[ 36.631432] audit: type=1400 audit(1584056656.212:40): avc: denied { create } for pid=6784 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 36.809395] random: sshd: uninitialized urandom read (32 bytes read) [ 37.552022] random: sshd: uninitialized urandom read (32 bytes read) [ 37.740770] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.197' (ECDSA) to the list of known hosts. 2020/03/12 23:44:23 parsed 1 programs 2020/03/12 23:44:23 executed programs: 0 [ 44.060917] IPVS: ftp: loaded support on port[0] = 21 [ 44.881118] chnl_net:caif_netlink_parms(): no params data found [ 44.892072] IPVS: ftp: loaded support on port[0] = 21 [ 44.911283] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.917913] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.924874] device bridge_slave_0 entered promiscuous mode [ 44.932152] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.938942] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.945985] device bridge_slave_1 entered promiscuous mode [ 44.959581] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 44.968231] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 44.988286] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.995977] team0: Port device team_slave_0 added [ 45.002847] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 45.009884] team0: Port device team_slave_1 added [ 45.016914] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 45.028318] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 45.111879] device hsr_slave_0 entered promiscuous mode [ 45.150328] device hsr_slave_1 entered promiscuous mode [ 45.205381] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 45.215703] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 45.236693] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.243124] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.249897] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.256269] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.297149] chnl_net:caif_netlink_parms(): no params data found [ 45.305199] IPVS: ftp: loaded support on port[0] = 21 [ 45.336983] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.343470] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.350562] device bridge_slave_0 entered promiscuous mode [ 45.361612] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.367970] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.375110] device bridge_slave_1 entered promiscuous mode [ 45.392753] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 45.405918] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 45.433495] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 45.440760] team0: Port device team_slave_0 added [ 45.449124] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 45.456448] team0: Port device team_slave_1 added [ 45.463502] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 45.481936] IPVS: ftp: loaded support on port[0] = 21 [ 45.508959] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 45.538616] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 45.544887] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.592529] device hsr_slave_0 entered promiscuous mode [ 45.630300] device hsr_slave_1 entered promiscuous mode [ 45.705363] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 45.722288] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.728744] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 45.735701] chnl_net:caif_netlink_parms(): no params data found [ 45.758966] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.768716] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.775810] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.795234] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 45.801503] 8021q: adding VLAN 0 to HW filter on device team0 [ 45.801653] IPVS: ftp: loaded support on port[0] = 21 [ 45.818637] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 45.826233] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.834418] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.840821] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.847761] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.856024] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.862509] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.902635] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 45.910878] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.917225] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.924597] device bridge_slave_0 entered promiscuous mode [ 45.957474] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.965677] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.972778] device bridge_slave_1 entered promiscuous mode [ 45.987695] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 46.002704] chnl_net:caif_netlink_parms(): no params data found [ 46.014614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.023313] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 46.034162] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 46.048240] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 46.063997] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 46.071652] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.079634] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.099220] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 46.128181] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 46.137932] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.147005] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 46.156439] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 46.167202] team0: Port device team_slave_0 added [ 46.172660] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.178988] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.188309] device bridge_slave_0 entered promiscuous mode [ 46.188475] IPVS: ftp: loaded support on port[0] = 21 [ 46.195113] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.208756] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.215651] device bridge_slave_1 entered promiscuous mode [ 46.223308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 46.230931] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.240474] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 46.257198] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 46.264770] team0: Port device team_slave_1 added [ 46.278381] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.292086] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.299487] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.308312] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 46.314443] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.323662] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 46.333494] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 46.342654] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 46.382476] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 46.393069] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 46.399148] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.407425] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 46.421064] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 46.427856] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.452875] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 46.513191] device hsr_slave_0 entered promiscuous mode [ 46.551075] device hsr_slave_1 entered promiscuous mode [ 46.591951] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 46.609021] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 46.621949] chnl_net:caif_netlink_parms(): no params data found [ 46.630717] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 46.640244] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 46.648234] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 46.656312] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.663924] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.670289] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.677365] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 46.685085] team0: Port device team_slave_0 added [ 46.690918] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 46.698040] team0: Port device team_slave_1 added [ 46.715984] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.723157] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 46.733096] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 46.741580] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 46.761279] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 46.769442] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 46.777319] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.785331] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.791707] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.863499] device hsr_slave_0 entered promiscuous mode [ 46.880351] device hsr_slave_1 entered promiscuous mode [ 46.933814] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 46.942238] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 46.955479] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.963878] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 46.971177] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 46.994542] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.001039] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.008045] device bridge_slave_0 entered promiscuous mode [ 47.014868] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.021643] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.028489] device bridge_slave_1 entered promiscuous mode [ 47.051733] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 47.059630] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 47.107651] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 47.131994] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 47.146021] FAULT_INJECTION: forcing a failure. [ 47.146021] name failslab, interval 1, probability 0, space 0, times 1 [ 47.163284] CPU: 0 PID: 6914 Comm: syz-executor.0 Not tainted 4.14.173-syzkaller #0 [ 47.171420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.180918] Call Trace: [ 47.183488] dump_stack+0xf7/0x13b [ 47.187107] should_fail.cold.3+0x105/0x14b [ 47.191519] should_failslab+0xba/0xf0 [ 47.195391] kmem_cache_alloc+0x2cf/0x790 [ 47.199519] ? memcpy+0x45/0x50 [ 47.202846] ? kstrdup+0x42/0x60 [ 47.206194] __kernfs_new_node+0x63/0x470 [ 47.210322] ? lock_downgrade+0x7f0/0x7f0 [ 47.214465] kernfs_new_node+0x5e/0xe0 [ 47.218345] kernfs_create_link+0x25/0x130 [ 47.222621] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 47.227804] sysfs_create_link+0x43/0xb0 [ 47.231848] netdev_adjacent_sysfs_add+0x94/0xb0 [ 47.236584] ? napi_disable+0x80/0x80 [ 47.240418] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 47.245616] __netdev_upper_dev_link+0x174/0x1f0 [ 47.250355] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 47.255096] netdev_master_upper_dev_link+0x14/0x20 [ 47.260122] batadv_hardif_enable_interface+0x1af/0x990 [ 47.265681] batadv_softif_slave_add+0x82/0xe0 [ 47.270351] do_set_master+0x163/0x1f0 [ 47.274229] do_setlink+0x9dd/0x2c50 [ 47.277934] ? trace_hardirqs_on+0x10/0x10 [ 47.282148] ? find_held_lock+0x36/0x1d0 [ 47.286194] ? trace_hardirqs_off+0x10/0x10 [ 47.290494] ? rtnl_register+0x20/0x20 [ 47.294361] ? find_held_lock+0x36/0x1d0 [ 47.298432] ? is_bpf_text_address+0x60/0xe0 [ 47.302828] ? lock_downgrade+0x7f0/0x7f0 [ 47.306963] ? __lock_acquire+0x6a4/0x4500 [ 47.311183] ? __lock_acquire+0x6a4/0x4500 [ 47.315396] ? __kernel_text_address+0xd/0x40 [ 47.319877] ? unwind_get_return_address+0x61/0xa0 [ 47.325073] ? __lock_acquire+0x6a4/0x4500 [ 47.329490] rtnl_newlink+0xe0c/0x1390 [ 47.333366] ? trace_hardirqs_on+0x10/0x10 [ 47.337594] ? rtnl_link_unregister+0x270/0x270 [ 47.342303] ? find_held_lock+0x36/0x1d0 [ 47.346455] ? mutex_spin_on_owner+0x1f6/0x5c0 [ 47.351037] ? debug_smp_processor_id+0x17/0x20 [ 47.355687] ? osq_unlock+0x19/0x1c0 [ 47.359464] rtnetlink_rcv_msg+0x34f/0x9d0 [ 47.363712] ? rtnl_bridge_getlink+0x760/0x760 [ 47.368287] ? find_held_lock+0x36/0x1d0 [ 47.372340] netlink_rcv_skb+0x133/0x370 [ 47.376472] ? rtnl_bridge_getlink+0x760/0x760 [ 47.381051] ? netlink_ack+0xa00/0xa00 [ 47.384940] ? netlink_deliver_tap+0x8e/0x920 [ 47.389433] rtnetlink_rcv+0x10/0x20 [ 47.393220] netlink_unicast+0x40d/0x5f0 [ 47.397286] ? netlink_attachskb+0x6e0/0x6e0 [ 47.401679] netlink_sendmsg+0x730/0xbd0 [ 47.405730] ? netlink_unicast+0x5f0/0x5f0 [ 47.409948] ? selinux_socket_sendmsg+0x31/0x40 [ 47.414611] ? security_socket_sendmsg+0x6a/0xa0 [ 47.419358] ? netlink_unicast+0x5f0/0x5f0 [ 47.423585] sock_sendmsg+0xb5/0xf0 [ 47.427224] ___sys_sendmsg+0x625/0x920 [ 47.431297] ? trace_hardirqs_off+0x10/0x10 [ 47.435693] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 47.440444] ? find_held_lock+0x36/0x1d0 [ 47.444546] ? lock_downgrade+0x7f0/0x7f0 [ 47.448795] ? __fget+0x1ca/0x2f0 [ 47.452230] ? __fget_light+0x166/0x200 [ 47.456203] ? __fdget+0xe/0x10 [ 47.459465] ? sockfd_lookup_light+0x1c/0x150 [ 47.463973] __sys_sendmsg+0xc1/0x140 [ 47.467766] ? SyS_shutdown+0x180/0x180 [ 47.471730] ? __sb_end_write+0xa4/0xd0 [ 47.475697] ? mutex_unlock+0xd/0x10 [ 47.479404] ? do_syscall_64+0x4c/0x5b0 [ 47.483414] ? __sys_sendmsg+0x140/0x140 [ 47.487465] SyS_sendmsg+0xd/0x20 [ 47.490901] do_syscall_64+0x1c7/0x5b0 [ 47.494842] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.499677] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 47.504855] RIP: 0033:0x459ef9 [ 47.508024] RSP: 002b:00007f666a648c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 47.515728] RAX: ffffffffffffffda RBX: 00007f666a648c90 RCX: 0000000000459ef9 [ 47.523128] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 47.530498] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 47.537864] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f666a6496d4 [ 47.545118] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 47.557732] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 47.566776] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 47.575491] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 47.584114] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 47.596404] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 47.604385] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 47.612776] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 47.628101] 8021q: adding VLAN 0 to HW filter on device bond0 [ 47.636425] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 47.645198] chnl_net:caif_netlink_parms(): no params data found [ 47.669216] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 47.684637] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 47.723934] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 47.733521] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 47.743652] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 47.751127] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 47.757957] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 47.768264] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 47.776177] team0: Port device team_slave_0 added [ 47.782331] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 47.789658] team0: Port device team_slave_1 added [ 47.795448] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.802047] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.808958] device bridge_slave_0 entered promiscuous mode [ 47.817444] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 47.824044] 8021q: adding VLAN 0 to HW filter on device team0 [ 47.837499] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 47.845821] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 47.853748] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.867053] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.873900] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.883512] device bridge_slave_1 entered promiscuous mode [ 47.889703] FAULT_INJECTION: forcing a failure. [ 47.889703] name failslab, interval 1, probability 0, space 0, times 0 [ 47.901180] CPU: 1 PID: 6926 Comm: syz-executor.0 Not tainted 4.14.173-syzkaller #0 [ 47.908982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.918442] Call Trace: [ 47.921020] dump_stack+0xf7/0x13b [ 47.924580] should_fail.cold.3+0x105/0x14b [ 47.929144] should_failslab+0xba/0xf0 [ 47.933032] kmem_cache_alloc+0x2cf/0x790 [ 47.937166] ? memcpy+0x45/0x50 [ 47.940456] ? kstrdup+0x42/0x60 [ 47.943963] __kernfs_new_node+0x63/0x470 [ 47.948103] ? lock_downgrade+0x7f0/0x7f0 [ 47.952263] kernfs_new_node+0x5e/0xe0 [ 47.956162] kernfs_create_link+0x25/0x130 [ 47.960386] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 47.965591] sysfs_create_link+0x43/0xb0 [ 47.969682] netdev_adjacent_sysfs_add+0x94/0xb0 [ 47.974922] ? napi_disable+0x80/0x80 [ 47.978715] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 47.983900] __netdev_upper_dev_link+0x174/0x1f0 [ 47.988643] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 47.993485] netdev_master_upper_dev_link+0x14/0x20 [ 47.998521] batadv_hardif_enable_interface+0x1af/0x990 [ 48.003874] batadv_softif_slave_add+0x82/0xe0 [ 48.008444] do_set_master+0x163/0x1f0 [ 48.012364] do_setlink+0x9dd/0x2c50 [ 48.016105] ? find_held_lock+0x36/0x1d0 [ 48.020169] ? rtnl_register+0x20/0x20 [ 48.024057] ? load_balance+0xb38/0x2190 [ 48.028190] ? lock_downgrade+0x7f0/0x7f0 [ 48.032389] ? lock_pin_lock+0x340/0x340 [ 48.036474] ? __lock_acquire+0x6a4/0x4500 [ 48.040698] ? trace_hardirqs_off+0x10/0x10 [ 48.045004] ? __lock_is_held+0xb5/0x140 [ 48.049059] ? trace_hardirqs_off+0x10/0x10 [ 48.053373] rtnl_newlink+0xe0c/0x1390 [ 48.057252] ? rtnl_link_unregister+0x270/0x270 [ 48.061901] ? finish_task_switch+0x178/0x650 [ 48.066374] ? finish_task_switch+0x14d/0x650 [ 48.070852] ? find_held_lock+0x36/0x1d0 [ 48.074914] ? __mutex_lock+0x8b7/0x14c0 [ 48.079045] ? lock_downgrade+0x7f0/0x7f0 [ 48.083186] ? do_raw_spin_unlock+0x16a/0x250 [ 48.087688] rtnetlink_rcv_msg+0x34f/0x9d0 [ 48.091906] ? rtnl_bridge_getlink+0x760/0x760 [ 48.096466] ? find_held_lock+0x36/0x1d0 [ 48.100512] netlink_rcv_skb+0x133/0x370 [ 48.104565] ? rtnl_bridge_getlink+0x760/0x760 [ 48.109126] ? netlink_ack+0xa00/0xa00 [ 48.112994] ? netlink_deliver_tap+0x8e/0x920 [ 48.117473] rtnetlink_rcv+0x10/0x20 [ 48.121179] netlink_unicast+0x40d/0x5f0 [ 48.125217] ? netlink_attachskb+0x6e0/0x6e0 [ 48.130044] netlink_sendmsg+0x730/0xbd0 [ 48.134093] ? netlink_unicast+0x5f0/0x5f0 [ 48.138319] ? selinux_socket_sendmsg+0x31/0x40 [ 48.143113] ? security_socket_sendmsg+0x6a/0xa0 [ 48.147921] ? netlink_unicast+0x5f0/0x5f0 [ 48.152163] sock_sendmsg+0xb5/0xf0 [ 48.155789] ___sys_sendmsg+0x625/0x920 [ 48.159773] ? trace_hardirqs_off+0x10/0x10 [ 48.164100] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 48.168854] ? find_held_lock+0x36/0x1d0 [ 48.172913] ? lock_downgrade+0x7f0/0x7f0 [ 48.177741] ? __fget+0x1ca/0x2f0 [ 48.181201] ? __fget_light+0x166/0x200 [ 48.185232] ? __fdget+0xe/0x10 [ 48.188653] ? sockfd_lookup_light+0x1c/0x150 [ 48.193135] __sys_sendmsg+0xc1/0x140 [ 48.196915] ? SyS_shutdown+0x180/0x180 [ 48.201023] ? __sb_end_write+0xa4/0xd0 [ 48.204992] ? mutex_unlock+0xd/0x10 [ 48.208699] ? do_syscall_64+0x4c/0x5b0 [ 48.212727] ? __sys_sendmsg+0x140/0x140 [ 48.216771] SyS_sendmsg+0xd/0x20 [ 48.220208] do_syscall_64+0x1c7/0x5b0 [ 48.224075] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.228901] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.234242] RIP: 0033:0x459ef9 [ 48.237414] RSP: 002b:00007f666a648c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 48.245108] RAX: ffffffffffffffda RBX: 00007f666a648c90 RCX: 0000000000459ef9 [ 48.252364] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 48.259628] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 48.266897] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f666a6496d4 [ 48.274160] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 48.284626] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 48.300692] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.316002] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 48.325245] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 48.331954] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.357666] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.366134] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.374174] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.381968] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.388344] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.397670] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 48.452295] device hsr_slave_0 entered promiscuous mode [ 48.510298] device hsr_slave_1 entered promiscuous mode [ 48.564677] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 48.572049] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 48.579828] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.587739] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 48.595547] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 48.603716] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.612640] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.619014] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.628871] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.636295] FAULT_INJECTION: forcing a failure. [ 48.636295] name failslab, interval 1, probability 0, space 0, times 0 [ 48.648448] CPU: 1 PID: 6934 Comm: syz-executor.0 Not tainted 4.14.173-syzkaller #0 [ 48.656790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.666711] Call Trace: [ 48.669284] dump_stack+0xf7/0x13b [ 48.673167] should_fail.cold.3+0x105/0x14b [ 48.677573] should_failslab+0xba/0xf0 [ 48.682314] kmem_cache_alloc_node+0x287/0x790 [ 48.686905] __alloc_skb+0x92/0x500 [ 48.690631] ? skb_trim+0x160/0x160 [ 48.694259] ? if_nlmsg_size+0x2d9/0x6f0 [ 48.698303] rtmsg_ifinfo_build_skb+0x68/0x120 [ 48.702864] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 48.707754] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 48.712688] rtnetlink_event+0xc2/0x110 [ 48.716835] notifier_call_chain+0xd6/0x150 [ 48.721164] raw_notifier_call_chain+0x11/0x20 [ 48.726068] call_netdevice_notifiers_info+0x4b/0x60 [ 48.731178] __netdev_upper_dev_link+0x18e/0x1f0 [ 48.735944] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 48.740700] netdev_master_upper_dev_link+0x14/0x20 [ 48.745729] batadv_hardif_enable_interface+0x1af/0x990 [ 48.751258] batadv_softif_slave_add+0x82/0xe0 [ 48.755832] do_set_master+0x163/0x1f0 [ 48.759697] do_setlink+0x9dd/0x2c50 [ 48.763394] ? find_held_lock+0x36/0x1d0 [ 48.767446] ? rtnl_register+0x20/0x20 [ 48.771322] ? load_balance+0xb38/0x2190 [ 48.775369] ? lock_downgrade+0x7f0/0x7f0 [ 48.779714] ? lock_pin_lock+0x340/0x340 [ 48.784416] ? __lock_acquire+0x6a4/0x4500 [ 48.788646] ? trace_hardirqs_off+0x10/0x10 [ 48.792959] ? __lock_is_held+0xb5/0x140 [ 48.797026] ? trace_hardirqs_off+0x10/0x10 [ 48.801340] rtnl_newlink+0xe0c/0x1390 [ 48.805211] ? rtnl_link_unregister+0x270/0x270 [ 48.809858] ? finish_task_switch+0x178/0x650 [ 48.814331] ? finish_task_switch+0x14d/0x650 [ 48.818805] ? find_held_lock+0x36/0x1d0 [ 48.822849] ? __mutex_lock+0x8b7/0x14c0 [ 48.826987] ? lock_downgrade+0x7f0/0x7f0 [ 48.831123] ? do_raw_spin_unlock+0x16a/0x250 [ 48.835767] rtnetlink_rcv_msg+0x34f/0x9d0 [ 48.839983] ? rtnl_bridge_getlink+0x760/0x760 [ 48.844562] ? find_held_lock+0x36/0x1d0 [ 48.848620] netlink_rcv_skb+0x133/0x370 [ 48.852663] ? rtnl_bridge_getlink+0x760/0x760 [ 48.857223] ? netlink_ack+0xa00/0xa00 [ 48.861183] ? netlink_deliver_tap+0x8e/0x920 [ 48.865754] rtnetlink_rcv+0x10/0x20 [ 48.869446] netlink_unicast+0x40d/0x5f0 [ 48.873511] ? netlink_attachskb+0x6e0/0x6e0 [ 48.877922] netlink_sendmsg+0x730/0xbd0 [ 48.882232] ? netlink_unicast+0x5f0/0x5f0 [ 48.886450] ? selinux_socket_sendmsg+0x31/0x40 [ 48.891102] ? security_socket_sendmsg+0x6a/0xa0 [ 48.895846] ? netlink_unicast+0x5f0/0x5f0 [ 48.900061] sock_sendmsg+0xb5/0xf0 [ 48.903682] ___sys_sendmsg+0x625/0x920 [ 48.907633] ? trace_hardirqs_off+0x10/0x10 [ 48.911940] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 48.916694] ? find_held_lock+0x36/0x1d0 [ 48.920934] ? lock_downgrade+0x7f0/0x7f0 [ 48.925257] ? __fget+0x1ca/0x2f0 [ 48.928717] ? __fget_light+0x166/0x200 [ 48.933473] ? __fdget+0xe/0x10 [ 48.937167] ? sockfd_lookup_light+0x1c/0x150 [ 48.941645] __sys_sendmsg+0xc1/0x140 [ 48.945442] ? SyS_shutdown+0x180/0x180 [ 48.949657] ? __sb_end_write+0xa4/0xd0 [ 48.953613] ? mutex_unlock+0xd/0x10 [ 48.957309] ? do_syscall_64+0x4c/0x5b0 [ 48.961266] ? __sys_sendmsg+0x140/0x140 [ 48.965396] SyS_sendmsg+0xd/0x20 [ 48.968837] do_syscall_64+0x1c7/0x5b0 [ 48.972720] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.977552] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.982722] RIP: 0033:0x459ef9 [ 48.986057] RSP: 002b:00007f666a648c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 48.993751] RAX: ffffffffffffffda RBX: 00007f666a648c90 RCX: 0000000000459ef9 [ 49.001007] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 49.008263] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 49.015526] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f666a6496d4 [ 49.022777] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 49.033217] batman_adv: batadv0: Adding interface: team0 [ 49.038926] batman_adv: batadv0: The MTU of interface team0 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. [ 49.066207] batman_adv: batadv0: Interface activated: team0 2020/03/12 23:44:28 executed programs: 13 [ 49.092084] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 49.106333] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 49.125111] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 49.134717] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 49.143443] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 49.153789] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.160678] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 49.167802] team0: Port device team_slave_0 added [ 49.173846] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 49.181002] team0: Port device team_slave_1 added [ 49.196979] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.204452] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.216540] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 49.227044] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.233864] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 49.241985] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 49.249622] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.259586] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.269513] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 49.334457] device hsr_slave_0 entered promiscuous mode [ 49.380316] device hsr_slave_1 entered promiscuous mode [ 49.424479] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 49.431459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 49.438289] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.447598] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 49.459976] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 49.469141] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 49.475866] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.482675] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 49.491115] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.502205] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 49.515536] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 49.526620] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 49.536582] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 49.546250] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 49.557752] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 49.565195] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.575246] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.582864] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.589208] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.596721] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 49.604790] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.613029] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.619385] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.626522] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 49.634245] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 49.642640] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 49.654320] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 49.664049] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 49.681600] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 49.693600] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 49.699625] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 49.707872] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 49.717576] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 49.732352] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 49.745221] FAULT_INJECTION: forcing a failure. [ 49.745221] name failslab, interval 1, probability 0, space 0, times 0 [ 49.757314] CPU: 0 PID: 6947 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0 [ 49.765210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.774558] Call Trace: [ 49.777130] dump_stack+0xf7/0x13b [ 49.780658] should_fail.cold.3+0x105/0x14b [ 49.784986] should_failslab+0xba/0xf0 [ 49.788872] kmem_cache_alloc_node+0x287/0x790 [ 49.793447] __alloc_skb+0x92/0x500 [ 49.797058] ? skb_trim+0x160/0x160 [ 49.800678] ? if_nlmsg_size+0x2d9/0x6f0 [ 49.804732] rtmsg_ifinfo_build_skb+0x68/0x120 [ 49.809307] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 49.814152] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 49.819085] rtnetlink_event+0xc2/0x110 [ 49.823066] notifier_call_chain+0xd6/0x150 [ 49.827404] raw_notifier_call_chain+0x11/0x20 [ 49.831967] call_netdevice_notifiers_info+0x4b/0x60 [ 49.837139] __netdev_upper_dev_link+0x18e/0x1f0 [ 49.841876] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 49.846648] netdev_master_upper_dev_link+0x14/0x20 [ 49.851644] batadv_hardif_enable_interface+0x1af/0x990 [ 49.856987] batadv_softif_slave_add+0x82/0xe0 [ 49.861549] do_set_master+0x163/0x1f0 [ 49.865417] do_setlink+0x9dd/0x2c50 [ 49.869125] ? __lock_acquire+0x6a4/0x4500 [ 49.873341] ? rtnl_register+0x20/0x20 [ 49.877211] ? load_balance+0xb38/0x2190 [ 49.881274] ? trace_hardirqs_on+0x10/0x10 [ 49.885515] ? trace_hardirqs_off+0x10/0x10 [ 49.889847] ? __lock_acquire+0x6a4/0x4500 [ 49.894083] ? trace_hardirqs_off+0x10/0x10 [ 49.898402] ? __lock_is_held+0xb5/0x140 [ 49.902459] ? trace_hardirqs_off+0x10/0x10 [ 49.906776] rtnl_newlink+0xe0c/0x1390 [ 49.910666] ? rtnl_link_unregister+0x270/0x270 [ 49.915316] ? finish_task_switch+0x178/0x650 [ 49.919790] ? finish_task_switch+0x14d/0x650 [ 49.924319] ? find_held_lock+0x36/0x1d0 [ 49.928418] ? __mutex_lock+0x8b7/0x14c0 [ 49.932458] ? lock_downgrade+0x7f0/0x7f0 [ 49.936583] ? do_raw_spin_unlock+0x16a/0x250 [ 49.941105] rtnetlink_rcv_msg+0x34f/0x9d0 [ 49.945319] ? rtnl_bridge_getlink+0x760/0x760 [ 49.949891] ? find_held_lock+0x36/0x1d0 [ 49.953944] netlink_rcv_skb+0x133/0x370 [ 49.957993] ? rtnl_bridge_getlink+0x760/0x760 [ 49.962553] ? netlink_ack+0xa00/0xa00 [ 49.966418] ? netlink_deliver_tap+0x8e/0x920 [ 49.970894] rtnetlink_rcv+0x10/0x20 [ 49.974598] netlink_unicast+0x40d/0x5f0 [ 49.978653] ? netlink_attachskb+0x6e0/0x6e0 [ 49.983058] netlink_sendmsg+0x730/0xbd0 [ 49.987108] ? netlink_unicast+0x5f0/0x5f0 [ 49.991366] ? selinux_socket_sendmsg+0x31/0x40 [ 49.996033] ? security_socket_sendmsg+0x6a/0xa0 [ 50.000772] ? netlink_unicast+0x5f0/0x5f0 [ 50.004997] sock_sendmsg+0xb5/0xf0 [ 50.008614] ___sys_sendmsg+0x625/0x920 [ 50.012580] ? trace_hardirqs_off+0x10/0x10 [ 50.016879] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 50.021617] ? find_held_lock+0x36/0x1d0 [ 50.025660] ? lock_downgrade+0x7f0/0x7f0 [ 50.029813] ? __fget+0x1ca/0x2f0 [ 50.033244] ? __fget_light+0x166/0x200 [ 50.037195] ? __fdget+0xe/0x10 [ 50.040456] ? sockfd_lookup_light+0x1c/0x150 [ 50.044942] __sys_sendmsg+0xc1/0x140 [ 50.048738] ? SyS_shutdown+0x180/0x180 [ 50.052702] ? __sb_end_write+0xa4/0xd0 [ 50.056790] ? mutex_unlock+0xd/0x10 [ 50.060495] ? do_syscall_64+0x4c/0x5b0 [ 50.064450] ? __sys_sendmsg+0x140/0x140 [ 