Warning: Permanently added '10.128.0.119' (ECDSA) to the list of known hosts. syzkaller login: [ 65.414324][ T6906] IPVS: ftp: loaded support on port[0] = 21 [ 65.523396][ T6906] chnl_net:caif_netlink_parms(): no params data found [ 65.581660][ T6906] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.589235][ T6906] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.599716][ T6906] device bridge_slave_0 entered promiscuous mode [ 65.609297][ T6906] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.617705][ T6906] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.625844][ T6906] device bridge_slave_1 entered promiscuous mode [ 65.647564][ T6906] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.659057][ T6906] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.682674][ T6906] team0: Port device team_slave_0 added [ 65.690877][ T6906] team0: Port device team_slave_1 added [ 65.708841][ T6906] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.716010][ T6906] 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. [ 65.741961][ T6906] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.754434][ T6906] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.761441][ T6906] 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. [ 65.787407][ T6906] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.815942][ T6906] device hsr_slave_0 entered promiscuous mode [ 65.823023][ T6906] device hsr_slave_1 entered promiscuous mode [ 65.910546][ T6906] debugfs: Directory 'ethtool' with parent 'netdevsim0' already present! [ 65.925254][ T6906] debugfs: Directory 'ethtool' with parent 'netdevsim0' already present! [ 65.937603][ T6906] debugfs: Directory 'ethtool' with parent 'netdevsim0' already present! [ 65.953924][ T6906] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.964866][ T6906] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.976336][ T6906] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.987318][ T6906] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.015277][ T6906] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.022493][ T6906] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.030694][ T6906] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.037793][ T6906] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.088151][ T6906] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.103815][ T2639] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.114891][ T2639] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.123595][ T2639] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.133406][ T2639] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.146977][ T6906] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.158707][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.167793][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.175284][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.192103][ T2639] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.201373][ T2639] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.208452][ T2639] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.232762][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.242446][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.251980][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.266925][ T6906] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 66.278736][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.287294][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.295632][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.316498][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.324176][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.338870][ T6906] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.359462][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.381845][ T2470] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.392167][ T2470] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.399875][ T2470] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.411502][ T6906] device veth0_vlan entered promiscuous mode [ 66.424069][ T6906] device veth1_vlan entered promiscuous mode [ 66.446566][ T2470] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.455535][ T2470] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.464835][ T2470] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.478540][ T6906] device veth0_macvtap entered promiscuous mode [ 66.488321][ T6906] device veth1_macvtap entered promiscuous mode [ 66.503163][ T2470] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.519303][ T6906] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.526870][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.536666][ T2589] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.549270][ T6906] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.557973][ T2470] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.567761][ T2470] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.579304][ T6906] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.588553][ T6906] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 66.600465][ T6906] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.609192][ T6906] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.722643][ T6906] [ 66.725118][ T6906] ============================= [ 66.730314][ T6906] WARNING: suspicious RCU usage [ 66.735164][ T6906] 5.9.0-rc3-syzkaller #0 Not tainted [ 66.740860][ T6906] ----------------------------- [ 66.745726][ T6906] drivers/net/bonding/bond_main.c:395 suspicious rcu_dereference_check() usage! [ 66.755733][ T6906] [ 66.755733][ T6906] other info that might help us debug this: [ 66.755733][ T6906] [ 66.767558][ T6906] [ 66.767558][ T6906] rcu_scheduler_active = 2, debug_locks = 1 [ 66.776119][ T6906] 1 lock held by syz-executor139/6906: [ 66.781663][ T6906] #0: ffff888094931a68 (&net->xfrm.xfrm_cfg_mutex){+.+.}-{3:3}, at: xfrm_netlink_rcv+0x5c/0x90 [ 66.792261][ T6906] [ 66.792261][ T6906] stack backtrace: [ 66.798155][ T6906] CPU: 0 PID: 6906 Comm: syz-executor139 Not tainted 5.9.0-rc3-syzkaller #0 [ 66.806821][ T6906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.816862][ T6906] Call Trace: [ 66.820147][ T6906] dump_stack+0x198/0x1fd [ 66.824478][ T6906] bond_ipsec_add_sa+0x1dc/0x240 [ 66.829411][ T6906] xfrm_dev_state_add+0x2da/0x7b0 [ 66.834423][ T6906] xfrm_add_sa+0x2166/0x34f0 [ 66.839015][ T6906] ? xfrm_send_policy_notify+0x17a0/0x17a0 [ 66.844819][ T6906] ? bpf_lsm_capable+0x5/0x10 [ 66.849487][ T6906] ? security_capable+0x8f/0xc0 [ 66.854333][ T6906] ? __nla_parse+0x3d/0x4a [ 66.858818][ T6906] ? xfrm_send_policy_notify+0x17a0/0x17a0 [ 66.864614][ T6906] xfrm_user_rcv_msg+0x41e/0x720 [ 66.869531][ T6906] ? xfrm_do_migrate+0x800/0x800 [ 66.874451][ T6906] ? __schedule+0xed1/0x2280 [ 66.879037][ T6906] ? __mutex_lock+0xc00/0x10e0 [ 66.883788][ T6906] netlink_rcv_skb+0x15a/0x430 [ 66.888538][ T6906] ? xfrm_do_migrate+0x800/0x800 [ 66.894001][ T6906] ? netlink_ack+0xa10/0xa10 [ 66.898580][ T6906] xfrm_netlink_rcv+0x6b/0x90 [ 66.903256][ T6906] netlink_unicast+0x533/0x7d0 [ 66.908002][ T6906] ? netlink_attachskb+0x810/0x810 [ 66.913100][ T6906] ? __phys_addr_symbol+0x2c/0x70 [ 66.918110][ T6906] ? __check_object_size+0x171/0x3e4 [ 66.923402][ T6906] netlink_sendmsg+0x856/0xd90 [ 66.928168][ T6906] ? netlink_unicast+0x7d0/0x7d0 [ 66.933179][ T6906] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 66.938465][ T6906] ? netlink_unicast+0x7d0/0x7d0 [ 66.943397][ T6906] sock_sendmsg+0xcf/0x120 [ 66.947800][ T6906] ____sys_sendmsg+0x6e8/0x810 [ 66.952571][ T6906] ? kernel_sendmsg+0x50/0x50 [ 66.957233][ T6906] ? do_recvmmsg+0x6d0/0x6d0 [ 66.961827][ T6906] ? lock_is_held_type+0xbb/0xf0 [ 66.966758][ T6906] ? find_held_lock+0x2d/0x110 [ 66.971508][ T6906] ___sys_sendmsg+0xf3/0x170 [ 66.976083][ T6906] ? sendmsg_copy_msghdr+0x160/0x160 [ 66.981358][ T6906] ? check_preemption_disabled+0x50/0x130 [ 66.987065][ T6906] ? do_huge_pmd_anonymous_page+0x1c22/0x2200 [ 66.993137][ T6906] ? do_huge_pmd_anonymous_page+0x8f2/0x2200 [ 66.999128][ T6906] ? handle_mm_fault+0xb75/0x46d0 [ 67.004151][ T6906] ? lock_is_held_type+0xbb/0xf0 [ 67.009081][ T6906] ? find_held_lock+0x2d/0x110 [ 67.013840][ T6906] ? __fget_light+0x215/0x280 [ 67.018514][ T6906] __sys_sendmsg+0xe5/0x1b0 [ 67.023010][ T6906] ? __sys_sendmsg_sock+0xb0/0xb0 [ 67.028184][ T6906] ? syscall_enter_from_user_mode+0x20/0x290 [ 67.034628][ T6906] ? lockdep_hardirqs_on+0x53/0x100 [ 67.039842][ T6906] do_syscall_64+0x2d/0x70 [ 67.044270][ T6906] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.050149][ T6906] RIP: 0033:0x4439c9 [ 67.054033][ T6906] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 eb 0d fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.073626][ T6906] RSP: 002b:00007ffe71cd9fb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 67.082025][ T6906] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004439c9 [ 67.089994][ T6906] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 67.097968][ T6906] RBP: 00007ffe71cd9fd0 R08: 00000000bb1414ac R09: 00000000bb1414ac [ 67.105928][ T6906] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe71cda000 [ 67.113898][ T6906] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 67.126902][ T6906] bond0: (slave bond_slave_0): Slave does not support ipsec offload