syzkaller login: [ 274.639471][ T1858] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 274.734513][ T1858] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 274.824330][ T1858] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 283.861935][ T1858] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:49192' (ECDSA) to the list of known hosts. 1970/01/01 00:05:45 fuzzer started 1970/01/01 00:05:58 dialing manager at localhost:43965 [ 364.269465][ T2025] cgroup: Unknown subsys name 'net' [ 365.430347][ T2025] cgroup: Unknown subsys name 'rlimit' 1970/01/01 00:06:05 syscalls: 2918 1970/01/01 00:06:05 code coverage: enabled 1970/01/01 00:06:05 comparison tracing: enabled 1970/01/01 00:06:05 extra coverage: enabled 1970/01/01 00:06:05 delay kcov mmap: mmap returned an invalid pointer 1970/01/01 00:06:05 setuid sandbox: enabled 1970/01/01 00:06:05 namespace sandbox: enabled 1970/01/01 00:06:05 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:06:05 fault injection: enabled 1970/01/01 00:06:05 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:06:05 net packet injection: enabled 1970/01/01 00:06:05 net device setup: enabled 1970/01/01 00:06:05 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:06:05 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:06:05 NIC VF setup: PCI device 0000:00:11.0 is not available 1970/01/01 00:06:05 USB emulation: enabled 1970/01/01 00:06:05 hci packet injection: /dev/vhci does not exist 1970/01/01 00:06:05 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:06:05 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist 1970/01/01 00:06:05 fetching corpus: 0, signal 0/2000 (executing program) 1970/01/01 00:06:10 fetching corpus: 50, signal 38190/41418 (executing program) 1970/01/01 00:06:14 fetching corpus: 100, signal 50848/55340 (executing program) 1970/01/01 00:06:17 fetching corpus: 150, signal 58022/63750 (executing program) 1970/01/01 00:06:20 fetching corpus: 200, signal 66519/73309 (executing program) 1970/01/01 00:06:24 fetching corpus: 250, signal 73481/81204 (executing program) 1970/01/01 00:06:26 fetching corpus: 300, signal 77755/86509 (executing program) 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fetching corpus: 5090, signal 199933/206527 (executing program) 1970/01/01 00:10:56 fetching corpus: 5140, signal 200671/206542 (executing program) 1970/01/01 00:10:58 fetching corpus: 5190, signal 200997/206542 (executing program) 1970/01/01 00:11:00 fetching corpus: 5240, signal 201584/206542 (executing program) 1970/01/01 00:11:02 fetching corpus: 5290, signal 201973/206542 (executing program) 1970/01/01 00:11:05 fetching corpus: 5340, signal 202357/206542 (executing program) 1970/01/01 00:11:08 fetching corpus: 5390, signal 202935/206542 (executing program) 1970/01/01 00:11:10 fetching corpus: 5440, signal 203545/206542 (executing program) 1970/01/01 00:11:11 fetching corpus: 5441, signal 203592/206542 (executing program) 1970/01/01 00:11:11 fetching corpus: 5441, signal 203592/206542 (executing program) 1970/01/01 00:13:14 starting 2 fuzzer processes 00:13:14 executing program 0: r0 = syz_open_procfs(0x0, &(0x7f0000000080)='net/dev_mcast\x00') r1 = socket$igmp(0x2, 0x3, 0x2) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, &(0x7f0000000140)={'sit0\x00', &(0x7f0000000080)={'syztnl0\x00', 0x0, 0x707, 0x8, 0x3, 0x8, {{0x1e, 0x4, 0x0, 0x5, 0x78, 0x66, 0x0, 0x2, 0x29, 0x0, @multicast2, @loopback, {[@timestamp_addr={0x44, 0x2c, 0x72, 0x1, 0xc, [{@broadcast, 0xb69}, {@broadcast, 0x7f}, {@rand_addr=0x64010102, 0x7f}, {@empty, 0x9}, {@broadcast, 0x5}]}, @timestamp_prespec={0x44, 0x24, 0x43, 0x3, 0x2, [{@rand_addr=0x64010102, 0xffffffff}, {@private=0xa010102, 