syzkaller login: [ 278.938506][ T1858] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 288.520762][ T1858] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 288.560925][ T1858] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 288.619753][ T1858] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:48553' (ECDSA) to the list of known hosts. 1970/01/01 00:06:00 fuzzer started 1970/01/01 00:06:13 dialing manager at localhost:45661 [ 380.502497][ T2032] cgroup: Unknown subsys name 'net' [ 381.609631][ T2032] cgroup: Unknown subsys name 'rlimit' 1970/01/01 00:06:21 syscalls: 2918 1970/01/01 00:06:21 code coverage: enabled 1970/01/01 00:06:21 comparison tracing: ioctl(KCOV_DISABLE) failed: invalid argument 1970/01/01 00:06:21 extra coverage: enabled 1970/01/01 00:06:21 delay kcov mmap: mmap returned an invalid pointer 1970/01/01 00:06:21 setuid sandbox: enabled 1970/01/01 00:06:21 namespace sandbox: enabled 1970/01/01 00:06:21 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:06:21 fault injection: enabled 1970/01/01 00:06:21 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:06:21 net packet injection: enabled 1970/01/01 00:06:21 net device setup: enabled 1970/01/01 00:06:21 concurrency sanitizer: 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fetching corpus: 13256, signal 267019/270041 (executing program) 1970/01/01 00:17:43 fetching corpus: 13305, signal 267246/270041 (executing program) 1970/01/01 00:17:44 fetching corpus: 13329, signal 267351/270041 (executing program) 1970/01/01 00:17:45 fetching corpus: 13330, signal 267353/270041 (executing program) 1970/01/01 00:17:45 fetching corpus: 13330, signal 267353/270041 (executing program) 1970/01/01 00:19:28 starting 2 fuzzer processes 00:19:29 executing program 1: r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x26e1, 0x0) write$P9_RREADLINK(0xffffffffffffffff, 0x0, 0x10) ioctl$F2FS_IOC_RESIZE_FS(r0, 0x4008f510, &(0x7f0000000080)=0x9) fallocate(r0, 0x0, 0x0, 0x8800000) accept4(r0, &(0x7f0000000580)=@alg, &(0x7f0000000140)=0xfe36, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0xe66e1, 0x0) ioctl$FS_IOC_SETFLAGS(r1, 0x40086602, &(0x7f0000000000)) ftruncate(r1, 0x4d0) syz_genetlink_get_family_id$fou(&(0x7f00000002c0), r1) statx(r1, &(0x7f0000000280)='./file0\x00', 0x400, 0x80, &(0x7f0000000180)) open_tree(r1, &(0x7f00000000c0)='./file0\x00', 0x81000) openat$nvme_fabrics(0xffffffffffffff9c, &(0x7f00000002c0), 0x0, 0x0) ftruncate(0xffffffffffffffff, 0x4d0) r2 = syz_genetlink_get_family_id$fou(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$FOU_CMD_ADD(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000340)={&(0x7f0000000600)=ANY=[@ANYBLOB="a70209008ae910cc949e255fa78a19b321af3fff33f00124e9c47967b59d55383e48c12e6fc66e27a955118cb9f74214bb26b689d957bee7f06e5e37da8cb9d849f62d02330996b952d246cfba686a8eda9d262809da81c86104c203770923b1f04ec365a0781ab10a1b12c866b8d9de10fa46891e96156457dcf1ac3edef0d82ef5d13fd079ed7dd7f2c5d2a2c8e5000006a4e289cc6358b3c895e20000000000000000", @ANYRES16=r2, @ANYBLOB="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"], 0x40}, 0x1, 0x0, 0x0, 0x8040}, 0x1) mount_setattr(0xffffffffffffffff, &(0x7f0000000300)='./file0\x00', 