2 0000000000082cc0 x19/s3 0000000000082cc0 x20/s4 0000000000000240 x21/s5 ffffffffffffffff x22/s6 ffffffff82bfecaa x23/s7 ffffffff85abd7c0 x24/s8 0000000000000000 x25/s9 ffffffff85a9d520 x26/s10 ff20000013867b50 x27/s11 ffffffff8427ff40 x28/t3 fffffffff3f3f300 x29/t4 ffffffff80120346 x30/t5 1fe400000270ce8c x31/t6 000000000054630c f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 0000000000000000 f3/ft3 0000000000000000 f4/ft4 0000000000000000 f5/ft5 0000000000000000 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