Warning: Permanently added '10.128.0.111' (ECDSA) to the list of known hosts. syzkaller login: [ 49.336888][ T3597] chnl_net:caif_netlink_parms(): no params data found [ 49.379370][ T3597] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.387651][ T3597] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.395791][ T3597] device bridge_slave_0 entered promiscuous mode [ 49.405118][ T3597] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.412398][ T3597] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.420332][ T3597] device bridge_slave_1 entered promiscuous mode [ 49.442986][ T3597] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 49.455659][ T3597] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 49.477881][ T3597] team0: Port device team_slave_0 added [ 49.486904][ T3597] team0: Port device team_slave_1 added [ 49.503737][ T3597] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 49.510816][ 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. [ 49.536878][ T3597] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 49.550021][ T3597] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 49.557103][ 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. [ 49.583216][ T3597] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 49.609081][ T3597] device hsr_slave_0 entered promiscuous mode [ 49.616305][ T3597] device hsr_slave_1 entered promiscuous mode [ 49.702360][ T3597] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 49.713255][ T3597] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 49.721994][ T3597] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.730819][ T3597] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 49.752237][ T3597] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.759439][ T3597] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.767817][ T3597] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.774916][ T3597] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.819432][ T3597] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.834697][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.844269][ T6] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.853685][ T6] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.862372][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.876617][ T3597] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.887981][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.896547][ T26] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.903676][ T26] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.925863][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.934795][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.941870][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.950808][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.959390][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.971051][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.980273][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 49.992739][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.004099][ T3597] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 50.026518][ T3597] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 50.033541][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 50.041700][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 50.156013][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 50.166166][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 50.174860][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 50.182639][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 50.192127][ T3597] device veth0_vlan entered promiscuous mode [ 50.204055][ T3597] device veth1_vlan entered promiscuous mode [ 50.224097][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 50.232569][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 50.240907][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 50.252502][ T3597] device veth0_macvtap entered promiscuous mode [ 50.262449][ T3597] device veth1_macvtap entered promiscuous mode [ 50.277806][ T3597] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 50.286543][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 50.296101][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 50.307572][ T3597] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 50.315491][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 50.326728][ T3597] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.337922][ T3597] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.346673][ T3597] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 50.356123][ T3597] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.393928][ T3597] netlink: 'syz-executor384': attribute type 2 has an invalid length. [ 50.403080][ T3597] netlink: 194488 bytes leftover after