50.068498] SyS_sendmsg+0xd/0x20 [ 50.071942] do_syscall_64+0x1c7/0x5b0 [ 50.075812] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.080641] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 50.085808] RIP: 0033:0x459ef9 [ 50.088976] RSP: 002b:00007f2d8618bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 50.096751] RAX: ffffffffffffffda RBX: 00007f2d8618bc90 RCX: 0000000000459ef9 [ 50.104003] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 50.111273] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 50.118527] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d8618c6d4 [ 50.125846] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 50.135959] batman_adv: batadv0: Adding interface: gretap0 [ 50.143992] batman_adv: batadv0: The MTU of interface gretap0 is too small (1462) 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. [ 50.169557] batman_adv: batadv0: Interface activated: gretap0 [ 50.177265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.185050] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.203018] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 50.212787] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 50.223958] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.233880] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 50.242532] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.252297] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.265157] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 50.275343] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 50.285122] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.292311] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 50.299694] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.307368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 50.315144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.323683] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 50.331996] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 50.338012] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 50.348812] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.358515] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.365232] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.371348] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.378146] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.388562] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.399842] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.410785] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 50.422285] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 50.430243] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.437018] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.445587] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.453925] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.460318] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.469631] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.484324] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.496640] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.507350] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.517314] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.525129] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.531502] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.538457] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.545373] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.553253] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.564694] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.572386] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.586487] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.600888] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.608990] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 50.617612] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.625540] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.633662] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.644559] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.652582] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.664412] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 50.671709] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.679567] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.689768] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.696198] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.703258] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 50.711126] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.718816] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.729527] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.739829] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 50.747122] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.756371] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.764162] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.770558] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.778928] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 50.787367] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.796802] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.808375] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 50.815414] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.824117] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 50.835662] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.846173] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.856587] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.868596] FAULT_INJECTION: forcing a failure. [ 50.868596] name failslab, interval 1, probability 0, space 0, times 0 [ 50.884281] CPU: 0 PID: 6972 Comm: syz-executor.2 Not tainted 4.14.173-syzkaller #0 [ 50.892140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.901479] Call Trace: [ 50.904046] dump_stack+0xf7/0x13b [ 50.907568] should_fail.cold.3+0x105/0x14b [ 50.911916] should_failslab+0xba/0xf0 [ 50.915810] kmem_cache_alloc_node+0x287/0x790 [ 50.920411] __alloc_skb+0x92/0x500 [ 50.924021] ? skb_trim+0x160/0x160 [ 50.927633] ? if_nlmsg_size+0x2d9/0x6f0 [ 50.931670] rtmsg_ifinfo_build_skb+0x68/0x120 [ 50.936231] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 50.941047] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 50.945967] rtnetlink_event+0xc2/0x110 [ 50.949917] notifier_call_chain+0xd6/0x150 [ 50.954220] raw_notifier_call_chain+0x11/0x20 [ 50.958781] call_netdevice_notifiers_info+0x4b/0x60 [ 50.963872] __netdev_upper_dev_link+0x18e/0x1f0 [ 50.968603] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 50.973340] netdev_master_upper_dev_link+0x14/0x20 [ 50.978334] batadv_hardif_enable_interface+0x1af/0x990 [ 50.983676] batadv_softif_slave_add+0x82/0xe0 [ 50.988248] do_set_master+0x163/0x1f0 [ 50.992113] do_setlink+0x9dd/0x2c50 [ 50.995805] ? __lock_acquire+0x6a4/0x4500 [ 51.000043] ? rtnl_register+0x20/0x20 [ 51.003918] ? trace_hardirqs_on+0x10/0x10 [ 51.008140] ? trace_hardirqs_off+0x10/0x10 [ 51.012439] ? __lock_acquire+0x6a4/0x4500 [ 51.016653] ? trace_hardirqs_off+0x10/0x10 [ 51.020952] ? __lock_is_held+0xb5/0x140 [ 51.024990] ? trace_hardirqs_off+0x10/0x10 [ 51.029288] ? trace_hardirqs_off+0x10/0x10 [ 51.033587] ? trace_hardirqs_off+0x10/0x10 [ 51.037892] rtnl_newlink+0xe0c/0x1390 [ 51.041760] ? rtnl_link_unregister+0x270/0x270 [ 51.046417] ? finish_task_switch+0x178/0x650 [ 51.050900] ? finish_task_switch+0x14d/0x650 [ 51.055372] ? find_held_lock+0x36/0x1d0 [ 51.059411] ? __mutex_lock+0x8b7/0x14c0 [ 51.063450] ? lock_downgrade+0x7f0/0x7f0 [ 51.067578] ? do_raw_spin_unlock+0x16a/0x250 [ 51.072063] rtnetlink_rcv_msg+0x34f/0x9d0 [ 51.076277] ? rtnl_bridge_getlink+0x760/0x760 [ 51.080857] ? find_held_lock+0x36/0x1d0 [ 51.084900] netlink_rcv_skb+0x133/0x370 [ 51.088952] ? rtnl_bridge_getlink+0x760/0x760 [ 51.093528] ? netlink_ack+0xa00/0xa00 [ 51.097479] ? netlink_deliver_tap+0x8e/0x920 [ 51.102127] rtnetlink_rcv+0x10/0x20 [ 51.105840] netlink_unicast+0x40d/0x5f0 [ 51.109879] ? netlink_attachskb+0x6e0/0x6e0 [ 51.114266] netlink_sendmsg+0x730/0xbd0 [ 51.118310] ? netlink_unicast+0x5f0/0x5f0 [ 51.122531] ? selinux_socket_sendmsg+0x31/0x40 [ 51.127209] ? security_socket_sendmsg+0x6a/0xa0 [ 51.131943] ? netlink_unicast+0x5f0/0x5f0 [ 51.136156] sock_sendmsg+0xb5/0xf0 [ 51.139777] ___sys_sendmsg+0x625/0x920 [ 51.143738] ? trace_hardirqs_off+0x10/0x10 [ 51.148037] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 51.152769] ? find_held_lock+0x36/0x1d0 [ 51.156810] ? lock_downgrade+0x7f0/0x7f0 [ 51.160949] ? __fget+0x1ca/0x2f0 [ 51.164389] ? __fget_light+0x166/0x200 [ 51.168346] ? __fdget+0xe/0x10 [ 51.171626] ? sockfd_lookup_light+0x1c/0x150 [ 51.176111] __sys_sendmsg+0xc1/0x140 [ 51.179890] ? SyS_shutdown+0x180/0x180 [ 51.183840] ? __sb_end_write+0xa4/0xd0 [ 51.187803] ? mutex_unlock+0xd/0x10 [ 51.191499] ? do_syscall_64+0x4c/0x5b0 [ 51.195449] ? __sys_sendmsg+0x140/0x140 [ 51.199498] SyS_sendmsg+0xd/0x20 [ 51.203075] do_syscall_64+0x1c7/0x5b0 [ 51.206950] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.211776] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 51.216996] RIP: 0033:0x459ef9 [ 51.220173] RSP: 002b:00007fa8a10f3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 51.227991] RAX: ffffffffffffffda RBX: 00007fa8a10f3c90 RCX: 0000000000459ef9 [ 51.235245] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 51.242544] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 51.249800] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8a10f46d4 [ 51.257075] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 51.269052] batman_adv: batadv0: Adding interface: gretap0 [ 51.275442] batman_adv: batadv0: The MTU of interface gretap0 is too small (1462) 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. [ 51.300153] batman_adv: batadv0: Interface activated: gretap0 [ 51.309818] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 51.318252] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 51.329143] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.337436] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.346510] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.355135] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.364990] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.379202] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 51.386084] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.394213] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.404307] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 51.415509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.423110] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.433875] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.444206] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 51.451877] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 51.464476] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.475209] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.489523] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 51.506311] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.494364] FAULT_INJECTION: forcing a failure. [ 52.494364] name failslab, interval 1, probability 0, space 0, times 0 [ 52.507199] CPU: 0 PID: 6991 Comm: syz-executor.4 Not tainted 4.14.173-syzkaller #0 [ 52.514991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.524338] Call Trace: [ 52.526922] dump_stack+0xf7/0x13b [ 52.530459] should_fail.cold.3+0x105/0x14b [ 52.534768] should_failslab+0xba/0xf0 [ 52.538641] __kmalloc_track_caller+0x2e4/0x7a0 [ 52.543296] ? kstrdup_const+0x1f/0x30 [ 52.547170] kstrdup+0x2c/0x60 [ 52.550354] kstrdup_const+0x1f/0x30 [ 52.554081] __kernfs_new_node+0x27/0x470 [ 52.558211] ? lock_downgrade+0x7f0/0x7f0 [ 52.562353] kernfs_new_node+0x5e/0xe0 [ 52.566222] kernfs_create_link+0x25/0x130 [ 52.570435] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 52.575643] sysfs_create_link+0x43/0xb0 [ 52.579702] netdev_adjacent_sysfs_add+0x94/0xb0 [ 52.584483] ? napi_disable+0x80/0x80 [ 52.588701] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 52.593872] __netdev_upper_dev_link+0x174/0x1f0 [ 52.598631] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 52.603373] netdev_master_upper_dev_link+0x14/0x20 [ 52.608387] batadv_hardif_enable_interface+0x1af/0x990 [ 52.613735] batadv_softif_slave_add+0x82/0xe0 [ 52.618297] do_set_master+0x163/0x1f0 [ 52.622164] do_setlink+0x9dd/0x2c50 [ 52.625866] ? trace_hardirqs_on+0x10/0x10 [ 52.630082] ? find_held_lock+0x36/0x1d0 [ 52.634320] ? trace_hardirqs_off+0x10/0x10 [ 52.638631] ? rtnl_register+0x20/0x20 [ 52.642513] ? find_held_lock+0x36/0x1d0 [ 52.646562] ? is_bpf_text_address+0x60/0xe0 [ 52.650995] ? lock_downgrade+0x7f0/0x7f0 [ 52.655150] ? __lock_acquire+0x6a4/0x4500 [ 52.659380] ? __lock_acquire+0x6a4/0x4500 [ 52.663594] ? __kernel_text_address+0xd/0x40 [ 52.668084] ? unwind_get_return_address+0x61/0xa0 [ 52.673027] ? __save_stack_trace+0x7e/0xd0 [ 52.677343] rtnl_newlink+0xe0c/0x1390 [ 52.681210] ? save_stack_trace+0x16/0x20 [ 52.685335] ? save_stack+0x43/0xd0 [ 52.688947] ? rtnl_link_unregister+0x270/0x270 [ 52.693593] ? avc_has_perm_noaudit+0x236/0x400 [ 52.698244] ? lock_downgrade+0x7f0/0x7f0 [ 52.702393] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 52.706802] ? lock_acquire+0x173/0x400 [ 52.710876] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 52.715307] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 52.719718] rtnetlink_rcv_msg+0x34f/0x9d0 [ 52.723948] ? rtnl_bridge_getlink+0x760/0x760 [ 52.728522] ? find_held_lock+0x36/0x1d0 [ 52.732574] netlink_rcv_skb+0x133/0x370 [ 52.736618] ? rtnl_bridge_getlink+0x760/0x760 [ 52.741295] ? netlink_ack+0xa00/0xa00 [ 52.745173] ? netlink_deliver_tap+0x8e/0x920 [ 52.749655] rtnetlink_rcv+0x10/0x20 [ 52.753351] netlink_unicast+0x40d/0x5f0 [ 52.757405] ? netlink_attachskb+0x6e0/0x6e0 [ 52.761805] netlink_sendmsg+0x730/0xbd0 [ 52.765846] ? netlink_unicast+0x5f0/0x5f0 [ 52.770151] ? selinux_socket_sendmsg+0x31/0x40 [ 52.774818] ? security_socket_sendmsg+0x6a/0xa0 [ 52.779569] ? netlink_unicast+0x5f0/0x5f0 [ 52.783791] sock_sendmsg+0xb5/0xf0 [ 52.787398] ___sys_sendmsg+0x625/0x920 [ 52.791368] ? trace_hardirqs_off+0x10/0x10 [ 52.795688] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 52.800429] ? find_held_lock+0x36/0x1d0 [ 52.804471] ? lock_downgrade+0x7f0/0x7f0 [ 52.808601] ? __fget+0x1ca/0x2f0 [ 52.812032] ? __fget_light+0x166/0x200 [ 52.815984] ? __fdget+0xe/0x10 [ 52.819242] ? sockfd_lookup_light+0x1c/0x150 [ 52.823718] __sys_sendmsg+0xc1/0x140 [ 52.827512] ? SyS_shutdown+0x180/0x180 [ 52.831501] ? __sb_end_write+0xa4/0xd0 [ 52.835483] ? mutex_unlock+0xd/0x10 [ 52.839221] ? do_syscall_64+0x4c/0x5b0 [ 52.843509] ? __sys_sendmsg+0x140/0x140 [ 52.847569] SyS_sendmsg+0xd/0x20 [ 52.851084] do_syscall_64+0x1c7/0x5b0 [ 52.854954] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.859798] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 52.865101] RIP: 0033:0x459ef9 [ 52.868810] RSP: 002b:00007fd91524ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 52.876503] RAX: ffffffffffffffda RBX: 00007fd91524ec90 RCX: 0000000000459ef9 [ 52.883752] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 52.891006] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 52.898259] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91524f6d4 [ 52.905508] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 53.088693] FAULT_INJECTION: forcing a failure. [ 53.088693] name failslab, interval 1, probability 0, space 0, times 0 [ 53.100103] CPU: 1 PID: 7002 Comm: syz-executor.1 Not tainted 4.14.173-syzkaller #0 [ 53.108101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.117540] Call Trace: [ 53.120117] dump_stack+0xf7/0x13b [ 53.123666] should_fail.cold.3+0x105/0x14b [ 53.127981] should_failslab+0xba/0xf0 [ 53.131856] kmem_cache_alloc+0x2cf/0x790 [ 53.135983] ? memcpy+0x45/0x50 [ 53.139246] ? kstrdup+0x42/0x60 [ 53.142592] __kernfs_new_node+0x63/0x470 [ 53.146726] ? lock_downgrade+0x7f0/0x7f0 [ 53.150976] kernfs_new_node+0x5e/0xe0 [ 53.154850] kernfs_create_link+0x25/0x130 [ 53.159078] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 53.164273] sysfs_create_link+0x43/0xb0 [ 53.168331] netdev_adjacent_sysfs_add+0x94/0xb0 [ 53.173068] ? napi_disable+0x80/0x80 [ 53.177822] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 53.183008] __netdev_upper_dev_link+0x174/0x1f0 [ 53.187753] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 53.192504] netdev_master_upper_dev_link+0x14/0x20 [ 53.197516] batadv_hardif_enable_interface+0x1af/0x990 [ 53.202870] batadv_softif_slave_add+0x82/0xe0 [ 53.207435] do_set_master+0x163/0x1f0 [ 53.211311] do_setlink+0x9dd/0x2c50 [ 53.215012] ? trace_hardirqs_on+0x10/0x10 [ 53.219268] ? find_held_lock+0x36/0x1d0 [ 53.223305] ? trace_hardirqs_off+0x10/0x10 [ 53.227608] ? rtnl_register+0x20/0x20 [ 53.231489] ? find_held_lock+0x36/0x1d0 [ 53.235578] ? is_bpf_text_address+0x60/0xe0 [ 53.240010] ? lock_downgrade+0x7f0/0x7f0 [ 53.244152] ? __lock_acquire+0x6a4/0x4500 [ 53.248372] ? __lock_acquire+0x6a4/0x4500 [ 53.252620] ? __kernel_text_address+0xd/0x40 [ 53.257106] ? unwind_get_return_address+0x61/0xa0 [ 53.262020] ? __save_stack_trace+0x7e/0xd0 [ 53.266327] rtnl_newlink+0xe0c/0x1390 [ 53.270199] ? save_stack_trace+0x16/0x20 [ 53.274334] ? save_stack+0x43/0xd0 [ 53.278064] ? rtnl_link_unregister+0x270/0x270 [ 53.282711] ? avc_has_perm_noaudit+0x236/0x400 [ 53.287358] ? lock_downgrade+0x7f0/0x7f0 [ 53.291533] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 53.295926] ? lock_acquire+0x173/0x400 [ 53.299889] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 53.304379] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 53.308785] rtnetlink_rcv_msg+0x34f/0x9d0 [ 53.313008] ? rtnl_bridge_getlink+0x760/0x760 [ 53.317581] ? find_held_lock+0x36/0x1d0 [ 53.321641] netlink_rcv_skb+0x133/0x370 [ 53.325705] ? rtnl_bridge_getlink+0x760/0x760 [ 53.330269] ? netlink_ack+0xa00/0xa00 [ 53.334135] ? netlink_deliver_tap+0x8e/0x920 [ 53.338619] rtnetlink_rcv+0x10/0x20 [ 53.342316] netlink_unicast+0x40d/0x5f0 [ 53.346360] ? netlink_attachskb+0x6e0/0x6e0 [ 53.350834] netlink_sendmsg+0x730/0xbd0 [ 53.354894] ? netlink_unicast+0x5f0/0x5f0 [ 53.359128] ? selinux_socket_sendmsg+0x31/0x40 [ 53.363782] ? security_socket_sendmsg+0x6a/0xa0 [ 53.368611] ? netlink_unicast+0x5f0/0x5f0 [ 53.372828] sock_sendmsg+0xb5/0xf0 [ 53.376440] ___sys_sendmsg+0x625/0x920 [ 53.380409] ? trace_hardirqs_off+0x10/0x10 [ 53.384719] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 53.389458] ? find_held_lock+0x36/0x1d0 [ 53.393500] ? lock_downgrade+0x7f0/0x7f0 [ 53.397629] ? __fget+0x1ca/0x2f0 [ 53.401593] ? __fget_light+0x166/0x200 [ 53.405548] ? __fdget+0xe/0x10 [ 53.408821] ? sockfd_lookup_light+0x1c/0x150 [ 53.413294] __sys_sendmsg+0xc1/0x140 [ 53.417078] ? SyS_shutdown+0x180/0x180 [ 53.421044] ? __sb_end_write+0xa4/0xd0 [ 53.425094] ? mutex_unlock+0xd/0x10 [ 53.428796] ? do_syscall_64+0x4c/0x5b0 [ 53.432755] ? __sys_sendmsg+0x140/0x140 [ 53.436798] SyS_sendmsg+0xd/0x20 [ 53.440234] do_syscall_64+0x1c7/0x5b0 [ 53.444097] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.448917] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 53.454087] RIP: 0033:0x459ef9 [ 53.457260] RSP: 002b:00007f168d5e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 53.464955] RAX: ffffffffffffffda RBX: 00007f168d5e9c90 RCX: 0000000000459ef9 [ 53.472209] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 53.479477] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 53.486748] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f168d5ea6d4 [ 53.494006] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 53.506341] FAULT_INJECTION: forcing a failure. [ 53.506341] name failslab, interval 1, probability 0, space 0, times 0 [ 53.565280] CPU: 0 PID: 7006 Comm: syz-executor.5 Not tainted 4.14.173-syzkaller #0 [ 53.573110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.582462] Call Trace: [ 53.585055] dump_stack+0xf7/0x13b [ 53.588607] should_fail.cold.3+0x105/0x14b [ 53.592930] should_failslab+0xba/0xf0 [ 53.596823] kmem_cache_alloc+0x2cf/0x790 [ 53.601073] ? memcpy+0x45/0x50 [ 53.604335] ? kstrdup+0x42/0x60 [ 53.607700] __kernfs_new_node+0x63/0x470 [ 53.611834] ? lock_downgrade+0x7f0/0x7f0 [ 53.615974] kernfs_new_node+0x5e/0xe0 [ 53.619846] kernfs_create_link+0x25/0x130 [ 53.624069] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 53.629253] sysfs_create_link+0x43/0xb0 [ 53.633296] netdev_adjacent_sysfs_add+0x94/0xb0 [ 53.638377] ? napi_disable+0x80/0x80 [ 53.642173] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 53.647364] __netdev_upper_dev_link+0x174/0x1f0 [ 53.652269] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 53.657078] netdev_master_upper_dev_link+0x14/0x20 [ 53.662258] batadv_hardif_enable_interface+0x1af/0x990 [ 53.667624] batadv_softif_slave_add+0x82/0xe0 [ 53.672275] do_set_master+0x163/0x1f0 [ 53.676260] do_setlink+0x9dd/0x2c50 [ 53.679978] ? find_held_lock+0x36/0x1d0 [ 53.684040] ? rtnl_register+0x20/0x20 [ 53.687912] ? load_balance+0xb38/0x2190 [ 53.691985] ? lock_downgrade+0x7f0/0x7f0 [ 53.696132] ? lock_pin_lock+0x340/0x340 [ 53.700179] ? __lock_acquire+0x6a4/0x4500 [ 53.704396] ? trace_hardirqs_off+0x10/0x10 [ 53.708707] ? __lock_is_held+0xb5/0x140 [ 53.712766] ? trace_hardirqs_off+0x10/0x10 [ 53.717080] rtnl_newlink+0xe0c/0x1390 [ 53.720969] ? rtnl_link_unregister+0x270/0x270 [ 53.725621] ? finish_task_switch+0x178/0x650 [ 53.730113] ? finish_task_switch+0x14d/0x650 [ 53.734589] ? find_held_lock+0x36/0x1d0 [ 53.739863] ? __mutex_lock+0x8b7/0x14c0 [ 53.743925] ? lock_downgrade+0x7f0/0x7f0 [ 53.748067] ? do_raw_spin_unlock+0x16a/0x250 [ 53.752587] rtnetlink_rcv_msg+0x34f/0x9d0 [ 53.756883] ? rtnl_bridge_getlink+0x760/0x760 [ 53.761459] ? find_held_lock+0x36/0x1d0 [ 53.765503] netlink_rcv_skb+0x133/0x370 [ 53.769672] ? rtnl_bridge_getlink+0x760/0x760 [ 53.774248] ? netlink_ack+0xa00/0xa00 [ 53.778126] ? netlink_deliver_tap+0x8e/0x920 [ 53.782605] rtnetlink_rcv+0x10/0x20 [ 53.786298] netlink_unicast+0x40d/0x5f0 [ 53.790347] ? netlink_attachskb+0x6e0/0x6e0 [ 53.794738] netlink_sendmsg+0x730/0xbd0 [ 53.798796] ? netlink_unicast+0x5f0/0x5f0 [ 53.803019] ? selinux_socket_sendmsg+0x31/0x40 [ 53.807675] ? security_socket_sendmsg+0x6a/0xa0 [ 53.812408] ? netlink_unicast+0x5f0/0x5f0 [ 53.816622] sock_sendmsg+0xb5/0xf0 [ 53.820227] ___sys_sendmsg+0x625/0x920 [ 53.824182] ? trace_hardirqs_off+0x10/0x10 [ 53.828486] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 53.833234] ? find_held_lock+0x36/0x1d0 [ 53.837284] ? lock_downgrade+0x7f0/0x7f0 [ 53.841418] ? __fget+0x1ca/0x2f0 [ 53.844873] ? __fget_light+0x166/0x200 [ 53.848839] ? __fdget+0xe/0x10 [ 53.852103] ? sockfd_lookup_light+0x1c/0x150 [ 53.856590] __sys_sendmsg+0xc1/0x140 [ 53.860375] ? SyS_shutdown+0x180/0x180 [ 53.864335] ? __sb_end_write+0xa4/0xd0 [ 53.868287] ? mutex_unlock+0xd/0x10 [ 53.871980] ? do_syscall_64+0x4c/0x5b0 [ 53.875943] ? __sys_sendmsg+0x140/0x140 [ 53.879981] SyS_sendmsg+0xd/0x20 [ 53.883417] do_syscall_64+0x1c7/0x5b0 [ 53.887291] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.892128] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 53.897299] RIP: 0033:0x459ef9 [ 53.900471] RSP: 002b:00007f5fa9badc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 53.908164] RAX: ffffffffffffffda RBX: 00007f5fa9badc90 RCX: 0000000000459ef9 [ 53.915425] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 53.922674] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 53.930063] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fa9bae6d4 [ 53.937319] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 54.057031] FAULT_INJECTION: forcing a failure. [ 54.057031] name failslab, interval 1, probability 0, space 0, times 0 [ 54.093788] CPU: 0 PID: 7042 Comm: syz-executor.0 Not tainted 4.14.173-syzkaller #0 [ 54.101614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.110971] Call Trace: [ 54.113550] dump_stack+0xf7/0x13b [ 54.117088] should_fail.cold.3+0x105/0x14b [ 54.121399] should_failslab+0xba/0xf0 [ 54.125283] kmem_cache_alloc+0x2cf/0x790 [ 54.129410] ? memcpy+0x45/0x50 [ 54.132678] ? kstrdup+0x42/0x60 [ 54.136034] __kernfs_new_node+0x63/0x470 [ 54.140170] ? lock_downgrade+0x7f0/0x7f0 [ 54.144364] kernfs_new_node+0x5e/0xe0 [ 54.148231] kernfs_create_link+0x25/0x130 [ 54.152453] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 54.157630] sysfs_create_link+0x43/0xb0 [ 54.161670] netdev_adjacent_sysfs_add+0x94/0xb0 [ 54.166408] ? napi_disable+0x80/0x80 [ 54.170207] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 54.175392] __netdev_upper_dev_link+0x174/0x1f0 [ 54.180255] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 54.185015] netdev_master_upper_dev_link+0x14/0x20 [ 54.190020] batadv_hardif_enable_interface+0x1af/0x990 [ 54.195378] batadv_softif_slave_add+0x82/0xe0 [ 54.199961] do_set_master+0x163/0x1f0 [ 54.203841] do_setlink+0x9dd/0x2c50 [ 54.207566] ? trace_hardirqs_on+0x10/0x10 [ 54.211806] ? find_held_lock+0x36/0x1d0 [ 54.215858] ? trace_hardirqs_off+0x10/0x10 [ 54.220180] ? rtnl_register+0x20/0x20 [ 54.224096] ? find_held_lock+0x36/0x1d0 [ 54.228143] ? is_bpf_text_address+0x60/0xe0 [ 54.232539] ? lock_downgrade+0x7f0/0x7f0 [ 54.236680] ? __lock_acquire+0x6a4/0x4500 [ 54.240903] ? __lock_acquire+0x6a4/0x4500 [ 54.245128] ? __kernel_text_address+0xd/0x40 [ 54.249601] ? unwind_get_return_address+0x61/0xa0 [ 54.254511] ? __save_stack_trace+0x7e/0xd0 [ 54.258818] rtnl_newlink+0xe0c/0x1390 [ 54.262686] ? save_stack_trace+0x16/0x20 [ 54.266816] ? save_stack+0x43/0xd0 [ 54.270447] ? rtnl_link_unregister+0x270/0x270 [ 54.275102] ? avc_has_perm_noaudit+0x236/0x400 [ 54.279763] ? lock_downgrade+0x7f0/0x7f0 [ 54.283910] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 54.288301] ? lock_acquire+0x173/0x400 [ 54.292262] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 54.296655] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 54.301078] rtnetlink_rcv_msg+0x34f/0x9d0 [ 54.305301] ? rtnl_bridge_getlink+0x760/0x760 [ 54.309863] ? find_held_lock+0x36/0x1d0 [ 54.313911] netlink_rcv_skb+0x133/0x370 [ 54.317956] ? rtnl_bridge_getlink+0x760/0x760 [ 54.322527] ? netlink_ack+0xa00/0xa00 [ 54.326409] ? netlink_deliver_tap+0x8e/0x920 [ 54.330909] rtnetlink_rcv+0x10/0x20 [ 54.334623] netlink_unicast+0x40d/0x5f0 [ 54.338676] ? netlink_attachskb+0x6e0/0x6e0 [ 54.343092] netlink_sendmsg+0x730/0xbd0 [ 54.347206] ? netlink_unicast+0x5f0/0x5f0 [ 54.351427] ? selinux_socket_sendmsg+0x31/0x40 [ 54.356084] ? security_socket_sendmsg+0x6a/0xa0 [ 54.360824] ? netlink_unicast+0x5f0/0x5f0 [ 54.365050] sock_sendmsg+0xb5/0xf0 [ 54.368661] ___sys_sendmsg+0x625/0x920 [ 54.372631] ? trace_hardirqs_off+0x10/0x10 [ 54.376940] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 54.381678] ? find_held_lock+0x36/0x1d0 [ 54.385802] ? lock_downgrade+0x7f0/0x7f0 [ 54.389936] ? __fget+0x1ca/0x2f0 [ 54.393439] ? __fget_light+0x166/0x200 [ 54.397408] ? __fdget+0xe/0x10 [ 54.400692] ? sockfd_lookup_light+0x1c/0x150 [ 54.405185] __sys_sendmsg+0xc1/0x140 [ 54.408979] ? SyS_shutdown+0x180/0x180 [ 54.412950] ? __sb_end_write+0xa4/0xd0 [ 54.416926] ? mutex_unlock+0xd/0x10 [ 54.420632] ? do_syscall_64+0x4c/0x5b0 [ 54.424617] ? __sys_sendmsg+0x140/0x140 [ 54.428669] SyS_sendmsg+0xd/0x20 [ 54.432133] do_syscall_64+0x1c7/0x5b0 [ 54.436007] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.440847] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 54.446382] RIP: 0033:0x459ef9 [ 54.449553] RSP: 002b:00007f666a648c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.457242] RAX: ffffffffffffffda RBX: 00007f666a648c90 RCX: 0000000000459ef9 [ 54.464511] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 54.471777] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 54.479046] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f666a6496d4 [ 54.486297] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 54.498511] FAULT_INJECTION: forcing a failure. 