syzkaller login: [ 172.018448][ T2919] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 172.039947][ T2919] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 172.057991][ T2919] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 172.075265][ T2919] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:30171' (ECDSA) to the list of known hosts. 1970/01/01 00:03:19 fuzzer started 1970/01/01 00:03:25 connecting to host at localhost:43401 1970/01/01 00:03:25 checking machine... 1970/01/01 00:03:25 checking revisions... executing program 1970/01/01 00:03:28 testing simple program... executing program executing program executing program executing program executing program executing program executing program [ 231.935397][ T3089] Unable to handle kernel paging request at virtual address 1ffffffff07aa547 [ 231.938080][ T3089] Oops [#1] [ 231.938913][ T3089] Modules linked in: [ 231.941554][ T3089] CPU: 0 PID: 3089 Comm: syz-executor.0 Not tainted 5.14.0-syzkaller #0 [ 231.942754][ T3089] Hardware name: riscv-virtio,qemu (DT) [ 231.943623][ T3089] epc : __kmalloc_node_track_caller+0xb0/0x3d2 [ 231.944866][ T3089] ra : __kmalloc_node_track_caller+0x70/0x3d2 [ 231.945640][ T3089] epc : ffffffff803e2a20 ra : ffffffff803e29e0 sp : ffffffe014b7eec0 [ 231.946733][ T3089] gp : ffffffff83f967d8 tp : ffffffe0081f2f80 t0 : ffffffe00b7f04a8 [ 231.947651][ T3089] t1 : 0000000000000001 t2 : 0000000000000000 s0 : ffffffe014b7ef60 [ 231.948476][ T3089] s1 : ffffffe005601c80 a0 : 0000000000000000 a1 : 0000000000000007 [ 231.950248][ T3089] a2 : 1ffffffff07aa51f a3 : ffffffff80a9711a a4 : 0000000000000000 [ 231.951854][ T3089] a5 : 0000000000000000 a6 : 0000000000f00000 a7 : ffffffff8038ca52 [ 231.952563][ T3089] s2 : ffffffff83f96adc s3 : 0000000000082cc0 s4 : 0000000000000180 [ 231.953587][ T3089] s5 : ffffffffffffffff s6 : ffffffff82793a54 s7 : ffffffff83f9a0d0 [ 231.954547][ T3089] s8 : 0000000000000000 s9 : 0000000000082cc0 s10: ffffffff83f9a0d0 [ 231.955458][ T3089] s11: ffffffe008720d48 t3 : 4f02fe095edb6d00 t4 : ffffffc401ac429f [ 231.956427][ T3089] t5 : ffffffc401ac42a1 t6 : ffffffe00d621506 [ 231.957316][ T3089] status: 0000000000000120 badaddr: 1ffffffff07aa547 cause: 000000000000000f [ 231.958452][ T3089] [] __kmalloc_node_track_caller+0xb0/0x3d2 [ 231.960934][ T3089] [] __alloc_skb+0xee/0x2e2 [ 231.961980][ T3089] [] inet6_netconf_notify_devconf+0xb6/0x1ee [ 231.963131][ T3089] [] __addrconf_sysctl_register+0x198/0x24a [ 231.964189][ T3089] [] addrconf_sysctl_register+0x106/0x138 [ 231.965308][ T3089] [] ipv6_add_dev+0x56e/0x9be [ 231.966335][ T3089] [] addrconf_notify+0x5a8/0x187c [ 231.967398][ T3089] [] notifier_call_chain+0xb8/0x188 [ 231.968496][ T3089] [] raw_notifier_call_chain+0x2a/0x38 [ 231.969813][ T3089] [] call_netdevice_notifiers_info+0x9e/0x10e [ 231.971154][ T3089] [] register_netdevice+0xa5e/0xbe0 [ 231.972339][ T3089] [] veth_newlink+0x3c4/0x6e0 [ 231.973477][ T3089] [] __rtnl_newlink+0xb04/0xe90 [ 231.974571][ T3089] [] rtnl_newlink+0x50/0x7c [ 231.975459][ T3089] [] rtnetlink_rcv_msg+0x2ce/0x90e [ 231.976430][ T3089] [] netlink_rcv_skb+0x9c/0x248 [ 231.977473][ T3089] [] rtnetlink_rcv+0x26/0x30 [ 231.978611][ T3089] [] netlink_unicast+0x398/0x584 [ 231.979853][ T3089] [] netlink_sendmsg+0x44a/0x894 [ 231.980986][ T3089] [] sock_sendmsg+0xa0/0xc4 [ 231.982283][ T3089] [] __sys_sendto+0x170/0x230 [ 231.983490][ T3089] [] sys_sendto+0x3e/0x52 [ 231.984513][ T3089] [] ret_from_syscall+0x0/0x2 [ 232.004418][ T3089] ---[ end trace b351d3a63b48ab8c ]--- [ 232.005879][ T3089] Kernel panic - not syncing: Fatal exception [ 232.007021][ T3089] SMP: stopping secondary CPUs [ 232.008760][ T3089] Rebooting in 86400 seconds.. VM DIAGNOSIS: 21:13:29 Registers: info registers vcpu 0 pc ffffffff80c840a8 mhartid 0000000000000000 mstatus 00000000000001a0 mip 00000000000000a8 mie 000000000000022a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff80005004 mepc ffffffff803e8aa6 sepc ffffffff803e2a20 mcause 8000000000000007 scause 000000000000000f mtval 0000000000000000 stval 1ffffffff07aa547 x0/zero 0000000000000000 x1/ra ffffffff80c840a8 x2/sp ffffffe014b7e880 x3/gp ffffffff83f967d8 x4/tp ffffffe0081f2f80 x5/t0 ffffffff852b2bc7 x6/t1 ffffffc7f0a56578 x7/t2 0000000000000000 x8/s0 ffffffe014b7e8b0 x9/s1 ffffffff8552e4d8 x10/a0 ffffffff8552e520 x11/a1 ffffffd010695000 x12/a2 1ffffffff0aa5ca4 x13/a3 ffffffff80c840a8 x14/a4 0000000000000000 x15/a5 ffffffff8552e520 x16/a6 0000000000f00000 x17/a7 ffffffff852b2bc6 x18/s2 ffffffd010695000 x19/s3 0000000000000031 x20/s4 000000000000002a x21/s5 ffffffff80c833de x22/s6 ffffffff8552e4d8 x23/s7 ffffffff8552e530 x24/s8 0000000000000001 x25/s9 ffffffff83f9a0d0 x26/s10 ffffffff8552e760 x27/s11 ffffffff8552e528 x28/t3 000000000000004d x29/t4 ffffffc7f0a56576 x30/t5 ffffffc7f0a56579 x31/t6 ffffffff852b2bc7 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 info registers vcpu 1 pc ffffffff8000533a mhartid 0000000000000001 mstatus 00000000000000a0 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff80005004 mepc ffffffff8000f030 sepc ffffffff80089ce8 mcause 0000000000000009 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff80005336 x2/sp ffffffe005847f40 x3/gp ffffffff83f967d8 x4/tp ffffffe005810000 x5/t0 ffffffc401d7a800 x6/t1 ffffffc40b5beb29 x7/t2 0000000000000000 x8/s0 ffffffe005847f50 x9/s1 ffffffe005810000 x10/a0 ffffffff82ba4632 x11/a1 00000000000f0000 x12/a2 0000000000000002 x13/a3 ffffffff80005336 x14/a4 ffffffe005811000 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffffe05adf594b x18/s2 0000000000000001 x19/s3 0000000000000002 x20/s4 0000000000000007 x21/s5 ffffffff83f9a3b8 x22/s6 ffffffe005810000 x23/s7 fffffffffffffffd x24/s8 00000000800130f0 x25/s9 0000000000000000 x26/s10 0000000000000000 x27/s11 0000000000000000 x28/t3 00000000000004dd x29/t4 ffffffc40b5beb29 x30/t5 ffffffc40b5beb2a x31/t6 0000000000000005 f0/ft0 3f83c13543434d3f f1/ft1 3f847ae147ae147b f2/ft2 419a74d321f8354a f3/ft3 41318dc000000000 f4/ft4 3ff799999999999a f5/ft5 3fde666666666666 f6/ft6 3febbf06d8aac194 f7/ft7 3fd917a74aef1cc2 f8/fs0 3fec835aa5f4f7eb f9/fs1 3fa20e26cda77e30 f10/fa0 3fd714d769e783f6 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