Warning: Permanently added '10.128.1.103' (ECDSA) to the list of known hosts. syzkaller login: [ 47.860213][ T3597] chnl_net:caif_netlink_parms(): no params data found [ 47.901502][ T3597] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.909100][ T3597] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.917636][ T3597] device bridge_slave_0 entered promiscuous mode [ 47.926840][ T3597] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.933943][ T3597] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.942673][ T3597] device bridge_slave_1 entered promiscuous mode [ 47.965003][ T3597] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 47.977085][ T3597] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 47.999990][ T3597] team0: Port device team_slave_0 added [ 48.007405][ T3597] team0: Port device team_slave_1 added [ 48.024889][ T3597] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 48.031998][ T3597] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 48.058301][ T3597] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 48.070946][ T3597] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 48.078054][ T3597] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 48.104153][ T3597] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 48.130286][ T3597] device hsr_slave_0 entered promiscuous mode [ 48.137513][ T3597] device hsr_slave_1 entered promiscuous mode [ 48.224160][ T3597] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 48.234609][ T3597] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 48.243621][ T3597] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 48.253493][ T3597] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 48.274495][ T3597] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.281711][ T3597] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.289672][ T3597] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.296792][ T3597] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.341628][ T3597] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.354811][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.366563][ T3603] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.374978][ T3603] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.384590][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.397958][ T3597] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.409902][ T3604] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.419179][ T3604] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.426293][ T3604] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.449798][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.458387][ T26] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.465492][ T26] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.473830][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.482531][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.496430][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.504233][ T3603] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.515784][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.528389][ T3597] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.544671][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 48.552800][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 48.564712][ T3597] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.677284][ T1152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 48.686834][ T1152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 48.695167][ T1152] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 48.702868][ T1152] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 48.713547][ T3597] device veth0_vlan entered promiscuous mode [ 48.724903][ T3597] device veth1_vlan entered promiscuous mode [ 48.744706][ T1152] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 48.753231][ T1152] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 48.762065][ T1152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 48.772836][ T3597] device veth0_macvtap entered promiscuous mode [ 48.783428][ T3597] device veth1_macvtap entered promiscuous mode [ 48.799646][ T3597] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 48.808221][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 48.817662][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 48.829610][ T3597] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 48.837704][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 48.849426][ T3597] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.859243][ T3597] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.868396][ T3597] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 48.877377][ T3597] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.918037][ T3597] netlink: 'syz-executor945': attribute type 2 has an invalid length. [ 48.926790][ T3597] netlink: 194488 bytes leftover after parsing attributes in process `syz-executor945'. [ 48.937915][ T3597] [ 48.940325][ T3597] ============================= [ 48.945808][ T3597] WARNING: suspicious RCU usage [ 48.950675][ T3597] 5.18.0-rc3-syzkaller-00225-g165e3e17fe8f #0 Not tainted [ 48.960470][ T3597] ----------------------------- [ 48.965460][ T3597] net/hsr/hsr_framereg.c:41 suspicious rcu_dereference_check() usage! [ 48.973631][ T3597] [ 48.973631][ T3597] other info that might help us debug this: [ 48.973631][ T3597] [ 48.984571][ T3597] [ 48.984571][ T3597] rcu_scheduler_active = 2, debug_locks = 1 [ 48.993325][ T3597] 3 locks held by syz-executor945/3597: [ 48.999184][ T3597] #0: ffffffff8d5fee90 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 [ 49.007745][ T3597] #1: ffffffff8d5fef48 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x3e0/0x580 [ 49.016913][ T3597] #2: ffffffff8bd81de0 (rcu_read_lock){....}-{1:2}, at: hsr_get_node_list+0xcb/0xa80 [ 49.026663][ T3597] [ 49.026663][ T3597] stack backtrace: [ 49.032564][ T3597] CPU: 0 PID: 3597 Comm: syz-executor945 Not tainted 5.18.0-rc3-syzkaller-00225-g165e3e17fe8f #0 [ 49.043049][ T3597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.053089][ T3597] Call Trace: [ 49.056357][ T3597] [ 49.059276][ T3597] dump_stack_lvl+0xcd/0x134 [ 49.063867][ T3597] hsr_node_get_first+0xc7/0xe0 [ 49.068709][ T3597] hsr_get_next_node+0x1d0/0x320 [ 49.073632][ T3597] hsr_get_node_list+0x333/0xa80 [ 49.078563][ T3597] ? hsr_get_node_status+0xcc0/0xcc0 [ 49.083849][ T3597] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 49.090076][ T3597] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x1b7/0x290 [ 49.097431][ T3597] ? genl_family_rcv_msg_attrs_parse.constprop.0+0xaf/0x290 [ 49.104705][ T3597] genl_family_rcv_msg_doit+0x228/0x320 [ 49.110237][ T3597] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x290/0x290 [ 49.117595][ T3597] ? mutex_lock_io_nested+0x1150/0x1150 [ 49.123134][ T3597] ? genl_op_from_small+0x23/0x3c0 [ 49.128233][ T3597] ? genl_get_cmd+0x3cf/0x480 [ 49.132901][ T3597] genl_rcv_msg+0x328/0x580 [ 49.137394][ T3597] ? genl_get_cmd+0x480/0x480 [ 49.142054][ T3597] ? hsr_get_node_status+0xcc0/0xcc0 [ 49.147331][ T3597] ? lock_release+0x720/0x720 [ 49.152002][ T3597] ? ref_tracker_dir_exit+0x3e0/0x3e0 [ 49.157371][ T3597] netlink_rcv_skb+0x153/0x420 [ 49.162129][ T3597] ? genl_get_cmd+0x480/0x480 [ 49.166799][ T3597] ? netlink_ack+0xa80/0xa80 [ 49.171383][ T3597] ? netlink_deliver_tap+0x1b1/0xc40 [ 49.176667][ T3597] genl_rcv+0x24/0x40 [ 49.180645][ T3597] netlink_unicast+0x543/0x7f0 [ 49.185400][ T3597] ? netlink_attachskb+0x880/0x880 [ 49.190502][ T3597] ? __virt_addr_valid+0x5d/0x2d0 [ 49.195516][ T3597] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 49.201741][ T3597] ? __phys_addr_symbol+0x2c/0x70 [ 49.206761][ T3597] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 49.212464][ T3597] ? __check_object_size+0x16c/0x4f0 [ 49.217740][ T3597] netlink_sendmsg+0x904/0xe00 [ 49.222492][ T3597] ? netlink_unicast+0x7f0/0x7f0 [ 49.227424][ T3597] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 49.233669][ T3597] ? netlink_unicast+0x7f0/0x7f0 [ 49.238612][ T3597] sock_sendmsg+0xcf/0x120 [ 49.243014][ T3597] ____sys_sendmsg+0x6e2/0x800 [ 49.247765][ T3597] ? kernel_sendmsg+0x50/0x50 [ 49.252432][ T3597] ? do_recvmmsg+0x6d0/0x6d0 [ 49.257001][ T3597] ? find_held_lock+0x2d/0x110 [ 49.261754][ T3597] ? find_held_lock+0x2d/0x110 [ 49.266505][ T3597] ___sys_sendmsg+0xf3/0x170 [ 49.271081][ T3597] ? sendmsg_copy_msghdr+0x160/0x160 [ 49.276373][ T3597] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 49.282363][ T3597] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 49.288340][ T3597] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 49.294561][ T3597] ? __fget_light+0x20f/0x270 [ 49.299225][ T3597] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 49.305451][ T3597] __sys_sendmsg+0xe5/0x1b0 [ 49.309941][ T3597] ? __sys_sendmsg_sock+0x30/0x30 [ 49.314958][ T3597] ? syscall_enter_from_user_mode+0x21/0x70 [ 49.320843][ T3597] do_syscall_64+0x35/0xb0 [ 49.325247][ T3597] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 49.331139][ T3597] RIP: 0033:0x7f74bcc048d9 [ 49.335538][ T3597] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 49.355128][ T3597] RSP: 002b:00007ffdc41d5378 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 49.363523][ T3597] RAX: ffffffffffffffda RBX: 00007ffdc41d5388 RCX: 00007f74bcc048d9 [ 49.371476][ T3597] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 49.379448][ T3597] RBP: 0000000000000003 R08: bb1414ac00000000 R09: bb1414ac00000000 [ 49.387407][ T3597] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdc41d5390 [ 49.395359][ T3597] R13: 00007ffdc41d5384 R14: 0000000000000003 R15: 0000000000000000 [ 49.403319][ T3597]