2020/03/12 23:44:34 executed programs: 39 [ 54.498511] name failslab, interval 1, probability 0, space 0, times 0 [ 54.519745] CPU: 1 PID: 7046 Comm: syz-executor.4 Not tainted 4.14.173-syzkaller #0 [ 54.527682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.537222] Call Trace: [ 54.539824] dump_stack+0xf7/0x13b [ 54.543378] should_fail.cold.3+0x105/0x14b [ 54.547708] should_failslab+0xba/0xf0 [ 54.551610] kmem_cache_alloc_node+0x287/0x790 [ 54.556180] __alloc_skb+0x92/0x500 [ 54.559805] ? skb_trim+0x160/0x160 [ 54.563426] ? if_nlmsg_size+0x2d9/0x6f0 [ 54.567506] rtmsg_ifinfo_build_skb+0x68/0x120 [ 54.572076] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 54.576907] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 54.581874] rtnetlink_event+0xc2/0x110 [ 54.585835] notifier_call_chain+0xd6/0x150 [ 54.590147] raw_notifier_call_chain+0x11/0x20 [ 54.594821] call_netdevice_notifiers_info+0x4b/0x60 [ 54.599922] __netdev_upper_dev_link+0x18e/0x1f0 [ 54.604683] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 54.609449] netdev_master_upper_dev_link+0x14/0x20 [ 54.614484] batadv_hardif_enable_interface+0x1af/0x990 [ 54.619839] batadv_softif_slave_add+0x82/0xe0 [ 54.624411] do_set_master+0x163/0x1f0 [ 54.628286] do_setlink+0x9dd/0x2c50 [ 54.631989] ? __lock_acquire+0x6a4/0x4500 [ 54.636204] ? trace_hardirqs_off+0x10/0x10 [ 54.640520] ? rtnl_register+0x20/0x20 [ 54.644400] ? trace_hardirqs_on+0x10/0x10 [ 54.648675] ? trace_hardirqs_off+0x10/0x10 [ 54.652979] ? __lock_acquire+0x6a4/0x4500 [ 54.657194] ? trace_hardirqs_off+0x10/0x10 [ 54.661507] ? __lock_is_held+0xb5/0x140 [ 54.665559] ? trace_hardirqs_off+0x10/0x10 [ 54.669879] rtnl_newlink+0xe0c/0x1390 [ 54.673753] ? rtnl_link_unregister+0x270/0x270 [ 54.678413] ? finish_task_switch+0x178/0x650 [ 54.682890] ? finish_task_switch+0x14d/0x650 [ 54.687366] ? find_held_lock+0x36/0x1d0 [ 54.691411] ? __mutex_lock+0x8b7/0x14c0 [ 54.695465] ? lock_downgrade+0x7f0/0x7f0 [ 54.699615] ? do_raw_spin_unlock+0x16a/0x250 [ 54.704105] rtnetlink_rcv_msg+0x34f/0x9d0 [ 54.708320] ? rtnl_bridge_getlink+0x760/0x760 [ 54.712882] ? find_held_lock+0x36/0x1d0 [ 54.716944] netlink_rcv_skb+0x133/0x370 [ 54.721004] ? rtnl_bridge_getlink+0x760/0x760 [ 54.725567] ? netlink_ack+0xa00/0xa00 [ 54.729434] ? netlink_deliver_tap+0x8e/0x920 [ 54.733929] rtnetlink_rcv+0x10/0x20 [ 54.737638] netlink_unicast+0x40d/0x5f0 [ 54.741684] ? netlink_attachskb+0x6e0/0x6e0 [ 54.746070] netlink_sendmsg+0x730/0xbd0 [ 54.750113] ? netlink_unicast+0x5f0/0x5f0 [ 54.754329] ? selinux_socket_sendmsg+0x31/0x40 [ 54.758976] ? security_socket_sendmsg+0x6a/0xa0 [ 54.764044] ? netlink_unicast+0x5f0/0x5f0 [ 54.768259] sock_sendmsg+0xb5/0xf0 [ 54.771866] ___sys_sendmsg+0x625/0x920 [ 54.775829] ? trace_hardirqs_off+0x10/0x10 [ 54.780197] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 54.784944] ? find_held_lock+0x36/0x1d0 [ 54.789030] ? lock_downgrade+0x7f0/0x7f0 [ 54.793168] ? __fget+0x1ca/0x2f0 [ 54.796606] ? __fget_light+0x166/0x200 [ 54.800576] ? __fdget+0xe/0x10 [ 54.803836] ? sockfd_lookup_light+0x1c/0x150 [ 54.808315] __sys_sendmsg+0xc1/0x140 [ 54.812112] ? SyS_shutdown+0x180/0x180 [ 54.816143] ? __sb_end_write+0xa4/0xd0 [ 54.820107] ? mutex_unlock+0xd/0x10 [ 54.823808] ? do_syscall_64+0x4c/0x5b0 [ 54.827864] ? __sys_sendmsg+0x140/0x140 [ 54.831912] SyS_sendmsg+0xd/0x20 [ 54.835352] do_syscall_64+0x1c7/0x5b0 [ 54.839228] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.844060] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 54.849236] RIP: 0033:0x459ef9 [ 54.852417] RSP: 002b:00007fd91524ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.860104] RAX: ffffffffffffffda RBX: 00007fd91524ec90 RCX: 0000000000459ef9 [ 54.867359] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 54.874615] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 54.881882] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91524f6d4 [ 54.889130] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 54.905638] batman_adv: batadv0: Adding interface: ip6gretap0 [ 54.911646] batman_adv: batadv0: The MTU of interface ip6gretap0 is too small (1434) 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. [ 54.936774] batman_adv: batadv0: Interface activated: ip6gretap0 [ 54.945966] FAULT_INJECTION: forcing a failure. [ 54.945966] name failslab, interval 1, probability 0, space 0, times 0 [ 54.959326] CPU: 1 PID: 7051 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0 [ 54.967136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.976499] Call Trace: [ 54.979085] dump_stack+0xf7/0x13b [ 54.982626] should_fail.cold.3+0x105/0x14b [ 54.986951] should_failslab+0xba/0xf0 [ 54.990836] kmem_cache_alloc_node+0x287/0x790 [ 54.995444] __alloc_skb+0x92/0x500 [ 54.999066] ? skb_trim+0x160/0x160 [ 55.002692] ? if_nlmsg_size+0x2d9/0x6f0 [ 55.006766] rtmsg_ifinfo_build_skb+0x68/0x120 [ 55.011429] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 55.016249] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 55.021163] rtnetlink_event+0xc2/0x110 [ 55.025127] notifier_call_chain+0xd6/0x150 [ 55.029515] raw_notifier_call_chain+0x11/0x20 [ 55.035035] call_netdevice_notifiers_info+0x4b/0x60 [ 55.040146] __netdev_upper_dev_link+0x18e/0x1f0 [ 55.045028] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 55.049870] netdev_master_upper_dev_link+0x14/0x20 [ 55.054980] batadv_hardif_enable_interface+0x1af/0x990 [ 55.060344] batadv_softif_slave_add+0x82/0xe0 [ 55.064924] do_set_master+0x163/0x1f0 [ 55.068795] do_setlink+0x9dd/0x2c50 [ 55.072503] ? rtnl_register+0x20/0x20 [ 55.076373] ? trace_hardirqs_on+0x10/0x10 [ 55.080603] ? trace_hardirqs_off+0x10/0x10 [ 55.084904] ? find_held_lock+0x36/0x1d0 [ 55.088971] ? find_held_lock+0x36/0x1d0 [ 55.093033] ? free_one_page+0x9c4/0x1050 [ 55.097167] ? lock_downgrade+0x7f0/0x7f0 [ 55.101298] ? __this_cpu_preempt_check+0x13/0x20 [ 55.106120] ? do_raw_spin_unlock+0x16a/0x250 [ 55.110609] rtnl_newlink+0xe0c/0x1390 [ 55.114499] ? rtnl_link_unregister+0x270/0x270 [ 55.119220] ? finish_task_switch+0x448/0x650 [ 55.123714] ? find_held_lock+0x36/0x1d0 [ 55.127763] ? __mutex_lock+0x8b7/0x14c0 [ 55.131815] ? lock_downgrade+0x7f0/0x7f0 [ 55.135987] ? do_raw_spin_unlock+0x16a/0x250 [ 55.140497] rtnetlink_rcv_msg+0x34f/0x9d0 [ 55.144727] ? rtnl_bridge_getlink+0x760/0x760 [ 55.149294] ? find_held_lock+0x36/0x1d0 [ 55.153346] netlink_rcv_skb+0x133/0x370 [ 55.157397] ? rtnl_bridge_getlink+0x760/0x760 [ 55.161966] ? netlink_ack+0xa00/0xa00 [ 55.165846] ? netlink_deliver_tap+0x8e/0x920 [ 55.170323] rtnetlink_rcv+0x10/0x20 [ 55.174023] netlink_unicast+0x40d/0x5f0 [ 55.178070] ? netlink_attachskb+0x6e0/0x6e0 [ 55.182460] netlink_sendmsg+0x730/0xbd0 [ 55.186502] ? netlink_unicast+0x5f0/0x5f0 [ 55.190713] ? selinux_socket_sendmsg+0x31/0x40 [ 55.195369] ? security_socket_sendmsg+0x6a/0xa0 [ 55.200110] ? netlink_unicast+0x5f0/0x5f0 [ 55.204323] sock_sendmsg+0xb5/0xf0 [ 55.207928] ___sys_sendmsg+0x625/0x920 [ 55.211884] ? trace_hardirqs_off+0x10/0x10 [ 55.216187] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 55.220926] ? find_held_lock+0x36/0x1d0 [ 55.224975] ? lock_downgrade+0x7f0/0x7f0 [ 55.229110] ? __fget+0x1ca/0x2f0 [ 55.232558] ? __fget_light+0x166/0x200 [ 55.236515] ? __fdget+0xe/0x10 [ 55.239776] ? sockfd_lookup_light+0x1c/0x150 [ 55.244260] __sys_sendmsg+0xc1/0x140 [ 55.248038] ? SyS_shutdown+0x180/0x180 [ 55.251990] ? __sb_end_write+0xa4/0xd0 [ 55.255943] ? mutex_unlock+0xd/0x10 [ 55.259651] ? do_syscall_64+0x4c/0x5b0 [ 55.263606] ? __sys_sendmsg+0x140/0x140 [ 55.267662] SyS_sendmsg+0xd/0x20 [ 55.271099] do_syscall_64+0x1c7/0x5b0 [ 55.274970] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.279802] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 55.284979] RIP: 0033:0x459ef9 [ 55.288149] RSP: 002b:00007f2d8618bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 55.296082] RAX: ffffffffffffffda RBX: 00007f2d8618bc90 RCX: 0000000000459ef9 [ 55.303333] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 55.310588] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 55.317836] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d8618c6d4 [ 55.325091] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 55.339245] batman_adv: batadv0: Adding interface: ip6gretap0 [ 55.345258] batman_adv: batadv0: The MTU of interface ip6gretap0 is too small (1434) 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. [ 55.370928] batman_adv: batadv0: Interface activated: ip6gretap0 [ 55.377694] FAULT_INJECTION: forcing a failure. [ 55.377694] name failslab, interval 1, probability 0, space 0, times 0 [ 55.397580] CPU: 0 PID: 7054 Comm: syz-executor.2 Not tainted 4.14.173-syzkaller #0 [ 55.405407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.414926] Call Trace: [ 55.417504] dump_stack+0xf7/0x13b [ 55.421040] should_fail.cold.3+0x105/0x14b [ 55.425359] should_failslab+0xba/0xf0 [ 55.429248] kmem_cache_alloc_node+0x287/0x790 [ 55.433907] __alloc_skb+0x92/0x500 [ 55.437541] ? skb_trim+0x160/0x160 [ 55.441168] ? if_nlmsg_size+0x2d9/0x6f0 [ 55.445215] rtmsg_ifinfo_build_skb+0x68/0x120 [ 55.449782] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 55.454601] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 55.459650] rtnetlink_event+0xc2/0x110 [ 55.463614] notifier_call_chain+0xd6/0x150 [ 55.467930] raw_notifier_call_chain+0x11/0x20 [ 55.472515] call_netdevice_notifiers_info+0x4b/0x60 [ 55.477608] __netdev_upper_dev_link+0x18e/0x1f0 [ 55.482345] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 55.487318] netdev_master_upper_dev_link+0x14/0x20 [ 55.492331] batadv_hardif_enable_interface+0x1af/0x990 [ 55.497694] batadv_softif_slave_add+0x82/0xe0 [ 55.502266] do_set_master+0x163/0x1f0 [ 55.506172] do_setlink+0x9dd/0x2c50 [ 55.509880] ? __lock_acquire+0x6a4/0x4500 [ 55.514112] ? trace_hardirqs_off+0x10/0x10 [ 55.518436] ? rtnl_register+0x20/0x20 [ 55.522308] ? trace_hardirqs_on+0x10/0x10 [ 55.527303] ? trace_hardirqs_off+0x10/0x10 [ 55.531614] ? __lock_acquire+0x6a4/0x4500 [ 55.535832] ? trace_hardirqs_off+0x10/0x10 [ 55.540309] ? trace_hardirqs_off+0x10/0x10 [ 55.544625] ? __lock_is_held+0xb5/0x140 [ 55.548678] ? trace_hardirqs_off+0x10/0x10 [ 55.553001] rtnl_newlink+0xe0c/0x1390 [ 55.556889] ? rtnl_link_unregister+0x270/0x270 [ 55.561547] ? finish_task_switch+0x178/0x650 [ 55.566021] ? finish_task_switch+0x14d/0x650 [ 55.570514] ? find_held_lock+0x36/0x1d0 [ 55.574574] ? __mutex_lock+0x8b7/0x14c0 [ 55.578723] ? lock_downgrade+0x7f0/0x7f0 [ 55.582867] ? do_raw_spin_unlock+0x16a/0x250 [ 55.587358] rtnetlink_rcv_msg+0x34f/0x9d0 [ 55.591586] ? rtnl_bridge_getlink+0x760/0x760 [ 55.596164] ? find_held_lock+0x36/0x1d0 [ 55.600224] netlink_rcv_skb+0x133/0x370 [ 55.604284] ? rtnl_bridge_getlink+0x760/0x760 [ 55.609028] ? netlink_ack+0xa00/0xa00 [ 55.612917] ? netlink_deliver_tap+0x8e/0x920 [ 55.617400] rtnetlink_rcv+0x10/0x20 [ 55.621106] netlink_unicast+0x40d/0x5f0 [ 55.625144] ? netlink_attachskb+0x6e0/0x6e0 [ 55.629535] netlink_sendmsg+0x730/0xbd0 [ 55.633577] ? netlink_unicast+0x5f0/0x5f0 [ 55.637788] ? selinux_socket_sendmsg+0x31/0x40 [ 55.642437] ? security_socket_sendmsg+0x6a/0xa0 [ 55.647208] ? netlink_unicast+0x5f0/0x5f0 [ 55.651436] sock_sendmsg+0xb5/0xf0 [ 55.655046] ___sys_sendmsg+0x625/0x920 [ 55.659009] ? trace_hardirqs_off+0x10/0x10 [ 55.663340] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 55.668116] ? find_held_lock+0x36/0x1d0 [ 55.672191] ? lock_downgrade+0x7f0/0x7f0 [ 55.676330] ? __fget+0x1ca/0x2f0 [ 55.679867] ? __fget_light+0x166/0x200 [ 55.683835] ? __fdget+0xe/0x10 [ 55.687251] ? sockfd_lookup_light+0x1c/0x150 [ 55.691742] __sys_sendmsg+0xc1/0x140 [ 55.695670] ? SyS_shutdown+0x180/0x180 [ 55.699631] ? __sb_end_write+0xa4/0xd0 [ 55.703706] ? mutex_unlock+0xd/0x10 [ 55.707429] ? do_syscall_64+0x4c/0x5b0 [ 55.711392] ? __sys_sendmsg+0x140/0x140 [ 55.715455] SyS_sendmsg+0xd/0x20 [ 55.718922] do_syscall_64+0x1c7/0x5b0 [ 55.722804] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.727629] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 55.732803] RIP: 0033:0x459ef9 [ 55.735983] RSP: 002b:00007fa8a10f3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 55.743680] RAX: ffffffffffffffda RBX: 00007fa8a10f3c90 RCX: 0000000000459ef9 [ 55.750935] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 55.758198] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 55.765453] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8a10f46d4 [ 55.775573] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 55.785294] NOHZ: local_softirq_pending 08 [ 55.785968] batman_adv: batadv0: Adding interface: ip6gretap0 [ 55.795802] batman_adv: batadv0: The MTU of interface ip6gretap0 is too small (1434) 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. [ 55.821310] batman_adv: batadv0: Interface activated: ip6gretap0 [ 55.827863] device bridge_slave_0 left promiscuous mode [ 55.834051] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.840442] FAULT_INJECTION: forcing a failure. [ 55.840442] name failslab, interval 1, probability 0, space 0, times 0 [ 55.851656] CPU: 1 PID: 7057 Comm: syz-executor.0 Not tainted 4.14.173-syzkaller #0 [ 55.859446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.868795] Call Trace: [ 55.871379] dump_stack+0xf7/0x13b [ 55.874927] should_fail.cold.3+0x105/0x14b [ 55.879237] should_failslab+0xba/0xf0 [ 55.883126] kmem_cache_alloc_node+0x56/0x790 [ 55.887622] ? br_get_link_af_size_filtered+0xb5/0x6e0 [ 55.892894] __alloc_skb+0x92/0x500 [ 55.896502] ? skb_trim+0x160/0x160 [ 55.900111] ? br_get_link_af_size_filtered+0xd2/0x6e0 [ 55.905399] br_ifinfo_notify.part.21+0x89/0x160 [ 55.910171] br_ifinfo_notify+0xe/0x20 [ 55.914042] br_stp_disable_port+0xbb/0x150 [ 55.918357] del_nbp+0x119/0x8b0 [ 55.921710] br_del_if+0xc7/0x470 [ 55.925141] br_del_slave+0x10/0x20 [ 55.928749] do_set_master+0xb6/0x1f0 [ 55.932541] do_setlink+0x9dd/0x2c50 [ 55.936248] ? rtnl_register+0x20/0x20 [ 55.940135] ? trace_hardirqs_off+0x10/0x10 [ 55.944438] ? __lock_acquire+0x6a4/0x4500 [ 55.948654] ? trace_hardirqs_off+0x10/0x10 [ 55.952959] ? trace_hardirqs_on+0x10/0x10 [ 55.957179] ? trace_hardirqs_off+0x10/0x10 [ 55.961923] ? __lock_acquire+0x6a4/0x4500 [ 55.966144] ? trace_hardirqs_off+0x10/0x10 [ 55.970524] ? __lock_is_held+0xb5/0x140 [ 55.974584] rtnl_newlink+0xe0c/0x1390 [ 55.978458] ? trace_hardirqs_off+0x10/0x10 [ 55.982953] ? memset+0x31/0x40 [ 55.986226] ? rtnl_newlink+0x6d0/0x1390 [ 55.990271] ? rtnl_link_unregister+0x270/0x270 [ 55.995030] ? finish_task_switch+0x178/0x650 [ 55.999564] ? finish_task_switch+0x14d/0x650 [ 56.004047] ? find_held_lock+0x36/0x1d0 [ 56.008123] ? __mutex_lock+0x8b7/0x14c0 [ 56.012171] ? lock_downgrade+0x7f0/0x7f0 [ 56.016312] ? do_raw_spin_unlock+0x16a/0x250 [ 56.020813] rtnetlink_rcv_msg+0x34f/0x9d0 [ 56.025052] ? rtnl_bridge_getlink+0x760/0x760 [ 56.029636] ? find_held_lock+0x36/0x1d0 [ 56.033696] netlink_rcv_skb+0x133/0x370 [ 56.037744] ? rtnl_bridge_getlink+0x760/0x760 [ 56.042374] ? netlink_ack+0xa00/0xa00 [ 56.046247] ? netlink_deliver_tap+0x8e/0x920 [ 56.050736] rtnetlink_rcv+0x10/0x20 [ 56.054442] netlink_unicast+0x40d/0x5f0 [ 56.058502] ? netlink_attachskb+0x6e0/0x6e0 [ 56.062933] netlink_sendmsg+0x730/0xbd0 [ 56.066980] ? netlink_unicast+0x5f0/0x5f0 [ 56.071196] ? selinux_socket_sendmsg+0x31/0x40 [ 56.075883] ? security_socket_sendmsg+0x6a/0xa0 [ 56.080629] ? netlink_unicast+0x5f0/0x5f0 [ 56.084856] sock_sendmsg+0xb5/0xf0 [ 56.088462] ___sys_sendmsg+0x625/0x920 [ 56.092433] ? trace_hardirqs_off+0x10/0x10 [ 56.096734] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 56.101494] ? find_held_lock+0x36/0x1d0 [ 56.105546] ? lock_downgrade+0x7f0/0x7f0 [ 56.109681] ? __fget+0x1ca/0x2f0 [ 56.113130] ? __fget_light+0x166/0x200 [ 56.117089] ? __fdget+0xe/0x10 [ 56.120349] ? sockfd_lookup_light+0x1c/0x150 [ 56.124857] __sys_sendmsg+0xc1/0x140 [ 56.128726] ? SyS_shutdown+0x180/0x180 [ 56.132680] ? __sb_end_write+0xa4/0xd0 [ 56.136659] ? mutex_unlock+0xd/0x10 [ 56.140369] ? do_syscall_64+0x4c/0x5b0 [ 56.144322] ? __sys_sendmsg+0x140/0x140 [ 56.148360] SyS_sendmsg+0xd/0x20 [ 56.151794] do_syscall_64+0x1c7/0x5b0 [ 56.155671] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.160504] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 56.165675] RIP: 0033:0x459ef9 [ 56.168858] RSP: 002b:00007f666a648c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 56.176553] RAX: ffffffffffffffda RBX: 00007f666a648c90 RCX: 0000000000459ef9 [ 56.183805] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 56.191059] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 56.198309] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f666a6496d4 [ 56.205568] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 56.245264] batman_adv: batadv0: Adding interface: bridge_slave_0 [ 56.251631] batman_adv: batadv0: The MTU of interface bridge_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. [ 56.277068] batman_adv: batadv0: Interface activated: bridge_slave_0 [ 56.285428] FAULT_INJECTION: forcing a failure. [ 56.285428] name failslab, interval 1, probability 0, space 0, times 0 [ 56.306527] CPU: 0 PID: 7067 Comm: syz-executor.1 Not tainted 4.14.173-syzkaller #0 [ 56.316433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.325790] Call Trace: [ 56.328390] dump_stack+0xf7/0x13b [ 56.331935] should_fail.cold.3+0x105/0x14b [ 56.336254] should_failslab+0xba/0xf0 [ 56.340127] kmem_cache_alloc_node+0x287/0x790 [ 56.344707] __alloc_skb+0x92/0x500 [ 56.348344] ? skb_trim+0x160/0x160 [ 56.351970] ? if_nlmsg_size+0x2d9/0x6f0 [ 56.356024] rtmsg_ifinfo_build_skb+0x68/0x120 [ 56.360727] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 56.365561] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 56.370662] rtnetlink_event+0xc2/0x110 [ 56.374633] notifier_call_chain+0xd6/0x150 [ 56.378949] raw_notifier_call_chain+0x11/0x20 [ 56.383527] call_netdevice_notifiers_info+0x4b/0x60 [ 56.388621] __netdev_upper_dev_link+0x18e/0x1f0 [ 56.393372] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 56.398235] netdev_master_upper_dev_link+0x14/0x20 [ 56.403247] batadv_hardif_enable_interface+0x1af/0x990 [ 56.408600] batadv_softif_slave_add+0x82/0xe0 [ 56.413174] do_set_master+0x163/0x1f0 [ 56.417044] do_setlink+0x9dd/0x2c50 [ 56.420752] ? rtnl_register+0x20/0x20 [ 56.424638] ? trace_hardirqs_on+0x10/0x10 [ 56.428879] ? trace_hardirqs_off+0x10/0x10 [ 56.433238] ? find_held_lock+0x36/0x1d0 [ 56.437281] ? find_held_lock+0x36/0x1d0 [ 56.441347] ? free_one_page+0x9c4/0x1050 [ 56.445500] ? lock_downgrade+0x7f0/0x7f0 [ 56.449644] ? __this_cpu_preempt_check+0x13/0x20 [ 56.454474] ? do_raw_spin_unlock+0x16a/0x250 [ 56.458984] rtnl_newlink+0xe0c/0x1390 [ 56.462901] ? rtnl_link_unregister+0x270/0x270 [ 56.467560] ? finish_task_switch+0x448/0x650 [ 56.472072] ? find_held_lock+0x36/0x1d0 [ 56.476124] ? __mutex_lock+0x8b7/0x14c0 [ 56.480169] ? lock_downgrade+0x7f0/0x7f0 [ 56.484312] ? do_raw_spin_unlock+0x16a/0x250 [ 56.488834] rtnetlink_rcv_msg+0x34f/0x9d0 [ 56.493064] ? rtnl_bridge_getlink+0x760/0x760 [ 56.497636] ? find_held_lock+0x36/0x1d0 [ 56.501829] netlink_rcv_skb+0x133/0x370 [ 56.506070] ? rtnl_bridge_getlink+0x760/0x760 [ 56.510657] ? netlink_ack+0xa00/0xa00 [ 56.514537] ? netlink_deliver_tap+0x8e/0x920 [ 56.519022] rtnetlink_rcv+0x10/0x20 [ 56.522723] netlink_unicast+0x40d/0x5f0 [ 56.526838] ? netlink_attachskb+0x6e0/0x6e0 [ 56.531266] netlink_sendmsg+0x730/0xbd0 [ 56.535325] ? netlink_unicast+0x5f0/0x5f0 [ 56.539657] ? selinux_socket_sendmsg+0x31/0x40 [ 56.544334] ? security_socket_sendmsg+0x6a/0xa0 [ 56.549086] ? netlink_unicast+0x5f0/0x5f0 [ 56.553378] sock_sendmsg+0xb5/0xf0 [ 56.557032] ___sys_sendmsg+0x625/0x920 [ 56.561001] ? trace_hardirqs_off+0x10/0x10 [ 56.565324] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 56.570077] ? find_held_lock+0x36/0x1d0 [ 56.574141] ? lock_downgrade+0x7f0/0x7f0 [ 56.578366] ? __fget+0x1ca/0x2f0 [ 56.581813] ? __fget_light+0x166/0x200 [ 56.585788] ? __fdget+0xe/0x10 [ 56.589072] ? sockfd_lookup_light+0x1c/0x150 [ 56.593572] __sys_sendmsg+0xc1/0x140 [ 56.597370] ? SyS_shutdown+0x180/0x180 [ 56.601343] ? __sb_end_write+0xa4/0xd0 [ 56.605317] ? mutex_unlock+0xd/0x10 [ 56.609164] ? do_syscall_64+0x4c/0x5b0 [ 56.613137] ? __sys_sendmsg+0x140/0x140 [ 56.617545] SyS_sendmsg+0xd/0x20 [ 56.620997] do_syscall_64+0x1c7/0x5b0 [ 56.624918] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.629767] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 56.634949] RIP: 0033:0x459ef9 [ 56.638129] RSP: 002b:00007f168d5e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 56.645823] RAX: ffffffffffffffda RBX: 00007f168d5e9c90 RCX: 0000000000459ef9 [ 56.653092] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 56.660456] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 56.667725] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f168d5ea6d4 [ 56.674984] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 56.683939] batman_adv: batadv0: Adding interface: ip6gretap0 [ 56.689944] batman_adv: batadv0: The MTU of interface ip6gretap0 is too small (1434) 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. [ 56.715537] batman_adv: batadv0: Interface activated: ip6gretap0 [ 56.739479] FAULT_INJECTION: forcing a failure. [ 56.739479] name failslab, interval 1, probability 0, space 0, times 0 [ 56.751002] CPU: 1 PID: 7080 Comm: syz-executor.5 Not tainted 4.14.173-syzkaller #0 [ 56.759093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.768442] Call Trace: [ 56.771044] dump_stack+0xf7/0x13b [ 56.774738] should_fail.cold.3+0x105/0x14b [ 56.779081] should_failslab+0xba/0xf0 [ 56.783077] kmem_cache_alloc+0x47/0x790 [ 56.787139] ? kasan_kmalloc+0xc7/0xe0 [ 56.791458] ? kasan_slab_alloc+0x12/0x20 [ 56.795593] ? kmem_cache_alloc+0x12e/0x790 [ 56.799898] ? __kernfs_new_node+0x63/0x470 [ 56.804217] ? kernfs_new_node+0x5e/0xe0 [ 56.808259] ? kernfs_create_link+0x25/0x130 [ 56.812658] radix_tree_node_alloc.constprop.20+0x182/0x330 [ 56.818379] ? do_setlink+0x9dd/0x2c50 [ 56.822275] ? rtnl_newlink+0xe0c/0x1390 [ 56.826322] ? rtnetlink_rcv_msg+0x34f/0x9d0 [ 56.830717] idr_get_free_cmn+0x4b2/0x9b0 [ 56.834861] idr_alloc_cmn+0xba/0x180 [ 56.838648] ? __fprop_inc_percpu_max+0x1c0/0x1c0 [ 56.843518] ? __lock_is_held+0xb5/0x140 [ 56.847578] idr_alloc_cyclic+0xdd/0x1e6 [ 56.851641] ? ida_simple_remove+0x50/0x50 [ 56.855856] ? debug_smp_processor_id+0x17/0x20 [ 56.860512] __kernfs_new_node+0x9e/0x470 [ 56.864645] ? lock_downgrade+0x7f0/0x7f0 [ 56.868795] kernfs_new_node+0x5e/0xe0 [ 56.872677] kernfs_create_link+0x25/0x130 [ 56.876894] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 56.882088] sysfs_create_link+0x43/0xb0 [ 56.886139] netdev_adjacent_sysfs_add+0x94/0xb0 [ 56.890887] ? napi_disable+0x80/0x80 [ 56.894682] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 56.899856] __netdev_upper_dev_link+0x174/0x1f0 [ 56.904595] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 56.909345] netdev_master_upper_dev_link+0x14/0x20 [ 56.914352] batadv_hardif_enable_interface+0x1af/0x990 [ 56.919697] batadv_softif_slave_add+0x82/0xe0 [ 56.924258] do_set_master+0x163/0x1f0 [ 56.928132] do_setlink+0x9dd/0x2c50 [ 56.931944] ? trace_hardirqs_on+0x10/0x10 [ 56.936156] ? find_held_lock+0x36/0x1d0 [ 56.940227] ? trace_hardirqs_off+0x10/0x10 [ 56.944548] ? rtnl_register+0x20/0x20 [ 56.948463] ? find_held_lock+0x36/0x1d0 [ 56.952527] ? __lock_acquire+0x6a4/0x4500 [ 56.956769] ? trace_hardirqs_off+0x10/0x10 [ 56.961168] ? trace_hardirqs_off+0x10/0x10 [ 56.965489] ? __lock_is_held+0xb5/0x140 [ 56.969551] ? trace_hardirqs_off+0x10/0x10 [ 56.973862] rtnl_newlink+0xe0c/0x1390 [ 56.977738] ? rtnl_link_unregister+0x270/0x270 [ 56.982392] ? finish_task_switch+0x178/0x650 [ 56.986871] ? finish_task_switch+0x14d/0x650 [ 56.991355] ? find_held_lock+0x36/0x1d0 [ 56.995405] ? __mutex_lock+0x8b7/0x14c0 [ 56.999466] ? lock_downgrade+0x7f0/0x7f0 [ 57.003607] ? do_raw_spin_unlock+0x16a/0x250 [ 57.008102] rtnetlink_rcv_msg+0x34f/0x9d0 [ 57.012324] ? rtnl_bridge_getlink+0x760/0x760 [ 57.016894] ? find_held_lock+0x36/0x1d0 [ 57.021073] netlink_rcv_skb+0x133/0x370 [ 57.025140] ? rtnl_bridge_getlink+0x760/0x760 [ 57.029707] ? netlink_ack+0xa00/0xa00 [ 57.033572] ? netlink_deliver_tap+0x8e/0x920 [ 57.038051] rtnetlink_rcv+0x10/0x20 [ 57.041856] netlink_unicast+0x40d/0x5f0 [ 57.045913] ? netlink_attachskb+0x6e0/0x6e0 [ 57.050319] netlink_sendmsg+0x730/0xbd0 [ 57.054376] ? netlink_unicast+0x5f0/0x5f0 [ 57.059239] ? selinux_socket_sendmsg+0x31/0x40 [ 57.063903] ? security_socket_sendmsg+0x6a/0xa0 [ 57.068646] ? netlink_unicast+0x5f0/0x5f0 [ 57.072888] sock_sendmsg+0xb5/0xf0 [ 57.076515] ___sys_sendmsg+0x625/0x920 [ 57.080623] ? trace_hardirqs_off+0x10/0x10 [ 57.084947] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 57.089711] ? find_held_lock+0x36/0x1d0 [ 57.093762] ? lock_downgrade+0x7f0/0x7f0 [ 57.097906] ? __fget+0x1ca/0x2f0 [ 57.101357] ? __fget_light+0x166/0x200 [ 57.105313] ? __fdget+0xe/0x10 [ 57.108590] ? sockfd_lookup_light+0x1c/0x150 [ 57.113068] __sys_sendmsg+0xc1/0x140 [ 57.116924] ? SyS_shutdown+0x180/0x180 [ 57.120912] ? __sb_end_write+0xa4/0xd0 [ 57.124903] ? mutex_unlock+0xd/0x10 [ 57.128615] ? do_syscall_64+0x4c/0x5b0 [ 57.132621] ? __sys_sendmsg+0x140/0x140 [ 57.136675] SyS_sendmsg+0xd/0x20 [ 57.140112] do_syscall_64+0x1c7/0x5b0 [ 57.144094] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.148977] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 57.154166] RIP: 0033:0x459ef9 [ 57.157346] RSP: 002b:00007f5fa9badc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 57.165054] RAX: ffffffffffffffda RBX: 00007f5fa9badc90 RCX: 0000000000459ef9 [ 57.172335] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 57.179598] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 57.186852] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fa9bae6d4 [ 57.194110] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 57.203988] batman_adv: batadv0: Adding interface: ip6gretap0 [ 57.209902] batman_adv: batadv0: The MTU of interface ip6gretap0 is too small (1434) 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. [ 57.234852] batman_adv: batadv0: Interface activated: ip6gretap0 [ 57.243994] device bridge_slave_1 left promiscuous mode [ 57.249503] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.255902] FAULT_INJECTION: forcing a failure. [ 57.255902] name failslab, interval 1, probability 0, space 0, times 0 [ 57.267137] CPU: 1 PID: 7082 Comm: syz-executor.0 Not tainted 4.14.173-syzkaller #0 [ 57.274926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.284278] Call Trace: [ 57.286867] dump_stack+0xf7/0x13b [ 57.290403] should_fail.cold.3+0x105/0x14b [ 57.294713] ? lock_downgrade+0x7f0/0x7f0 [ 57.298860] should_failslab+0xba/0xf0 [ 57.302761] kmem_cache_alloc_node_trace+0x5a/0x780 [ 57.307764] __kmalloc_node_track_caller+0x3c/0x70 [ 57.312678] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 57.317415] __alloc_skb+0xc1/0x500 [ 57.321033] ? skb_trim+0x160/0x160 [ 57.324646] ? br_get_link_af_size_filtered+0xd2/0x6e0 [ 57.329901] br_ifinfo_notify.part.21+0x89/0x160 [ 57.334645] br_ifinfo_notify+0xe/0x20 [ 57.338512] br_stp_disable_port+0xbb/0x150 [ 57.342830] del_nbp+0x119/0x8b0 [ 57.346183] br_del_if+0xc7/0x470 [ 57.349809] br_del_slave+0x10/0x20 [ 57.353425] do_set_master+0xb6/0x1f0 [ 57.357263] do_setlink+0x9dd/0x2c50 [ 57.361148] ? rtnl_register+0x20/0x20 [ 57.365030] ? __lock_acquire+0x6a4/0x4500 [ 57.369268] ? __lock_acquire+0x6a4/0x4500 [ 57.373489] ? __lock_acquire+0x6a4/0x4500 [ 57.377707] ? trace_hardirqs_on+0x10/0x10 [ 57.381934] ? trace_hardirqs_off+0x10/0x10 [ 57.386239] ? __lock_acquire+0x6a4/0x4500 [ 57.390628] rtnl_newlink+0xe0c/0x1390 [ 57.394500] ? trace_hardirqs_off+0x10/0x10 [ 57.398808] ? memset+0x31/0x40 [ 57.402080] ? rtnl_newlink+0x6d0/0x1390 [ 57.406129] ? rtnl_link_unregister+0x270/0x270 [ 57.410782] ? finish_task_switch+0x178/0x650 [ 57.415270] ? finish_task_switch+0x14d/0x650 [ 57.419747] ? find_held_lock+0x36/0x1d0 [ 57.423833] ? __mutex_lock+0x8b7/0x14c0 [ 57.427887] ? lock_downgrade+0x7f0/0x7f0 [ 57.432016] ? do_raw_spin_unlock+0x16a/0x250 [ 57.436505] rtnetlink_rcv_msg+0x34f/0x9d0 [ 57.440729] ? rtnl_bridge_getlink+0x760/0x760 [ 57.445290] ? find_held_lock+0x36/0x1d0 [ 57.449336] netlink_rcv_skb+0x133/0x370 [ 57.453380] ? rtnl_bridge_getlink+0x760/0x760 [ 57.457942] ? netlink_ack+0xa00/0xa00 [ 57.462347] ? netlink_deliver_tap+0x8e/0x920 [ 57.466845] rtnetlink_rcv+0x10/0x20 [ 57.470553] netlink_unicast+0x40d/0x5f0 [ 57.474602] ? netlink_attachskb+0x6e0/0x6e0 [ 57.479015] netlink_sendmsg+0x730/0xbd0 [ 57.483069] ? netlink_unicast+0x5f0/0x5f0 [ 57.487292] ? selinux_socket_sendmsg+0x31/0x40 [ 57.491944] ? security_socket_sendmsg+0x6a/0xa0 [ 57.501200] ? netlink_unicast+0x5f0/0x5f0 [ 57.505425] sock_sendmsg+0xb5/0xf0 [ 57.509038] ___sys_sendmsg+0x625/0x920 [ 57.512992] ? trace_hardirqs_off+0x10/0x10 [ 57.517304] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 57.522046] ? find_held_lock+0x36/0x1d0 [ 57.526096] ? lock_downgrade+0x7f0/0x7f0 [ 57.530232] ? __fget+0x1ca/0x2f0 [ 57.533664] ? __fget_light+0x166/0x200 [ 57.537617] ? __fdget+0xe/0x10 [ 57.540882] ? sockfd_lookup_light+0x1c/0x150 [ 57.545449] __sys_sendmsg+0xc1/0x140 [ 57.549224] ? SyS_shutdown+0x180/0x180 [ 57.553176] ? __sb_end_write+0xa4/0xd0 [ 57.557152] ? mutex_unlock+0xd/0x10 [ 57.560863] ? do_syscall_64+0x4c/0x5b0 [ 57.564856] ? __sys_sendmsg+0x140/0x140 [ 57.568905] SyS_sendmsg+0xd/0x20 [ 57.572433] do_syscall_64+0x1c7/0x5b0 [ 57.576305] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.581157] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 57.586343] RIP: 0033:0x459ef9 [ 57.589537] RSP: 002b:00007f666a648c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 57.597248] RAX: ffffffffffffffda RBX: 00007f666a648c90 RCX: 0000000000459ef9 [ 57.604534] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 57.611786] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 57.619038] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f666a6496d4 [ 57.626290] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 57.671265] batman_adv: batadv0: Adding interface: bridge_slave_1 [ 57.677520] batman_adv: batadv0: The MTU of interface bridge_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. [ 57.703601] batman_adv: batadv0: Interface activated: bridge_slave_1 [ 57.710634] FAULT_INJECTION: forcing a failure. [ 57.710634] name failslab, interval 1, probability 0, space 0, times 0 [ 57.732175] CPU: 0 PID: 7078 Comm: syz-executor.4 Not tainted 4.14.173-syzkaller #0 [ 57.740047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.749405] Call Trace: [ 57.752019] dump_stack+0xf7/0x13b [ 57.755570] should_fail.cold.3+0x105/0x14b [ 57.760248] should_failslab+0xba/0xf0 [ 57.764130] kmem_cache_alloc_node+0x287/0x790 [ 57.769847] __alloc_skb+0x92/0x500 [ 57.773481] ? skb_trim+0x160/0x160 [ 57.777093] ? if_nlmsg_size+0x2d9/0x6f0 [ 57.781231] rtmsg_ifinfo_build_skb+0x68/0x120 [ 57.785817] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 57.790662] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 57.795641] rtnetlink_event+0xc2/0x110 [ 57.799605] notifier_call_chain+0xd6/0x150 [ 57.803923] raw_notifier_call_chain+0x11/0x20 [ 57.808493] call_netdevice_notifiers_info+0x4b/0x60 [ 57.813576] __netdev_upper_dev_link+0x18e/0x1f0 [ 57.818332] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 57.823111] netdev_master_upper_dev_link+0x14/0x20 [ 57.828147] batadv_hardif_enable_interface+0x1af/0x990 [ 57.833664] batadv_softif_slave_add+0x82/0xe0 [ 57.838362] do_set_master+0x163/0x1f0 [ 57.842261] do_setlink+0x9dd/0x2c50 [ 57.845983] ? rtnl_register+0x20/0x20 [ 57.849860] ? trace_hardirqs_on+0x10/0x10 [ 57.854083] ? trace_hardirqs_off+0x10/0x10 [ 57.858392] ? __lock_acquire+0x6a4/0x4500 [ 57.862624] ? trace_hardirqs_off+0x10/0x10 [ 57.867132] rtnl_newlink+0xe0c/0x1390 [ 57.871024] ? rtnl_link_unregister+0x270/0x270 [ 57.875682] ? finish_task_switch+0x178/0x650 [ 57.880167] ? finish_task_switch+0x14d/0x650 [ 57.884654] ? find_held_lock+0x36/0x1d0 [ 57.888769] ? __mutex_lock+0x8b7/0x14c0 [ 57.892876] ? lock_downgrade+0x7f0/0x7f0 [ 57.897044] ? do_raw_spin_unlock+0x16a/0x250 [ 57.901559] rtnetlink_rcv_msg+0x34f/0x9d0 [ 57.905890] ? rtnl_bridge_getlink+0x760/0x760 [ 57.910457] ? find_held_lock+0x36/0x1d0 [ 57.914503] netlink_rcv_skb+0x133/0x370 [ 57.918566] ? rtnl_bridge_getlink+0x760/0x760 [ 57.923146] ? netlink_ack+0xa00/0xa00 [ 57.927139] ? netlink_deliver_tap+0x8e/0x920 [ 57.931704] rtnetlink_rcv+0x10/0x20 [ 57.935407] netlink_unicast+0x40d/0x5f0 [ 57.939462] ? netlink_attachskb+0x6e0/0x6e0 [ 57.943873] netlink_sendmsg+0x730/0xbd0 [ 57.947925] ? netlink_unicast+0x5f0/0x5f0 [ 57.952141] ? selinux_socket_sendmsg+0x31/0x40 [ 57.956802] ? security_socket_sendmsg+0x6a/0xa0 [ 57.961548] ? netlink_unicast+0x5f0/0x5f0 [ 57.966158] sock_sendmsg+0xb5/0xf0 [ 57.969842] ___sys_sendmsg+0x625/0x920 [ 57.973823] ? trace_hardirqs_off+0x10/0x10 [ 57.978130] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 57.982874] ? find_held_lock+0x36/0x1d0 [ 57.986929] ? lock_downgrade+0x7f0/0x7f0 [ 57.991061] ? __fget+0x1ca/0x2f0 [ 57.994494] ? __fget_light+0x166/0x200 [ 57.998886] ? __fdget+0xe/0x10 [ 58.002153] ? sockfd_lookup_light+0x1c/0x150 [ 58.006825] __sys_sendmsg+0xc1/0x140 [ 58.010607] ? SyS_shutdown+0x180/0x180 [ 58.014559] ? __sb_end_write+0xa4/0xd0 [ 58.018782] ? mutex_unlock+0xd/0x10 [ 58.022491] ? do_syscall_64+0x4c/0x5b0 [ 58.026476] ? __sys_sendmsg+0x140/0x140 [ 58.030539] SyS_sendmsg+0xd/0x20 [ 58.033984] do_syscall_64+0x1c7/0x5b0 [ 58.037870] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.042707] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 58.047886] RIP: 0033:0x459ef9 [ 58.051070] RSP: 002b:00007fd91524ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 58.058758] RAX: ffffffffffffffda RBX: 00007fd91524ec90 RCX: 0000000000459ef9 [ 58.066016] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 58.073339] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 58.080604] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91524f6d4 [ 58.087899] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 58.097751] batman_adv: batadv0: Adding interface: team0 [ 58.103716] batman_adv: batadv0: The MTU of interface team0 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. [ 58.128704] batman_adv: batadv0: Interface activated: team0 [ 58.135159] FAULT_INJECTION: forcing a failure. [ 58.135159] name failslab, interval 1, probability 0, space 0, times 0 [ 58.151380] CPU: 0 PID: 7090 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0 [ 58.159202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.168644] Call Trace: [ 58.171233] dump_stack+0xf7/0x13b [ 58.174757] should_fail.cold.3+0x105/0x14b [ 58.179061] should_failslab+0xba/0xf0 [ 58.182942] kmem_cache_alloc_node+0x287/0x790 [ 58.187559] __alloc_skb+0x92/0x500 [ 58.191187] ? skb_trim+0x160/0x160 [ 58.194808] ? if_nlmsg_size+0x2d9/0x6f0 [ 58.198856] rtmsg_ifinfo_build_skb+0x68/0x120 [ 58.203425] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 58.208258] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 58.213169] rtnetlink_event+0xc2/0x110 [ 58.217125] notifier_call_chain+0xd6/0x150 [ 58.221439] raw_notifier_call_chain+0x11/0x20 [ 58.226010] call_netdevice_notifiers_info+0x4b/0x60 [ 58.231101] __netdev_upper_dev_link+0x18e/0x1f0 [ 58.235848] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 58.240676] netdev_master_upper_dev_link+0x14/0x20 [ 58.245674] batadv_hardif_enable_interface+0x1af/0x990 [ 58.251072] batadv_softif_slave_add+0x82/0xe0 [ 58.255643] do_set_master+0x163/0x1f0 [ 58.259513] do_setlink+0x9dd/0x2c50 [ 58.263917] ? __lock_acquire+0x6a4/0x4500 [ 58.268305] ? trace_hardirqs_off+0x10/0x10 [ 58.272968] ? rtnl_register+0x20/0x20 [ 58.276845] ? trace_hardirqs_on+0x10/0x10 [ 58.281075] ? trace_hardirqs_off+0x10/0x10 [ 58.285386] ? __lock_acquire+0x6a4/0x4500 [ 58.289607] ? trace_hardirqs_off+0x10/0x10 [ 58.293923] ? trace_hardirqs_off+0x10/0x10 [ 58.298238] ? __lock_is_held+0xb5/0x140 [ 58.302307] ? trace_hardirqs_off+0x10/0x10 [ 58.306620] rtnl_newlink+0xe0c/0x1390 [ 58.310513] ? rtnl_link_unregister+0x270/0x270 [ 58.315182] ? finish_task_switch+0x178/0x650 [ 58.319665] ? finish_task_switch+0x14d/0x650 [ 58.324178] ? find_held_lock+0x36/0x1d0 [ 58.328237] ? __mutex_lock+0x8b7/0x14c0 [ 58.332281] ? lock_downgrade+0x7f0/0x7f0 [ 58.336451] ? do_raw_spin_unlock+0x16a/0x250 [ 58.340947] rtnetlink_rcv_msg+0x34f/0x9d0 [ 58.345176] ? rtnl_bridge_getlink+0x760/0x760 [ 58.349788] ? find_held_lock+0x36/0x1d0 [ 58.353851] netlink_rcv_skb+0x133/0x370 [ 58.357900] ? rtnl_bridge_getlink+0x760/0x760 [ 