parsing attributes in process `syz-executor384'. [ 50.413995][ T3597] [ 50.417153][ T3597] ============================= [ 50.422160][ T3597] WARNING: suspicious RCU usage [ 50.435300][ T3597] 5.18.0-rc1-syzkaller-14448-gfd0493a1e49e #0 Not tainted [ 50.442438][ T3597] ----------------------------- [ 50.447479][ T3597] net/hsr/hsr_framereg.c:41 suspicious rcu_dereference_check() usage! [ 50.455938][ T3597] [ 50.455938][ T3597] other info that might help us debug this: [ 50.455938][ T3597] [ 50.466623][ T3597] [ 50.466623][ T3597] rcu_scheduler_active = 2, debug_locks = 1 [ 50.475198][ T3597] 3 locks held by syz-executor384/3597: [ 50.480732][ T3597] #0: ffffffff8d5fe850 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 [ 50.490369][ T3597] #1: ffffffff8d5fe908 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x3e0/0x580 [ 50.499921][ T3597] #2: ffffffff8bd81d60 (rcu_read_lock){....}-{1:2}, at: hsr_get_node_list+0xcb/0xa80 [ 50.510452][ T3597] [ 50.510452][ T3597] stack backtrace: [ 50.516790][ T3597] CPU: 1 PID: 3597 Comm: syz-executor384 Not tainted 5.18.0-rc1-syzkaller-14448-gfd0493a1e49e #0 [ 50.527278][ T3597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.537415][ T3597] Call Trace: [ 50.540677][ T3597] [ 50.543592][ T3597] dump_stack_lvl+0xcd/0x134 [ 50.548188][ T3597] hsr_node_get_first+0xc7/0xe0 [ 50.553031][ T3597] hsr_get_next_node+0x1d0/0x320 [ 50.557959][ T3597] hsr_get_node_list+0x333/0xa80 [ 50.562889][ T3597] ? hsr_get_node_status+0xcc0/0xcc0 [ 50.568182][ T3597] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 50.574409][ T3597] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x1b7/0x290 [ 50.581813][ T3597] ? genl_family_rcv_msg_attrs_parse.constprop.0+0xaf/0x290 [ 50.589096][ T3597] genl_family_rcv_msg_doit+0x228/0x320 [ 50.594631][ T3597] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x290/0x290 [ 50.602005][ T3597] ? mutex_lock_io_nested+0x1150/0x1150 [ 50.607544][ T3597] ? genl_op_from_small+0x23/0x3c0 [ 50.612642][ T3597] ? genl_get_cmd+0x3cf/0x480 [ 50.617309][ T3597] genl_rcv_msg+0x328/0x580 [ 50.621799][ T3597] ? genl_get_cmd+0x480/0x480 [ 50.626465][ T3597] ? hsr_get_node_status+0xcc0/0xcc0 [ 50.631745][ T3597] ? lock_release+0x720/0x720 [ 50.636408][ T3597] ? ref_tracker_dir_exit+0x3e0/0x3e0 [ 50.641767][ T3597] netlink_rcv_skb+0x153/0x420 [ 50.646519][ T3597] ? genl_get_cmd+0x480/0x480 [ 50.651184][ T3597] ? netlink_ack+0xa80/0xa80 [ 50.655777][ T3597] ? netlink_deliver_tap+0x1b1/0xc40 [ 50.661051][ T3597] genl_rcv+0x24/0x40 [ 50.665124][ T3597] netlink_unicast+0x543/0x7f0 [ 50.669878][ T3597] ? netlink_attachskb+0x880/0x880 [ 50.674978][ T3597] ? __virt_addr_valid+0x5d/0x2d0 [ 50.680016][ T3597] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 50.686269][ T3597] ? __phys_addr_symbol+0x2c/0x70 [ 50.691281][ T3597] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 50.696993][ T3597] ? __check_object_size+0x16c/0x4f0 [ 50.702268][ T3597] netlink_sendmsg+0x904/0xe00 [ 50.707116][ T3597] ? netlink_unicast+0x7f0/0x7f0 [ 50.712048][ T3597] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 50.718272][ T3597] ? netlink_unicast+0x7f0/0x7f0 [ 50.723289][ T3597] sock_sendmsg+0xcf/0x120 [ 50.727699][ T3597] ____sys_sendmsg+0x6e2/0x800 [ 50.732454][ T3597] ? kernel_sendmsg+0x50/0x50 [ 50.737133][ T3597] ? do_recvmmsg+0x6d0/0x6d0 [ 50.741711][ T3597] ? find_held_lock+0x2d/0x110 [ 50.746464][ T3597] ? find_held_lock+0x2d/0x110 [ 50.751215][ T3597] ___sys_sendmsg+0xf3/0x170 [ 50.755792][ T3597] ? sendmsg_copy_msghdr+0x160/0x160 [ 50.761081][ T3597] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 50.767064][ T3597] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 50.773039][ T3597] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 50.779267][ T3597] ? __fget_light+0x20f/0x270 [ 50.783936][ T3597] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 50.790249][ T3597] __sys_sendmsg+0xe5/0x1b0 [ 50.794736][ T3597] ? __sys_sendmsg_sock+0x30/0x30 [ 50.799752][ T3597] ? syscall_enter_from_user_mode+0x21/0x70 [ 50.805631][ T3597] do_syscall_64+0x35/0xb0 [ 50.810032][ T3597] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 50.815906][ T3597] RIP: 0033:0x7f7b0e7388d9 [ 50.820317][ 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 [ 50.839920][ T3597] RSP: 002b:00007ffedbd94598 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 50.848446][ T3597] RAX: ffffffffffffffda RBX: 00007ffedbd945a8 RCX: 00007f7b0e7388d9 [ 50.856415][ T3597] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 50.864378][ T3597] RBP: 0000000000000003 R08: bb1414ac00000000 R09: bb1414ac00000000 [ 50.872338][ T3597] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffedbd945b0 [ 50.880299][ T3597] R13: 00007ffedbd945a4 R14: 0000000000000003 R15: 0000000000000000 [ 50.888274][ T3597]