0x2}, {@remote, 0xfff}, {@multicast2, 0x100}]}, @lsrr={0x83, 0x13, 0xce, [@loopback, @broadcast, @initdev={0xac, 0x1e, 0x1, 0x0}, @remote]}, @noop]}}}}}) setsockopt$MRT_ADD_VIF(r1, 0x0, 0xca, &(0x7f00000001c0)={0x1, 0x1, 0x9e, 0x300000, @vifc_lcl_addr=@remote, @private=0xa010101}, 0x10) setsockopt$MRT_ADD_MFC_PROXY(r1, 0x0, 0xd2, &(0x7f0000000000)={@remote, @loopback, 0x4000, "30a3411f4ea9c5d476da6153cde2d78cb3190d04adcd365e55837782028f2751"}, 0x3c) r3 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x0, 0x180) openat(r3, &(0x7f0000000180)='./file0\x00', 0x18102, 0xf7) ioctl$AUTOFS_DEV_IOCTL_FAIL(r0, 0xc0189377, &(0x7f0000000340)={{0x1, 0x1, 0x18, r0, {0x7}}, './file0\x00'}) r4 = syz_open_dev$vcsa(&(0x7f00000000c0), 0x1, 0x82001) write$FUSE_NOTIFY_POLL(r4, &(0x7f0000000100)={0x18}, 0x2) r5 = openat$fuse(0xffffffffffffff9c, &(0x7f0000000380), 0x2, 0x0) read$FUSE(r5, &(0x7f00000023c0)={0x2020, 0x0, 0x0, 0x0}, 0xffffffffffffff18) setreuid(0x0, r6) r7 = socket$inet_udp(0x2, 0x2, 0x0) r8 = syz_open_dev$vcsa(&(0x7f00000000c0), 0x1, 0x82001) write$FUSE_NOTIFY_POLL(r8, &(0x7f0000000100)={0x18}, 0x2) r9 = syz_io_uring_complete(0x0) r10 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000400), 0x2, 0x0) read$FUSE(r10, &(0x7f0000004400)={0x2020}, 0x2020) faccessat2(r9, &(0x7f00000003c0)='./file0\x00', 0x28bd8d3f36e73f58, 0x100) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, &(0x7f0000000200)={'erspan0\x00', &(0x7f00000002c0)=ANY=[@ANYBLOB="73797a74ff000000000000000000000048", @ANYRES32=r2, @ANYBLOB="000178000000000640000000481d002000670000c82f9078ac141418ac1414bb830b8c0a0101020000000000"]}) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(r7, 0x89f2, &(0x7f0000000280)={'sit0\x00', &(0x7f0000000240)=ANY=[@ANYBLOB='erspan0\x00\x00\x00\x00\x00\x00\x00\x00\x00', @ANYRES32=0x0, @ANYBLOB="000000000000000000000000450000140000000000119078ac141400e0000002"]}) 00:13:14 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000001600)) readv(r1, &(0x7f0000001580)=[{&(0x7f0000000100)=""/184, 0xb8}, {&(0x7f0000000240)=""/148, 0x94}, {0x0}, {&(0x7f0000000380)=""/220, 0xdc}, {&(0x7f00000001c0)=""/9, 0x9}, {&(0x7f0000000480)=""/23, 0x17}, {0x0}], 0x7) readv(r0, &(0x7f00000016c0)=[{&(0x7f0000001640)=""/64, 0x40}, {&(0x7f0000001680)=""/29, 0x1d}], 0x2) r2 = syz_open_dev$usbmon(&(0x7f0000000000), 0x0, 0x0) r3 = socket$can_j1939(0x1d, 0x2, 0x7) ioctl$ifreq_SIOCGIFINDEX_vcan(r3, 0x8933, &(0x7f00000000c0)={'vxcan1\x00', 0x0}) bind$can_j1939(r3, &(0x7f0000000100)={0x1d, r4}, 0x18) connect$can_j1939(r3, &(0x7f0000000140)={0x1d, r4}, 0x18) ioctl$MON_IOCX_GETX(r2, 0x4018920a, &(0x7f0000002b00)={&(0x7f0000002a40), &(0x7f0000002a80)=""/91, 0x5b}) sendmsg$DCCPDIAG_GETSOCK(0xffffffffffffffff, &(0x7f0000002a00)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000000}, 0x4080) [ 824.675367][ T2040] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 824.861999][ T2040] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 827.134799][ T2042] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 827.244246][ T2042] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 837.062448][ T2040] device hsr_slave_0 entered promiscuous mode [ 837.124740][ T2040] device hsr_slave_1 entered promiscuous mode [ 840.473656][ T2042] Kernel panic - not syncing: corrupted stack end detected inside scheduler [ 840.475528][ T2042] CPU: 0 PID: 2042 Comm: syz-executor.1 Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 [ 840.479718][ T2042] Hardware name: riscv-virtio,qemu (DT) [ 840.481141][ T2042] Call Trace: [ 840.482146][ T2042] [] dump_backtrace+0x2e/0x3c [ 840.483531][ T2042] [] show_stack+0x34/0x40 [ 840.484721][ T2042] [] dump_stack_lvl+0xe4/0x150 [ 840.486371][ T2042] [] dump_stack+0x1c/0x24 [ 840.488023][ T2042] [] panic+0x24a/0x634 [ 840.489111][ T2042] [] schedule+0x0/0x14c [ 840.490262][ T2042] [] preempt_schedule_common+0x4e/0xde [ 840.491382][ T2042] [] preempt_schedule+0x34/0x36 [ 840.492197][ T2042] [] __kernfs_new_node+0x5e8/0x5f2 [ 840.493026][ T2042] [] kernfs_new_node+0x66/0xbe [ 840.493760][ T2042] [] __kernfs_create_file+0x4e/0x1e8 [ 840.494934][ T2042] [] sysfs_add_file_mode_ns+0x138/0x254 [ 840.496371][ T2042] [] internal_create_group+0x274/0x722 [ 840.497448][ T2042] [] internal_create_groups.part.0+0x64/0xe8 [ 840.498698][ T2042] [] sysfs_create_groups+0x2c/0x48 [ 840.499580][ T2042] [] device_add+0xee4/0x129e [ 840.500405][ T2042] [] netdev_register_kobject+0xcc/0x208 [ 840.501276][ T2042] [] register_netdevice+0x8ee/0xc6a [ 840.502462][ T2042] [] veth_newlink+0x454/0x7dc [ 840.503321][ T2042] [] __rtnl_newlink+0xc16/0xfa0 [ 840.504132][ T2042] [] rtnl_newlink+0x60/0x8c [ 840.505006][ T2042] [] rtnetlink_rcv_msg+0x338/0x9a0 [ 840.506801][ T2042] [] netlink_rcv_skb+0xf8/0x2be [ 840.508088][ T2042] [] rtnetlink_rcv+0x26/0x30 [ 840.509274][ T2042] [] netlink_unicast+0x40e/0x5fe [ 840.510437][ T2042] [] netlink_sendmsg+0x4e0/0x994 [ 840.511571][ T2042] [] sock_sendmsg+0xa0/0xc4 [ 840.512762][ T2042] [] __sys_sendto+0x1f2/0x2e0 [ 840.513876][ T2042] [] sys_sendto+0x3e/0x52 [ 840.515035][ T2042] [] ret_from_syscall+0x0/0x2 [ 840.517042][ T2042] SMP: stopping secondary CPUs [ 840.519204][ T2042] Rebooting in 86400 seconds.. VM DIAGNOSIS: 11:47:25 Registers: info registers vcpu 0 pc ffffffff80dc337e mhartid 0000000000000000 mstatus 00000000000000a0 mip 00000000000000a0 mie 000000000000022a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff80050322 sepc ffffffff801165e0 mcause 8000000000000007 scause 8000000000000009 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff80dc337e x2/sp ffffaf800f061f20 x3/gp ffffffff85863ac0 x4/tp ffffaf800b69e100 x5/t0 ffffffff86bcb657 x6/t1 2922b76c053e3900 x7/t2 0000000000000000 x8/s0 ffffaf800f061f50 x9/s1 ffffffff86e58900 x10/a0 ffffffff86e58948 x11/a1 ffff8f800066c000 x12/a2 1ffffffff0dcb129 x13/a3 ffffffff80dc337e x14/a4 0000000000000000 x15/a5 ffffffff86e58948 x16/a6 ffffffff86e589f1 x17/a7 ffffffff80dcc2ca x18/s2 ffff8f800066c000 x19/s3 0000000000000073 x20/s4 ffffffff86e58900 x21/s5 ffffffff80dc333e x22/s6 0000000000000000 x23/s7 ffffffff86bcb6b5 x24/s8 0000000000000010 x25/s9 ffffffff86e58958 x26/s10 0000000000000010 x27/s11 0000000000000000 x28/t3 fffffffff3f3f300 x29/t4 ffffffff80112282 x30/t5 1ffff5f001e0c394 x31/t6 ffffffff86bcb657 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 ffffffff800cd654 mhartid 0000000000000001 mstatus 00000000000000a0 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff8000f97e sepc ffffffff80475986 mcause 0000000000000009 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff831a24b0 x2/sp ffffaf8010747ab0 x3/gp ffffffff85863ac0 x4/tp ffffaf80091948c0 x5/t0 0000000000000000 x6/t1 2922b76c053e3900 x7/t2 ffffffffffffffff x8/s0 ffffaf8010747d00 x9/s1 0000000000000000 x10/a0 0000000000000020 x11/a1 ffffffff84b97aa8 x12/a2 0000000000000002 x13/a3 ffffffff831a24bc x14/a4 0000000000000001 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffffff801023b0 x18/s2 0000000000000000 x19/s3 ffffffff836290e0 x20/s4 0000000000000002 x21/s5 00000000009a4110 x22/s6 ffffaf80091958c0 x23/s7 00007fffa11e7c48 x24/s8 ffffffffffffffff x25/s9 0000000000000347 x26/s10 0000000000000001 x27/s11 0000000000000001 x28/t3 fffffffff3f3f300 x29/t4 ffffffff80112282 x30/t5 1ffff5f0020e8f50 x31/t6 0000000000040000 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