58.362491] ? netlink_ack+0xa00/0xa00 [ 58.366368] ? netlink_deliver_tap+0x8e/0x920 [ 58.370863] rtnetlink_rcv+0x10/0x20 [ 58.374565] netlink_unicast+0x40d/0x5f0 [ 58.378617] ? netlink_attachskb+0x6e0/0x6e0 [ 58.383012] netlink_sendmsg+0x730/0xbd0 [ 58.387065] ? netlink_unicast+0x5f0/0x5f0 [ 58.391287] ? selinux_socket_sendmsg+0x31/0x40 [ 58.395945] ? security_socket_sendmsg+0x6a/0xa0 [ 58.400691] ? netlink_unicast+0x5f0/0x5f0 [ 58.404915] sock_sendmsg+0xb5/0xf0 [ 58.408520] ___sys_sendmsg+0x625/0x920 [ 58.412483] ? trace_hardirqs_off+0x10/0x10 [ 58.416782] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 58.421532] ? find_held_lock+0x36/0x1d0 [ 58.425585] ? lock_downgrade+0x7f0/0x7f0 [ 58.429714] ? __fget+0x1ca/0x2f0 [ 58.433147] ? __fget_light+0x166/0x200 [ 58.437099] ? __fdget+0xe/0x10 [ 58.440369] ? sockfd_lookup_light+0x1c/0x150 [ 58.444845] __sys_sendmsg+0xc1/0x140 [ 58.448627] ? SyS_shutdown+0x180/0x180 [ 58.452595] ? __sb_end_write+0xa4/0xd0 [ 58.456554] ? mutex_unlock+0xd/0x10 [ 58.460260] ? do_syscall_64+0x4c/0x5b0 [ 58.464219] ? __sys_sendmsg+0x140/0x140 [ 58.468429] SyS_sendmsg+0xd/0x20 [ 58.471873] do_syscall_64+0x1c7/0x5b0 [ 58.475740] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.480564] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 58.485730] RIP: 0033:0x459ef9 [ 58.488897] RSP: 002b:00007f2d8618bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 58.496586] RAX: ffffffffffffffda RBX: 00007f2d8618bc90 RCX: 0000000000459ef9 [ 58.504037] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 58.511302] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 58.518557] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d8618c6d4 [ 58.525818] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 58.534604] batman_adv: batadv0: Adding interface: team0 [ 58.540676] batman_adv: batadv0: The MTU of interface team0 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. [ 58.565245] batman_adv: batadv0: Interface activated: team0 [ 58.573366] FAULT_INJECTION: forcing a failure. [ 58.573366] name failslab, interval 1, probability 0, space 0, times 0 [ 58.584953] CPU: 0 PID: 7091 Comm: syz-executor.2 Not tainted 4.14.173-syzkaller #0 [ 58.592768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.602123] Call Trace: [ 58.604713] dump_stack+0xf7/0x13b [ 58.608266] should_fail.cold.3+0x105/0x14b [ 58.612597] should_failslab+0xba/0xf0 [ 58.616486] kmem_cache_alloc_node+0x287/0x790 [ 58.621075] __alloc_skb+0x92/0x500 [ 58.625226] ? skb_trim+0x160/0x160 [ 58.628856] ? if_nlmsg_size+0x2d9/0x6f0 [ 58.632994] rtmsg_ifinfo_build_skb+0x68/0x120 [ 58.637582] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 58.642423] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 58.647350] rtnetlink_event+0xc2/0x110 [ 58.651323] notifier_call_chain+0xd6/0x150 [ 58.655643] raw_notifier_call_chain+0x11/0x20 [ 58.660225] call_netdevice_notifiers_info+0x4b/0x60 [ 58.665331] __netdev_upper_dev_link+0x18e/0x1f0 [ 58.670083] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 58.674847] netdev_master_upper_dev_link+0x14/0x20 [ 58.679863] batadv_hardif_enable_interface+0x1af/0x990 [ 58.685222] batadv_softif_slave_add+0x82/0xe0 [ 58.689794] do_set_master+0x163/0x1f0 [ 58.693668] do_setlink+0x9dd/0x2c50 [ 58.697365] ? rtnl_register+0x20/0x20 [ 58.701267] ? trace_hardirqs_on+0x10/0x10 [ 58.705509] ? trace_hardirqs_off+0x10/0x10 [ 58.709823] ? find_held_lock+0x36/0x1d0 [ 58.713889] ? find_held_lock+0x36/0x1d0 [ 58.717966] ? free_one_page+0x9c4/0x1050 [ 58.722130] ? lock_downgrade+0x7f0/0x7f0 [ 58.726300] ? __this_cpu_preempt_check+0x13/0x20 [ 58.731308] ? do_raw_spin_unlock+0x16a/0x250 [ 58.735960] rtnl_newlink+0xe0c/0x1390 [ 58.739841] ? rtnl_link_unregister+0x270/0x270 [ 58.744502] ? finish_task_switch+0x448/0x650 [ 58.748995] ? find_held_lock+0x36/0x1d0 [ 58.753050] ? __mutex_lock+0x8b7/0x14c0 [ 58.757104] ? lock_downgrade+0x7f0/0x7f0 [ 58.761321] ? do_raw_spin_unlock+0x16a/0x250 [ 58.765837] rtnetlink_rcv_msg+0x34f/0x9d0 [ 58.770063] ? rtnl_bridge_getlink+0x760/0x760 [ 58.774647] ? find_held_lock+0x36/0x1d0 [ 58.778712] netlink_rcv_skb+0x133/0x370 [ 58.782759] ? rtnl_bridge_getlink+0x760/0x760 [ 58.787328] ? netlink_ack+0xa00/0xa00 [ 58.791211] ? netlink_deliver_tap+0x8e/0x920 [ 58.795699] rtnetlink_rcv+0x10/0x20 [ 58.799409] netlink_unicast+0x40d/0x5f0 [ 58.803473] ? netlink_attachskb+0x6e0/0x6e0 [ 58.807892] netlink_sendmsg+0x730/0xbd0 [ 58.811958] ? netlink_unicast+0x5f0/0x5f0 [ 58.816204] ? selinux_socket_sendmsg+0x31/0x40 [ 58.820867] ? security_socket_sendmsg+0x6a/0xa0 [ 58.825630] ? netlink_unicast+0x5f0/0x5f0 [ 58.829903] sock_sendmsg+0xb5/0xf0 [ 58.833528] ___sys_sendmsg+0x625/0x920 [ 58.837500] ? trace_hardirqs_off+0x10/0x10 [ 58.841821] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 58.846571] ? find_held_lock+0x36/0x1d0 [ 58.850623] ? lock_downgrade+0x7f0/0x7f0 [ 58.854771] ? __fget+0x1ca/0x2f0 [ 58.858209] ? __fget_light+0x166/0x200 [ 58.862191] ? __fdget+0xe/0x10 [ 58.865568] ? sockfd_lookup_light+0x1c/0x150 [ 58.870060] __sys_sendmsg+0xc1/0x140 [ 58.873854] ? SyS_shutdown+0x180/0x180 [ 58.877906] ? __sb_end_write+0xa4/0xd0 [ 58.881892] ? mutex_unlock+0xd/0x10 [ 58.885608] ? do_syscall_64+0x4c/0x5b0 [ 58.889572] ? __sys_sendmsg+0x140/0x140 [ 58.893715] SyS_sendmsg+0xd/0x20 [ 58.897159] do_syscall_64+0x1c7/0x5b0 [ 58.901034] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.906090] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 58.911450] RIP: 0033:0x459ef9 [ 58.914653] RSP: 002b:00007fa8a10f3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 58.922350] RAX: ffffffffffffffda RBX: 00007fa8a10f3c90 RCX: 0000000000459ef9 [ 58.929724] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 58.936982] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 58.944246] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8a10f46d4 [ 58.951522] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 58.960363] batman_adv: batadv0: Adding interface: team0 [ 58.965830] batman_adv: batadv0: The MTU of interface team0 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. [ 58.990295] batman_adv: batadv0: Interface activated: team0 [ 59.011101] FAULT_INJECTION: forcing a failure. [ 59.011101] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 59.022931] CPU: 1 PID: 7096 Comm: syz-executor.0 Not tainted 4.14.173-syzkaller #0 [ 59.030767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.040137] Call Trace: [ 59.042724] dump_stack+0xf7/0x13b [ 59.046270] should_fail.cold.3+0x105/0x14b [ 59.050584] ? do_set_master+0xb6/0x1f0 [ 59.054555] __alloc_pages_nodemask+0x1d5/0x770 [ 59.059214] ? __alloc_pages_slowpath+0x2650/0x2650 [ 59.064220] ? lock_downgrade+0x7f0/0x7f0 [ 59.068362] cache_grow_begin+0x80/0x3f0 [ 59.072410] kmem_cache_alloc_node_trace+0x6aa/0x780 [ 59.077501] __kmalloc_node_track_caller+0x3c/0x70 [ 59.082417] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 59.087164] __alloc_skb+0xc1/0x500 [ 59.090833] ? skb_trim+0x160/0x160 [ 59.094511] ? if_nlmsg_size+0x2d9/0x6f0 [ 59.098601] rtmsg_ifinfo_build_skb+0x68/0x120 [ 59.103173] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 59.108192] rtnetlink_event+0xc2/0x110 [ 59.112154] notifier_call_chain+0xd6/0x150 [ 59.116462] raw_notifier_call_chain+0x11/0x20 [ 59.121489] call_netdevice_notifiers_info+0x4b/0x60 [ 59.126625] netdev_upper_dev_unlink+0xab/0xe0 [ 59.131192] ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30 [ 59.137404] bond_upper_dev_unlink.isra.45+0x33/0xc0 [ 59.142589] __bond_release_one+0x2c2/0x1370 [ 59.147169] ? bond_enslave+0x4a80/0x4a80 [ 59.151856] ? __lock_acquire+0x6a4/0x4500 [ 59.156188] bond_release+0xd/0x10 [ 59.159737] do_set_master+0xb6/0x1f0 [ 59.163549] do_setlink+0x9dd/0x2c50 [ 59.167357] ? __lock_acquire+0x6a4/0x4500 [ 59.171581] ? rtnl_register+0x20/0x20 [ 59.175592] ? __lock_acquire+0x6a4/0x4500 [ 59.179825] ? __lock_acquire+0x6a4/0x4500 [ 59.184147] ? trace_hardirqs_on+0x10/0x10 [ 59.188877] ? trace_hardirqs_off+0x10/0x10 [ 59.193188] ? __lock_acquire+0x6a4/0x4500 [ 59.197423] ? trace_hardirqs_off+0x10/0x10 [ 59.201770] rtnl_newlink+0xe0c/0x1390 [ 59.205671] ? memset+0x31/0x40 [ 59.208939] ? rtnl_newlink+0x6d0/0x1390 [ 59.213440] ? rtnl_link_unregister+0x270/0x270 [ 59.218224] ? finish_task_switch+0x178/0x650 [ 59.222708] ? finish_task_switch+0x14d/0x650 [ 59.227349] ? find_held_lock+0x36/0x1d0 [ 59.231413] ? __mutex_lock+0x8b7/0x14c0 [ 59.235472] ? lock_downgrade+0x7f0/0x7f0 [ 59.240163] ? do_raw_spin_unlock+0x16a/0x250 [ 59.244835] rtnetlink_rcv_msg+0x34f/0x9d0 [ 59.249153] ? rtnl_bridge_getlink+0x760/0x760 [ 59.253737] ? find_held_lock+0x36/0x1d0 [ 59.257795] netlink_rcv_skb+0x133/0x370 [ 59.261856] ? rtnl_bridge_getlink+0x760/0x760 [ 59.266440] ? netlink_ack+0xa00/0xa00 [ 59.270357] ? netlink_deliver_tap+0x8e/0x920 [ 59.275178] rtnetlink_rcv+0x10/0x20 [ 59.279121] netlink_unicast+0x40d/0x5f0 [ 59.283438] ? netlink_attachskb+0x6e0/0x6e0 [ 59.287942] netlink_sendmsg+0x730/0xbd0 [ 59.292256] ? netlink_unicast+0x5f0/0x5f0 [ 59.296706] ? selinux_socket_sendmsg+0x31/0x40 [ 59.301360] ? security_socket_sendmsg+0x6a/0xa0 [ 59.306105] ? netlink_unicast+0x5f0/0x5f0 [ 59.310441] sock_sendmsg+0xb5/0xf0 [ 59.314072] ___sys_sendmsg+0x625/0x920 [ 59.318124] ? trace_hardirqs_off+0x10/0x10 [ 59.322464] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 59.327225] ? find_held_lock+0x36/0x1d0 [ 59.331278] ? lock_downgrade+0x7f0/0x7f0 [ 59.335416] ? __fget+0x1ca/0x2f0 [ 59.338860] ? __fget_light+0x166/0x200 [ 59.342848] ? __fdget+0xe/0x10 [ 59.346123] ? sockfd_lookup_light+0x1c/0x150 [ 59.350613] __sys_sendmsg+0xc1/0x140 [ 59.354397] ? SyS_shutdown+0x180/0x180 [ 59.358385] ? __sb_end_write+0xa4/0xd0 [ 59.362358] ? mutex_unlock+0xd/0x10 [ 59.366077] ? do_syscall_64+0x4c/0x5b0 [ 59.370042] ? __sys_sendmsg+0x140/0x140 [ 59.374110] SyS_sendmsg+0xd/0x20 [ 59.378156] do_syscall_64+0x1c7/0x5b0 [ 59.384564] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 59.390979] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 59.396265] RIP: 0033:0x459ef9 [ 59.399446] RSP: 002b:00007f666a648c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 59.407933] RAX: ffffffffffffffda RBX: 00007f666a648c90 RCX: 0000000000459ef9 [ 59.415675] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 59.424429] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 59.431720] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f666a6496d4 [ 59.439698] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 59.451522] bond0: Releasing backup interface bond_slave_0 [ 59.482542] batman_adv: batadv0: Adding interface: bond_slave_0 [ 59.490314] batman_adv: batadv0: The MTU of interface bond_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. [ 59.516978] batman_adv: batadv0: Not using interface bond_slave_0 (retrying later): interface not active [ 59.526938] FAULT_INJECTION: forcing a failure. 2020/03/12 23:44:39 executed programs: 58 [ 59.526938] name failslab, interval 1, probability 0, space 0, times 0 [ 59.547890] CPU: 1 PID: 7104 Comm: syz-executor.1 Not tainted 4.14.173-syzkaller #0 [ 59.555727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.565083] Call Trace: [ 59.567685] dump_stack+0xf7/0x13b [ 59.572072] should_fail.cold.3+0x105/0x14b [ 59.576421] should_failslab+0xba/0xf0 [ 59.580309] kmem_cache_alloc+0x2cf/0x790 [ 59.584617] ? memcpy+0x45/0x50 [ 59.588020] ? kstrdup+0x42/0x60 [ 59.591372] __kernfs_new_node+0x63/0x470 [ 59.595604] ? lock_downgrade+0x7f0/0x7f0 [ 59.599741] kernfs_new_node+0x5e/0xe0 [ 59.604036] kernfs_create_link+0x25/0x130 [ 59.608286] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 59.613554] sysfs_create_link+0x43/0xb0 [ 59.617601] netdev_adjacent_sysfs_add+0x94/0xb0 [ 59.622342] ? napi_disable+0x80/0x80 [ 59.626147] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 59.631323] __netdev_upper_dev_link+0x174/0x1f0 [ 59.636071] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 59.640819] netdev_master_upper_dev_link+0x14/0x20 [ 59.645831] batadv_hardif_enable_interface+0x1af/0x990 [ 59.651433] batadv_softif_slave_add+0x82/0xe0 [ 59.655998] do_set_master+0x163/0x1f0 [ 59.659879] do_setlink+0x9dd/0x2c50 [ 59.663601] ? rtnl_register+0x20/0x20 [ 59.667478] ? trace_hardirqs_on+0x10/0x10 [ 59.671697] ? trace_hardirqs_off+0x10/0x10 [ 59.676006] ? __lock_acquire+0x6a4/0x4500 [ 59.680239] ? trace_hardirqs_off+0x10/0x10 [ 59.684689] rtnl_newlink+0xe0c/0x1390 [ 59.688579] ? rtnl_link_unregister+0x270/0x270 [ 59.693254] ? finish_task_switch+0x178/0x650 [ 59.697748] ? finish_task_switch+0x14d/0x650 [ 59.702243] ? find_held_lock+0x36/0x1d0 [ 59.706321] ? __mutex_lock+0x8b7/0x14c0 [ 59.710383] ? lock_downgrade+0x7f0/0x7f0 [ 59.715822] ? do_raw_spin_unlock+0x16a/0x250 [ 59.720334] rtnetlink_rcv_msg+0x34f/0x9d0 [ 59.724635] ? rtnl_bridge_getlink+0x760/0x760 [ 59.729221] ? find_held_lock+0x36/0x1d0 [ 59.733387] netlink_rcv_skb+0x133/0x370 [ 59.737441] ? rtnl_bridge_getlink+0x760/0x760 [ 59.742021] ? netlink_ack+0xa00/0xa00 [ 59.745913] ? netlink_deliver_tap+0x8e/0x920 [ 59.750601] rtnetlink_rcv+0x10/0x20 [ 59.754301] netlink_unicast+0x40d/0x5f0 [ 59.758348] ? netlink_attachskb+0x6e0/0x6e0 [ 59.762894] netlink_sendmsg+0x730/0xbd0 [ 59.767363] ? netlink_unicast+0x5f0/0x5f0 [ 59.772919] ? selinux_socket_sendmsg+0x31/0x40 [ 59.777585] ? security_socket_sendmsg+0x6a/0xa0 [ 59.782336] ? netlink_unicast+0x5f0/0x5f0 [ 59.786872] sock_sendmsg+0xb5/0xf0 [ 59.790782] ___sys_sendmsg+0x625/0x920 [ 59.794954] ? trace_hardirqs_off+0x10/0x10 [ 59.799280] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 59.804333] ? find_held_lock+0x36/0x1d0 [ 59.808390] ? lock_downgrade+0x7f0/0x7f0 [ 59.812538] ? __fget+0x1ca/0x2f0 [ 59.815980] ? __fget_light+0x166/0x200 [ 59.820267] ? __fdget+0xe/0x10 [ 59.823777] ? sockfd_lookup_light+0x1c/0x150 [ 59.828342] __sys_sendmsg+0xc1/0x140 [ 59.832246] ? SyS_shutdown+0x180/0x180 [ 59.836208] ? __sb_end_write+0xa4/0xd0 [ 59.840373] ? mutex_unlock+0xd/0x10 [ 59.844078] ? do_syscall_64+0x4c/0x5b0 [ 59.848032] ? __sys_sendmsg+0x140/0x140 [ 59.852081] SyS_sendmsg+0xd/0x20 [ 59.855515] do_syscall_64+0x1c7/0x5b0 [ 59.859391] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 59.864242] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 59.869509] RIP: 0033:0x459ef9 [ 59.872902] RSP: 002b:00007f168d5e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 59.880602] RAX: ffffffffffffffda RBX: 00007f168d5e9c90 RCX: 0000000000459ef9 [ 59.887954] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 59.895209] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 59.902555] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f168d5ea6d4 [ 59.909855] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 59.919997] FAULT_INJECTION: forcing a failure. [ 59.919997] name failslab, interval 1, probability 0, space 0, times 0 [ 59.954612] CPU: 0 PID: 7112 Comm: syz-executor.5 Not tainted 4.14.173-syzkaller #0 [ 59.962566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.972129] Call Trace: [ 59.974710] dump_stack+0xf7/0x13b [ 59.978390] should_fail.cold.3+0x105/0x14b [ 59.982701] should_failslab+0xba/0xf0 [ 59.986571] kmem_cache_alloc_node+0x287/0x790 [ 59.991215] __alloc_skb+0x92/0x500 [ 59.994825] ? skb_trim+0x160/0x160 [ 59.998451] ? if_nlmsg_size+0x2d9/0x6f0 [ 60.002507] rtmsg_ifinfo_build_skb+0x68/0x120 [ 60.007082] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 60.011917] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 60.016831] rtnetlink_event+0xc2/0x110 [ 60.020931] notifier_call_chain+0xd6/0x150 [ 60.025239] raw_notifier_call_chain+0x11/0x20 [ 60.029804] call_netdevice_notifiers_info+0x4b/0x60 [ 60.034893] __netdev_upper_dev_link+0x18e/0x1f0 [ 60.039642] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 60.044404] netdev_master_upper_dev_link+0x14/0x20 [ 60.049413] batadv_hardif_enable_interface+0x1af/0x990 [ 60.054778] batadv_softif_slave_add+0x82/0xe0 [ 60.059348] do_set_master+0x163/0x1f0 [ 60.063231] do_setlink+0x9dd/0x2c50 [ 60.066947] ? rtnl_register+0x20/0x20 [ 60.070816] ? trace_hardirqs_on+0x10/0x10 [ 60.075032] ? trace_hardirqs_off+0x10/0x10 [ 60.079420] ? find_held_lock+0x36/0x1d0 [ 60.083499] ? find_held_lock+0x36/0x1d0 [ 60.088508] ? free_one_page+0x9c4/0x1050 [ 60.092641] ? lock_downgrade+0x7f0/0x7f0 [ 60.096770] ? __this_cpu_preempt_check+0x13/0x20 [ 60.101604] ? do_raw_spin_unlock+0x16a/0x250 [ 60.106092] rtnl_newlink+0xe0c/0x1390 [ 60.109974] ? rtnl_link_unregister+0x270/0x270 [ 60.114630] ? finish_task_switch+0x448/0x650 [ 60.119106] ? find_held_lock+0x36/0x1d0 [ 60.123155] ? __mutex_lock+0x8b7/0x14c0 [ 60.127978] ? lock_downgrade+0x7f0/0x7f0 [ 60.132121] ? do_raw_spin_unlock+0x16a/0x250 [ 60.136624] rtnetlink_rcv_msg+0x34f/0x9d0 [ 60.140841] ? rtnl_bridge_getlink+0x760/0x760 [ 60.145404] ? find_held_lock+0x36/0x1d0 [ 60.149448] netlink_rcv_skb+0x133/0x370 [ 60.153500] ? rtnl_bridge_getlink+0x760/0x760 [ 60.158081] ? netlink_ack+0xa00/0xa00 [ 60.162018] ? netlink_deliver_tap+0x8e/0x920 [ 60.166575] rtnetlink_rcv+0x10/0x20 [ 60.170282] netlink_unicast+0x40d/0x5f0 [ 60.174502] ? netlink_attachskb+0x6e0/0x6e0 [ 60.178907] netlink_sendmsg+0x730/0xbd0 [ 60.182957] ? netlink_unicast+0x5f0/0x5f0 [ 60.187187] ? selinux_socket_sendmsg+0x31/0x40 [ 60.191856] ? security_socket_sendmsg+0x6a/0xa0 [ 60.196595] ? netlink_unicast+0x5f0/0x5f0 [ 60.200813] sock_sendmsg+0xb5/0xf0 [ 60.204436] ___sys_sendmsg+0x625/0x920 [ 60.208402] ? trace_hardirqs_off+0x10/0x10 [ 60.212716] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 60.217548] ? find_held_lock+0x36/0x1d0 [ 60.221600] ? lock_downgrade+0x7f0/0x7f0 [ 60.225741] ? __fget+0x1ca/0x2f0 [ 60.229194] ? __fget_light+0x166/0x200 [ 60.233172] ? __fdget+0xe/0x10 [ 60.236435] ? sockfd_lookup_light+0x1c/0x150 [ 60.241111] __sys_sendmsg+0xc1/0x140 [ 60.244911] ? SyS_shutdown+0x180/0x180 [ 60.248903] ? __sb_end_write+0xa4/0xd0 [ 60.252864] ? mutex_unlock+0xd/0x10 [ 60.256564] ? do_syscall_64+0x4c/0x5b0 [ 60.260544] ? __sys_sendmsg+0x140/0x140 [ 60.264595] SyS_sendmsg+0xd/0x20 [ 60.268044] do_syscall_64+0x1c7/0x5b0 [ 60.271919] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 60.276768] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 60.281946] RIP: 0033:0x459ef9 [ 60.285564] RSP: 002b:00007f5fa9badc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 60.293972] RAX: ffffffffffffffda RBX: 00007f5fa9badc90 RCX: 0000000000459ef9 [ 60.301230] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 60.308690] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 60.318997] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fa9bae6d4 [ 60.326520] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 60.344763] batman_adv: batadv0: Adding interface: team0 [ 60.353037] batman_adv: batadv0: The MTU of interface team0 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. [ 60.382513] batman_adv: batadv0: Interface activated: team0 [ 60.393295] FAULT_INJECTION: forcing a failure. [ 60.393295] name failslab, interval 1, probability 0, space 0, times 0 [ 60.428961] CPU: 1 PID: 7118 Comm: syz-executor.0 Not tainted 4.14.173-syzkaller #0 [ 60.436793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.446499] Call Trace: [ 60.449089] dump_stack+0xf7/0x13b [ 60.452673] should_fail.cold.3+0x105/0x14b [ 60.457006] should_failslab+0xba/0xf0 [ 60.461075] kmem_cache_alloc_trace+0x2ea/0x7a0 [ 60.466992] ? __wake_up+0xe/0x10 [ 60.470636] ? netlink_broadcast_filtered+0x297/0x8f0 [ 60.475824] ? __alloc_skb+0x308/0x500 [ 60.479820] netdevice_event+0x16b/0x6d0 [ 60.484445] ? update_gid_event_work_handler+0xb0/0xb0 [ 60.489724] ? add_netdev_upper_ips+0x20/0x20 [ 60.494384] ? inetaddr_event+0x190/0x190 [ 60.498520] ? _add_netdev_ips+0x30/0x30 [ 60.502575] ? is_eth_port_of_netdev.part.7+0x1e0/0x1e0 [ 60.508050] ? rtmsg_ifinfo_event.part.27+0x7a/0xb0 [ 60.513309] notifier_call_chain+0xd6/0x150 [ 60.517793] raw_notifier_call_chain+0x11/0x20 [ 60.522364] call_netdevice_notifiers_info+0x4b/0x60 [ 60.527720] netdev_upper_dev_unlink+0xab/0xe0 [ 60.532304] ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30 [ 60.538571] bond_upper_dev_unlink.isra.45+0x33/0xc0 [ 60.543724] __bond_release_one+0x2c2/0x1370 [ 60.548131] ? bond_enslave+0x4a80/0x4a80 [ 60.552270] ? cpumask_next+0x21/0x30 [ 60.556319] ? cpumask_next_and+0x4d/0x90 [ 60.560460] ? find_busiest_group+0x374/0x2b00 [ 60.566399] ? __lock_acquire+0x6a4/0x4500 [ 60.570636] bond_release+0xd/0x10 [ 60.574169] do_set_master+0xb6/0x1f0 [ 60.577970] do_setlink+0x9dd/0x2c50 [ 60.581795] ? __lock_acquire+0x6a4/0x4500 [ 60.587594] ? rtnl_register+0x20/0x20 [ 60.591496] ? __lock_acquire+0x6a4/0x4500 [ 60.596167] ? __lock_acquire+0x6a4/0x4500 [ 60.600401] ? trace_hardirqs_off+0x10/0x10 [ 60.604734] rtnl_newlink+0xe0c/0x1390 [ 60.608620] ? memset+0x31/0x40 [ 60.613527] ? rtnl_newlink+0x6d0/0x1390 [ 60.617593] ? rtnl_link_unregister+0x270/0x270 [ 60.622252] ? finish_task_switch+0x178/0x650 [ 60.626836] ? finish_task_switch+0x14d/0x650 [ 60.631333] ? find_held_lock+0x36/0x1d0 [ 60.635478] ? __mutex_lock+0x8b7/0x14c0 [ 60.639620] ? lock_downgrade+0x7f0/0x7f0 [ 60.643754] ? do_raw_spin_unlock+0x16a/0x250 [ 60.648797] rtnetlink_rcv_msg+0x34f/0x9d0 [ 60.653020] ? rtnl_bridge_getlink+0x760/0x760 [ 60.657587] ? find_held_lock+0x36/0x1d0 [ 60.661741] netlink_rcv_skb+0x133/0x370 [ 60.665968] ? rtnl_bridge_getlink+0x760/0x760 [ 60.670538] ? netlink_ack+0xa00/0xa00 [ 60.674422] ? netlink_deliver_tap+0x8e/0x920 [ 60.679291] rtnetlink_rcv+0x10/0x20 [ 60.683015] netlink_unicast+0x40d/0x5f0 [ 60.687073] ? netlink_attachskb+0x6e0/0x6e0 [ 60.691471] netlink_sendmsg+0x730/0xbd0 [ 60.695517] ? netlink_unicast+0x5f0/0x5f0 [ 60.700311] ? selinux_socket_sendmsg+0x31/0x40 [ 60.704985] ? security_socket_sendmsg+0x6a/0xa0 [ 60.709739] ? netlink_unicast+0x5f0/0x5f0 [ 60.714369] sock_sendmsg+0xb5/0xf0 [ 60.718087] ___sys_sendmsg+0x625/0x920 [ 60.722248] ? trace_hardirqs_off+0x10/0x10 [ 60.726566] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 60.731392] ? find_held_lock+0x36/0x1d0 [ 60.735443] ? lock_downgrade+0x7f0/0x7f0 [ 60.739692] ? __fget+0x1ca/0x2f0 [ 60.743143] ? __fget_light+0x166/0x200 [ 60.747122] ? __fdget+0xe/0x10 [ 60.750386] ? sockfd_lookup_light+0x1c/0x150 [ 60.754872] __sys_sendmsg+0xc1/0x140 [ 60.758652] ? SyS_shutdown+0x180/0x180 [ 60.762614] ? __sb_end_write+0xa4/0xd0 [ 60.766983] ? mutex_unlock+0xd/0x10 [ 60.770691] ? do_syscall_64+0x4c/0x5b0 [ 60.774669] ? __sys_sendmsg+0x140/0x140 [ 60.778711] SyS_sendmsg+0xd/0x20 [ 60.782157] do_syscall_64+0x1c7/0x5b0 [ 60.786033] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 60.791910] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 60.797088] RIP: 0033:0x459ef9 [ 60.800458] RSP: 002b:00007f666a648c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 60.808250] RAX: ffffffffffffffda RBX: 00007f666a648c90 RCX: 0000000000459ef9 [ 60.815508] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 60.822772] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 60.830140] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f666a6496d4 [ 60.837400] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 60.847142] bond0: Releasing backup interface bond_slave_1 [ 60.894212] batman_adv: batadv0: Adding interface: bond_slave_1 [ 60.900441] batman_adv: batadv0: The MTU of interface bond_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. [ 60.925643] batman_adv: batadv0: Not using interface bond_slave_1 (retrying later): interface not active [ 61.021942] FAULT_INJECTION: forcing a failure. [ 61.021942] name failslab, interval 1, probability 0, space 0, times 0 [ 61.035679] CPU: 0 PID: 7149 Comm: syz-executor.0 Not tainted 4.14.173-syzkaller #0 [ 61.043536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.052875] Call Trace: [ 61.055552] dump_stack+0xf7/0x13b [ 61.059090] should_fail.cold.3+0x105/0x14b [ 61.063396] should_failslab+0xba/0xf0 [ 61.067285] kmem_cache_alloc_node_trace+0x279/0x780 [ 61.072383] __kmalloc_node_track_caller+0x3c/0x70 [ 61.077300] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 61.082061] __alloc_skb+0xc1/0x500 [ 61.085676] ? skb_trim+0x160/0x160 [ 61.089284] ? if_nlmsg_size+0x2d9/0x6f0 [ 61.093326] rtmsg_ifinfo_build_skb+0x68/0x120 [ 61.097890] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 61.102714] rtmsg_ifinfo+0x4a/0x70 [ 61.106332] dev_close_many+0x287/0x610 [ 61.110296] ? list_netdevice+0x4b0/0x4b0 [ 61.114426] ? mark_held_locks+0xc7/0x130 [ 61.118568] ? dev_mc_unsync+0x165/0x1a5 [ 61.122609] dev_close.part.89+0xe5/0x190 [ 61.126750] ? dev_close_many+0x610/0x610 [ 61.130986] ? dev_mc_unsync+0x165/0x1a5 [ 61.135061] ? __local_bh_enable_ip+0x9c/0x180 [ 61.139985] ? _raw_spin_unlock_bh+0x30/0x40 [ 61.144388] dev_close+0x40/0x50 [ 61.147886] team_port_del+0x2c0/0x770 [ 61.151761] team_del_slave+0x34/0x70 [ 61.155544] do_set_master+0xb6/0x1f0 [ 61.159330] do_setlink+0x9dd/0x2c50 [ 61.163027] ? trace_hardirqs_on+0x10/0x10 [ 61.167431] ? find_held_lock+0x36/0x1d0 [ 61.171694] ? rtnl_register+0x20/0x20 [ 61.175564] ? find_held_lock+0x36/0x1d0 [ 61.179605] ? is_bpf_text_address+0x60/0xe0 [ 61.184089] ? lock_downgrade+0x7f0/0x7f0 [ 61.188222] ? __lock_acquire+0x6a4/0x4500 [ 61.192439] ? __lock_acquire+0x6a4/0x4500 [ 61.196669] ? __kernel_text_address+0xd/0x40 [ 61.201166] ? unwind_get_return_address+0x61/0xa0 [ 61.206102] ? __save_stack_trace+0x7e/0xd0 [ 61.210442] rtnl_newlink+0xe0c/0x1390 [ 61.214317] ? rtnl_newlink+0x6d0/0x1390 [ 61.218361] ? save_stack_trace+0x16/0x20 [ 61.222503] ? save_stack+0x43/0xd0 [ 61.226125] ? rtnl_link_unregister+0x270/0x270 [ 61.230774] ? avc_has_perm_noaudit+0x236/0x400 [ 61.235440] ? lock_downgrade+0x7f0/0x7f0 [ 61.239586] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 61.243986] ? lock_acquire+0x173/0x400 [ 61.247964] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 61.252384] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 61.256819] rtnetlink_rcv_msg+0x34f/0x9d0 [ 61.261050] ? rtnl_bridge_getlink+0x760/0x760 [ 61.265634] ? find_held_lock+0x36/0x1d0 [ 61.269689] netlink_rcv_skb+0x133/0x370 [ 61.273738] ? rtnl_bridge_getlink+0x760/0x760 [ 61.278305] ? netlink_ack+0xa00/0xa00 [ 61.282208] ? netlink_deliver_tap+0x8e/0x920 [ 61.286695] rtnetlink_rcv+0x10/0x20 [ 61.290392] netlink_unicast+0x40d/0x5f0 [ 61.294458] ? netlink_attachskb+0x6e0/0x6e0 [ 61.298860] netlink_sendmsg+0x730/0xbd0 [ 61.302913] ? netlink_unicast+0x5f0/0x5f0 [ 61.307138] ? selinux_socket_sendmsg+0x31/0x40 [ 61.311977] ? security_socket_sendmsg+0x6a/0xa0 [ 61.316736] ? netlink_unicast+0x5f0/0x5f0 [ 61.320974] sock_sendmsg+0xb5/0xf0 [ 61.324586] ___sys_sendmsg+0x625/0x920 [ 61.328572] ? trace_hardirqs_off+0x10/0x10 [ 61.332885] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 61.337628] ? find_held_lock+0x36/0x1d0 [ 61.341690] ? lock_downgrade+0x7f0/0x7f0 [ 61.345827] ? __fget+0x1ca/0x2f0 [ 61.349285] ? __fget_light+0x166/0x200 [ 61.353246] ? __fdget+0xe/0x10 [ 61.356600] ? sockfd_lookup_light+0x1c/0x150 [ 61.361080] __sys_sendmsg+0xc1/0x140 [ 61.364876] ? SyS_shutdown+0x180/0x180 [ 61.368855] ? __sb_end_write+0xa4/0xd0 [ 61.372818] ? mutex_unlock+0xd/0x10 [ 61.376525] ? do_syscall_64+0x4c/0x5b0 [ 61.380569] ? __sys_sendmsg+0x140/0x140 [ 61.384736] SyS_sendmsg+0xd/0x20 [ 61.388241] do_syscall_64+0x1c7/0x5b0 [ 61.392193] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 61.397034] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 61.402213] RIP: 0033:0x459ef9 [ 61.405426] RSP: 002b:00007f666a648c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 61.413234] RAX: ffffffffffffffda RBX: 00007f666a648c90 RCX: 0000000000459ef9 [ 61.420672] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 61.427951] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 61.435209] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f666a6496d4 [ 61.442476] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 61.454579] team0: Port device team_slave_0 removed [ 61.461608] batman_adv: batadv0: Adding interface: team_slave_0 [ 61.467676] batman_adv: batadv0: The MTU of interface team_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. [ 61.492707] batman_adv: batadv0: Not using interface team_slave_0 (retrying later): interface not active [ 61.502828] FAULT_INJECTION: forcing a failure. [ 61.502828] name failslab, interval 1, probability 0, space 0, times 0 [ 61.520680] CPU: 1 PID: 7150 Comm: syz-executor.4 Not tainted 4.14.173-syzkaller #0 [ 61.528596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.537955] Call Trace: [ 61.540567] dump_stack+0xf7/0x13b [ 61.544136] should_fail.cold.3+0x105/0x14b [ 61.548555] should_failslab+0xba/0xf0 [ 61.552799] kmem_cache_alloc_node+0x287/0x790 [ 61.557421] __alloc_skb+0x92/0x500 [ 61.561245] ? skb_trim+0x160/0x160 [ 61.564881] ? if_nlmsg_size+0x2d9/0x6f0 [ 61.568956] rtmsg_ifinfo_build_skb+0x68/0x120 [ 61.573559] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 61.578580] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 61.585319] rtnetlink_event+0xc2/0x110 [ 61.589282] notifier_call_chain+0xd6/0x150 [ 61.593604] raw_notifier_call_chain+0x11/0x20 [ 61.598191] call_netdevice_notifiers_info+0x4b/0x60 [ 61.603286] __netdev_upper_dev_link+0x18e/0x1f0 [ 61.608416] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 61.613169] netdev_master_upper_dev_link+0x14/0x20 [ 61.618371] batadv_hardif_enable_interface+0x1af/0x990 [ 61.623913] batadv_softif_slave_add+0x82/0xe0 [ 61.628610] do_set_master+0x163/0x1f0 [ 61.632499] do_setlink+0x9dd/0x2c50 [ 61.636233] ? __lock_acquire+0x6a4/0x4500 [ 61.640463] ? trace_hardirqs_off+0x10/0x10 [ 61.644788] ? rtnl_register+0x20/0x20 [ 61.648683] ? trace_hardirqs_on+0x10/0x10 [ 61.652908] ? trace_hardirqs_off+0x10/0x10 [ 61.657238] ? __lock_acquire+0x6a4/0x4500 [ 61.661464] ? trace_hardirqs_off+0x10/0x10 [ 61.665876] ? __lock_is_held+0xb5/0x140 [ 61.671160] ? trace_hardirqs_off+0x10/0x10 [ 61.675604] ? trace_hardirqs_off+0x10/0x10 [ 61.680270] rtnl_newlink+0xe0c/0x1390 [ 61.684225] ? rtnl_link_unregister+0x270/0x270 [ 61.688891] ? finish_task_switch+0x178/0x650 [ 61.693378] ? finish_task_switch+0x14d/0x650 [ 61.697955] ? find_held_lock+0x36/0x1d0 [ 61.702018] ? __mutex_lock+0x8b7/0x14c0 [ 61.706085] ? lock_downgrade+0x7f0/0x7f0 [ 61.710237] ? do_raw_spin_unlock+0x16a/0x250 [ 61.714967] rtnetlink_rcv_msg+0x34f/0x9d0 [ 61.719295] ? rtnl_bridge_getlink+0x760/0x760 [ 61.723884] ? find_held_lock+0x36/0x1d0 [ 61.727954] netlink_rcv_skb+0x133/0x370 [ 61.732007] ? rtnl_bridge_getlink+0x760/0x760 [ 61.736714] ? netlink_ack+0xa00/0xa00 [ 61.740609] ? netlink_deliver_tap+0x8e/0x920 [ 61.745110] rtnetlink_rcv+0x10/0x20 [ 61.748950] netlink_unicast+0x40d/0x5f0 [ 61.753008] ? netlink_attachskb+0x6e0/0x6e0 [ 61.757410] netlink_sendmsg+0x730/0xbd0 [ 61.761456] ? netlink_unicast+0x5f0/0x5f0 [ 61.765674] ? selinux_socket_sendmsg+0x31/0x40 [ 61.770341] ? security_socket_sendmsg+0x6a/0xa0 [ 61.775083] ? netlink_unicast+0x5f0/0x5f0 [ 61.779396] sock_sendmsg+0xb5/0xf0 [ 61.783010] ___sys_sendmsg+0x625/0x920 [ 61.786972] ? trace_hardirqs_off+0x10/0x10 [ 61.791293] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 61.796048] ? find_held_lock+0x36/0x1d0 [ 61.800282] ? lock_downgrade+0x7f0/0x7f0 [ 61.804437] ? __fget+0x1ca/0x2f0 [ 61.808150] ? __fget_light+0x166/0x200 [ 61.812111] ? __fdget+0xe/0x10 [ 61.815392] ? sockfd_lookup_light+0x1c/0x150 [ 61.819909] __sys_sendmsg+0xc1/0x140 [ 61.824213] ? SyS_shutdown+0x180/0x180 [ 61.828196] ? __sb_end_write+0xa4/0xd0 [ 61.832172] ? mutex_unlock+0xd/0x10 [ 61.835882] ? do_syscall_64+0x4c/0x5b0 [ 61.839859] ? __sys_sendmsg+0x140/0x140 [ 61.844341] SyS_sendmsg+0xd/0x20 [ 61.847778] do_syscall_64+0x1c7/0x5b0 [ 61.851648] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 61.856488] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 61.861666] RIP: 0033:0x459ef9 [ 61.864865] RSP: 002b:00007fd91524ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 61.872565] RAX: ffffffffffffffda RBX: 00007fd91524ec90 RCX: 0000000000459ef9 [ 61.879824] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 61.887077] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 61.894365] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91524f6d4 [ 61.901620] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 61.910163] batman_adv: batadv0: Adding interface: veth1 [ 61.915735] batman_adv: batadv0: The MTU of interface