0x8100, &(0x7f0000000340)={0x6, 0x6, 0x100000}, 0x20) ioctl$int_in(0xffffffffffffffff, 0x5421, &(0x7f0000000280)=0x5) r3 = socket$inet_sctp(0x2, 0x1, 0x84) ioctl$sock_inet_SIOCADDRT(r3, 0x890c, &(0x7f00000003c0)={0x0, {0x2, 0x4e21, @empty}, {0x2, 0x0, @local}, {0x2, 0x3, @empty}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000, 0x200000000801, 0x7}) ioctl$FS_IOC_SETFLAGS(r3, 0x40086602, &(0x7f0000000000)=0x20000000) 00:19:29 executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) ioctl$sock_ipv6_tunnel_SIOCDELTUNNEL(0xffffffffffffffff, 0x89f2, &(0x7f0000000380)={'ip6tnl0\x00', &(0x7f0000000300)={'syztnl2\x00', 0x0, 0x29, 0x5, 0x40, 0xfffffff9, 0x41, @local, @mcast2, 0x7800, 0x8000, 0x1, 0x5}}) r1 = socket$inet6(0xa, 0x3, 0x9) r2 = socket$nl_audit(0x10, 0x3, 0x9) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000080)={'lo\x00', 0x0}) setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000000)={@remote, r3}, 0x14) r4 = socket$inet6(0xa, 0x3, 0x9) r5 = socket$nl_audit(0x10, 0x3, 0x9) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000080)={'lo\x00', 0x0}) setsockopt$inet6_mreq(r4, 0x29, 0x1b, &(0x7f0000000000)={@remote, r6}, 0x14) ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f00000001c0)={'vcan0\x00'}) getsockopt$inet_pktinfo(0xffffffffffffffff, 0x0, 0x8, &(0x7f0000000200)={0x0, @rand_addr, @empty}, &(0x7f0000000240)=0xc) ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, &(0x7f0000000280)) r7 = socket$inet6(0xa, 0x3, 0x9) setsockopt$inet6_IPV6_XFRM_POLICY(r7, 0x29, 0x23, 0x0, 0x35) r8 = socket$nl_route(0x10, 0x3, 0x0) r9 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$ifreq_SIOCGIFINDEX_wireguard(r9, 0x8933, &(0x7f0000000180)={'wg2\x00', 0x0}) sendmsg$nl_route(r8, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000100)=@newlink={0x60, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x38, 0x12, 0x0, 0x1, @ip6gre={{0xb}, {0x28, 0x2, 0x0, 0x1, [@IFLA_GRE_LOCAL={0x14, 0x6, @dev}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0x1}, @IFLA_GRE_ERSPAN_DIR={0x5}]}}}, @IFLA_MASTER={0x8, 0xa, r10}]}, 0x60}}, 0x0) ioctl$sock_ipv6_tunnel_SIOCDELTUNNEL(r7, 0x89f2, &(0x7f0000000380)={'ip6tnl0\x00', &(0x7f0000000300)={'syztnl2\x00', r10, 0x29, 0x5, 0x40, 0xfffffff9, 0x41, @local, @mcast2, 0x7800, 0x8000, 0x1, 0x5}}) [ 1188.299797][ T2050] Kernel panic - not syncing: corrupted stack end detected inside scheduler [ 1188.301763][ T2050] CPU: 0 PID: 2050 Comm: syz-executor.0 Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 [ 1188.303408][ T2050] Hardware name: riscv-virtio,qemu (DT) [ 1188.304598][ T2050] Call Trace: [ 1188.306332][ T2050] [] dump_backtrace+0x2e/0x3c [ 1188.308476][ T2050] [] show_stack+0x34/0x40 [ 1188.309793][ T2050] [] dump_stack_lvl+0xe4/0x150 [ 1188.311163][ T2050] [] dump_stack+0x1c/0x24 [ 1188.312476][ T2050] [] panic+0x24a/0x634 [ 1188.313713][ T2050] [] schedule+0x0/0x14c [ 1188.315001][ T2050] [] preempt_schedule_common+0x4e/0xde [ 1188.316282][ T2050] [] preempt_schedule+0x34/0x36 [ 1188.318099][ T2050] [] __kernfs_new_node+0x5e8/0x5f2 [ 1188.319612][ T2050] [] kernfs_new_node+0x66/0xbe [ 1188.320841][ T2050] [] __kernfs_create_file+0x4e/0x1e8 [ 1188.322216][ T2050] [] sysfs_add_file_mode_ns+0x138/0x254 [ 1188.323574][ T2050] [] internal_create_group+0x274/0x722 [ 1188.324964][ T2050] [] internal_create_groups.part.0+0x64/0xe8 [ 1188.326332][ T2050] [] sysfs_create_groups+0x2c/0x48 [ 1188.328253][ T2050] [] device_add+0x656/0x129e [ 1188.329654][ T2050] [] netdev_register_kobject+0xcc/0x208 [ 1188.331038][ T2050] [] register_netdevice+0x8ee/0xc6a [ 1188.332362][ T2050] [] vxcan_newlink+0x31e/0x556 [ 1188.333712][ T2050] [] __rtnl_newlink+0xc16/0xfa0 [ 1188.335114][ T2050] [] rtnl_newlink+0x60/0x8c [ 1188.336482][ T2050] [] rtnetlink_rcv_msg+0x338/0x9a0 [ 1188.338490][ T2050] [] netlink_rcv_skb+0xf8/0x2be [ 1188.339749][ T2050] [] rtnetlink_rcv+0x26/0x30 [ 1188.341012][ T2050] [] netlink_unicast+0x40e/0x5fe [ 1188.342275][ T2050] [] netlink_sendmsg+0x4e0/0x994 [ 1188.343542][ T2050] [] sock_sendmsg+0xa0/0xc4 [ 1188.344848][ T2050] [] __sys_sendto+0x1f2/0x2e0 [ 1188.346078][ T2050] [] sys_sendto+0x3e/0x52 [ 1188.347900][ T2050] [] ret_from_syscall+0x0/0x2 [ 1188.349666][ T2050] SMP: stopping secondary CPUs [ 1188.352395][ T2050] Rebooting in 86400 seconds.. VM DIAGNOSIS: 10:27:22 Registers: info registers vcpu 0 pc ffffffff80123d7a mhartid 0000000000000000 mstatus 00000000000000a0 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff8000f97e sepc ffffffff800bdb3e mcause 0000000000000009 scause 8000000000000009 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff80123d7a x2/sp ffffaf800efb1fc0 x3/gp ffffffff85863ac0 x4/tp ffffaf800ecc48c0 x5/t0 ffffffff86bcb657 x6/t1 fffff5ef01df6414 x7/t2 0000000000000000 x8/s0 ffffaf800efb2170 x9/s1 0000000000000000 x10/a0 ffffaf800efb2248 x11/a1 00000000000f0000 x12/a2 0000000000000002 x13/a3 ffffffff80123d7a x14/a4 ffffaf800ecc58c0 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffaf800efb20a7 x18/s2 ffffaf800efb2240 x19/s3 ffffaf800efb2100 x20/s4 0000000000000802 x21/s5 00000000ffffe2c4 x22/s6 ffffaf800efb2200 x23/s7 0000000000000002 x24/s8 ffffffff84a88a00 x25/s9 ffffaf800efb2248 x26/s10 ffffffff84a88a18 x27/s11 ffffaf800efb2240 x28/t3 1ffff5f001df6480 x29/t4 fffff5ef01df6414 x30/t5 fffff5ef01df6415 x31/t6 ffffaf800efb20b8 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 ffffffff80475986 mhartid 0000000000000001 mstatus 00000000000000a2 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff8000f97e sepc 00007fffb95da850 mcause 0000000000000009 scause 0000000000000008 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff80146d6c x2/sp ffffaf800f9278e0 x3/gp ffffffff85863ac0 x4/tp ffffaf800c680000 x5/t0 00000000000006b0 x6/t1 fffffffff3f3f3f3 x7/t2 0000000000000028 x8/s0 ffffaf800f927870 x9/s1 0000000000000000 x10/a0 ffffaf800c680a6c x11/a1 0000000000000007 x12/a2 1ffff5f0018d0148 x13/a3 ffffffff801126d2 x14/a4 0000000000000000 x15/a5 ffffaf800c680a68 x16/a6 ffffffff866d0598 x17/a7 ffffffff803e7a46 x18/s2 ffffaf800c680a48 x19/s3 0000000000000000 x20/s4 ffffaf800c681000 x21/s5 ffffaf800c680a18 x22/s6 ffffffff858c4ca0 x23/s7 79079b39b3056a98 x24/s8 ffffffff803e7a46 x25/s9 ffffffff85889780 x26/s10 ffffffff858693c0 x27/s11 ffffaf800c04ce60 x28/t3 fffffffff3f3f300 x29/t4 ffffffff80112282 x30/t5 1ffff5f001f24ef4 x31/t6 00007fffb97491a8 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