veth1 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. [ 61.941852] batman_adv: batadv0: Interface activated: veth1 [ 61.950705] FAULT_INJECTION: forcing a failure. [ 61.950705] name failslab, interval 1, probability 0, space 0, times 0 [ 62.002454] CPU: 0 PID: 7153 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0 [ 62.010283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.019652] Call Trace: [ 62.022232] dump_stack+0xf7/0x13b [ 62.025758] should_fail.cold.3+0x105/0x14b [ 62.030070] should_failslab+0xba/0xf0 [ 62.033950] kmem_cache_alloc_node+0x287/0x790 [ 62.038517] __alloc_skb+0x92/0x500 [ 62.042213] ? skb_trim+0x160/0x160 [ 62.045942] ? if_nlmsg_size+0x2d9/0x6f0 [ 62.050065] rtmsg_ifinfo_build_skb+0x68/0x120 [ 62.054967] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 62.059796] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 62.064711] rtnetlink_event+0xc2/0x110 [ 62.068670] notifier_call_chain+0xd6/0x150 [ 62.072974] raw_notifier_call_chain+0x11/0x20 [ 62.077682] call_netdevice_notifiers_info+0x4b/0x60 [ 62.082786] __netdev_upper_dev_link+0x18e/0x1f0 [ 62.087526] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 62.092279] netdev_master_upper_dev_link+0x14/0x20 [ 62.097291] batadv_hardif_enable_interface+0x1af/0x990 [ 62.102650] batadv_softif_slave_add+0x82/0xe0 [ 62.107230] do_set_master+0x163/0x1f0 [ 62.111104] do_setlink+0x9dd/0x2c50 [ 62.114817] ? rtnl_register+0x20/0x20 [ 62.118693] ? trace_hardirqs_on+0x10/0x10 [ 62.122908] ? trace_hardirqs_off+0x10/0x10 [ 62.127207] ? find_held_lock+0x36/0x1d0 [ 62.131255] ? find_held_lock+0x36/0x1d0 [ 62.135302] ? free_one_page+0x9c4/0x1050 [ 62.139431] ? lock_downgrade+0x7f0/0x7f0 [ 62.143669] ? __this_cpu_preempt_check+0x13/0x20 [ 62.148505] ? do_raw_spin_unlock+0x16a/0x250 [ 62.152991] rtnl_newlink+0xe0c/0x1390 [ 62.156870] ? rtnl_link_unregister+0x270/0x270 [ 62.161518] ? finish_task_switch+0x448/0x650 [ 62.165996] ? find_held_lock+0x36/0x1d0 [ 62.170043] ? __mutex_lock+0x8b7/0x14c0 [ 62.174082] ? lock_downgrade+0x7f0/0x7f0 [ 62.178212] ? do_raw_spin_unlock+0x16a/0x250 [ 62.182717] rtnetlink_rcv_msg+0x34f/0x9d0 [ 62.187029] ? rtnl_bridge_getlink+0x760/0x760 [ 62.191599] ? find_held_lock+0x36/0x1d0 [ 62.195644] netlink_rcv_skb+0x133/0x370 [ 62.199685] ? rtnl_bridge_getlink+0x760/0x760 [ 62.204256] ? netlink_ack+0xa00/0xa00 [ 62.208122] ? netlink_deliver_tap+0x8e/0x920 [ 62.212612] rtnetlink_rcv+0x10/0x20 [ 62.216316] netlink_unicast+0x40d/0x5f0 [ 62.220371] ? netlink_attachskb+0x6e0/0x6e0 [ 62.224758] netlink_sendmsg+0x730/0xbd0 [ 62.228814] ? netlink_unicast+0x5f0/0x5f0 [ 62.233028] ? selinux_socket_sendmsg+0x31/0x40 [ 62.237678] ? security_socket_sendmsg+0x6a/0xa0 [ 62.242419] ? netlink_unicast+0x5f0/0x5f0 [ 62.246630] sock_sendmsg+0xb5/0xf0 [ 62.250232] ___sys_sendmsg+0x625/0x920 [ 62.254191] ? trace_hardirqs_off+0x10/0x10 [ 62.258496] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 62.263231] ? find_held_lock+0x36/0x1d0 [ 62.267272] ? lock_downgrade+0x7f0/0x7f0 [ 62.271418] ? __fget+0x1ca/0x2f0 [ 62.274854] ? __fget_light+0x166/0x200 [ 62.278809] ? __fdget+0xe/0x10 [ 62.282078] ? sockfd_lookup_light+0x1c/0x150 [ 62.286552] __sys_sendmsg+0xc1/0x140 [ 62.290338] ? SyS_shutdown+0x180/0x180 [ 62.294308] ? __sb_end_write+0xa4/0xd0 [ 62.298272] ? mutex_unlock+0xd/0x10 [ 62.301983] ? do_syscall_64+0x4c/0x5b0 [ 62.305950] ? __sys_sendmsg+0x140/0x140 [ 62.310080] SyS_sendmsg+0xd/0x20 [ 62.313535] do_syscall_64+0x1c7/0x5b0 [ 62.317505] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 62.322330] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 62.327503] RIP: 0033:0x459ef9 [ 62.330679] RSP: 002b:00007f2d8618bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 62.338366] RAX: ffffffffffffffda RBX: 00007f2d8618bc90 RCX: 0000000000459ef9 [ 62.345619] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 62.352876] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 62.360157] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d8618c6d4 [ 62.367416] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 62.384510] batman_adv: batadv0: Adding interface: veth1 [ 62.390346] batman_adv: batadv0: The MTU of interface veth1 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. [ 62.415566] batman_adv: batadv0: Interface activated: veth1 [ 62.427916] FAULT_INJECTION: forcing a failure. [ 62.427916] name failslab, interval 1, probability 0, space 0, times 0 [ 62.439390] CPU: 0 PID: 7156 Comm: syz-executor.0 Not tainted 4.14.173-syzkaller #0 [ 62.447192] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.456590] Call Trace: [ 62.459285] dump_stack+0xf7/0x13b [ 62.462815] should_fail.cold.3+0x105/0x14b [ 62.467157] should_failslab+0xba/0xf0 [ 62.471035] kmem_cache_alloc_node+0x56/0x790 [ 62.475523] __alloc_skb+0x92/0x500 [ 62.479138] ? skb_trim+0x160/0x160 [ 62.482757] ? call_fib6_notifiers+0x3c/0x60 [ 62.487160] inet6_rt_notify+0xe0/0x290 [ 62.491129] fib6_del+0x89d/0xd80 [ 62.494576] fib6_clean_node+0x1d8/0x3f0 [ 62.498622] ? fib6_del+0xd80/0xd80 [ 62.502252] ? trace_hardirqs_on_caller+0x19e/0x580 [ 62.507262] ? fib6_walker_link+0xe2/0x120 [ 62.511486] fib6_walk_continue+0x1bb/0x920 [ 62.515794] ? _raw_write_unlock_bh+0x30/0x40 [ 62.520271] fib6_walk+0x90/0xe0 [ 62.523635] fib6_clean_tree+0x8f/0xb0 [ 62.527518] ? fib6_walk+0xe0/0xe0 [ 62.531051] ? fib6_del+0xd80/0xd80 [ 62.534720] ? fib6_clean_tree+0xb0/0xb0 [ 62.538799] ? fib6_remove_prefsrc+0x250/0x250 [ 62.543362] ? _raw_write_lock_bh+0x39/0x40 [ 62.547663] ? __fib6_clean_all+0xc5/0x1d0 [ 62.551887] __fib6_clean_all+0xde/0x1d0 [ 62.555941] ? fib6_remove_prefsrc+0x250/0x250 [ 62.560514] fib6_clean_all+0xe/0x10 [ 62.564220] rt6_ifdown+0x80/0x560 [ 62.567744] ? __lock_acquire+0x6a4/0x4500 [ 62.572090] ? rt6_clean_tohost+0x20/0x20 [ 62.576236] addrconf_ifdown+0xbb/0x1330 [ 62.580291] ? trace_hardirqs_off+0x10/0x10 [ 62.584596] ? add_addr+0x150/0x150 [ 62.588227] addrconf_notify+0x555/0x1b10 [ 62.592402] ? lock_downgrade+0x7f0/0x7f0 [ 62.596544] ? inet6_ifinfo_notify+0x100/0x100 [ 62.601108] ? nfqnl_rcv_dev_event+0x227/0x3b0 [ 62.605713] notifier_call_chain+0xd6/0x150 [ 62.610020] raw_notifier_call_chain+0x11/0x20 [ 62.614585] call_netdevice_notifiers_info+0x4b/0x60 [ 62.619686] dev_close_many+0x29b/0x610 [ 62.623763] ? list_netdevice+0x4b0/0x4b0 [ 62.627899] ? mark_held_locks+0xc7/0x130 [ 62.632036] ? dev_mc_unsync+0x165/0x1a5 [ 62.636201] dev_close.part.89+0xe5/0x190 [ 62.640336] ? dev_close_many+0x610/0x610 [ 62.644524] ? dev_mc_unsync+0x165/0x1a5 [ 62.648574] ? __local_bh_enable_ip+0x9c/0x180 [ 62.653153] ? _raw_spin_unlock_bh+0x30/0x40 [ 62.657556] dev_close+0x40/0x50 [ 62.660910] team_port_del+0x2c0/0x770 [ 62.664799] team_del_slave+0x34/0x70 [ 62.668587] do_set_master+0xb6/0x1f0 [ 62.672383] do_setlink+0x9dd/0x2c50 [ 62.676088] ? rtnl_register+0x20/0x20 [ 62.679963] ? __lock_acquire+0x6a4/0x4500 [ 62.684210] ? trace_hardirqs_off+0x10/0x10 [ 62.688514] ? trace_hardirqs_off+0x10/0x10 [ 62.692836] rtnl_newlink+0xe0c/0x1390 [ 62.696723] ? rtnl_newlink+0x6d0/0x1390 [ 62.700770] ? rtnl_link_unregister+0x270/0x270 [ 62.705425] ? finish_task_switch+0x178/0x650 [ 62.710162] ? finish_task_switch+0x14d/0x650 [ 62.714690] ? find_held_lock+0x36/0x1d0 [ 62.718774] ? __mutex_lock+0x8b7/0x14c0 [ 62.722822] ? lock_downgrade+0x7f0/0x7f0 [ 62.726978] ? do_raw_spin_unlock+0x16a/0x250 [ 62.731498] rtnetlink_rcv_msg+0x34f/0x9d0 [ 62.735730] ? rtnl_bridge_getlink+0x760/0x760 [ 62.740306] ? find_held_lock+0x36/0x1d0 [ 62.744362] netlink_rcv_skb+0x133/0x370 [ 62.748411] ? rtnl_bridge_getlink+0x760/0x760 [ 62.753018] ? netlink_ack+0xa00/0xa00 [ 62.756889] ? netlink_deliver_tap+0x8e/0x920 [ 62.761383] rtnetlink_rcv+0x10/0x20 [ 62.765079] netlink_unicast+0x40d/0x5f0 [ 62.769119] ? netlink_attachskb+0x6e0/0x6e0 [ 62.773514] netlink_sendmsg+0x730/0xbd0 [ 62.777563] ? netlink_unicast+0x5f0/0x5f0 [ 62.781787] ? selinux_socket_sendmsg+0x31/0x40 [ 62.786474] ? security_socket_sendmsg+0x6a/0xa0 [ 62.791225] ? netlink_unicast+0x5f0/0x5f0 [ 62.795463] sock_sendmsg+0xb5/0xf0 [ 62.799087] ___sys_sendmsg+0x625/0x920 [ 62.803046] ? trace_hardirqs_off+0x10/0x10 [ 62.807350] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 62.812091] ? find_held_lock+0x36/0x1d0 [ 62.816153] ? lock_downgrade+0x7f0/0x7f0 [ 62.820381] ? __fget+0x1ca/0x2f0 [ 62.823861] ? __fget_light+0x166/0x200 [ 62.827814] ? __fdget+0xe/0x10 [ 62.831117] ? sockfd_lookup_light+0x1c/0x150 [ 62.835596] __sys_sendmsg+0xc1/0x140 [ 62.839399] ? SyS_shutdown+0x180/0x180 [ 62.843352] ? __sb_end_write+0xa4/0xd0 [ 62.847310] ? mutex_unlock+0xd/0x10 [ 62.851015] ? do_syscall_64+0x4c/0x5b0 [ 62.854982] ? __sys_sendmsg+0x140/0x140 [ 62.859038] SyS_sendmsg+0xd/0x20 [ 62.862473] do_syscall_64+0x1c7/0x5b0 [ 62.866435] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 62.871422] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 62.876604] RIP: 0033:0x459ef9 [ 62.879777] RSP: 002b:00007f666a648c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 62.887461] RAX: ffffffffffffffda RBX: 00007f666a648c90 RCX: 0000000000459ef9 [ 62.894711] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 62.901964] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 62.909266] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f666a6496d4 [ 62.916522] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 62.927219] team0: Port device team_slave_1 removed [ 62.933366] batman_adv: batadv0: Adding interface: team_slave_1 [ 62.939551] batman_adv: batadv0: The MTU of interface team_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. [ 62.965222] batman_adv: batadv0: Not using interface team_slave_1 (retrying later): interface not active [ 62.976800] FAULT_INJECTION: forcing a failure. [ 62.976800] name failslab, interval 1, probability 0, space 0, times 0 [ 62.977623] syz-executor.0 (7156) used greatest stack depth: 23288 bytes left [ 63.023161] CPU: 1 PID: 7167 Comm: syz-executor.2 Not tainted 4.14.173-syzkaller #0 [ 63.030993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.040611] Call Trace: [ 63.043180] dump_stack+0xf7/0x13b [ 63.046703] should_fail.cold.3+0x105/0x14b [ 63.051160] should_failslab+0xba/0xf0 [ 63.055045] kmem_cache_alloc+0x2cf/0x790 [ 63.059194] ? memcpy+0x45/0x50 [ 63.062461] ? kstrdup+0x42/0x60 [ 63.065945] __kernfs_new_node+0x63/0x470 [ 63.070080] ? lock_downgrade+0x7f0/0x7f0 [ 63.074214] kernfs_new_node+0x5e/0xe0 [ 63.078174] kernfs_create_link+0x25/0x130 [ 63.082390] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 63.087566] sysfs_create_link+0x43/0xb0 [ 63.091623] netdev_adjacent_sysfs_add+0x94/0xb0 [ 63.096375] ? napi_disable+0x80/0x80 [ 63.100179] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 63.105377] __netdev_upper_dev_link+0x174/0x1f0 [ 63.110115] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 63.114959] netdev_master_upper_dev_link+0x14/0x20 [ 63.119966] batadv_hardif_enable_interface+0x1af/0x990 [ 63.125532] batadv_softif_slave_add+0x82/0xe0 [ 63.134189] do_set_master+0x163/0x1f0 [ 63.138245] do_setlink+0x9dd/0x2c50 [ 63.141963] ? trace_hardirqs_on+0x10/0x10 [ 63.146339] ? find_held_lock+0x36/0x1d0 [ 63.150463] ? trace_hardirqs_off+0x10/0x10 [ 63.154778] ? rtnl_register+0x20/0x20 [ 63.158659] ? find_held_lock+0x36/0x1d0 [ 63.162759] ? __lock_acquire+0x6a4/0x4500 [ 63.167168] ? trace_hardirqs_off+0x10/0x10 [ 63.171473] ? trace_hardirqs_off+0x10/0x10 [ 63.175816] ? __lock_is_held+0xb5/0x140 [ 63.180297] ? trace_hardirqs_off+0x10/0x10 [ 63.184611] rtnl_newlink+0xe0c/0x1390 [ 63.188509] ? rtnl_link_unregister+0x270/0x270 [ 63.193273] ? finish_task_switch+0x178/0x650 [ 63.197748] ? finish_task_switch+0x14d/0x650 [ 63.202313] ? find_held_lock+0x36/0x1d0 [ 63.206462] ? __mutex_lock+0x8b7/0x14c0 [ 63.210595] ? lock_downgrade+0x7f0/0x7f0 [ 63.215105] ? do_raw_spin_unlock+0x16a/0x250 [ 63.219686] rtnetlink_rcv_msg+0x34f/0x9d0 [ 63.223912] ? rtnl_bridge_getlink+0x760/0x760 [ 63.228742] ? find_held_lock+0x36/0x1d0 [ 63.232877] netlink_rcv_skb+0x133/0x370 [ 63.236935] ? rtnl_bridge_getlink+0x760/0x760 [ 63.241508] ? netlink_ack+0xa00/0xa00 [ 63.245387] ? netlink_deliver_tap+0x8e/0x920 [ 63.249867] rtnetlink_rcv+0x10/0x20 [ 63.253560] netlink_unicast+0x40d/0x5f0 [ 63.258049] ? netlink_attachskb+0x6e0/0x6e0 [ 63.262447] netlink_sendmsg+0x730/0xbd0 [ 63.266507] ? netlink_unicast+0x5f0/0x5f0 [ 63.270719] ? selinux_socket_sendmsg+0x31/0x40 [ 63.275375] ? security_socket_sendmsg+0x6a/0xa0 [ 63.281162] ? netlink_unicast+0x5f0/0x5f0 [ 63.285410] sock_sendmsg+0xb5/0xf0 [ 63.289131] ___sys_sendmsg+0x625/0x920 [ 63.293094] ? trace_hardirqs_off+0x10/0x10 [ 63.297414] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 63.302532] ? find_held_lock+0x36/0x1d0 [ 63.306588] ? lock_downgrade+0x7f0/0x7f0 [ 63.310772] ? __fget+0x1ca/0x2f0 [ 63.314242] ? __fget_light+0x166/0x200 [ 63.318205] ? __fdget+0xe/0x10 [ 63.321469] ? sockfd_lookup_light+0x1c/0x150 [ 63.325980] __sys_sendmsg+0xc1/0x140 [ 63.329895] ? SyS_shutdown+0x180/0x180 [ 63.333862] ? __sb_end_write+0xa4/0xd0 [ 63.338001] ? mutex_unlock+0xd/0x10 [ 63.341705] ? do_syscall_64+0x4c/0x5b0 [ 63.345761] ? __sys_sendmsg+0x140/0x140 [ 63.349822] SyS_sendmsg+0xd/0x20 [ 63.353281] do_syscall_64+0x1c7/0x5b0 [ 63.357191] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 63.362141] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 63.367539] RIP: 0033:0x459ef9 [ 63.370807] RSP: 002b:00007fa8a10f3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 63.378581] RAX: ffffffffffffffda RBX: 00007fa8a10f3c90 RCX: 0000000000459ef9 [ 63.385926] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 63.393184] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 63.400643] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8a10f46d4 [ 63.410041] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 63.421260] device bridge_slave_0 left promiscuous mode [ 63.426802] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.433469] FAULT_INJECTION: forcing a failure. [ 63.433469] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 63.445685] CPU: 1 PID: 7168 Comm: syz-executor.4 Not tainted 4.14.173-syzkaller #0 [ 63.453685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.463051] Call Trace: [ 63.465657] dump_stack+0xf7/0x13b [ 63.469293] should_fail.cold.3+0x105/0x14b [ 63.473628] __alloc_pages_nodemask+0x1d5/0x770 [ 63.478371] ? __alloc_pages_slowpath+0x2650/0x2650 [ 63.484028] ? kernel_text_address+0x79/0xf0 [ 63.488438] ? __unwind_start+0x1f6/0x410 [ 63.492604] ? __kernel_text_address+0xd/0x40 [ 63.497239] alloc_pages_current+0xd6/0x1b0 [ 63.501551] depot_save_stack+0x406/0x43a [ 63.505697] save_stack+0xa9/0xd0 [ 63.509134] ? save_stack_trace+0x16/0x20 [ 63.513280] ? save_stack+0x43/0xd0 [ 63.517229] ? kasan_kmalloc+0xc7/0xe0 [ 63.521116] ? __kmalloc_node_track_caller+0x50/0x70 [ 63.526215] ? __kmalloc_reserve.isra.36+0x2c/0xc0 [ 63.531134] ? __alloc_skb+0xc1/0x500 [ 63.534924] ? br_ifinfo_notify.part.21+0x89/0x160 [ 63.539842] ? br_ifinfo_notify+0xe/0x20 [ 63.543892] ? br_stp_disable_port+0xbb/0x150 [ 63.548368] ? del_nbp+0x119/0x8b0 [ 63.551891] ? br_del_if+0xc7/0x470 [ 63.555623] ? br_del_slave+0x10/0x20 [ 63.559518] ? do_set_master+0xb6/0x1f0 [ 63.563510] ? do_setlink+0x9dd/0x2c50 [ 63.567390] ? rtnl_newlink+0xe0c/0x1390 [ 63.571709] ? rtnetlink_rcv_msg+0x34f/0x9d0 [ 63.577281] ? netlink_rcv_skb+0x133/0x370 [ 63.581511] ? rtnetlink_rcv+0x10/0x20 [ 63.585390] ? netlink_unicast+0x40d/0x5f0 [ 63.589626] ? netlink_sendmsg+0x730/0xbd0 [ 63.593959] ? sock_sendmsg+0xb5/0xf0 [ 63.597839] ? ___sys_sendmsg+0x625/0x920 [ 63.601987] ? __sys_sendmsg+0xc1/0x140 [ 63.606034] ? SyS_sendmsg+0xd/0x20 [ 63.609678] ? do_syscall_64+0x1c7/0x5b0 [ 63.613721] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 63.619082] ? vprintk_emit+0x1ab/0x4e0 [ 63.623197] ? __lock_is_held+0xb5/0x140 [ 63.627341] ? __kmalloc_node_track_caller+0x3c/0x70 [ 63.632445] ? rcu_read_lock_sched_held+0x108/0x120 [ 63.637452] ? kmem_cache_alloc_node_trace+0x373/0x780 [ 63.642836] ? kasan_unpoison_shadow+0x35/0x50 [ 63.647451] kasan_kmalloc+0xc7/0xe0 [ 63.651249] __kmalloc_node_track_caller+0x50/0x70 [ 63.656612] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 63.661362] __alloc_skb+0xc1/0x500 [ 63.665248] ? skb_trim+0x160/0x160 [ 63.668872] ? br_get_link_af_size_filtered+0xd2/0x6e0 [ 63.675216] br_ifinfo_notify.part.21+0x89/0x160 [ 63.680030] br_ifinfo_notify+0xe/0x20 [ 63.683913] br_stp_disable_port+0xbb/0x150 [ 63.688241] del_nbp+0x119/0x8b0 [ 63.691919] br_del_if+0xc7/0x470 [ 63.695380] br_del_slave+0x10/0x20 [ 63.699092] do_set_master+0xb6/0x1f0 [ 63.703131] do_setlink+0x9dd/0x2c50 [ 63.706834] ? rtnl_register+0x20/0x20 [ 63.710721] ? __lock_acquire+0x6a4/0x4500 [ 63.715011] ? __lock_acquire+0x6a4/0x4500 [ 63.719360] ? __lock_acquire+0x6a4/0x4500 [ 63.723925] ? trace_hardirqs_on+0x10/0x10 [ 63.728255] ? trace_hardirqs_off+0x10/0x10 [ 63.732583] ? __lock_acquire+0x6a4/0x4500 [ 63.736907] rtnl_newlink+0xe0c/0x1390 [ 63.741047] ? trace_hardirqs_off+0x10/0x10 [ 63.745370] ? memset+0x31/0x40 [ 63.748639] ? rtnl_newlink+0x6d0/0x1390 [ 63.752704] ? rtnl_link_unregister+0x270/0x270 [ 63.757463] ? finish_task_switch+0x178/0x650 [ 63.762146] ? finish_task_switch+0x14d/0x650 [ 63.767087] ? find_held_lock+0x36/0x1d0 [ 63.771683] ? __mutex_lock+0x8b7/0x14c0 [ 63.775796] ? lock_downgrade+0x7f0/0x7f0 [ 63.780182] ? do_raw_spin_unlock+0x16a/0x250 [ 63.785656] rtnetlink_rcv_msg+0x34f/0x9d0 [ 63.789878] ? rtnl_bridge_getlink+0x760/0x760 [ 63.794451] ? find_held_lock+0x36/0x1d0 [ 63.798511] netlink_rcv_skb+0x133/0x370 [ 63.802620] ? rtnl_bridge_getlink+0x760/0x760 [ 63.807318] ? netlink_ack+0xa00/0xa00 [ 63.811427] ? netlink_deliver_tap+0x8e/0x920 [ 63.815948] rtnetlink_rcv+0x10/0x20 [ 63.819905] netlink_unicast+0x40d/0x5f0 [ 63.823971] ? netlink_attachskb+0x6e0/0x6e0 [ 63.828380] netlink_sendmsg+0x730/0xbd0 [ 63.832442] ? netlink_unicast+0x5f0/0x5f0 [ 63.836675] ? selinux_socket_sendmsg+0x31/0x40 [ 63.841337] ? security_socket_sendmsg+0x6a/0xa0 [ 63.846118] ? netlink_unicast+0x5f0/0x5f0 [ 63.850349] sock_sendmsg+0xb5/0xf0 [ 63.853982] ___sys_sendmsg+0x625/0x920 [ 63.858070] ? trace_hardirqs_off+0x10/0x10 [ 63.862388] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 63.867159] ? find_held_lock+0x36/0x1d0 [ 63.871288] ? lock_downgrade+0x7f0/0x7f0 [ 63.875436] ? __fget+0x1ca/0x2f0 [ 63.880103] ? __fget_light+0x166/0x200 [ 63.884111] ? __fdget+0xe/0x10 [ 63.887994] ? sockfd_lookup_light+0x1c/0x150 [ 63.892594] __sys_sendmsg+0xc1/0x140 [ 63.896990] ? SyS_shutdown+0x180/0x180 [ 63.900974] ? __sb_end_write+0xa4/0xd0 [ 63.905048] ? mutex_unlock+0xd/0x10 [ 63.908839] ? do_syscall_64+0x4c/0x5b0 [ 63.912824] ? __sys_sendmsg+0x140/0x140 [ 63.916882] SyS_sendmsg+0xd/0x20 [ 63.920337] do_syscall_64+0x1c7/0x5b0 [ 63.924281] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 63.929361] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 63.934768] RIP: 0033:0x459ef9 [ 63.937947] RSP: 002b:00007fd91524ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 63.945647] RAX: ffffffffffffffda RBX: 00007fd91524ec90 RCX: 0000000000459ef9 [ 63.952919] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 63.960337] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 63.967736] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91524f6d4 [ 63.976168] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 64.031128] batman_adv: batadv0: Adding interface: bridge_slave_0 [ 64.041621] batman_adv: batadv0: The MTU of interface bridge_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. [ 64.066932] batman_adv: batadv0: Interface activated: bridge_slave_0 [ 64.074481] device bridge_slave_0 left promiscuous mode [ 64.080571] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.087042] FAULT_INJECTION: forcing a failure. [ 64.087042] name failslab, interval 1, probability 0, space 0, times 0 [ 64.099585] CPU: 1 PID: 7171 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0 [ 64.108619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.118198] Call Trace: [ 64.120878] dump_stack+0xf7/0x13b [ 64.124419] should_fail.cold.3+0x105/0x14b [ 64.128867] should_failslab+0xba/0xf0 [ 64.132870] kmem_cache_alloc_node+0x56/0x790 [ 64.137365] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 64.142510] __alloc_skb+0x92/0x500 [ 64.146124] ? skb_trim+0x160/0x160 [ 64.149735] ? br_switchdev_set_port_flag+0x1e0/0x1e0 [ 64.154943] ? __lock_is_held+0xb5/0x140 [ 64.159078] fdb_notify+0x88/0x130 [ 64.162627] fdb_delete+0x129/0x3a0 [ 64.166261] br_fdb_delete_by_port+0x163/0x1d0 [ 64.170840] br_stp_disable_port+0xeb/0x150 [ 64.175474] del_nbp+0x119/0x8b0 [ 64.178827] br_del_if+0xc7/0x470 [ 64.182267] br_del_slave+0x10/0x20 [ 64.185895] do_set_master+0xb6/0x1f0 [ 64.189773] do_setlink+0x9dd/0x2c50 [ 64.193476] ? rtnl_register+0x20/0x20 [ 64.197352] ? trace_hardirqs_off+0x10/0x10 [ 64.201671] ? __lock_acquire+0x6a4/0x4500 [ 64.205988] ? trace_hardirqs_off+0x10/0x10 [ 64.210310] ? __lock_acquire+0x6a4/0x4500 [ 64.214544] ? trace_hardirqs_on+0x10/0x10 [ 64.218914] ? __lock_acquire+0x6a4/0x4500 [ 64.223217] ? trace_hardirqs_off+0x10/0x10 [ 64.227550] rtnl_newlink+0xe0c/0x1390 [ 64.231456] ? trace_hardirqs_off+0x10/0x10 [ 64.235944] ? trace_hardirqs_off+0x10/0x10 [ 64.240365] ? memset+0x31/0x40 [ 64.243639] ? rtnl_newlink+0x6d0/0x1390 [ 64.247702] ? rtnl_link_unregister+0x270/0x270 [ 64.252373] ? finish_task_switch+0x178/0x650 [ 64.256864] ? finish_task_switch+0x14d/0x650 [ 64.261350] ? find_held_lock+0x36/0x1d0 [ 64.265400] ? __mutex_lock+0x8b7/0x14c0 [ 64.269454] ? lock_downgrade+0x7f0/0x7f0 [ 64.273694] ? do_raw_spin_unlock+0x16a/0x250 [ 64.278198] rtnetlink_rcv_msg+0x34f/0x9d0 [ 64.282505] ? rtnl_bridge_getlink+0x760/0x760 [ 64.287072] ? find_held_lock+0x36/0x1d0 [ 64.291128] netlink_rcv_skb+0x133/0x370 [ 64.295177] ? rtnl_bridge_getlink+0x760/0x760 [ 64.299756] ? netlink_ack+0xa00/0xa00 [ 64.303636] ? netlink_deliver_tap+0x8e/0x920 [ 64.308116] rtnetlink_rcv+0x10/0x20 [ 64.311816] netlink_unicast+0x40d/0x5f0 [ 64.315862] ? netlink_attachskb+0x6e0/0x6e0 [ 64.320337] netlink_sendmsg+0x730/0xbd0 [ 64.324376] ? netlink_unicast+0x5f0/0x5f0 [ 64.328621] ? selinux_socket_sendmsg+0x31/0x40 [ 64.333878] ? security_socket_sendmsg+0x6a/0xa0 [ 64.338616] ? netlink_unicast+0x5f0/0x5f0 [ 64.342831] sock_sendmsg+0xb5/0xf0 [ 64.346439] ___sys_sendmsg+0x625/0x920 [ 64.350399] ? trace_hardirqs_off+0x10/0x10 [ 64.354709] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 64.359448] ? find_held_lock+0x36/0x1d0 [ 64.363490] ? lock_downgrade+0x7f0/0x7f0 [ 64.367712] ? __fget+0x1ca/0x2f0 [ 64.371153] ? __fget_light+0x166/0x200 [ 64.375133] ? __fdget+0xe/0x10 [ 64.378392] ? sockfd_lookup_light+0x1c/0x150 [ 64.382866] __sys_sendmsg+0xc1/0x140 [ 64.386644] ? SyS_shutdown+0x180/0x180 [ 64.390610] ? __sb_end_write+0xa4/0xd0 [ 64.394582] ? mutex_unlock+0xd/0x10 [ 64.398306] ? do_syscall_64+0x4c/0x5b0 [ 64.402264] ? __sys_sendmsg+0x140/0x140 [ 64.406328] SyS_sendmsg+0xd/0x20 [ 64.409766] do_syscall_64+0x1c7/0x5b0 [ 64.413634] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 64.418466] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 64.423635] RIP: 0033:0x459ef9 [ 64.426823] RSP: 002b:00007f2d8618bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 64.434543] RAX: ffffffffffffffda RBX: 00007f2d8618bc90 RCX: 0000000000459ef9 [ 64.442050] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 64.449318] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 64.456573] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d8618c6d4 [ 64.464093] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 64.511609] batman_adv: batadv0: Adding interface: bridge_slave_0 [ 64.517980] batman_adv: batadv0: The MTU of interface bridge_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. [ 64.543258] batman_adv: batadv0: Interface activated: bridge_slave_0 [ 64.551132] FAULT_INJECTION: forcing a failure. 2020/03/12 23:44:44 executed programs: 83 [ 64.551132] name failslab, interval 1, probability 0, space 0, times 0 [ 64.579026] CPU: 0 PID: 7175 Comm: syz-executor.0 Not tainted 4.14.173-syzkaller #0 [ 64.587026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.596367] Call Trace: [ 64.598976] dump_stack+0xf7/0x13b [ 64.602500] should_fail.cold.3+0x105/0x14b [ 64.606828] should_failslab+0xba/0xf0 [ 64.610706] kmem_cache_alloc_node+0x287/0x790 [ 64.615285] __alloc_skb+0x92/0x500 [ 64.618892] ? skb_trim+0x160/0x160 [ 64.622498] ? if_nlmsg_size+0x2d9/0x6f0 [ 64.626552] rtmsg_ifinfo_build_skb+0x68/0x120 [ 64.631111] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 64.635937] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 64.640852] rtnetlink_event+0xc2/0x110 [ 64.644831] notifier_call_chain+0xd6/0x150 [ 64.649934] raw_notifier_call_chain+0x11/0x20 [ 64.654493] call_netdevice_notifiers_info+0x4b/0x60 [ 64.659575] __netdev_upper_dev_link+0x18e/0x1f0 [ 64.664472] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 64.669237] netdev_master_upper_dev_link+0x14/0x20 [ 64.674672] batadv_hardif_enable_interface+0x1af/0x990 [ 64.680025] batadv_softif_slave_add+0x82/0xe0 [ 64.684594] do_set_master+0x163/0x1f0 [ 64.688475] do_setlink+0x9dd/0x2c50 [ 64.692169] ? find_held_lock+0x36/0x1d0 [ 64.696219] ? rtnl_register+0x20/0x20 [ 64.700105] ? load_balance+0xb38/0x2190 [ 64.704145] ? lock_downgrade+0x7f0/0x7f0 [ 64.708270] ? lock_pin_lock+0x340/0x340 [ 64.712333] ? __lock_acquire+0x6a4/0x4500 [ 64.716547] ? trace_hardirqs_off+0x10/0x10 [ 64.720859] ? __lock_is_held+0xb5/0x140 [ 64.724911] ? trace_hardirqs_off+0x10/0x10 [ 64.729230] rtnl_newlink+0xe0c/0x1390 [ 64.733123] ? rtnl_link_unregister+0x270/0x270 [ 64.737774] ? finish_task_switch+0x178/0x650 [ 64.742258] ? finish_task_switch+0x14d/0x650 [ 64.746736] ? find_held_lock+0x36/0x1d0 [ 64.750778] ? __mutex_lock+0x8b7/0x14c0 [ 64.754818] ? lock_downgrade+0x7f0/0x7f0 [ 64.758956] ? do_raw_spin_unlock+0x16a/0x250 [ 64.763461] rtnetlink_rcv_msg+0x34f/0x9d0 [ 64.767694] ? rtnl_bridge_getlink+0x760/0x760 [ 64.772263] ? find_held_lock+0x36/0x1d0 [ 64.776306] netlink_rcv_skb+0x133/0x370 [ 64.780365] ? rtnl_bridge_getlink+0x760/0x760 [ 64.784937] ? netlink_ack+0xa00/0xa00 [ 64.788811] ? netlink_deliver_tap+0x8e/0x920 [ 64.793287] rtnetlink_rcv+0x10/0x20 [ 64.796982] netlink_unicast+0x40d/0x5f0 [ 64.801031] ? netlink_attachskb+0x6e0/0x6e0 [ 64.805436] netlink_sendmsg+0x730/0xbd0 [ 64.809476] ? netlink_unicast+0x5f0/0x5f0 [ 64.813690] ? selinux_socket_sendmsg+0x31/0x40 [ 64.818350] ? security_socket_sendmsg+0x6a/0xa0 [ 64.823084] ? netlink_unicast+0x5f0/0x5f0 [ 64.827297] sock_sendmsg+0xb5/0xf0 [ 64.830902] ___sys_sendmsg+0x625/0x920 [ 64.834875] ? trace_hardirqs_off+0x10/0x10 [ 64.839175] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 64.843909] ? find_held_lock+0x36/0x1d0 [ 64.847954] ? lock_downgrade+0x7f0/0x7f0 [ 64.852081] ? __fget+0x1ca/0x2f0 [ 64.855518] ? __fget_light+0x166/0x200 [ 64.859482] ? __fdget+0xe/0x10 [ 64.862745] ? sockfd_lookup_light+0x1c/0x150 [ 64.867221] __sys_sendmsg+0xc1/0x140 [ 64.871006] ? SyS_shutdown+0x180/0x180 [ 64.874969] ? __sb_end_write+0xa4/0xd0 [ 64.878931] ? mutex_unlock+0xd/0x10 [ 64.882637] ? do_syscall_64+0x4c/0x5b0 [ 64.886608] ? __sys_sendmsg+0x140/0x140 [ 64.890650] SyS_sendmsg+0xd/0x20 [ 64.894172] do_syscall_64+0x1c7/0x5b0 [ 64.898069] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 64.903613] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 64.908787] RIP: 0033:0x459ef9 [ 64.912566] RSP: 002b:00007f666a648c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 64.920397] RAX: ffffffffffffffda RBX: 00007f666a648c90 RCX: 0000000000459ef9 [ 64.927830] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 64.936889] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 64.944762] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f666a6496d4 [ 64.952100] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 64.961595] batman_adv: batadv0: Adding interface: hsr_slave_0 [ 64.967654] batman_adv: batadv0: The MTU of interface hsr_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. [ 64.992654] batman_adv: batadv0: Interface activated: hsr_slave_0 [ 64.999420] FAULT_INJECTION: forcing a failure. [ 64.999420] name failslab, interval 1, probability 0, space 0, times 0 [ 65.017467] CPU: 1 PID: 7174 Comm: syz-executor.1 Not tainted 4.14.173-syzkaller #0 [ 65.025890] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.035240] Call Trace: [ 65.037825] dump_stack+0xf7/0x13b [ 65.041373] should_fail.cold.3+0x105/0x14b [ 65.045677] should_failslab+0xba/0xf0 [ 65.049544] kmem_cache_alloc+0x2cf/0x790 [ 65.053697] ? memcpy+0x45/0x50 [ 65.056956] ? kstrdup+0x42/0x60 [ 65.060305] __kernfs_new_node+0x63/0x470 [ 65.064450] ? lock_downgrade+0x7f0/0x7f0 [ 65.068591] kernfs_new_node+0x5e/0xe0 [ 65.072461] kernfs_create_link+0x25/0x130 [ 65.076789] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 65.081975] sysfs_create_link+0x43/0xb0 [ 65.086024] netdev_adjacent_sysfs_add+0x94/0xb0 [ 65.090765] ? napi_disable+0x80/0x80 [ 65.094555] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 65.099734] __netdev_upper_dev_link+0x174/0x1f0 [ 65.104482] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 65.109244] netdev_master_upper_dev_link+0x14/0x20 [ 65.114249] batadv_hardif_enable_interface+0x1af/0x990 [ 65.119628] batadv_softif_slave_add+0x82/0xe0 [ 65.124202] do_set_master+0x163/0x1f0 [ 65.128097] do_setlink+0x9dd/0x2c50 [ 65.131795] ? find_held_lock+0x36/0x1d0 [ 65.135848] ? rtnl_register+0x20/0x20 [ 65.139716] ? load_balance+0xb38/0x2190 [ 65.143764] ? lock_downgrade+0x7f0/0x7f0 [ 65.147896] ? lock_pin_lock+0x340/0x340 [ 65.151962] ? __lock_acquire+0x6a4/0x4500 [ 65.156188] ? trace_hardirqs_off+0x10/0x10 [ 65.160576] ? __lock_is_held+0xb5/0x140 [ 65.164618] ? trace_hardirqs_off+0x10/0x10 [ 65.168959] rtnl_newlink+0xe0c/0x1390 [ 65.172842] ? rtnl_link_unregister+0x270/0x270 [ 65.177497] ? finish_task_switch+0x178/0x650 [ 65.181978] ? finish_task_switch+0x14d/0x650 [ 65.186451] ? find_held_lock+0x36/0x1d0 [ 65.190493] ? __mutex_lock+0x8b7/0x14c0 [ 65.194533] ? lock_downgrade+0x7f0/0x7f0 [ 65.202230] ? do_raw_spin_unlock+0x16a/0x250 [ 65.206725] rtnetlink_rcv_msg+0x34f/0x9d0 [ 65.210969] ? rtnl_bridge_getlink+0x760/0x760 [ 65.215540] ? find_held_lock+0x36/0x1d0 [ 65.219589] netlink_rcv_skb+0x133/0x370 [ 65.223642] ? rtnl_bridge_getlink+0x760/0x760 [ 65.228210] ? netlink_ack+0xa00/0xa00 [ 65.232077] ? netlink_deliver_tap+0x8e/0x920 [ 65.236719] rtnetlink_rcv+0x10/0x20 [ 65.240427] netlink_unicast+0x40d/0x5f0 [ 65.244475] ? netlink_attachskb+0x6e0/0x6e0 [ 65.248865] netlink_sendmsg+0x730/0xbd0 [ 65.252915] ? netlink_unicast+0x5f0/0x5f0 [ 65.257132] ? selinux_socket_sendmsg+0x31/0x40 [ 65.261780] ? security_socket_sendmsg+0x6a/0xa0 [ 65.266517] ? netlink_unicast+0x5f0/0x5f0 [ 65.270789] sock_sendmsg+0xb5/0xf0 [ 65.274399] ___sys_sendmsg+0x625/0x920 [ 65.278482] ? trace_hardirqs_off+0x10/0x10 [ 65.282809] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 65.287561] ? find_held_lock+0x36/0x1d0 [ 65.291632] ? lock_downgrade+0x7f0/0x7f0 [ 65.295770] ? __fget+0x1ca/0x2f0 [ 65.299276] ? __fget_light+0x166/0x200 [ 65.303345] ? __fdget+0xe/0x10 [ 65.306613] ? sockfd_lookup_light+0x1c/0x150 [ 65.311111] __sys_sendmsg+0xc1/0x140 [ 65.314898] ? SyS_shutdown+0x180/0x180 [ 65.318863] ? __sb_end_write+0xa4/0xd0 [ 65.322843] ? mutex_unlock+0xd/0x10 [ 65.326539] ? do_syscall_64+0x4c/0x5b0 [ 65.330509] ? __sys_sendmsg+0x140/0x140 [ 65.334591] SyS_sendmsg+0xd/0x20 [ 65.338037] do_syscall_64+0x1c7/0x5b0 [ 65.341906] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 65.346733] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 65.352048] RIP: 0033:0x459ef9 [ 65.355220] RSP: 002b:00007f168d5e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 65.362913] RAX: ffffffffffffffda RBX: 00007f168d5e9c90 RCX: 0000000000459ef9 [ 65.370174] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 65.377445] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 65.384701] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f168d5ea6d4 [ 65.391970] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 65.401470] FAULT_INJECTION: forcing a failure. [ 65.401470] name failslab, interval 1, probability 0, space 0, times 0 [ 65.426031] CPU: 0 PID: 7180 Comm: syz-executor.5 Not tainted 4.14.173-syzkaller #0 [ 65.433963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.443305] Call Trace: [ 65.445971] dump_stack+0xf7/0x13b [ 65.449510] should_fail.cold.3+0x105/0x14b [ 65.453815] should_failslab+0xba/0xf0 [ 65.457772] kmem_cache_alloc_node+0x287/0x790 [ 65.462436] __alloc_skb+0x92/0x500 [ 65.466041] ? skb_trim+0x160/0x160 [ 65.469663] ? if_nlmsg_size+0x2d9/0x6f0 [ 65.473858] rtmsg_ifinfo_build_skb+0x68/0x120 [ 65.478435] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 65.483268] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 65.488182] rtnetlink_event+0xc2/0x110 [ 65.492140] notifier_call_chain+0xd6/0x150 [ 65.496455] raw_notifier_call_chain+0x11/0x20 [ 65.501024] call_netdevice_notifiers_info+0x4b/0x60 [ 65.506277] __netdev_upper_dev_link+0x18e/0x1f0 [ 65.511283] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 65.516039] netdev_master_upper_dev_link+0x14/0x20 [ 65.521127] batadv_hardif_enable_interface+0x1af/0x990 [ 65.526482] batadv_softif_slave_add+0x82/0xe0 [ 65.531049] do_set_master+0x163/0x1f0 [ 65.534924] do_setlink+0x9dd/0x2c50 [ 65.538711] ? find_held_lock+0x36/0x1d0 [ 65.543026] ? rtnl_register+0x20/0x20 [ 65.546891] ? load_balance+0xb38/0x2190 [ 65.550951] ? lock_downgrade+0x7f0/0x7f0 [ 65.555075] ? lock_pin_lock+0x340/0x340 [ 65.559116] ? __lock_acquire+0x6a4/0x4500 [ 65.563328] ? trace_hardirqs_off+0x10/0x10 [ 65.567636] ? __lock_is_held+0xb5/0x140 [ 65.571682] ? trace_hardirqs_off+0x10/0x10 [ 65.576039] ? trace_hardirqs_off+0x10/0x10 [ 65.580369] rtnl_newlink+0xe0c/0x1390 [ 65.584244] ? rtnl_link_unregister+0x270/0x270 [ 65.588894] ? finish_task_switch+0x178/0x650 [ 65.593371] ? finish_task_switch+0x14d/0x650 [ 65.597847] ? find_held_lock+0x36/0x1d0 [ 65.601903] ? __mutex_lock+0x8b7/0x14c0 [ 65.605961] ? lock_downgrade+0x7f0/0x7f0 [ 65.610093] ? do_raw_spin_unlock+0x16a/0x250 [ 65.614600] rtnetlink_rcv_msg+0x34f/0x9d0 [ 65.618945] ? rtnl_bridge_getlink+0x760/0x760 [ 65.623517] ? find_held_lock+0x36/0x1d0 [ 65.627707] netlink_rcv_skb+0x133/0x370 [ 65.631779] ? rtnl_bridge_getlink+0x760/0x760 [ 65.636363] ? netlink_ack+0xa00/0xa00 [ 65.640245] ? netlink_deliver_tap+0x8e/0x920 [ 65.644732] rtnetlink_rcv+0x10/0x20 [ 65.648443] netlink_unicast+0x40d/0x5f0 [ 65.652492] ? netlink_attachskb+0x6e0/0x6e0 [ 65.657000] netlink_sendmsg+0x730/0xbd0 [ 65.661056] ? netlink_unicast+0x5f0/0x5f0 [ 65.665279] ? selinux_socket_sendmsg+0x31/0x40 [ 65.669958] ? security_socket_sendmsg+0x6a/0xa0 [ 65.674722] ? netlink_unicast+0x5f0/0x5f0 [ 65.678950] sock_sendmsg+0xb5/0xf0 [ 65.682556] ___sys_sendmsg+0x625/0x920 [ 65.686525] ? trace_hardirqs_off+0x10/0x10 [ 65.690838] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 65.695675] ? find_held_lock+0x36/0x1d0 [ 65.699721] ? lock_downgrade+0x7f0/0x7f0 [ 65.703880] ? __fget+0x1ca/0x2f0 [ 65.707333] ? __fget_light+0x166/0x200 [ 65.711286] ? __fdget+0xe/0x10 [ 65.714544] ? sockfd_lookup_light+0x1c/0x150 [ 65.719035] __sys_sendmsg+0xc1/0x140 [ 65.722827] ? SyS_shutdown+0x180/0x180 [ 65.726777] ? __sb_end_write+0xa4/0xd0 [ 65.730749] ? mutex_unlock+0xd/0x10 [ 65.734445] ? do_syscall_64+0x4c/0x5b0 [ 65.738423] ? __sys_sendmsg+0x140/0x140 [ 65.743817] SyS_sendmsg+0xd/0x20 [ 65.747252] do_syscall_64+0x1c7/0x5b0 [ 65.751323] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 65.756222] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 65.761393] RIP: 0033:0x459ef9 [ 65.764566] RSP: 002b:00007f5fa9badc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 65.772268] RAX: ffffffffffffffda RBX: 00007f5fa9badc90 RCX: 0000000000459ef9 [ 65.779635] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 65.786891] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 65.794326] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fa9bae6d4 [ 65.801663] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 65.811481] batman_adv: batadv0: Adding interface: veth1 [ 65.817062] batman_adv: batadv0: The MTU of interface veth1 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. [ 65.841501] batman_adv: batadv0: Interface activated: veth1 [ 65.847565] device bridge_slave_0 left promiscuous mode [ 65.860509] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.867024] FAULT_INJECTION: forcing a failure. [ 65.867024] name failslab, interval 1, probability 0, space 0, times 0 [ 65.878602] CPU: 0 PID: 7182 Comm: syz-executor.2 Not tainted 4.14.173-syzkaller #0 [ 65.886390] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.895734] Call Trace: [ 65.898314] dump_stack+0xf7/0x13b [ 65.901843] should_fail.cold.3+0x105/0x14b [ 65.906171] should_failslab+0xba/0xf0 [ 65.910050] kmem_cache_alloc_node_trace+0x5a/0x780 [ 65.915069] __kmalloc_node_track_caller+0x3c/0x70 [ 65.920004] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 65.924767] __alloc_skb+0xc1/0x500 [ 65.928394] ? skb_trim+0x160/0x160 [ 65.932087] ? br_switchdev_set_port_flag+0x1e0/0x1e0 [ 65.937261] ? __lock_is_held+0xb5/0x140 [ 65.941313] fdb_notify+0x88/0x130 [ 65.944843] fdb_delete+0x129/0x3a0 [ 65.948459] br_fdb_delete_by_port+0x163/0x1d0 [ 65.953044] br_stp_disable_port+0xeb/0x150 [ 65.957373] del_nbp+0x119/0x8b0 [ 65.960823] br_del_if+0xc7/0x470 [ 65.964269] br_del_slave+0x10/0x20 [ 65.967882] do_set_master+0xb6/0x1f0 [ 65.971670] do_setlink+0x9dd/0x2c50 [ 65.975372] ? trace_hardirqs_off+0x10/0x10 [ 65.979685] ? lock_downgrade+0x7f0/0x7f0 [ 65.983831] ? trace_hardirqs_off+0x10/0x10 [ 65.988239] ? rtnl_register+0x20/0x20 [ 65.992133] ? trace_hardirqs_off+0x10/0x10 [ 65.996437] ? __lock_is_held+0xb5/0x140 [ 66.000492] ? find_held_lock+0x36/0x1d0 [ 66.004562] ? __lock_acquire+0x6a4/0x4500 [ 66.008794] ? load_balance+0xb38/0x2190 [ 66.012847] ? lock_downgrade+0x7f0/0x7f0 [ 66.016978] ? lock_pin_lock+0x340/0x340 [ 66.021041] ? __lock_acquire+0x6a4/0x4500 [ 66.025263] ? trace_hardirqs_off+0x10/0x10 [ 66.029575] ? __lock_is_held+0xb5/0x140 [ 66.033633] rtnl_newlink+0xe0c/0x1390 [ 66.037499] ? trace_hardirqs_off+0x10/0x10 [ 66.041809] ? memset+0x31/0x40 [ 66.045089] ? rtnl_newlink+0x6d0/0x1390 [ 66.049134] ? rtnl_link_unregister+0x270/0x270 [ 66.053787] ? finish_task_switch+0x178/0x650 [ 66.058279] ? finish_task_switch+0x14d/0x650 [ 66.062767] ? find_held_lock+0x36/0x1d0 [ 66.066820] ? __mutex_lock+0x8b7/0x14c0 [ 66.070881] ? lock_downgrade+0x7f0/0x7f0 [ 66.075099] ? do_raw_spin_unlock+0x16a/0x250 [ 66.079686] rtnetlink_rcv_msg+0x34f/0x9d0 [ 66.083906] ? rtnl_bridge_getlink+0x760/0x760 [ 66.088487] ? find_held_lock+0x36/0x1d0 [ 66.092544] netlink_rcv_skb+0x133/0x370 [ 66.096600] ? rtnl_bridge_getlink+0x760/0x760 [ 66.101258] ? netlink_ack+0xa00/0xa00 [ 66.105141] ? netlink_deliver_tap+0x8e/0x920 [ 66.110081] rtnetlink_rcv+0x10/0x20 [ 66.113789] netlink_unicast+0x40d/0x5f0 [ 66.117843] ? netlink_attachskb+0x6e0/0x6e0 [ 66.122239] netlink_sendmsg+0x730/0xbd0 [ 66.126278] ? netlink_unicast+0x5f0/0x5f0 [ 66.130505] ? selinux_socket_sendmsg+0x31/0x40 [ 66.135241] ? security_socket_sendmsg+0x6a/0xa0 [ 66.139984] ? netlink_unicast+0x5f0/0x5f0 [ 66.144211] sock_sendmsg+0xb5/0xf0 [ 66.147845] ___sys_sendmsg+0x625/0x920 [ 66.151902] ? trace_hardirqs_off+0x10/0x10 [ 66.156394] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 66.161145] ? find_held_lock+0x36/0x1d0 [ 66.165198] ? lock_downgrade+0x7f0/0x7f0 [ 66.169340] ? __fget+0x1ca/0x2f0 [ 66.172773] ? __fget_light+0x166/0x200 [ 66.176726] ? __fdget+0xe/0x10 [ 66.179988] ? sockfd_lookup_light+0x1c/0x150 [ 66.184472] __sys_sendmsg+0xc1/0x140 [ 66.188350] ? SyS_shutdown+0x180/0x180 [ 66.192306] ? __sb_end_write+0xa4/0xd0 [ 66.196268] ? mutex_unlock+0xd/0x10 [ 66.199967] ? do_syscall_64+0x4c/0x5b0 [ 66.203925] ? __sys_sendmsg+0x140/0x140 [ 66.207980] SyS_sendmsg+0xd/0x20 [ 66.211441] do_syscall_64+0x1c7/0x5b0 [ 66.215316] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 66.220154] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 66.225343] RIP: 0033:0x459ef9 [ 66.228522] RSP: 002b:00007fa8a10f3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 66.236229] RAX: ffffffffffffffda RBX: 00007fa8a10f3c90 RCX: 0000000000459ef9 [ 66.243491] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 66.250750] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 66.258037] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8a10f46d4 [ 66.265293] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 66.291941] batman_adv: batadv0: Adding interface: bridge_slave_0 [ 66.298232] batman_adv: batadv0: The MTU of interface bridge_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. [ 66.323509] batman_adv: batadv0: Interface activated: bridge_slave_0 [ 66.330640] device bridge_slave_1 left promiscuous mode [ 66.336139] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.342534] FAULT_INJECTION: forcing a failure. [ 66.342534] name failslab, interval 1, probability 0, space 0, times 0 [ 66.353776] CPU: 0 PID: 7186 Comm: syz-executor.4 Not tainted 4.14.173-syzkaller #0 [ 66.361582] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.370942] Call Trace: [ 66.373531] dump_stack+0xf7/0x13b [ 66.377073] should_fail.cold.3+0x105/0x14b [ 66.381398] should_failslab+0xba/0xf0 [ 66.385288] kmem_cache_alloc_node_trace+0x5a/0x780 [ 66.390313] __kmalloc_node_track_caller+0x3c/0x70 [ 66.395240] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 66.399980] __alloc_skb+0xc1/0x500 [ 66.403595] ? skb_trim+0x160/0x160 [ 66.407206] ? br_get_link_af_size_filtered+0xd2/0x6e0 [ 66.412466] br_ifinfo_notify.part.21+0x89/0x160 [ 66.417205] br_ifinfo_notify+0xe/0x20 [ 66.421075] br_stp_disable_port+0xbb/0x150 [ 66.425399] del_nbp+0x119/0x8b0 [ 66.428754] br_del_if+0xc7/0x470 [ 66.432203] br_del_slave+0x10/0x20 [ 66.435821] do_set_master+0xb6/0x1f0 [ 66.439605] do_setlink+0x9dd/0x2c50 [ 66.443301] ? trace_hardirqs_off+0x10/0x10 [ 66.447611] ? lock_downgrade+0x7f0/0x7f0 [ 66.451755] ? rtnl_register+0x20/0x20 [ 66.455626] ? trace_hardirqs_off+0x10/0x10 [ 66.459937] ? find_held_lock+0x36/0x1d0 [ 66.463980] ? __lock_acquire+0x6a4/0x4500 [ 66.468205] ? load_balance+0xb38/0x2190 [ 66.472246] ? lock_downgrade+0x7f0/0x7f0 [ 66.476393] ? lock_pin_lock+0x340/0x340 [ 66.480456] ? __lock_acquire+0x6a4/0x4500 [ 66.484672] ? trace_hardirqs_off+0x10/0x10 [ 66.489018] ? __lock_is_held+0xb5/0x140 [ 66.493076] rtnl_newlink+0xe0c/0x1390 [ 66.496958] ? trace_hardirqs_off+0x10/0x10 [ 66.501279] ? memset+0x31/0x40 [ 66.504675] ? rtnl_newlink+0x6d0/0x1390 [ 66.508738] ? rtnl_link_unregister+0x270/0x270 [ 66.513406] ? finish_task_switch+0x178/0x650 [ 66.518068] ? finish_task_switch+0x14d/0x650 [ 66.523003] ? find_held_lock+0x36/0x1d0 [ 66.527091] ? __mutex_lock+0x8b7/0x14c0 [ 66.531336] ? lock_downgrade+0x7f0/0x7f0 [ 66.535692] ? do_raw_spin_unlock+0x16a/0x250 [ 66.540219] rtnetlink_rcv_msg+0x34f/0x9d0 [ 66.544450] ? rtnl_bridge_getlink+0x760/0x760 [ 66.549030] ? find_held_lock+0x36/0x1d0 [ 66.553083] netlink_rcv_skb+0x133/0x370 [ 66.557138] ? rtnl_bridge_getlink+0x760/0x760 [ 66.561718] ? netlink_ack+0xa00/0xa00 [ 66.565637] ? netlink_deliver_tap+0x8e/0x920 [ 66.570151] rtnetlink_rcv+0x10/0x20 [ 66.573855] netlink_unicast+0x40d/0x5f0 [ 66.577911] ? netlink_attachskb+0x6e0/0x6e0 [ 66.582402] netlink_sendmsg+0x730/0xbd0 [ 66.586569] ? netlink_unicast+0x5f0/0x5f0 [ 66.590825] ? selinux_socket_sendmsg+0x31/0x40 [ 66.595501] ? security_socket_sendmsg+0x6a/0xa0 [ 66.600385] ? netlink_unicast+0x5f0/0x5f0 [ 66.604731] sock_sendmsg+0xb5/0xf0 [ 66.608453] ___sys_sendmsg+0x625/0x920 [ 66.612595] ? trace_hardirqs_off+0x10/0x10 [ 66.617043] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 66.621891] ? find_held_lock+0x36/0x1d0 [ 66.625966] ? lock_downgrade+0x7f0/0x7f0 [ 66.630103] ? __fget+0x1ca/0x2f0 [ 66.633610] ? __fget_light+0x166/0x200 [ 66.637578] ? __fdget+0xe/0x10 [ 66.640862] ? sockfd_lookup_light+0x1c/0x150 [ 66.645367] __sys_sendmsg+0xc1/0x140 [ 66.649156] ? SyS_shutdown+0x180/0x180 [ 66.653137] ? __sb_end_write+0xa4/0xd0 [ 66.657366] ? mutex_unlock+0xd/0x10 [ 66.661072] ? do_syscall_64+0x4c/0x5b0 [ 66.665034] ? __sys_sendmsg+0x140/0x140 [ 66.669080] SyS_sendmsg+0xd/0x20 [ 66.672529] do_syscall_64+0x1c7/0x5b0 [ 66.676410] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 66.681251] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 66.686421] RIP: 0033:0x459ef9 [ 66.689588] RSP: 002b:00007fd91524ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 66.697294] RAX: ffffffffffffffda RBX: 00007fd91524ec90 RCX: 0000000000459ef9 [ 66.704648] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 66.711921] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 66.719193] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91524f6d4 [ 66.726496] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 66.781188] batman_adv: batadv0: Adding interface: bridge_slave_1 [ 66.787546] batman_adv: batadv0: The MTU of interface bridge_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. [ 66.813053] batman_adv: batadv0: Interface activated: bridge_slave_1 [ 66.819935] device bridge_slave_1 left promiscuous mode [ 66.834601] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.841081] FAULT_INJECTION: forcing a failure. [ 66.841081] name failslab, interval 1, probability 0, space 0, times 0 [ 66.852309] CPU: 1 PID: 7189 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0 [ 66.860288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.869735] Call Trace: [ 66.872314] dump_stack+0xf7/0x13b [ 66.875888] should_fail.cold.3+0x105/0x14b [ 66.880209] should_failslab+0xba/0xf0 [ 66.884097] kmem_cache_alloc_node+0x56/0x790 [ 66.888625] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 66.893729] __alloc_skb+0x92/0x500 [ 66.897337] ? skb_trim+0x160/0x160 [ 66.900951] ? br_switchdev_set_port_flag+0x1e0/0x1e0 [ 66.906178] ? __lock_is_held+0xb5/0x140 [ 66.910235] fdb_notify+0x88/0x130 [ 66.913764] fdb_delete+0x129/0x3a0 [ 66.917402] br_fdb_delete_by_port+0x163/0x1d0 [ 66.921978] br_stp_disable_port+0xeb/0x150 [ 66.926290] del_nbp+0x119/0x8b0 [ 66.929650] br_del_if+0xc7/0x470 [ 66.933086] br_del_slave+0x10/0x20 [ 66.936744] do_set_master+0xb6/0x1f0 [ 66.940568] do_setlink+0x9dd/0x2c50 [ 66.944275] ? rtnl_register+0x20/0x20 [ 66.948150] ? trace_hardirqs_off+0x10/0x10 [ 66.952464] ? __lock_acquire+0x6a4/0x4500 [ 66.956688] ? trace_hardirqs_off+0x10/0x10 [ 66.961003] ? __lock_acquire+0x6a4/0x4500 [ 66.965330] ? trace_hardirqs_on+0x10/0x10 [ 66.969551] ? __lock_acquire+0x6a4/0x4500 [ 66.973774] ? trace_hardirqs_off+0x10/0x10 [ 66.978191] rtnl_newlink+0xe0c/0x1390 [ 66.982072] ? trace_hardirqs_off+0x10/0x10 [ 66.986415] ? memset+0x31/0x40 [ 66.989675] ? rtnl_newlink+0x6d0/0x1390 [ 66.993722] ? rtnl_link_unregister+0x270/0x270 [ 66.998371] ? finish_task_switch+0x178/0x650 [ 67.002850] ? finish_task_switch+0x14d/0x650 [ 67.007339] ? find_held_lock+0x36/0x1d0 [ 67.011394] ? __mutex_lock+0x8b7/0x14c0 [ 67.015435] ? lock_downgrade+0x7f0/0x7f0 [ 67.019583] ? do_raw_spin_unlock+0x16a/0x250 [ 67.024097] rtnetlink_rcv_msg+0x34f/0x9d0 [ 67.028327] ? rtnl_bridge_getlink+0x760/0x760 [ 67.032947] ? find_held_lock+0x36/0x1d0 [ 67.037006] netlink_rcv_skb+0x133/0x370 [ 67.041065] ? rtnl_bridge_getlink+0x760/0x760 [ 67.045649] ? netlink_ack+0xa00/0xa00 [ 67.049527] ? netlink_deliver_tap+0x8e/0x920 [ 67.054028] rtnetlink_rcv+0x10/0x20 [ 67.057737] netlink_unicast+0x40d/0x5f0 [ 67.061786] ? netlink_attachskb+0x6e0/0x6e0 [ 67.066202] netlink_sendmsg+0x730/0xbd0 [ 67.070259] ? netlink_unicast+0x5f0/0x5f0 [ 67.074481] ? selinux_socket_sendmsg+0x31/0x40 [ 67.079148] ? security_socket_sendmsg+0x6a/0xa0 [ 67.083931] ? netlink_unicast+0x5f0/0x5f0 [ 67.088156] sock_sendmsg+0xb5/0xf0 [ 67.092200] ___sys_sendmsg+0x625/0x920 [ 67.096158] ? trace_hardirqs_off+0x10/0x10 [ 67.100470] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 67.105212] ? find_held_lock+0x36/0x1d0 [ 67.109259] ? lock_downgrade+0x7f0/0x7f0 [ 67.113410] ? __fget+0x1ca/0x2f0 [ 67.116861] ? __fget_light+0x166/0x200 [ 67.120818] ? __fdget+0xe/0x10 [ 67.124086] ? sockfd_lookup_light+0x1c/0x150 [ 67.128561] __sys_sendmsg+0xc1/0x140 [ 67.132346] ? SyS_shutdown+0x180/0x180 [ 67.136306] ? __sb_end_write+0xa4/0xd0 [ 67.140273] ? mutex_unlock+0xd/0x10 [ 67.143985] ? do_syscall_64+0x4c/0x5b0 [ 67.147962] ? __sys_sendmsg+0x140/0x140 [ 67.152014] SyS_sendmsg+0xd/0x20 [ 67.155461] do_syscall_64+0x1c7/0x5b0 [ 67.159328] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 67.164150] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 67.169410] RIP: 0033:0x459ef9 [ 67.172589] RSP: 002b:00007f2d8618bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 67.180280] RAX: ffffffffffffffda RBX: 00007f2d8618bc90 RCX: 0000000000459ef9 [ 67.187535] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 67.195132] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 67.202386] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d8618c6d4 [ 67.209649] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 67.241845] batman_adv: batadv0: Adding interface: bridge_slave_1 [ 67.248311] batman_adv: batadv0: The MTU of interface bridge_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. [ 67.273609] batman_adv: batadv0: Interface activated: bridge_slave_1 [ 67.280866] FAULT_INJECTION: forcing a failure. [ 67.280866] name failslab, interval 1, probability 0, space 0, times 0 [ 67.305855] CPU: 0 PID: 7192 Comm: syz-executor.0 Not tainted 4.14.173-syzkaller #0 [ 67.313801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.323256] Call Trace: [ 67.325842] dump_stack+0xf7/0x13b [ 67.329363] should_fail.cold.3+0x105/0x14b [ 67.333676] should_failslab+0xba/0xf0 [ 67.337557] kmem_cache_alloc+0x2cf/0x790 [ 67.341791] ? memcpy+0x45/0x50 [ 67.345088] ? kstrdup+0x42/0x60 [ 67.348443] __kernfs_new_node+0x63/0x470 [ 67.352595] ? lock_downgrade+0x7f0/0x7f0 [ 67.356744] kernfs_new_node+0x5e/0xe0 [ 67.360625] kernfs_create_link+0x25/0x130 [ 67.364896] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 67.370677] sysfs_create_link+0x43/0xb0 [ 67.374726] netdev_adjacent_sysfs_add+0x94/0xb0 [ 67.379467] ? napi_disable+0x80/0x80 [ 67.383310] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 67.388480] __netdev_upper_dev_link+0x174/0x1f0 [ 67.393238] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 67.397979] netdev_master_upper_dev_link+0x14/0x20 [ 67.402981] batadv_hardif_enable_interface+0x1af/0x990 [ 67.408336] batadv_softif_slave_add+0x82/0xe0 [ 67.412904] do_set_master+0x163/0x1f0 [ 67.416771] do_setlink+0x9dd/0x2c50 [ 67.420547] ? find_held_lock+0x36/0x1d0 [ 67.424599] ? rtnl_register+0x20/0x20 [ 67.428489] ? load_balance+0xb38/0x2190 [ 67.432537] ? lock_downgrade+0x7f0/0x7f0 [ 67.436722] ? lock_pin_lock+0x340/0x340 [ 67.440792] ? __lock_acquire+0x6a4/0x4500 [ 67.445013] ? trace_hardirqs_off+0x10/0x10 [ 67.449315] ? __lock_is_held+0xb5/0x140 [ 67.453373] ? trace_hardirqs_off+0x10/0x10 [ 67.457689] rtnl_newlink+0xe0c/0x1390 [ 67.461580] ? rtnl_link_unregister+0x270/0x270 [ 67.466226] ? finish_task_switch+0x178/0x650 [ 67.470696] ? finish_task_switch+0x14d/0x650 [ 67.475170] ? find_held_lock+0x36/0x1d0 [ 67.479225] ? __mutex_lock+0x8b7/0x14c0 [ 67.483287] ? lock_downgrade+0x7f0/0x7f0 [ 67.487502] ? do_raw_spin_unlock+0x16a/0x250 [ 67.492004] rtnetlink_rcv_msg+0x34f/0x9d0 [ 67.496232] ? rtnl_bridge_getlink+0x760/0x760 [ 67.500792] ? find_held_lock+0x36/0x1d0 [ 67.504844] netlink_rcv_skb+0x133/0x370 [ 67.508892] ? rtnl_bridge_getlink+0x760/0x760 [ 67.514596] ? netlink_ack+0xa00/0xa00 [ 67.518464] ? netlink_deliver_tap+0x8e/0x920 [ 67.522939] rtnetlink_rcv+0x10/0x20 [ 67.526632] netlink_unicast+0x40d/0x5f0 [ 67.530681] ? netlink_attachskb+0x6e0/0x6e0 [ 67.535106] netlink_sendmsg+0x730/0xbd0 [ 67.539144] ? netlink_unicast+0x5f0/0x5f0 [ 67.543367] ? selinux_socket_sendmsg+0x31/0x40 [ 67.548026] ? security_socket_sendmsg+0x6a/0xa0 [ 67.552772] ? netlink_unicast+0x5f0/0x5f0 [ 67.556989] sock_sendmsg+0xb5/0xf0 [ 67.560607] ___sys_sendmsg+0x625/0x920 [ 67.564633] ? trace_hardirqs_off+0x10/0x10 [ 67.568937] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 67.573675] ? find_held_lock+0x36/0x1d0 [ 67.577726] ? lock_downgrade+0x7f0/0x7f0 [ 67.581859] ? __fget+0x1ca/0x2f0 [ 67.585299] ? __fget_light+0x166/0x200 [ 67.589270] ? __fdget+0xe/0x10 [ 67.592532] ? sockfd_lookup_light+0x1c/0x150 [ 67.597006] __sys_sendmsg+0xc1/0x140 [ 67.600786] ? SyS_shutdown+0x180/0x180 [ 67.604740] ? __sb_end_write+0xa4/0xd0 [ 67.608693] ? mutex_unlock+0xd/0x10 [ 67.612393] ? do_syscall_64+0x4c/0x5b0 [ 67.616347] ? __sys_sendmsg+0x140/0x140 [ 67.620409] SyS_sendmsg+0xd/0x20 [ 67.623851] do_syscall_64+0x1c7/0x5b0 [ 67.627726] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 67.632577] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 67.637758] RIP: 0033:0x459ef9 [ 67.640930] RSP: 002b:00007f666a648c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 67.648617] RAX: ffffffffffffffda RBX: 00007f666a648c90 RCX: 0000000000459ef9 [ 67.655877] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 67.663154] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 67.670402] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f666a6496d4 [ 67.677651] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 67.691139] device bridge_slave_0 left promiscuous mode [ 67.706230] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.712710] FAULT_INJECTION: forcing a failure. [ 67.712710] name failslab, interval 1, probability 0, space 0, times 0 [ 67.723929] CPU: 1 PID: 7195 Comm: syz-executor.1 Not tainted 4.14.173-syzkaller #0 [ 67.731712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.741057] Call Trace: [ 67.743643] dump_stack+0xf7/0x13b [ 67.747177] should_fail.cold.3+0x105/0x14b [ 67.751637] should_failslab+0xba/0xf0 [ 67.755509] kmem_cache_alloc_node+0x56/0x790 [ 67.760046] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 67.765149] __alloc_skb+0x92/0x500 [ 67.768754] ? skb_trim+0x160/0x160 [ 67.772367] ? br_switchdev_set_port_flag+0x1e0/0x1e0 [ 67.777545] ? __lock_is_held+0xb5/0x140 [ 67.781596] fdb_notify+0x88/0x130 [ 67.785134] fdb_delete+0x129/0x3a0 [ 67.788748] br_fdb_delete_by_port+0x163/0x1d0 [ 67.793319] br_stp_disable_port+0xeb/0x150 [ 67.799642] del_nbp+0x119/0x8b0 [ 67.803009] br_del_if+0xc7/0x470 [ 67.806501] br_del_slave+0x10/0x20 [ 67.810122] do_set_master+0xb6/0x1f0 [ 67.813908] do_setlink+0x9dd/0x2c50 [ 67.817606] ? rtnl_register+0x20/0x20 [ 67.821491] ? __lock_acquire+0x6a4/0x4500 [ 67.825731] ? __lock_acquire+0x6a4/0x4500 [ 67.829955] ? __lock_acquire+0x6a4/0x4500 [ 67.834182] ? trace_hardirqs_on+0x10/0x10 [ 67.838491] ? trace_hardirqs_off+0x10/0x10 [ 67.842804] ? __lock_acquire+0x6a4/0x4500 [ 67.847030] rtnl_newlink+0xe0c/0x1390 [ 67.850900] ? trace_hardirqs_off+0x10/0x10 [ 67.855203] ? memset+0x31/0x40 [ 67.858464] ? rtnl_newlink+0x6d0/0x1390 [ 67.862523] ? rtnl_link_unregister+0x270/0x270 [ 67.867206] ? finish_task_switch+0x178/0x650 [ 67.871700] ? finish_task_switch+0x14d/0x650 [ 67.876208] ? find_held_lock+0x36/0x1d0 [ 67.880271] ? __mutex_lock+0x8b7/0x14c0 [ 67.884324] ? lock_downgrade+0x7f0/0x7f0 [ 67.888455] ? do_raw_spin_unlock+0x16a/0x250 [ 67.892949] rtnetlink_rcv_msg+0x34f/0x9d0 [ 67.897179] ? rtnl_bridge_getlink+0x760/0x760 [ 67.901750] ? find_held_lock+0x36/0x1d0 [ 67.905801] netlink_rcv_skb+0x133/0x370 [ 67.909928] ? rtnl_bridge_getlink+0x760/0x760 [ 67.914520] ? netlink_ack+0xa00/0xa00 [ 67.918386] ? netlink_deliver_tap+0x8e/0x920 [ 67.922873] rtnetlink_rcv+0x10/0x20 [ 67.926574] netlink_unicast+0x40d/0x5f0 [ 67.930628] ? netlink_attachskb+0x6e0/0x6e0 [ 67.935026] netlink_sendmsg+0x730/0xbd0 [ 67.939329] ? netlink_unicast+0x5f0/0x5f0 [ 67.943639] ? selinux_socket_sendmsg+0x31/0x40 [ 67.948300] ? security_socket_sendmsg+0x6a/0xa0 [ 67.953053] ? netlink_unicast+0x5f0/0x5f0 [ 67.957317] sock_sendmsg+0xb5/0xf0 [ 67.960933] ___sys_sendmsg+0x625/0x920 [ 67.964896] ? trace_hardirqs_off+0x10/0x10 [ 67.969197] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 67.973935] ? find_held_lock+0x36/0x1d0 [ 67.977991] ? lock_downgrade+0x7f0/0x7f0 [ 67.982172] ? __fget+0x1ca/0x2f0 [ 67.985615] ? __fget_light+0x166/0x200 [ 67.989685] ? __fdget+0xe/0x10 [ 67.992955] ? sockfd_lookup_light+0x1c/0x150 [ 67.997436] __sys_sendmsg+0xc1/0x140 [ 68.001219] ? SyS_shutdown+0x180/0x180 [ 68.005179] ? __sb_end_write+0xa4/0xd0 [ 68.009140] ? mutex_unlock+0xd/0x10 [ 68.012839] ? do_syscall_64+0x4c/0x5b0 [ 68.016791] ? __sys_sendmsg+0x140/0x140 [ 68.020833] SyS_sendmsg+0xd/0x20 [ 68.024273] do_syscall_64+0x1c7/0x5b0 [ 68.028144] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 68.033236] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 68.038520] RIP: 0033:0x459ef9 [ 68.041698] RSP: 002b:00007f168d5e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 68.049397] RAX: ffffffffffffffda RBX: 00007f168d5e9c90 RCX: 0000000000459ef9 [ 68.056650] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 68.063910] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 68.071276] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f168d5ea6d4 [ 68.078992] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 68.121875] batman_adv: batadv0: Adding interface: bridge_slave_0 [ 68.128290] batman_adv: batadv0: The MTU of interface bridge_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. [ 68.153636] batman_adv: batadv0: Interface activated: bridge_slave_0 [ 68.160830] device bridge_slave_0 left promiscuous mode [ 68.174439] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.180905] FAULT_INJECTION: forcing a failure. [ 68.180905] name failslab, interval 1, probability 0, space 0, times 0 [ 68.192138] CPU: 0 PID: 7198 Comm: syz-executor.5 Not tainted 4.14.173-syzkaller #0 [ 68.199921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.209257] Call Trace: [ 68.211843] dump_stack+0xf7/0x13b [ 68.215371] should_fail.cold.3+0x105/0x14b [ 68.219680] should_failslab+0xba/0xf0 [ 68.223553] kmem_cache_alloc_node_trace+0x5a/0x780 [ 68.228570] __kmalloc_node_track_caller+0x3c/0x70 [ 68.233489] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 68.238337] __alloc_skb+0xc1/0x500 [ 68.241955] ? skb_trim+0x160/0x160 [ 68.245566] ? br_switchdev_set_port_flag+0x1e0/0x1e0 [ 68.250741] ? __lock_is_held+0xb5/0x140 [ 68.254908] fdb_notify+0x88/0x130 [ 68.258435] fdb_delete+0x129/0x3a0 [ 68.262052] br_fdb_delete_by_port+0x163/0x1d0 [ 68.266633] br_stp_disable_port+0xeb/0x150 [ 68.270949] del_nbp+0x119/0x8b0 [ 68.274302] br_del_if+0xc7/0x470 [ 68.277758] br_del_slave+0x10/0x20 [ 68.281367] do_set_master+0xb6/0x1f0 [ 68.285186] do_setlink+0x9dd/0x2c50 [ 68.288908] ? trace_hardirqs_off+0x10/0x10 [ 68.293221] ? lock_downgrade+0x7f0/0x7f0 [ 68.297424] ? rtnl_register+0x20/0x20 [ 68.301297] ? trace_hardirqs_off+0x10/0x10 [ 68.305601] ? find_held_lock+0x36/0x1d0 [ 68.309681] ? __lock_acquire+0x6a4/0x4500 [ 68.313900] ? load_balance+0xb38/0x2190 [ 68.317945] ? lock_downgrade+0x7f0/0x7f0 [ 68.322090] ? lock_pin_lock+0x340/0x340 [ 68.326147] ? __lock_acquire+0x6a4/0x4500 [ 68.330373] ? trace_hardirqs_off+0x10/0x10 [ 68.334679] ? __lock_is_held+0xb5/0x140 [ 68.338737] rtnl_newlink+0xe0c/0x1390 [ 68.342602] ? trace_hardirqs_off+0x10/0x10 [ 68.347008] ? trace_hardirqs_off+0x10/0x10 [ 68.351331] ? memset+0x31/0x40 [ 68.354612] ? rtnl_newlink+0x6d0/0x1390 [ 68.358680] ? rtnl_link_unregister+0x270/0x270 [ 68.363406] ? finish_task_switch+0x178/0x650 [ 68.367932] ? finish_task_switch+0x14d/0x650 [ 68.372419] ? find_held_lock+0x36/0x1d0 [ 68.376473] ? __mutex_lock+0x8b7/0x14c0 [ 68.380522] ? lock_downgrade+0x7f0/0x7f0 [ 68.384658] ? do_raw_spin_unlock+0x16a/0x250 [ 68.389147] rtnetlink_rcv_msg+0x34f/0x9d0 [ 68.393374] ? rtnl_bridge_getlink+0x760/0x760 [ 68.397977] ? find_held_lock+0x36/0x1d0 [ 68.402029] netlink_rcv_skb+0x133/0x370 [ 68.406077] ? rtnl_bridge_getlink+0x760/0x760 [ 68.410647] ? netlink_ack+0xa00/0xa00 [ 68.414612] ? netlink_deliver_tap+0x8e/0x920 [ 68.419102] rtnetlink_rcv+0x10/0x20 [ 68.422847] netlink_unicast+0x40d/0x5f0 [ 68.426896] ? netlink_attachskb+0x6e0/0x6e0 [ 68.431287] netlink_sendmsg+0x730/0xbd0 [ 68.435336] ? netlink_unicast+0x5f0/0x5f0 [ 68.439565] ? selinux_socket_sendmsg+0x31/0x40 [ 68.444217] ? security_socket_sendmsg+0x6a/0xa0 [ 68.448953] ? netlink_unicast+0x5f0/0x5f0 [ 68.453179] sock_sendmsg+0xb5/0xf0 [ 68.456864] ___sys_sendmsg+0x625/0x920 [ 68.460822] ? trace_hardirqs_off+0x10/0x10 [ 68.465164] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 68.469921] ? find_held_lock+0x36/0x1d0 [ 68.473974] ? lock_downgrade+0x7f0/0x7f0 [ 68.478291] ? __fget+0x1ca/0x2f0 [ 68.481746] ? __fget_light+0x166/0x200 [ 68.485829] ? __fdget+0xe/0x10 [ 68.489101] ? sockfd_lookup_light+0x1c/0x150 [ 68.493590] __sys_sendmsg+0xc1/0x140 [ 68.497380] ? SyS_shutdown+0x180/0x180 [ 68.501354] ? __sb_end_write+0xa4/0xd0 [ 68.505345] ? mutex_unlock+0xd/0x10 [ 68.509055] ? do_syscall_64+0x4c/0x5b0 [ 68.513136] ? __sys_sendmsg+0x140/0x140 [ 68.517185] SyS_sendmsg+0xd/0x20 [ 68.520747] do_syscall_64+0x1c7/0x5b0 [ 68.524623] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 68.529457] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 68.534657] RIP: 0033:0x459ef9 [ 68.537835] RSP: 002b:00007f5fa9badc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 68.545706] RAX: ffffffffffffffda RBX: 00007f5fa9badc90 RCX: 0000000000459ef9 [ 68.552955] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 68.560281] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 68.567594] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fa9bae6d4 [ 68.575175] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 68.611632] batman_adv: batadv0: Adding interface: bridge_slave_0 [ 68.618181] batman_adv: batadv0: The MTU of interface bridge_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. [ 68.643806] batman_adv: batadv0: Interface activated: bridge_slave_0 [ 68.651445] device bridge_slave_1 left promiscuous mode [ 68.662727] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.669335] FAULT_INJECTION: forcing a failure. [ 68.669335] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 68.681127] CPU: 0 PID: 7201 Comm: syz-executor.2 Not tainted 4.14.173-syzkaller #0 [ 68.688908] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.698254] Call Trace: [ 68.700834] dump_stack+0xf7/0x13b [ 68.704377] should_fail.cold.3+0x105/0x14b [ 68.708693] __alloc_pages_nodemask+0x1d5/0x770 [ 68.713550] ? __alloc_pages_slowpath+0x2650/0x2650 [ 68.718688] ? trace_hardirqs_on+0x10/0x10 [ 68.722917] ? vprintk_default+0x1a/0x20 [ 68.727086] ? vprintk_func+0x49/0x12c [ 68.730962] cache_grow_begin+0x80/0x3f0 [ 68.736071] kmem_cache_alloc_node+0x6b7/0x790 [ 68.740659] ? br_get_link_af_size_filtered+0xb5/0x6e0 [ 68.745931] __alloc_skb+0x92/0x500 [ 68.749559] ? skb_trim+0x160/0x160 [ 68.753195] ? br_get_link_af_size_filtered+0xd2/0x6e0 [ 68.758462] br_ifinfo_notify.part.21+0x89/0x160 [ 68.763215] br_ifinfo_notify+0xe/0x20 [ 68.767083] br_stp_disable_port+0xbb/0x150 [ 68.771391] del_nbp+0x119/0x8b0 [ 68.774738] br_del_if+0xc7/0x470 [ 68.778179] br_del_slave+0x10/0x20 [ 68.781810] do_set_master+0xb6/0x1f0 [ 68.785601] do_setlink+0x9dd/0x2c50 [ 68.789295] ? trace_hardirqs_off+0x10/0x10 [ 68.793597] ? lock_downgrade+0x7f0/0x7f0 [ 68.797733] ? rtnl_register+0x20/0x20 [ 68.801606] ? trace_hardirqs_off+0x10/0x10 [ 68.805910] ? find_held_lock+0x36/0x1d0 [ 68.809952] ? __lock_acquire+0x6a4/0x4500 [ 68.814178] ? load_balance+0xb38/0x2190 [ 68.818219] ? lock_downgrade+0x7f0/0x7f0 [ 68.822345] ? lock_pin_lock+0x340/0x340 [ 68.826389] ? __lock_acquire+0x6a4/0x4500 [ 68.830618] ? trace_hardirqs_off+0x10/0x10 [ 68.835019] ? __lock_is_held+0xb5/0x140 [ 68.839071] rtnl_newlink+0xe0c/0x1390 [ 68.842975] ? trace_hardirqs_off+0x10/0x10 [ 68.847303] ? memset+0x31/0x40 [ 68.850579] ? rtnl_newlink+0x6d0/0x1390 [ 68.854648] ? rtnl_link_unregister+0x270/0x270 [ 68.859307] ? finish_task_switch+0x178/0x650 [ 68.863790] ? finish_task_switch+0x14d/0x650 [ 68.868277] ? find_held_lock+0x36/0x1d0 [ 68.872325] ? __mutex_lock+0x8b7/0x14c0 [ 68.876371] ? lock_downgrade+0x7f0/0x7f0 [ 68.880501] ? do_raw_spin_unlock+0x16a/0x250 [ 68.884997] rtnetlink_rcv_msg+0x34f/0x9d0 [ 68.889222] ? rtnl_bridge_getlink+0x760/0x760 [ 68.893814] ? find_held_lock+0x36/0x1d0 [ 68.897866] netlink_rcv_skb+0x133/0x370 [ 68.902334] ? rtnl_bridge_getlink+0x760/0x760 [ 68.906957] ? netlink_ack+0xa00/0xa00 [ 68.910827] ? netlink_deliver_tap+0x8e/0x920 [ 68.915575] rtnetlink_rcv+0x10/0x20 [ 68.919294] netlink_unicast+0x40d/0x5f0 [ 68.923447] ? netlink_attachskb+0x6e0/0x6e0 [ 68.927851] netlink_sendmsg+0x730/0xbd0 [ 68.931897] ? netlink_unicast+0x5f0/0x5f0 [ 68.936114] ? selinux_socket_sendmsg+0x31/0x40 [ 68.940762] ? security_socket_sendmsg+0x6a/0xa0 [ 68.945496] ? netlink_unicast+0x5f0/0x5f0 [ 68.949721] sock_sendmsg+0xb5/0xf0 [ 68.953334] ___sys_sendmsg+0x625/0x920 [ 68.957297] ? trace_hardirqs_off+0x10/0x10 [ 68.961790] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 68.966534] ? find_held_lock+0x36/0x1d0 [ 68.970612] ? lock_downgrade+0x7f0/0x7f0 [ 68.974754] ? __fget+0x1ca/0x2f0 [ 68.978196] ? __fget_light+0x166/0x200 [ 68.982150] ? __fdget+0xe/0x10 [ 68.985421] ? sockfd_lookup_light+0x1c/0x150 [ 68.989911] __sys_sendmsg+0xc1/0x140 [ 68.993693] ? SyS_shutdown+0x180/0x180 [ 68.997655] ? __sb_end_write+0xa4/0xd0 [ 69.001645] ? mutex_unlock+0xd/0x10 [ 69.005339] ? do_syscall_64+0x4c/0x5b0 [ 69.009349] ? __sys_sendmsg+0x140/0x140 [ 69.013491] SyS_sendmsg+0xd/0x20 [ 69.016938] do_syscall_64+0x1c7/0x5b0 [ 69.020815] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 69.025789] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 69.030962] RIP: 0033:0x459ef9 [ 69.034132] RSP: 002b:00007fa8a10f3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 69.041822] RAX: ffffffffffffffda RBX: 00007fa8a10f3c90 RCX: 0000000000459ef9 [ 69.050211] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 69.057471] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 69.064735] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8a10f46d4 [ 69.071996] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 69.112704] batman_adv: batadv0: Adding interface: bridge_slave_1 [ 69.119047] batman_adv: batadv0: The MTU of interface bridge_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. [ 69.144601] batman_adv: batadv0: Interface activated: bridge_slave_1 [ 69.152734] FAULT_INJECTION: forcing a failure. [ 69.152734] name failslab, interval 1, probability 0, space 0, times 0 [ 69.173922] CPU: 0 PID: 7203 Comm: syz-executor.4 Not tainted 4.14.173-syzkaller #0 [ 69.181748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.191097] Call Trace: [ 69.193668] dump_stack+0xf7/0x13b [ 69.197192] should_fail.cold.3+0x105/0x14b [ 69.201529] should_failslab+0xba/0xf0 [ 69.205397] kmem_cache_alloc_node+0x287/0x790 [ 69.210017] __alloc_skb+0x92/0x500 [ 69.213643] ? skb_trim+0x160/0x160 [ 69.217298] ? if_nlmsg_size+0x2d9/0x6f0 [ 69.221355] rtmsg_ifinfo_build_skb+0x68/0x120 [ 69.225941] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 69.230786] rtmsg_ifinfo+0x4a/0x70 [ 69.234444] bond_upper_dev_unlink.isra.45+0x95/0xc0 [ 69.239552] __bond_release_one+0x2c2/0x1370 [ 69.243960] ? trace_hardirqs_on+0x10/0x10 [ 69.248194] ? bond_enslave+0x4a80/0x4a80 [ 69.252332] ? find_held_lock+0x36/0x1d0 [ 69.256377] ? trace_hardirqs_off+0x10/0x10 [ 69.260679] ? trace_hardirqs_off+0x10/0x10 [ 69.265022] ? trace_hardirqs_off+0x10/0x10 [ 69.269350] ? lock_downgrade+0x7f0/0x7f0 [ 69.273485] bond_release+0xd/0x10 [ 69.277010] do_set_master+0xb6/0x1f0 [ 69.280889] do_setlink+0x9dd/0x2c50 [ 69.284597] ? rtnl_register+0x20/0x20 [ 69.288497] ? __lock_acquire+0x6a4/0x4500 [ 69.293062] ? load_balance+0xb38/0x2190 [ 69.297125] ? lock_downgrade+0x7f0/0x7f0 [ 69.301267] ? lock_pin_lock+0x340/0x340 [ 69.305336] ? __lock_acquire+0x6a4/0x4500 [ 69.309555] ? trace_hardirqs_off+0x10/0x10 [ 69.314139] ? __lock_is_held+0xb5/0x140 [ 69.318236] ? trace_hardirqs_off+0x10/0x10 [ 69.322555] rtnl_newlink+0xe0c/0x1390 [ 69.326429] ? memset+0x31/0x40 [ 69.329703] ? rtnl_newlink+0x6d0/0x1390 [ 69.333805] ? rtnl_link_unregister+0x270/0x270 [ 69.338468] ? finish_task_switch+0x178/0x650 [ 69.342951] ? finish_task_switch+0x14d/0x650 [ 69.347447] ? find_held_lock+0x36/0x1d0 [ 69.351545] ? __mutex_lock+0x8b7/0x14c0 [ 69.355602] ? lock_downgrade+0x7f0/0x7f0 [ 69.359758] ? do_raw_spin_unlock+0x16a/0x250 [ 69.364353] rtnetlink_rcv_msg+0x34f/0x9d0 [ 69.368597] ? rtnl_bridge_getlink+0x760/0x760 [ 69.373311] ? find_held_lock+0x36/0x1d0 [ 69.377374] netlink_rcv_skb+0x133/0x370 [ 69.381420] ? rtnl_bridge_getlink+0x760/0x760 [ 69.385989] ? netlink_ack+0xa00/0xa00 [ 69.389861] ? netlink_deliver_tap+0x8e/0x920 [ 69.394353] rtnetlink_rcv+0x10/0x20 [ 69.398104] netlink_unicast+0x40d/0x5f0 [ 69.402160] ? netlink_attachskb+0x6e0/0x6e0 [ 69.406554] netlink_sendmsg+0x730/0xbd0 [ 69.410600] ? netlink_unicast+0x5f0/0x5f0 [ 69.414923] ? selinux_socket_sendmsg+0x31/0x40 [ 69.419719] ? security_socket_sendmsg+0x6a/0xa0 [ 69.424839] ? netlink_unicast+0x5f0/0x5f0 [ 69.429060] sock_sendmsg+0xb5/0xf0 [ 69.432677] ___sys_sendmsg+0x625/0x920 [ 69.436903] ? trace_hardirqs_off+0x10/0x10 [ 69.441220] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 69.445969] ? find_held_lock+0x36/0x1d0 [ 69.450286] ? lock_downgrade+0x7f0/0x7f0 [ 69.454428] ? __fget+0x1ca/0x2f0 [ 69.457892] ? __fget_light+0x166/0x200 [ 69.462095] ? __fdget+0xe/0x10 [ 69.465506] ? sockfd_lookup_light+0x1c/0x150 [ 69.470001] __sys_sendmsg+0xc1/0x140 [ 69.473821] ? SyS_shutdown+0x180/0x180 [ 69.477781] ? __sb_end_write+0xa4/0xd0 [ 69.481776] ? mutex_unlock+0xd/0x10 [ 69.485533] ? do_syscall_64+0x4c/0x5b0 [ 69.489510] ? __sys_sendmsg+0x140/0x140 [ 69.493565] SyS_sendmsg+0xd/0x20 [ 69.497122] do_syscall_64+0x1c7/0x5b0 [ 69.500992] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 69.505868] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 69.511039] RIP: 0033:0x459ef9 [ 69.514225] RSP: 002b:00007fd91524ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 69.521913] RAX: ffffffffffffffda RBX: 00007fd91524ec90 RCX: 0000000000459ef9 [ 69.529192] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 69.536451] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 69.543706] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91524f6d4 [ 69.550964] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 69.560181] bond0: Releasing backup interface bond_slave_0 [ 69.601688] batman_adv: batadv0: Adding interface: bond_slave_0 [ 69.607845] batman_adv: batadv0: The MTU of interface bond_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. [ 69.633742] batman_adv: batadv0: Not using interface bond_slave_0 (retrying later): interface not active [ 69.643791] FAULT_INJECTION: forcing a failure. [ 69.643791] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 69.655643] CPU: 1 PID: 7207 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0 [ 69.663419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.672760] Call Trace: [ 69.675341] dump_stack+0xf7/0x13b [ 69.678862] should_fail.cold.3+0x105/0x14b [ 69.683173] ? do_set_master+0xb6/0x1f0 [ 69.687126] __alloc_pages_nodemask+0x1d5/0x770 [ 69.691778] ? __alloc_pages_slowpath+0x2650/0x2650 [ 69.696775] ? lock_downgrade+0x7f0/0x7f0 [ 69.700916] cache_grow_begin+0x80/0x3f0 [ 69.705107] kmem_cache_alloc_node_trace+0x6aa/0x780 [ 69.710211] __kmalloc_node_track_caller+0x3c/0x70 [ 69.715136] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 69.719881] __alloc_skb+0xc1/0x500 [ 69.723485] ? skb_trim+0x160/0x160 [ 69.727092] ? if_nlmsg_size+0x2d9/0x6f0 [ 69.731141] rtmsg_ifinfo_build_skb+0x68/0x120 [ 69.735712] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 69.740532] rtnetlink_event+0xc2/0x110 [ 69.744482] notifier_call_chain+0xd6/0x150 [ 69.748781] raw_notifier_call_chain+0x11/0x20 [ 69.753341] call_netdevice_notifiers_info+0x4b/0x60 [ 69.758420] netdev_upper_dev_unlink+0xab/0xe0 [ 69.762989] ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30 [ 69.769199] bond_upper_dev_unlink.isra.45+0x33/0xc0 [ 69.774464] __bond_release_one+0x2c2/0x1370 [ 69.778863] ? bond_enslave+0x4a80/0x4a80 [ 69.783367] ? __lock_acquire+0x6a4/0x4500 [ 69.787608] bond_release+0xd/0x10 [ 69.791149] do_set_master+0xb6/0x1f0 [ 69.794933] do_setlink+0x9dd/0x2c50 [ 69.798630] ? __lock_acquire+0x6a4/0x4500 [ 69.803119] ? rtnl_register+0x20/0x20 [ 69.806985] ? __lock_acquire+0x6a4/0x4500 [ 69.811205] ? __lock_acquire+0x6a4/0x4500 [ 69.815425] ? trace_hardirqs_on+0x10/0x10 [ 69.819637] ? trace_hardirqs_off+0x10/0x10 [ 69.823952] ? __lock_acquire+0x6a4/0x4500 [ 69.828175] ? trace_hardirqs_off+0x10/0x10 [ 69.832480] rtnl_newlink+0xe0c/0x1390 [ 69.839586] ? memset+0x31/0x40 [ 69.842844] ? rtnl_newlink+0x6d0/0x1390 [ 69.846889] ? rtnl_link_unregister+0x270/0x270 [ 69.851536] ? finish_task_switch+0x178/0x650 [ 69.856005] ? finish_task_switch+0x14d/0x650 [ 69.860738] ? find_held_lock+0x36/0x1d0 [ 69.864845] ? __mutex_lock+0x8b7/0x14c0 [ 69.869080] ? lock_downgrade+0x7f0/0x7f0 [ 69.873211] ? do_raw_spin_unlock+0x16a/0x250 [ 69.877893] rtnetlink_rcv_msg+0x34f/0x9d0 [ 69.882216] ? rtnl_bridge_getlink+0x760/0x760 [ 69.886867] ? find_held_lock+0x36/0x1d0 [ 69.890997] netlink_rcv_skb+0x133/0x370 [ 69.895050] ? rtnl_bridge_getlink+0x760/0x760 [ 69.899611] ? netlink_ack+0xa00/0xa00 [ 69.903494] ? netlink_deliver_tap+0x8e/0x920 [ 69.908057] rtnetlink_rcv+0x10/0x20 [ 69.911766] netlink_unicast+0x40d/0x5f0 [ 69.915886] ? netlink_attachskb+0x6e0/0x6e0 [ 69.920730] netlink_sendmsg+0x730/0xbd0 [ 69.924781] ? netlink_unicast+0x5f0/0x5f0 [ 69.929008] ? selinux_socket_sendmsg+0x31/0x40 [ 69.934204] ? security_socket_sendmsg+0x6a/0xa0 [ 69.939034] ? netlink_unicast+0x5f0/0x5f0 [ 69.943260] sock_sendmsg+0xb5/0xf0 [ 69.947392] ___sys_sendmsg+0x625/0x920 [ 69.951364] ? trace_hardirqs_off+0x10/0x10 [ 69.955670] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 69.960408] ? find_held_lock+0x36/0x1d0 [ 69.964451] ? lock_downgrade+0x7f0/0x7f0 [ 69.968678] ? __fget+0x1ca/0x2f0 [ 69.972139] ? __fget_light+0x166/0x200 [ 69.976093] ? __fdget+0xe/0x10 [ 69.979347] ? sockfd_lookup_light+0x1c/0x150 [ 69.983822] __sys_sendmsg+0xc1/0x140 [ 69.987708] ? SyS_shutdown+0x180/0x180 [ 69.991683] ? __sb_end_write+0xa4/0xd0 [ 69.995651] ? mutex_unlock+0xd/0x10 [ 69.999445] ? do_syscall_64+0x4c/0x5b0 [ 70.003769] ? __sys_sendmsg+0x140/0x140 [ 70.008349] SyS_sendmsg+0xd/0x20 [ 70.011787] do_syscall_64+0x1c7/0x5b0 [ 70.015653] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 70.020474] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 70.025661] RIP: 0033:0x459ef9 [ 70.028839] RSP: 002b:00007f2d8618bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 70.036526] RAX: ffffffffffffffda RBX: 00007f2d8618bc90 RCX: 0000000000459ef9 [ 70.044143] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 2020/03/12 23:44:49 executed programs: 94 [ 70.053122] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 70.061007] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d8618c6d4 [ 70.068267] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 70.086249] bond0: Releasing backup interface bond_slave_0 [ 70.112774] batman_adv: batadv0: Adding interface: bond_slave_0 [ 70.119124] batman_adv: batadv0: The MTU of interface bond_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. [ 70.145100] batman_adv: batadv0: Not using interface bond_slave_0 (retrying later): interface not active [ 70.155517] device bridge_slave_1 left promiscuous mode [ 70.166655] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.173157] FAULT_INJECTION: forcing a failure. [ 70.173157] name failslab, interval 1, probability 0, space 0, times 0 [ 70.184383] CPU: 1 PID: 7213 Comm: syz-executor.1 Not tainted 4.14.173-syzkaller #0 [ 70.192173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.201531] Call Trace: [ 70.204119] dump_stack+0xf7/0x13b [ 70.207663] should_fail.cold.3+0x105/0x14b [ 70.211989] should_failslab+0xba/0xf0 [ 70.215882] kmem_cache_alloc_node_trace+0x5a/0x780 [ 70.220902] __kmalloc_node_track_caller+0x3c/0x70 [ 70.225828] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 70.230574] __alloc_skb+0xc1/0x500 [ 70.234190] ? skb_trim+0x160/0x160 [ 70.237820] ? br_switchdev_set_port_flag+0x1e0/0x1e0 [ 70.242998] ? __lock_is_held+0xb5/0x140 [ 70.247056] fdb_notify+0x88/0x130 [ 70.250581] fdb_delete+0x129/0x3a0 [ 70.254197] br_fdb_delete_by_port+0x163/0x1d0 [ 70.258763] br_stp_disable_port+0xeb/0x150 [ 70.263072] del_nbp+0x119/0x8b0 [ 70.266423] br_del_if+0xc7/0x470 [ 70.269863] br_del_slave+0x10/0x20 [ 70.273471] do_set_master+0xb6/0x1f0 [ 70.277261] do_setlink+0x9dd/0x2c50 [ 70.280975] ? rtnl_register+0x20/0x20 [ 70.284859] ? __lock_acquire+0x6a4/0x4500 [ 70.289097] ? __lock_acquire+0x6a4/0x4500 [ 70.293310] ? __lock_acquire+0x6a4/0x4500 [ 70.297534] ? trace_hardirqs_on+0x10/0x10 [ 70.301753] ? trace_hardirqs_off+0x10/0x10 [ 70.306074] ? __lock_acquire+0x6a4/0x4500 [ 70.310316] rtnl_newlink+0xe0c/0x1390 [ 70.314192] ? trace_hardirqs_off+0x10/0x10 [ 70.318506] ? trace_hardirqs_off+0x10/0x10 [ 70.322819] ? memset+0x31/0x40 [ 70.326297] ? rtnl_newlink+0x6d0/0x1390 [ 70.330357] ? rtnl_link_unregister+0x270/0x270 [ 70.335014] ? finish_task_switch+0x178/0x650 [ 70.339520] ? finish_task_switch+0x14d/0x650 [ 70.344011] ? find_held_lock+0x36/0x1d0 [ 70.348083] ? __mutex_lock+0x8b7/0x14c0 [ 70.352142] ? lock_downgrade+0x7f0/0x7f0 [ 70.356297] ? do_raw_spin_unlock+0x16a/0x250 [ 70.360806] rtnetlink_rcv_msg+0x34f/0x9d0 [ 70.365048] ? rtnl_bridge_getlink+0x760/0x760 [ 70.369621] ? find_held_lock+0x36/0x1d0 [ 70.373682] netlink_rcv_skb+0x133/0x370 [ 70.377736] ? rtnl_bridge_getlink+0x760/0x760 [ 70.382401] ? netlink_ack+0xa00/0xa00 [ 70.386289] ? netlink_deliver_tap+0x8e/0x920 [ 70.390967] rtnetlink_rcv+0x10/0x20 [ 70.394666] netlink_unicast+0x40d/0x5f0 [ 70.398710] ? netlink_attachskb+0x6e0/0x6e0 [ 70.403131] netlink_sendmsg+0x730/0xbd0 [ 70.407181] ? netlink_unicast+0x5f0/0x5f0 [ 70.411395] ? selinux_socket_sendmsg+0x31/0x40 [ 70.416056] ? security_socket_sendmsg+0x6a/0xa0 [ 70.420934] ? netlink_unicast+0x5f0/0x5f0 [ 70.425169] sock_sendmsg+0xb5/0xf0 [ 70.428782] ___sys_sendmsg+0x625/0x920 [ 70.433291] ? trace_hardirqs_off+0x10/0x10 [ 70.438600] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 70.445923] ? find_held_lock+0x36/0x1d0 [ 70.450122] ? lock_downgrade+0x7f0/0x7f0 [ 70.454278] ? __fget+0x1ca/0x2f0 [ 70.457715] ? __fget_light+0x166/0x200 [ 70.461681] ? __fdget+0xe/0x10 [ 70.464949] ? sockfd_lookup_light+0x1c/0x150 [ 70.469433] __sys_sendmsg+0xc1/0x140 [ 70.473221] ? SyS_shutdown+0x180/0x180 [ 70.477529] ? __sb_end_write+0xa4/0xd0 [ 70.481528] ? mutex_unlock+0xd/0x10 [ 70.485282] ? do_syscall_64+0x4c/0x5b0 [ 70.490883] ? __sys_sendmsg+0x140/0x140 [ 70.494931] SyS_sendmsg+0xd/0x20 [ 70.498464] do_syscall_64+0x1c7/0x5b0 [ 70.502623] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 70.507475] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 70.512648] RIP: 0033:0x459ef9 [ 70.515830] RSP: 002b:00007f168d5e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 70.524240] RAX: ffffffffffffffda RBX: 00007f168d5e9c90 RCX: 0000000000459ef9 [ 70.531493] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 70.538832] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 70.546088] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f168d5ea6d4 [ 70.553421] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 70.591582] batman_adv: batadv0: Adding interface: bridge_slave_1 [ 70.598277] batman_adv: batadv0: The MTU of interface bridge_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. [ 70.624251] batman_adv: batadv0: Interface activated: bridge_slave_1 [ 70.631870] device bridge_slave_1 left promiscuous mode [ 70.637482] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.643942] FAULT_INJECTION: forcing a failure. [ 70.643942] name failslab, interval 1, probability 0, space 0, times 0 [ 70.655427] CPU: 1 PID: 7216 Comm: syz-executor.5 Not tainted 4.14.173-syzkaller #0 [ 70.663312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.672693] Call Trace: [ 70.675288] dump_stack+0xf7/0x13b [ 70.678833] should_fail.cold.3+0x105/0x14b [ 70.683151] should_failslab+0xba/0xf0 [ 70.687047] kmem_cache_alloc_node_trace+0x5a/0x780 [ 70.692075] __kmalloc_node_track_caller+0x3c/0x70 [ 70.697005] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 70.701756] __alloc_skb+0xc1/0x500 [ 70.705385] ? skb_trim+0x160/0x160 [ 70.709012] ? br_switchdev_set_port_flag+0x1e0/0x1e0 [ 70.714253] ? __lock_is_held+0xb5/0x140 [ 70.718406] fdb_notify+0x88/0x130 [ 70.722063] fdb_delete+0x129/0x3a0 [ 70.725698] br_fdb_delete_by_port+0x163/0x1d0 [ 70.730282] br_stp_disable_port+0xeb/0x150 [ 70.734593] del_nbp+0x119/0x8b0 [ 70.737960] br_del_if+0xc7/0x470 [ 70.741402] br_del_slave+0x10/0x20 [ 70.745020] do_set_master+0xb6/0x1f0 [ 70.748802] do_setlink+0x9dd/0x2c50 [ 70.752500] ? rtnl_register+0x20/0x20 [ 70.756400] ? __lock_acquire+0x6a4/0x4500 [ 70.760763] ? __lock_acquire+0x6a4/0x4500 [ 70.765053] ? __lock_acquire+0x6a4/0x4500 [ 70.769276] ? trace_hardirqs_on+0x10/0x10 [ 70.773607] ? trace_hardirqs_off+0x10/0x10 [ 70.777940] ? __lock_acquire+0x6a4/0x4500 [ 70.782187] rtnl_newlink+0xe0c/0x1390 [ 70.786067] ? trace_hardirqs_off+0x10/0x10 [ 70.790410] ? memset+0x31/0x40 [ 70.793679] ? rtnl_newlink+0x6d0/0x1390 [ 70.797753] ? rtnl_link_unregister+0x270/0x270 [ 70.802411] ? finish_task_switch+0x178/0x650 [ 70.807009] ? finish_task_switch+0x14d/0x650 [ 70.811838] ? find_held_lock+0x36/0x1d0 [ 70.815948] ? __mutex_lock+0x8b7/0x14c0 [ 70.820002] ? lock_downgrade+0x7f0/0x7f0 [ 70.824142] ? do_raw_spin_unlock+0x16a/0x250 [ 70.828633] rtnetlink_rcv_msg+0x34f/0x9d0 [ 70.833290] ? rtnl_bridge_getlink+0x760/0x760 [ 70.837867] ? find_held_lock+0x36/0x1d0 [ 70.842103] netlink_rcv_skb+0x133/0x370 [ 70.846208] ? rtnl_bridge_getlink+0x760/0x760 [ 70.850964] ? netlink_ack+0xa00/0xa00 [ 70.854861] ? netlink_deliver_tap+0x8e/0x920 [ 70.859357] rtnetlink_rcv+0x10/0x20 [ 70.863062] netlink_unicast+0x40d/0x5f0 [ 70.867124] ? netlink_attachskb+0x6e0/0x6e0 [ 70.872659] netlink_sendmsg+0x730/0xbd0 [ 70.876703] ? netlink_unicast+0x5f0/0x5f0 [ 70.884156] ? selinux_socket_sendmsg+0x31/0x40 [ 70.888830] ? security_socket_sendmsg+0x6a/0xa0 [ 70.893587] ? netlink_unicast+0x5f0/0x5f0 [ 70.897813] sock_sendmsg+0xb5/0xf0 [ 70.901524] ___sys_sendmsg+0x625/0x920 [ 70.905562] ? trace_hardirqs_off+0x10/0x10 [ 70.909949] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 70.914701] ? find_held_lock+0x36/0x1d0 [ 70.919037] ? lock_downgrade+0x7f0/0x7f0 [ 70.923178] ? __fget+0x1ca/0x2f0 [ 70.926850] ? __fget_light+0x166/0x200 [ 70.930989] ? __fdget+0xe/0x10 [ 70.934260] ? sockfd_lookup_light+0x1c/0x150 [ 70.938831] __sys_sendmsg+0xc1/0x140 [ 70.942622] ? SyS_shutdown+0x180/0x180 [ 70.946632] ? __sb_end_write+0xa4/0xd0 [ 70.950599] ? mutex_unlock+0xd/0x10 [ 70.954317] ? do_syscall_64+0x4c/0x5b0 [ 70.958279] ? __sys_sendmsg+0x140/0x140 [ 70.962337] SyS_sendmsg+0xd/0x20 [ 70.965805] do_syscall_64+0x1c7/0x5b0 [ 70.969681] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 70.974783] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 70.980233] RIP: 0033:0x459ef9 [ 70.983419] RSP: 002b:00007f5fa9badc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 70.991119] RAX: ffffffffffffffda RBX: 00007f5fa9badc90 RCX: 0000000000459ef9 [ 70.998492] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 71.005834] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 71.013091] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fa9bae6d4 [ 71.020772] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 71.062417] batman_adv: batadv0: Adding interface: bridge_slave_1 [ 71.068944] batman_adv: batadv0: The MTU of interface bridge_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. [ 71.094900] batman_adv: batadv0: Interface activated: bridge_slave_1 [ 71.102197] FAULT_INJECTION: forcing a failure. [ 71.102197] name failslab, interval 1, probability 0, space 0, times 0 [ 71.114969] CPU: 1 PID: 7219 Comm: syz-executor.2 Not tainted 4.14.173-syzkaller #0 [ 71.122868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.134438] Call Trace: [ 71.137027] dump_stack+0xf7/0x13b [ 71.140587] should_fail.cold.3+0x105/0x14b [ 71.144916] should_failslab+0xba/0xf0 [ 71.148811] kmem_cache_alloc_trace+0x2ea/0x7a0 [ 71.153609] ? __wake_up+0xe/0x10 [ 71.157116] ? netlink_broadcast_filtered+0x297/0x8f0 [ 71.162303] ? __alloc_skb+0x308/0x500 [ 71.166185] netdevice_event+0x16b/0x6d0 [ 71.170327] ? update_gid_event_work_handler+0xb0/0xb0 [ 71.175601] ? add_netdev_upper_ips+0x20/0x20 [ 71.180226] ? inetaddr_event+0x190/0x190 [ 71.184371] ? _add_netdev_ips+0x30/0x30 [ 71.188415] ? is_eth_port_of_netdev.part.7+0x1e0/0x1e0 [ 71.193771] ? rtmsg_ifinfo_event.part.27+0x7a/0xb0 [ 71.198974] notifier_call_chain+0xd6/0x150 [ 71.203294] raw_notifier_call_chain+0x11/0x20 [ 71.208381] call_netdevice_notifiers_info+0x4b/0x60 [ 71.213857] netdev_upper_dev_unlink+0xab/0xe0 [ 71.218427] ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30 [ 71.224471] bond_upper_dev_unlink.isra.45+0x33/0xc0 [ 71.229655] __bond_release_one+0x2c2/0x1370 [ 71.234177] ? bond_enslave+0x4a80/0x4a80 [ 71.238312] ? __lock_acquire+0x6a4/0x4500 [ 71.242554] bond_release+0xd/0x10 [ 71.246101] do_set_master+0xb6/0x1f0 [ 71.249891] do_setlink+0x9dd/0x2c50 [ 71.253596] ? rtnl_register+0x20/0x20 [ 71.257477] ? trace_hardirqs_off+0x10/0x10 [ 71.261789] ? __lock_acquire+0x6a4/0x4500 [ 71.266021] ? trace_hardirqs_on+0x10/0x10 [ 71.270249] ? __lock_acquire+0x6a4/0x4500 [ 71.274490] ? trace_hardirqs_off+0x10/0x10 [ 71.278895] ? trace_hardirqs_off+0x10/0x10 [ 71.283204] ? trace_hardirqs_off+0x10/0x10 [ 71.287530] rtnl_newlink+0xe0c/0x1390 [ 71.291407] ? memset+0x31/0x40 [ 71.294683] ? rtnl_newlink+0x6d0/0x1390 [ 71.298748] ? rtnl_link_unregister+0x270/0x270 [ 71.303421] ? finish_task_switch+0x178/0x650 [ 71.307904] ? finish_task_switch+0x14d/0x650 [ 71.313306] ? find_held_lock+0x36/0x1d0 [ 71.317365] ? __mutex_lock+0x8b7/0x14c0 [ 71.321421] ? lock_downgrade+0x7f0/0x7f0 [ 71.325559] ? do_raw_spin_unlock+0x16a/0x250 [ 71.330075] rtnetlink_rcv_msg+0x34f/0x9d0 [ 71.334313] ? rtnl_bridge_getlink+0x760/0x760 [ 71.338877] ? find_held_lock+0x36/0x1d0 [ 71.343473] netlink_rcv_skb+0x133/0x370 [ 71.347718] ? rtnl_bridge_getlink+0x760/0x760 [ 71.352295] ? netlink_ack+0xa00/0xa00 [ 71.356263] ? netlink_deliver_tap+0x8e/0x920 [ 71.360928] rtnetlink_rcv+0x10/0x20 [ 71.364639] netlink_unicast+0x40d/0x5f0 [ 71.369166] ? netlink_attachskb+0x6e0/0x6e0 [ 71.373619] netlink_sendmsg+0x730/0xbd0 [ 71.377782] ? netlink_unicast+0x5f0/0x5f0 [ 71.382004] ? selinux_socket_sendmsg+0x31/0x40 [ 71.386661] ? security_socket_sendmsg+0x6a/0xa0 [ 71.391421] ? netlink_unicast+0x5f0/0x5f0 [ 71.395802] sock_sendmsg+0xb5/0xf0 [ 71.399881] ___sys_sendmsg+0x625/0x920 [ 71.403875] ? trace_hardirqs_off+0x10/0x10 [ 71.408196] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 71.413113] ? find_held_lock+0x36/0x1d0 [ 71.417159] ? lock_downgrade+0x7f0/0x7f0 [ 71.421909] ? __fget+0x1ca/0x2f0 [ 71.425964] ? __fget_light+0x166/0x200 [ 71.430639] ? __fdget+0xe/0x10 [ 71.433915] ? sockfd_lookup_light+0x1c/0x150 [ 71.438409] __sys_sendmsg+0xc1/0x140 [ 71.442476] ? SyS_shutdown+0x180/0x180 [ 71.446822] ? __sb_end_write+0xa4/0xd0 [ 71.450829] ? mutex_unlock+0xd/0x10 [ 71.454547] ? do_syscall_64+0x4c/0x5b0 [ 71.458511] ? __sys_sendmsg+0x140/0x140 [ 71.462577] SyS_sendmsg+0xd/0x20 [ 71.466035] do_syscall_64+0x1c7/0x5b0 [ 71.469901] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 71.474730] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 71.480095] RIP: 0033:0x459ef9 [ 71.483289] RSP: 002b:00007fa8a10f3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 71.491101] RAX: ffffffffffffffda RBX: 00007fa8a10f3c90 RCX: 0000000000459ef9 [ 71.498618] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 71.506136] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 71.513793] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8a10f46d4 [ 71.521062] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 71.529358] bond0: Releasing backup interface bond_slave_0 [ 71.582257] batman_adv: batadv0: Adding interface: bond_slave_0 [ 71.588569] batman_adv: batadv0: The MTU of interface bond_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. [ 71.615285] batman_adv: batadv0: Not using interface bond_slave_0 (retrying later): interface not active [ 71.626500] FAULT_INJECTION: forcing a failure. [ 71.626500] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 71.638324] CPU: 1 PID: 7222 Comm: syz-executor.4 Not tainted 4.14.173-syzkaller #0 [ 71.646128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.656007] Call Trace: [ 71.658592] dump_stack+0xf7/0x13b [ 71.662220] should_fail.cold.3+0x105/0x14b [ 71.666926] ? do_set_master+0xb6/0x1f0 [ 71.671103] __alloc_pages_nodemask+0x1d5/0x770 [ 71.675780] ? __alloc_pages_slowpath+0x2650/0x2650 [ 71.680892] ? lock_downgrade+0x7f0/0x7f0 [ 71.685049] cache_grow_begin+0x80/0x3f0 [ 71.689110] kmem_cache_alloc_node_trace+0x6aa/0x780 [ 71.694327] __kmalloc_node_track_caller+0x3c/0x70 [ 71.699299] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 71.704158] __alloc_skb+0xc1/0x500 [ 71.708228] ? skb_trim+0x160/0x160 [ 71.711932] ? if_nlmsg_size+0x2d9/0x6f0 [ 71.715995] rtmsg_ifinfo_build_skb+0x68/0x120 [ 71.720657] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 71.725570] rtnetlink_event+0xc2/0x110 [ 71.729548] notifier_call_chain+0xd6/0x150 [ 71.734089] raw_notifier_call_chain+0x11/0x20 [ 71.738655] call_netdevice_notifiers_info+0x4b/0x60 [ 71.743858] netdev_upper_dev_unlink+0xab/0xe0 [ 71.748566] ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30 [ 71.754703] bond_upper_dev_unlink.isra.45+0x33/0xc0 [ 71.759808] __bond_release_one+0x2c2/0x1370 [ 71.764223] ? bond_enslave+0x4a80/0x4a80 [ 71.768465] ? trace_hardirqs_off+0x10/0x10 [ 71.772787] ? find_held_lock+0x36/0x1d0 [ 71.776966] bond_release+0xd/0x10 [ 71.780513] do_set_master+0xb6/0x1f0 [ 71.784306] do_setlink+0x9dd/0x2c50 [ 71.788002] ? is_bpf_text_address+0x7d/0xe0 [ 71.792405] ? kernel_text_address+0x79/0xf0 [ 71.796810] ? rtnl_register+0x20/0x20 [ 71.800687] ? __save_stack_trace+0x7e/0xd0 [ 71.804999] ? depot_save_stack+0x122/0x43a [ 71.809320] ? __mmdrop+0x15d/0x1c0 [ 71.812939] ? save_stack+0xa9/0xd0 [ 71.816559] ? save_stack_trace+0x16/0x20 [ 71.820689] ? save_stack+0x43/0xd0 [ 71.824314] ? kasan_slab_free+0x71/0xc0 [ 71.828788] ? kmem_cache_free+0x80/0x2d0 [ 71.832916] ? __mmdrop+0x15d/0x1c0 [ 71.836528] ? finish_task_switch+0x496/0x650 [ 71.841013] ? __schedule+0x788/0x1d20 [ 71.844890] ? schedule+0x7f/0x1b0 [ 71.848413] ? schedule_preempt_disabled+0x13/0x20 [ 71.853320] ? __mutex_lock+0xabc/0x14c0 [ 71.857361] ? mutex_lock_nested+0x16/0x20 [ 71.861579] ? rtnetlink_rcv_msg+0x2c1/0x9d0 [ 71.865982] ? netlink_rcv_skb+0x133/0x370 [ 71.870202] ? rtnetlink_rcv+0x10/0x20 [ 71.874076] ? netlink_unicast+0x40d/0x5f0 [ 71.878305] ? netlink_sendmsg+0x730/0xbd0 [ 71.882529] ? sock_sendmsg+0xb5/0xf0 [ 71.886318] ? ___sys_sendmsg+0x625/0x920 [ 71.890448] ? __sys_sendmsg+0xc1/0x140 [ 71.894413] ? SyS_sendmsg+0xd/0x20 [ 71.898027] ? do_syscall_64+0x1c7/0x5b0 [ 71.902074] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 71.907431] ? trace_hardirqs_off+0x10/0x10 [ 71.911740] ? debug_check_no_obj_freed+0x2f0/0x930 [ 71.916741] rtnl_newlink+0xe0c/0x1390 [ 71.920623] ? memset+0x31/0x40 [ 71.923898] ? rtnl_newlink+0x6d0/0x1390 [ 71.927941] ? __mmdrop+0x15d/0x1c0 [ 71.931563] ? __mmdrop+0x15d/0x1c0 [ 71.935180] ? rtnl_link_unregister+0x270/0x270 [ 71.939830] ? finish_task_switch+0x496/0x650 [ 71.944312] ? find_held_lock+0x36/0x1d0 [ 71.948372] ? __mutex_lock+0x8b7/0x14c0 [ 71.952424] ? lock_downgrade+0x7f0/0x7f0 [ 71.956562] ? do_raw_spin_unlock+0x16a/0x250 [ 71.961081] rtnetlink_rcv_msg+0x34f/0x9d0 [ 71.965320] ? rtnl_bridge_getlink+0x760/0x760 [ 71.969886] ? find_held_lock+0x36/0x1d0 [ 71.973928] netlink_rcv_skb+0x133/0x370 [ 71.977979] ? rtnl_bridge_getlink+0x760/0x760 [ 71.982555] ? netlink_ack+0xa00/0xa00 [ 71.986459] ? netlink_deliver_tap+0x8e/0x920 [ 71.990949] rtnetlink_rcv+0x10/0x20 [ 71.994664] netlink_unicast+0x40d/0x5f0 [ 71.998711] ? netlink_attachskb+0x6e0/0x6e0 [ 72.003107] netlink_sendmsg+0x730/0xbd0 [ 72.007162] ? netlink_unicast+0x5f0/0x5f0 [ 72.011387] ? selinux_socket_sendmsg+0x31/0x40 [ 72.016044] ? security_socket_sendmsg+0x6a/0xa0 [ 72.020782] ? netlink_unicast+0x5f0/0x5f0 [ 72.025101] sock_sendmsg+0xb5/0xf0 [ 72.028712] ___sys_sendmsg+0x625/0x920 [ 72.032665] ? trace_hardirqs_off+0x10/0x10 [ 72.036984] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 72.041745] ? find_held_lock+0x36/0x1d0 [ 72.045815] ? lock_downgrade+0x7f0/0x7f0 [ 72.049965] ? __fget+0x1ca/0x2f0 [ 72.053405] ? __fget_light+0x166/0x200 [ 72.057364] ? __fdget+0xe/0x10 [ 72.060635] ? sockfd_lookup_light+0x1c/0x150 [ 72.065223] __sys_sendmsg+0xc1/0x140 [ 72.069010] ? SyS_shutdown+0x180/0x180 [ 72.072973] ? __sb_end_write+0xa4/0xd0 [ 72.076931] ? mutex_unlock+0xd/0x10 [ 72.080640] ? do_syscall_64+0x4c/0x5b0 [ 72.084604] ? __sys_sendmsg+0x140/0x140 [ 72.088646] SyS_sendmsg+0xd/0x20 [ 72.092079] do_syscall_64+0x1c7/0x5b0 [ 72.095950] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 72.100792] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 72.105969] RIP: 0033:0x459ef9 [ 72.109143] RSP: 002b:00007fd91524ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 72.117107] RAX: ffffffffffffffda RBX: 00007fd91524ec90 RCX: 0000000000459ef9 [ 72.124356] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 72.131668] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 72.138941] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91524f6d4 [ 72.146199] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 72.154595] bond0: Releasing backup interface bond_slave_1 [ 72.193102] batman_adv: batadv0: Adding interface: bond_slave_1 [ 72.199256] batman_adv: batadv0: The MTU of interface bond_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. [ 72.224534] batman_adv: batadv0: Not using interface bond_slave_1 (retrying later): interface not active [ 72.236168] FAULT_INJECTION: forcing a failure. [ 72.236168] name failslab, interval 1, probability 0, space 0, times 0 [ 72.267226] CPU: 0 PID: 7228 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0 [ 72.275069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.284489] Call Trace: [ 72.287066] dump_stack+0xf7/0x13b [ 72.290615] should_fail.cold.3+0x105/0x14b [ 72.294921] should_failslab+0xba/0xf0 [ 72.298800] kmem_cache_alloc_trace+0x2ea/0x7a0 [ 72.303451] ? __wake_up+0xe/0x10 [ 72.306882] ? netlink_broadcast_filtered+0x297/0x8f0 [ 72.312049] ? __alloc_skb+0x308/0x500 [ 72.315922] netdevice_event+0x16b/0x6d0 [ 72.320137] ? update_gid_event_work_handler+0xb0/0xb0 [ 72.325422] ? add_netdev_upper_ips+0x20/0x20 [ 72.329914] ? inetaddr_event+0x190/0x190 [ 72.334072] ? _add_netdev_ips+0x30/0x30 [ 72.338161] ? is_eth_port_of_netdev.part.7+0x1e0/0x1e0 [ 72.343516] ? rtmsg_ifinfo_event.part.27+0x7a/0xb0 [ 72.348515] notifier_call_chain+0xd6/0x150 [ 72.352831] raw_notifier_call_chain+0x11/0x20 [ 72.357393] call_netdevice_notifiers_info+0x4b/0x60 [ 72.362473] netdev_upper_dev_unlink+0xab/0xe0 [ 72.367034] ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30 [ 72.373077] bond_upper_dev_unlink.isra.45+0x33/0xc0 [ 72.378157] __bond_release_one+0x2c2/0x1370 [ 72.382548] ? bond_enslave+0x4a80/0x4a80 [ 72.386686] ? trace_hardirqs_off+0x10/0x10 [ 72.390987] ? cpumask_next+0x21/0x30 [ 72.394772] ? cpumask_next_and+0x4d/0x90 [ 72.398903] ? find_held_lock+0x36/0x1d0 [ 72.402947] bond_release+0xd/0x10 [ 72.406513] do_set_master+0xb6/0x1f0 [ 72.410306] do_setlink+0x9dd/0x2c50 [ 72.414010] ? __lock_acquire+0x6a4/0x4500 [ 72.418222] ? rtnl_register+0x20/0x20 [ 72.422092] ? trace_hardirqs_on+0x10/0x10 [ 72.426324] ? trace_hardirqs_on+0x10/0x10 [ 72.430535] ? trace_hardirqs_off+0x10/0x10 [ 72.434836] ? find_held_lock+0x36/0x1d0 [ 72.438891] ? find_held_lock+0x36/0x1d0 [ 72.442934] ? free_one_page+0x9c4/0x1050 [ 72.447060] ? lock_downgrade+0x7f0/0x7f0 [ 72.451185] ? __this_cpu_preempt_check+0x13/0x20 [ 72.456007] ? do_raw_spin_unlock+0x16a/0x250 [ 72.460830] rtnl_newlink+0xe0c/0x1390 [ 72.464713] ? memset+0x31/0x40 [ 72.467972] ? rtnl_newlink+0x6d0/0x1390 [ 72.472018] ? rtnl_link_unregister+0x270/0x270 [ 72.476665] ? finish_task_switch+0x448/0x650 [ 72.481155] ? find_held_lock+0x36/0x1d0 [ 72.485199] ? __mutex_lock+0x8b7/0x14c0 [ 72.489238] ? lock_downgrade+0x7f0/0x7f0 [ 72.493368] ? do_raw_spin_unlock+0x16a/0x250 [ 72.497871] rtnetlink_rcv_msg+0x34f/0x9d0 [ 72.502087] ? rtnl_bridge_getlink+0x760/0x760 [ 72.506652] ? find_held_lock+0x36/0x1d0 [ 72.510700] netlink_rcv_skb+0x133/0x370 [ 72.514743] ? rtnl_bridge_getlink+0x760/0x760 [ 72.519308] ? netlink_ack+0xa00/0xa00 [ 72.523174] ? netlink_deliver_tap+0x8e/0x920 [ 72.527653] rtnetlink_rcv+0x10/0x20 [ 72.531358] netlink_unicast+0x40d/0x5f0 [ 72.535398] ? netlink_attachskb+0x6e0/0x6e0 [ 72.539790] netlink_sendmsg+0x730/0xbd0 [ 72.543842] ? netlink_unicast+0x5f0/0x5f0 [ 72.548172] ? selinux_socket_sendmsg+0x31/0x40 [ 72.552941] ? security_socket_sendmsg+0x6a/0xa0 [ 72.557679] ? netlink_unicast+0x5f0/0x5f0 [ 72.561895] sock_sendmsg+0xb5/0xf0 [ 72.565517] ___sys_sendmsg+0x625/0x920 [ 72.569486] ? trace_hardirqs_off+0x10/0x10 [ 72.573802] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 72.578558] ? find_held_lock+0x36/0x1d0 [ 72.582616] ? lock_downgrade+0x7f0/0x7f0 [ 72.586747] ? __fget+0x1ca/0x2f0 [ 72.590179] ? __fget_light+0x166/0x200 [ 72.594148] ? __fdget+0xe/0x10 [ 72.597405] ? sockfd_lookup_light+0x1c/0x150 [ 72.601893] __sys_sendmsg+0xc1/0x140 [ 72.605674] ? SyS_shutdown+0x180/0x180 [ 72.609637] ? __sb_end_write+0xa4/0xd0 [ 72.613611] ? mutex_unlock+0xd/0x10 [ 72.617459] ? do_syscall_64+0x4c/0x5b0 [ 72.621543] ? __sys_sendmsg+0x140/0x140 [ 72.625593] SyS_sendmsg+0xd/0x20 [ 72.629027] do_syscall_64+0x1c7/0x5b0 [ 72.632894] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 72.637735] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 72.642904] RIP: 0033:0x459ef9 [ 72.646073] RSP: 002b:00007f2d8618bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 72.653761] RAX: ffffffffffffffda RBX: 00007f2d8618bc90 RCX: 0000000000459ef9 [ 72.661009] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 72.668267] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 72.676822] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d8618c6d4 [ 72.684093] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 72.696356] bond0: Releasing backup interface bond_slave_1 [ 72.731961] batman_adv: batadv0: Adding interface: bond_slave_1 [ 72.738205] batman_adv: batadv0: The MTU of interface bond_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. [ 72.763559] batman_adv: batadv0: Not using interface bond_slave_1 (retrying later): interface not active [ 72.773662] FAULT_INJECTION: forcing a failure. [ 72.773662] name failslab, interval 1, probability 0, space 0, times 0 [ 72.786085] CPU: 0 PID: 7231 Comm: syz-executor.1 Not tainted 4.14.173-syzkaller #0 [ 72.793885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.803229] Call Trace: [ 72.805813] dump_stack+0xf7/0x13b [ 72.809349] should_fail.cold.3+0x105/0x14b [ 72.813667] should_failslab+0xba/0xf0 [ 72.817546] kmem_cache_alloc_node_trace+0x5a/0x780 [ 72.822554] __kmalloc_node_track_caller+0x3c/0x70 [ 72.827478] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 72.832227] pskb_expand_head+0x106/0xc20 [ 72.836355] ? kasan_kmalloc+0xc7/0xe0 [ 72.840236] netlink_trim+0x18f/0x200 [ 72.844026] netlink_broadcast_filtered+0x57/0x8f0 [ 72.848930] ? __alloc_skb+0x308/0x500 [ 72.852798] nlmsg_notify+0x6b/0x120 [ 72.856492] rtmsg_ifinfo_event.part.27+0x7a/0xb0 [ 72.861311] rtnetlink_event+0xc2/0x110 [ 72.865539] notifier_call_chain+0xd6/0x150 [ 72.869867] raw_notifier_call_chain+0x11/0x20 [ 72.874455] call_netdevice_notifiers_info+0x4b/0x60 [ 72.879554] netdev_upper_dev_unlink+0xab/0xe0 [ 72.884520] ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30 [ 72.890650] bond_upper_dev_unlink.isra.45+0x33/0xc0 [ 72.895855] __bond_release_one+0x2c2/0x1370 [ 72.900371] ? bond_enslave+0x4a80/0x4a80 [ 72.904511] ? __lock_acquire+0x6a4/0x4500 [ 72.908736] bond_release+0xd/0x10 [ 72.912303] do_set_master+0xb6/0x1f0 [ 72.916226] do_setlink+0x9dd/0x2c50 [ 72.920029] ? rtnl_register+0x20/0x20 [ 72.923901] ? trace_hardirqs_off+0x10/0x10 [ 72.928206] ? __lock_acquire+0x6a4/0x4500 [ 72.932425] ? trace_hardirqs_on+0x10/0x10 [ 72.936643] ? __lock_acquire+0x6a4/0x4500 [ 72.940867] ? trace_hardirqs_off+0x10/0x10 [ 72.945187] ? trace_hardirqs_off+0x10/0x10 [ 72.949536] rtnl_newlink+0xe0c/0x1390 [ 72.953418] ? memset+0x31/0x40 [ 72.956681] ? rtnl_newlink+0x6d0/0x1390 [ 72.960739] ? rtnl_link_unregister+0x270/0x270 [ 72.965396] ? finish_task_switch+0x178/0x650 [ 72.969870] ? finish_task_switch+0x14d/0x650 [ 72.974368] ? find_held_lock+0x36/0x1d0 [ 72.978419] ? __mutex_lock+0x8b7/0x14c0 [ 72.982498] ? lock_downgrade+0x7f0/0x7f0 [ 72.986663] ? do_raw_spin_unlock+0x16a/0x250 [ 72.991205] rtnetlink_rcv_msg+0x34f/0x9d0 [ 72.995433] ? rtnl_bridge_getlink+0x760/0x760 [ 73.000004] ? find_held_lock+0x36/0x1d0 [ 73.004056] netlink_rcv_skb+0x133/0x370 [ 73.008100] ? rtnl_bridge_getlink+0x760/0x760 [ 73.012661] ? netlink_ack+0xa00/0xa00 [ 73.016526] ? netlink_deliver_tap+0x8e/0x920 [ 73.021004] rtnetlink_rcv+0x10/0x20 [ 73.024697] netlink_unicast+0x40d/0x5f0 [ 73.028740] ? netlink_attachskb+0x6e0/0x6e0 [ 73.033172] netlink_sendmsg+0x730/0xbd0 [ 73.037213] ? netlink_unicast+0x5f0/0x5f0 [ 73.041437] ? selinux_socket_sendmsg+0x31/0x40 [ 73.046088] ? security_socket_sendmsg+0x6a/0xa0 [ 73.050840] ? netlink_unicast+0x5f0/0x5f0 [ 73.055052] sock_sendmsg+0xb5/0xf0 [ 73.058660] ___sys_sendmsg+0x625/0x920 [ 73.062613] ? trace_hardirqs_off+0x10/0x10 [ 73.066914] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 73.071653] ? find_held_lock+0x36/0x1d0 [ 73.075709] ? lock_downgrade+0x7f0/0x7f0 [ 73.079841] ? __fget+0x1ca/0x2f0 [ 73.083287] ? __fget_light+0x166/0x200 [ 73.087238] ? __fdget+0xe/0x10 [ 73.090514] ? sockfd_lookup_light+0x1c/0x150 [ 73.095001] __sys_sendmsg+0xc1/0x140 [ 73.098781] ? SyS_shutdown+0x180/0x180 [ 73.102733] ? __sb_end_write+0xa4/0xd0 [ 73.106686] ? mutex_unlock+0xd/0x10 [ 73.110385] ? do_syscall_64+0x4c/0x5b0 [ 73.114338] ? __sys_sendmsg+0x140/0x140 [ 73.118471] SyS_sendmsg+0xd/0x20 [ 73.122219] do_syscall_64+0x1c7/0x5b0 [ 73.126154] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 73.131147] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 73.136320] RIP: 0033:0x459ef9 [ 73.139501] RSP: 002b:00007f168d5e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.147212] RAX: ffffffffffffffda RBX: 00007f168d5e9c90 RCX: 0000000000459ef9 [ 73.154553] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 73.161809] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 73.169066] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f168d5ea6d4 [ 73.176326] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 73.185893] bond0: Releasing backup interface bond_slave_0 [ 73.231559] batman_adv: batadv0: Adding interface: bond_slave_0 [ 73.237649] batman_adv: batadv0: The MTU of interface bond_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. [ 73.262912] batman_adv: batadv0: Not using interface bond_slave_0 (retrying later): interface not active [ 73.273469] FAULT_INJECTION: forcing a failure. [ 73.273469] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 73.285273] CPU: 0 PID: 7234 Comm: syz-executor.5 Not tainted 4.14.173-syzkaller #0 [ 73.293045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.302390] Call Trace: [ 73.304980] dump_stack+0xf7/0x13b [ 73.308526] should_fail.cold.3+0x105/0x14b [ 73.312829] ? do_set_master+0xb6/0x1f0 [ 73.316786] __alloc_pages_nodemask+0x1d5/0x770 [ 73.321436] ? __alloc_pages_slowpath+0x2650/0x2650 [ 73.326433] ? lock_downgrade+0x7f0/0x7f0 [ 73.330565] cache_grow_begin+0x80/0x3f0 [ 73.334711] kmem_cache_alloc_node_trace+0x6aa/0x780 [ 73.339811] __kmalloc_node_track_caller+0x3c/0x70 [ 73.344731] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 73.349469] __alloc_skb+0xc1/0x500 [ 73.353078] ? skb_trim+0x160/0x160 [ 73.356683] ? if_nlmsg_size+0x2d9/0x6f0 [ 73.360734] rtmsg_ifinfo_build_skb+0x68/0x120 [ 73.365300] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 73.370125] rtnetlink_event+0xc2/0x110 [ 73.374080] notifier_call_chain+0xd6/0x150 [ 73.378382] raw_notifier_call_chain+0x11/0x20 [ 73.382964] call_netdevice_notifiers_info+0x4b/0x60 [ 73.388047] netdev_upper_dev_unlink+0xab/0xe0 [ 73.392608] ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30 [ 73.398662] bond_upper_dev_unlink.isra.45+0x33/0xc0 [ 73.403756] __bond_release_one+0x2c2/0x1370 [ 73.408202] ? bond_enslave+0x4a80/0x4a80 [ 73.412335] ? __lock_acquire+0x6a4/0x4500 [ 73.416554] bond_release+0xd/0x10 [ 73.420079] do_set_master+0xb6/0x1f0 [ 73.423860] do_setlink+0x9dd/0x2c50 [ 73.427557] ? rtnl_register+0x20/0x20 [ 73.431462] ? trace_hardirqs_off+0x10/0x10 [ 73.435764] ? __lock_acquire+0x6a4/0x4500 [ 73.439991] ? trace_hardirqs_on+0x10/0x10 [ 73.444206] ? __lock_acquire+0x6a4/0x4500 [ 73.448417] ? trace_hardirqs_off+0x10/0x10 [ 73.452720] ? trace_hardirqs_off+0x10/0x10 [ 73.457038] rtnl_newlink+0xe0c/0x1390 [ 73.460912] ? memset+0x31/0x40 [ 73.464167] ? rtnl_newlink+0x6d0/0x1390 [ 73.468213] ? rtnl_link_unregister+0x270/0x270 [ 73.472867] ? finish_task_switch+0x178/0x650 [ 73.477337] ? finish_task_switch+0x14d/0x650 [ 73.481810] ? find_held_lock+0x36/0x1d0 [ 73.485854] ? __mutex_lock+0x8b7/0x14c0 [ 73.489902] ? lock_downgrade+0x7f0/0x7f0 [ 73.494031] ? do_raw_spin_unlock+0x16a/0x250 [ 73.498519] rtnetlink_rcv_msg+0x34f/0x9d0 [ 73.502834] ? rtnl_bridge_getlink+0x760/0x760 [ 73.507410] ? find_held_lock+0x36/0x1d0 [ 73.511465] netlink_rcv_skb+0x133/0x370 [ 73.515515] ? rtnl_bridge_getlink+0x760/0x760 [ 73.520076] ? netlink_ack+0xa00/0xa00 [ 73.523975] ? netlink_deliver_tap+0x8e/0x920 [ 73.528460] rtnetlink_rcv+0x10/0x20 [ 73.532186] netlink_unicast+0x40d/0x5f0 [ 73.536244] ? netlink_attachskb+0x6e0/0x6e0 [ 73.540646] netlink_sendmsg+0x730/0xbd0 [ 73.544863] ? netlink_unicast+0x5f0/0x5f0 [ 73.549098] ? selinux_socket_sendmsg+0x31/0x40 [ 73.553744] ? security_socket_sendmsg+0x6a/0xa0 [ 73.558480] ? netlink_unicast+0x5f0/0x5f0 [ 73.562706] sock_sendmsg+0xb5/0xf0 [ 73.566323] ___sys_sendmsg+0x625/0x920 [ 73.570301] ? trace_hardirqs_off+0x10/0x10 [ 73.574604] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 73.579392] ? find_held_lock+0x36/0x1d0 [ 73.583454] ? lock_downgrade+0x7f0/0x7f0 [ 73.587594] ? __fget+0x1ca/0x2f0 [ 73.591034] ? __fget_light+0x166/0x200 [ 73.594990] ? __fdget+0xe/0x10 [ 73.598324] ? sockfd_lookup_light+0x1c/0x150 [ 73.602939] __sys_sendmsg+0xc1/0x140 [ 73.606737] ? SyS_shutdown+0x180/0x180 [ 73.610787] ? __sb_end_write+0xa4/0xd0 [ 73.614905] ? mutex_unlock+0xd/0x10 [ 73.618608] ? do_syscall_64+0x4c/0x5b0 [ 73.622592] ? __sys_sendmsg+0x140/0x140 [ 73.626635] SyS_sendmsg+0xd/0x20 [ 73.630084] do_syscall_64+0x1c7/0x5b0 [ 73.633952] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 73.638786] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 73.643963] RIP: 0033:0x459ef9 [ 73.647186] RSP: 002b:00007f5fa9badc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.654874] RAX: ffffffffffffffda RBX: 00007f5fa9badc90 RCX: 0000000000459ef9 [ 73.662125] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 73.669399] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 73.676731] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fa9bae6d4 [ 73.684129] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 73.697453] bond0: Releasing backup interface bond_slave_0 [ 73.742331] batman_adv: batadv0: Adding interface: bond_slave_0 [ 73.748706] batman_adv: batadv0: The MTU of interface bond_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. [ 73.773951] batman_adv: batadv0: Not using interface bond_slave_0 (retrying later): interface not active [ 73.784116] FAULT_INJECTION: forcing a failure. [ 73.784116] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 73.796092] CPU: 0 PID: 7237 Comm: syz-executor.2 Not tainted 4.14.173-syzkaller #0 [ 73.804177] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.813519] Call Trace: [ 73.816104] dump_stack+0xf7/0x13b [ 73.819694] should_fail.cold.3+0x105/0x14b [ 73.824021] ? do_set_master+0xb6/0x1f0 [ 73.828004] __alloc_pages_nodemask+0x1d5/0x770 [ 73.832658] ? __alloc_pages_slowpath+0x2650/0x2650 [ 73.837664] ? lock_downgrade+0x7f0/0x7f0 [ 73.841797] cache_grow_begin+0x80/0x3f0 [ 73.845847] kmem_cache_alloc_node_trace+0x6aa/0x780 [ 73.850942] __kmalloc_node_track_caller+0x3c/0x70 [ 73.855849] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 73.860593] __alloc_skb+0xc1/0x500 [ 73.864197] ? skb_trim+0x160/0x160 [ 73.867815] ? if_nlmsg_size+0x2d9/0x6f0 [ 73.871864] rtmsg_ifinfo_build_skb+0x68/0x120 [ 73.876422] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 73.881250] rtnetlink_event+0xc2/0x110 [ 73.885201] notifier_call_chain+0xd6/0x150 [ 73.889497] raw_notifier_call_chain+0x11/0x20 [ 73.894054] call_netdevice_notifiers_info+0x4b/0x60 [ 73.899137] netdev_upper_dev_unlink+0xab/0xe0 [ 73.904315] ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30 [ 73.910355] bond_upper_dev_unlink.isra.45+0x33/0xc0 [ 73.915607] __bond_release_one+0x2c2/0x1370 [ 73.919989] ? trace_hardirqs_on+0x10/0x10 [ 73.924215] ? bond_enslave+0x4a80/0x4a80 [ 73.928350] ? find_held_lock+0x36/0x1d0 [ 73.932395] ? trace_hardirqs_off+0x10/0x10 [ 73.936700] ? trace_hardirqs_off+0x10/0x10 [ 73.941007] ? trace_hardirqs_off+0x10/0x10 [ 73.945342] ? lock_downgrade+0x7f0/0x7f0 [ 73.949466] bond_release+0xd/0x10 [ 73.952981] do_set_master+0xb6/0x1f0 [ 73.956759] do_setlink+0x9dd/0x2c50 [ 73.960450] ? rtnl_register+0x20/0x20 [ 73.964322] ? __lock_acquire+0x6a4/0x4500 [ 73.968535] ? load_balance+0xb38/0x2190 [ 73.972623] ? lock_downgrade+0x7f0/0x7f0 [ 73.976841] ? lock_pin_lock+0x340/0x340 [ 73.980909] ? __lock_acquire+0x6a4/0x4500 [ 73.985176] ? trace_hardirqs_off+0x10/0x10 [ 73.989503] ? __lock_is_held+0xb5/0x140 [ 73.993551] ? trace_hardirqs_off+0x10/0x10 [ 73.997896] ? trace_hardirqs_off+0x10/0x10 [ 74.002287] rtnl_newlink+0xe0c/0x1390 [ 74.006150] ? memset+0x31/0x40 [ 74.009406] ? rtnl_newlink+0x6d0/0x1390 [ 74.013449] ? rtnl_link_unregister+0x270/0x270 [ 74.018091] ? finish_task_switch+0x178/0x650 [ 74.022558] ? finish_task_switch+0x14d/0x650 [ 74.027030] ? find_held_lock+0x36/0x1d0 [ 74.031073] ? __mutex_lock+0x8b7/0x14c0 [ 74.035117] ? lock_downgrade+0x7f0/0x7f0 [ 74.039260] ? do_raw_spin_unlock+0x16a/0x250 [ 74.043768] rtnetlink_rcv_msg+0x34f/0x9d0 [ 74.047985] ? rtnl_bridge_getlink+0x760/0x760 [ 74.052561] ? find_held_lock+0x36/0x1d0 [ 74.056630] netlink_rcv_skb+0x133/0x370 [ 74.060673] ? rtnl_bridge_getlink+0x760/0x760 [ 74.065238] ? netlink_ack+0xa00/0xa00 [ 74.069105] ? netlink_deliver_tap+0x8e/0x920 [ 74.073579] rtnetlink_rcv+0x10/0x20 [ 74.077278] netlink_unicast+0x40d/0x5f0 [ 74.081323] ? netlink_attachskb+0x6e0/0x6e0 [ 74.085715] netlink_sendmsg+0x730/0xbd0 [ 74.089761] ? netlink_unicast+0x5f0/0x5f0 [ 74.093978] ? selinux_socket_sendmsg+0x31/0x40 [ 74.098622] ? security_socket_sendmsg+0x6a/0xa0 [ 74.103447] ? netlink_unicast+0x5f0/0x5f0 [ 74.107670] sock_sendmsg+0xb5/0xf0 [ 74.111273] ___sys_sendmsg+0x625/0x920 [ 74.115223] ? trace_hardirqs_off+0x10/0x10 [ 74.119540] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 74.124278] ? find_held_lock+0x36/0x1d0 [ 74.128317] ? lock_downgrade+0x7f0/0x7f0 [ 74.132457] ? __fget+0x1ca/0x2f0 [ 74.135921] ? __fget_light+0x166/0x200 [ 74.139879] ? __fdget+0xe/0x10 [ 74.143140] ? sockfd_lookup_light+0x1c/0x150 [ 74.147618] __sys_sendmsg+0xc1/0x140 [ 74.151417] ? SyS_shutdown+0x180/0x180 [ 74.155383] ? __sb_end_write+0xa4/0xd0 [ 74.159342] ? mutex_unlock+0xd/0x10 [ 74.163049] ? do_syscall_64+0x4c/0x5b0 [ 74.167014] ? __sys_sendmsg+0x140/0x140 [ 74.171051] SyS_sendmsg+0xd/0x20 [ 74.174480] do_syscall_64+0x1c7/0x5b0 [ 74.178354] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 74.183198] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 74.188367] RIP: 0033:0x459ef9 [ 74.192320] RSP: 002b:00007fa8a10f3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 74.200028] RAX: ffffffffffffffda RBX: 00007fa8a10f3c90 RCX: 0000000000459ef9 [ 74.207281] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 74.214528] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 74.221775] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8a10f46d4 [ 74.229030] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 74.252063] bond0: Releasing backup interface bond_slave_1 [ 74.282968] batman_adv: batadv0: Adding interface: bond_slave_1 [ 74.289118] batman_adv: batadv0: The MTU of interface bond_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. [ 74.314767] batman_adv: batadv0: Not using interface bond_slave_1 (retrying later): interface not active [ 74.338998] FAULT_INJECTION: forcing a failure. [ 74.338998] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 74.350826] CPU: 1 PID: 7241 Comm: syz-executor.4 Not tainted 4.14.173-syzkaller #0 [ 74.358617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.368100] Call Trace: [ 74.370705] dump_stack+0xf7/0x13b [ 74.374254] should_fail.cold.3+0x105/0x14b [ 74.378581] ? rtnl_newlink+0xe0c/0x1390 [ 74.382635] __alloc_pages_nodemask+0x1d5/0x770 [ 74.387292] ? __alloc_pages_slowpath+0x2650/0x2650 [ 74.392296] ? lock_downgrade+0x7f0/0x7f0 [ 74.396434] cache_grow_begin+0x80/0x3f0 [ 74.400491] kmem_cache_alloc_node_trace+0x6aa/0x780 [ 74.405590] __kmalloc_node_track_caller+0x3c/0x70 [ 74.410514] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 74.415271] __alloc_skb+0xc1/0x500 [ 74.418888] ? skb_trim+0x160/0x160 [ 74.422497] ? if_nlmsg_size+0x2d9/0x6f0 [ 74.426541] rtmsg_ifinfo_build_skb+0x68/0x120 [ 74.431121] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 74.435951] rtmsg_ifinfo+0x4a/0x70 [ 74.439574] dev_close_many+0x287/0x610 [ 74.443567] ? list_netdevice+0x4b0/0x4b0 [ 74.447702] ? mark_held_locks+0xc7/0x130 [ 74.451874] ? dev_mc_unsync+0x165/0x1a5 [ 74.455934] dev_close.part.89+0xe5/0x190 [ 74.460085] ? dev_close_many+0x610/0x610 [ 74.464226] ? dev_mc_unsync+0x165/0x1a5 [ 74.468395] ? __local_bh_enable_ip+0x9c/0x180 [ 74.472973] ? _raw_spin_unlock_bh+0x30/0x40 [ 74.477379] dev_close+0x40/0x50 [ 74.480759] team_port_del+0x2c0/0x770 [ 74.484651] team_del_slave+0x34/0x70 [ 74.488445] do_set_master+0xb6/0x1f0 [ 74.492242] do_setlink+0x9dd/0x2c50 [ 74.495958] ? rtnl_register+0x20/0x20 [ 74.499836] ? trace_hardirqs_on+0x10/0x10 [ 74.504168] ? trace_hardirqs_off+0x10/0x10 [ 74.508476] ? find_held_lock+0x36/0x1d0 [ 74.512531] ? find_held_lock+0x36/0x1d0 [ 74.516682] ? free_one_page+0x9c4/0x1050 [ 74.520826] ? lock_downgrade+0x7f0/0x7f0 [ 74.524975] ? __this_cpu_preempt_check+0x13/0x20 [ 74.530429] ? do_raw_spin_unlock+0x16a/0x250 [ 74.534931] rtnl_newlink+0xe0c/0x1390 [ 74.538817] ? rtnl_newlink+0x6d0/0x1390 [ 74.542910] ? rtnl_link_unregister+0x270/0x270 [ 74.547576] ? finish_task_switch+0x448/0x650 [ 74.552070] ? find_held_lock+0x36/0x1d0 [ 74.556205] ? __mutex_lock+0x8b7/0x14c0 [ 74.560273] ? lock_downgrade+0x7f0/0x7f0 [ 74.564421] ? do_raw_spin_unlock+0x16a/0x250 [ 74.568928] rtnetlink_rcv_msg+0x34f/0x9d0 [ 74.573181] ? rtnl_bridge_getlink+0x760/0x760 [ 74.577761] ? find_held_lock+0x36/0x1d0 [ 74.581816] netlink_rcv_skb+0x133/0x370 [ 74.585941] ? rtnl_bridge_getlink+0x760/0x760 [ 74.590518] ? netlink_ack+0xa00/0xa00 [ 74.594406] ? netlink_deliver_tap+0x8e/0x920 [ 74.598902] rtnetlink_rcv+0x10/0x20 [ 74.602603] netlink_unicast+0x40d/0x5f0 [ 74.606648] ? netlink_attachskb+0x6e0/0x6e0 [ 74.611072] netlink_sendmsg+0x730/0xbd0 [ 74.615135] ? netlink_unicast+0x5f0/0x5f0 [ 74.619384] ? selinux_socket_sendmsg+0x31/0x40 [ 74.624044] ? security_socket_sendmsg+0x6a/0xa0 [ 74.628798] ? netlink_unicast+0x5f0/0x5f0 [ 74.633014] sock_sendmsg+0xb5/0xf0 [ 74.636750] ___sys_sendmsg+0x625/0x920 [ 74.640726] ? trace_hardirqs_off+0x10/0x10 [ 74.645083] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 74.649835] ? find_held_lock+0x36/0x1d0 [ 74.654394] ? lock_downgrade+0x7f0/0x7f0 [ 74.658534] ? __fget+0x1ca/0x2f0 [ 74.661983] ? __fget_light+0x166/0x200 [ 74.665968] ? __fdget+0xe/0x10 [ 74.669243] ? sockfd_lookup_light+0x1c/0x150 [ 74.673742] __sys_sendmsg+0xc1/0x140 [ 74.677532] ? SyS_shutdown+0x180/0x180 [ 74.681706] ? __sb_end_write+0xa4/0xd0 [ 74.685924] ? mutex_unlock+0xd/0x10 [ 74.689630] ? do_syscall_64+0x4c/0x5b0 [ 74.693706] ? __sys_sendmsg+0x140/0x140 [ 74.697758] SyS_sendmsg+0xd/0x20 [ 74.701205] do_syscall_64+0x1c7/0x5b0 [ 74.705173] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 74.710016] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 74.715194] RIP: 0033:0x459ef9 [ 74.718372] RSP: 002b:00007fd91524ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 74.726338] RAX: ffffffffffffffda RBX: 00007fd91524ec90 RCX: 0000000000459ef9 [ 74.733594] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 74.740852] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 74.748116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91524f6d4 [ 74.755732] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 74.766367] team0: Port device team_slave_0 removed [ 74.772384] batman_adv: batadv0: Adding interface: team_slave_0 [ 74.778452] batman_adv: batadv0: The MTU of interface team_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. [ 74.806776] batman_adv: batadv0: Not using interface team_slave_0 (retrying later): interface not active [ 74.817700] FAULT_INJECTION: forcing a failure. [ 74.817700] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 74.829635] CPU: 0 PID: 7246 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0 [ 74.837410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.846792] Call Trace: [ 74.849414] dump_stack+0xf7/0x13b [ 74.852981] should_fail.cold.3+0x105/0x14b [ 74.857543] __alloc_pages_nodemask+0x1d5/0x770 [ 74.862230] ? __alloc_pages_slowpath+0x2650/0x2650 [ 74.867300] cache_grow_begin+0x80/0x3f0 [ 74.871477] kmem_cache_alloc_node_trace+0x6aa/0x780 [ 74.876604] __kmalloc_node_track_caller+0x3c/0x70 [ 74.881530] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 74.886266] pskb_expand_head+0x106/0xc20 [ 74.890408] ? kasan_kmalloc+0xc7/0xe0 [ 74.894299] netlink_trim+0x18f/0x200 [ 74.898081] netlink_broadcast_filtered+0x57/0x8f0 [ 74.903051] ? __alloc_skb+0x308/0x500 [ 74.906931] nlmsg_notify+0x6b/0x120 [ 74.910671] rtmsg_ifinfo_event.part.27+0x7a/0xb0 [ 74.915592] rtmsg_ifinfo+0x4a/0x70 [ 74.919199] dev_close_many+0x287/0x610 [ 74.923152] ? list_netdevice+0x4b0/0x4b0 [ 74.927281] ? mark_held_locks+0xc7/0x130 [ 74.931406] ? dev_mc_unsync+0x165/0x1a5 [ 74.935450] dev_close.part.89+0xe5/0x190 [ 74.939571] ? dev_close_many+0x610/0x610 [ 74.943692] ? dev_mc_unsync+0x165/0x1a5 [ 74.947905] ? __local_bh_enable_ip+0x9c/0x180 [ 74.952463] ? _raw_spin_unlock_bh+0x30/0x40 [ 74.956849] dev_close+0x40/0x50 [ 74.960206] team_port_del+0x2c0/0x770 [ 74.964076] team_del_slave+0x34/0x70 [ 74.967871] do_set_master+0xb6/0x1f0 [ 74.971651] do_setlink+0x9dd/0x2c50 [ 74.975352] ? find_held_lock+0x36/0x1d0 [ 74.979394] ? rtnl_register+0x20/0x20 [ 74.983291] ? load_balance+0xb38/0x2190 [ 74.987348] ? lock_downgrade+0x7f0/0x7f0 [ 74.991469] ? lock_pin_lock+0x340/0x340 [ 74.995525] ? __lock_acquire+0x6a4/0x4500 [ 74.999737] ? trace_hardirqs_off+0x10/0x10 [ 75.004046] ? __lock_is_held+0xb5/0x140 [ 75.008101] ? trace_hardirqs_off+0x10/0x10 [ 75.012403] rtnl_newlink+0xe0c/0x1390 [ 75.016437] ? rtnl_newlink+0x6d0/0x1390 [ 75.020493] ? rtnl_link_unregister+0x270/0x270 [ 75.025146] ? finish_task_switch+0x178/0x650 [ 75.029614] ? finish_task_switch+0x14d/0x650 [ 75.034089] ? find_held_lock+0x36/0x1d0 [ 75.038130] ? __mutex_lock+0x8b7/0x14c0 [ 75.042173] ? lock_downgrade+0x7f0/0x7f0 [ 75.046296] ? do_raw_spin_unlock+0x16a/0x250 [ 75.050789] rtnetlink_rcv_msg+0x34f/0x9d0 [ 75.055010] ? rtnl_bridge_getlink+0x760/0x760 [ 75.059569] ? find_held_lock+0x36/0x1d0 [ 75.063628] netlink_rcv_skb+0x133/0x370 [ 75.067674] ? rtnl_bridge_getlink+0x760/0x760 [ 75.072241] ? netlink_ack+0xa00/0xa00 [ 75.076103] ? netlink_deliver_tap+0x8e/0x920 [ 75.080584] rtnetlink_rcv+0x10/0x20 [ 75.084283] netlink_unicast+0x40d/0x5f0 [ 75.088333] ? netlink_attachskb+0x6e0/0x6e0 [ 75.092729] netlink_sendmsg+0x730/0xbd0 [ 75.096888] ? netlink_unicast+0x5f0/0x5f0 [ 75.101195] ? selinux_socket_sendmsg+0x31/0x40 [ 75.105847] ? security_socket_sendmsg+0x6a/0xa0 [ 75.110593] ? netlink_unicast+0x5f0/0x5f0 [ 75.114827] sock_sendmsg+0xb5/0xf0 [ 75.118450] ___sys_sendmsg+0x625/0x920 [ 75.122409] ? trace_hardirqs_off+0x10/0x10 [ 75.126733] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 75.131471] ? find_held_lock+0x36/0x1d0 [ 75.135670] ? lock_downgrade+0x7f0/0x7f0 [ 75.139804] ? __fget+0x1ca/0x2f0 [ 75.143288] ? __fget_light+0x166/0x200 [ 75.147284] ? __fdget+0xe/0x10 [ 75.150548] ? sockfd_lookup_light+0x1c/0x150 [ 75.155019] __sys_sendmsg+0xc1/0x140 [ 75.158793] ? SyS_shutdown+0x180/0x180 [ 75.162744] ? __sb_end_write+0xa4/0xd0 [ 75.166694] ? mutex_unlock+0xd/0x10 [ 75.170386] ? do_syscall_64+0x4c/0x5b0 [ 75.174505] ? __sys_sendmsg+0x140/0x140 [ 75.178565] SyS_sendmsg+0xd/0x20 [ 75.182005] do_syscall_64+0x1c7/0x5b0 [ 75.185870] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 75.190692] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 75.195861] RIP: 0033:0x459ef9 2020/03/12 23:44:54 executed programs: 107 [ 75.199025] RSP: 002b:00007f2d8618bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 75.206764] RAX: ffffffffffffffda RBX: 00007f2d8618bc90 RCX: 0000000000459ef9 [ 75.214033] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 75.221324] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 75.228588] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d8618c6d4 [ 75.235847] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 75.247336] team0: Port device team_slave_0 removed [ 75.256373] batman_adv: batadv0: Adding interface: team_slave_0 [ 75.264954] batman_adv: batadv0: The MTU of interface team_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. [ 75.290438] batman_adv: batadv0: Not using interface team_slave_0 (retrying later): interface not active [ 75.300715] FAULT_INJECTION: forcing a failure. [ 75.300715] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 75.312604] CPU: 1 PID: 7249 Comm: syz-executor.1 Not tainted 4.14.173-syzkaller #0 [ 75.320522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.330001] Call Trace: [ 75.332589] dump_stack+0xf7/0x13b [ 75.336125] should_fail.cold.3+0x105/0x14b [ 75.340436] ? do_set_master+0xb6/0x1f0 [ 75.344498] __alloc_pages_nodemask+0x1d5/0x770 [ 75.349149] ? __alloc_pages_slowpath+0x2650/0x2650 [ 75.354168] ? lock_downgrade+0x7f0/0x7f0 [ 75.358576] cache_grow_begin+0x80/0x3f0 [ 75.362627] kmem_cache_alloc_node_trace+0x6aa/0x780 [ 75.367716] __kmalloc_node_track_caller+0x3c/0x70 [ 75.372633] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 75.377562] __alloc_skb+0xc1/0x500 [ 75.381177] ? skb_trim+0x160/0x160 [ 75.384802] ? if_nlmsg_size+0x2d9/0x6f0 [ 75.388991] rtmsg_ifinfo_build_skb+0x68/0x120 [ 75.393587] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 75.398423] rtnetlink_event+0xc2/0x110 [ 75.402518] notifier_call_chain+0xd6/0x150 [ 75.406848] raw_notifier_call_chain+0x11/0x20 [ 75.411428] call_netdevice_notifiers_info+0x4b/0x60 [ 75.416915] netdev_upper_dev_unlink+0xab/0xe0 [ 75.421489] ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30 [ 75.427545] bond_upper_dev_unlink.isra.45+0x33/0xc0 [ 75.432647] __bond_release_one+0x2c2/0x1370 [ 75.437064] ? bond_enslave+0x4a80/0x4a80 [ 75.441200] ? __lock_acquire+0x6a4/0x4500 [ 75.445424] bond_release+0xd/0x10 [ 75.448956] do_set_master+0xb6/0x1f0 [ 75.452754] do_setlink+0x9dd/0x2c50 [ 75.456474] ? __lock_acquire+0x6a4/0x4500 [ 75.460735] ? rtnl_register+0x20/0x20 [ 75.464619] ? __lock_acquire+0x6a4/0x4500 [ 75.468851] ? __lock_acquire+0x6a4/0x4500 [ 75.473075] ? trace_hardirqs_on+0x10/0x10 [ 75.477478] ? trace_hardirqs_off+0x10/0x10 [ 75.481800] ? __lock_acquire+0x6a4/0x4500 [ 75.486027] ? trace_hardirqs_off+0x10/0x10 [ 75.490363] rtnl_newlink+0xe0c/0x1390 [ 75.494248] ? memset+0x31/0x40 [ 75.497512] ? rtnl_newlink+0x6d0/0x1390 [ 75.501579] ? rtnl_link_unregister+0x270/0x270 [ 75.506290] ? finish_task_switch+0x178/0x650 [ 75.510789] ? finish_task_switch+0x14d/0x650 [ 75.515280] ? find_held_lock+0x36/0x1d0 [ 75.519338] ? __mutex_lock+0x8b7/0x14c0 [ 75.523397] ? lock_downgrade+0x7f0/0x7f0 [ 75.527537] ? do_raw_spin_unlock+0x16a/0x250 [ 75.532058] rtnetlink_rcv_msg+0x34f/0x9d0 [ 75.536282] ? rtnl_bridge_getlink+0x760/0x760 [ 75.540847] ? find_held_lock+0x36/0x1d0 [ 75.544893] netlink_rcv_skb+0x133/0x370 [ 75.548931] ? rtnl_bridge_getlink+0x760/0x760 [ 75.553496] ? netlink_ack+0xa00/0xa00 [ 75.557378] ? netlink_deliver_tap+0x8e/0x920 [ 75.561870] rtnetlink_rcv+0x10/0x20 [ 75.565578] netlink_unicast+0x40d/0x5f0 [ 75.569620] ? netlink_attachskb+0x6e0/0x6e0 [ 75.574028] netlink_sendmsg+0x730/0xbd0 [ 75.578077] ? netlink_unicast+0x5f0/0x5f0 [ 75.582328] ? selinux_socket_sendmsg+0x31/0x40 [ 75.586986] ? security_socket_sendmsg+0x6a/0xa0 [ 75.591742] ? netlink_unicast+0x5f0/0x5f0 [ 75.595970] sock_sendmsg+0xb5/0xf0 [ 75.599579] ___sys_sendmsg+0x625/0x920 [ 75.603539] ? trace_hardirqs_off+0x10/0x10 [ 75.607944] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 75.612714] ? find_held_lock+0x36/0x1d0 [ 75.618177] ? lock_downgrade+0x7f0/0x7f0 [ 75.622309] ? __fget+0x1ca/0x2f0 [ 75.625754] ? __fget_light+0x166/0x200 [ 75.629717] ? __fdget+0xe/0x10 [ 75.633233] ? sockfd_lookup_light+0x1c/0x150 [ 75.637718] __sys_sendmsg+0xc1/0x140 [ 75.641502] ? SyS_shutdown+0x180/0x180 [ 75.645458] ? __sb_end_write+0xa4/0xd0 [ 75.649423] ? mutex_unlock+0xd/0x10 [ 75.653128] ? do_syscall_64+0x4c/0x5b0 [ 75.657188] ? __sys_sendmsg+0x140/0x140 [ 75.661235] SyS_sendmsg+0xd/0x20 [ 75.664685] do_syscall_64+0x1c7/0x5b0 [ 75.668558] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 75.673390] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 75.678660] RIP: 0033:0x459ef9 [ 75.681842] RSP: 002b:00007f168d5e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 75.689538] RAX: ffffffffffffffda RBX: 00007f168d5e9c90 RCX: 0000000000459ef9 [ 75.696796] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 75.704052] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 75.711475] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f168d5ea6d4 [ 75.718738] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 75.728297] bond0: Releasing backup interface bond_slave_1 [ 75.762512] batman_adv: batadv0: Adding interface: bond_slave_1 [ 75.768691] batman_adv: batadv0: The MTU of interface bond_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. [ 75.794132] batman_adv: batadv0: Not using interface bond_slave_1 (retrying later): interface not active [ 75.804301] FAULT_INJECTION: forcing a failure. [ 75.804301] name failslab, interval 1, probability 0, space 0, times 0 [ 75.822112] CPU: 1 PID: 7252 Comm: syz-executor.5 Not tainted 4.14.173-syzkaller #0 [ 75.829936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.839289] Call Trace: [ 75.841878] dump_stack+0xf7/0x13b [ 75.845419] should_fail.cold.3+0x105/0x14b [ 75.849736] should_failslab+0xba/0xf0 [ 75.853610] kmem_cache_alloc_trace+0x2ea/0x7a0 [ 75.858258] ? __wake_up+0xe/0x10 [ 75.861713] ? netlink_broadcast_filtered+0x297/0x8f0 [ 75.866894] ? __alloc_skb+0x308/0x500 [ 75.871026] netdevice_event+0x16b/0x6d0 [ 75.875180] ? update_gid_event_work_handler+0xb0/0xb0 [ 75.880461] ? add_netdev_upper_ips+0x20/0x20 [ 75.884957] ? inetaddr_event+0x190/0x190 [ 75.889159] ? _add_netdev_ips+0x30/0x30 [ 75.893198] ? is_eth_port_of_netdev.part.7+0x1e0/0x1e0 [ 75.898546] ? rtmsg_ifinfo_event.part.27+0x7a/0xb0 [ 75.903554] notifier_call_chain+0xd6/0x150 [ 75.908017] raw_notifier_call_chain+0x11/0x20 [ 75.912584] call_netdevice_notifiers_info+0x4b/0x60 [ 75.917707] netdev_upper_dev_unlink+0xab/0xe0 [ 75.922283] ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30 [ 75.928357] bond_upper_dev_unlink.isra.45+0x33/0xc0 [ 75.933459] __bond_release_one+0x2c2/0x1370 [ 75.937979] ? trace_hardirqs_on+0x10/0x10 [ 75.942213] ? bond_enslave+0x4a80/0x4a80 [ 75.946354] ? find_held_lock+0x36/0x1d0 [ 75.950400] ? trace_hardirqs_off+0x10/0x10 [ 75.954721] ? trace_hardirqs_off+0x10/0x10 [ 75.959036] ? trace_hardirqs_off+0x10/0x10 [ 75.963349] ? lock_downgrade+0x7f0/0x7f0 [ 75.967569] ? trace_hardirqs_off+0x10/0x10 [ 75.971880] bond_release+0xd/0x10 [ 75.975402] do_set_master+0xb6/0x1f0 [ 75.979204] do_setlink+0x9dd/0x2c50 [ 75.982919] ? rtnl_register+0x20/0x20 [ 75.986798] ? __lock_acquire+0x6a4/0x4500 [ 75.991021] ? load_balance+0xb38/0x2190 [ 75.995068] ? lock_downgrade+0x7f0/0x7f0 [ 75.999193] ? lock_pin_lock+0x340/0x340 [ 76.003249] ? __lock_acquire+0x6a4/0x4500 [ 76.007474] ? trace_hardirqs_off+0x10/0x10 [ 76.011784] ? __lock_is_held+0xb5/0x140 [ 76.015842] ? trace_hardirqs_off+0x10/0x10 [ 76.020162] rtnl_newlink+0xe0c/0x1390 [ 76.024044] ? memset+0x31/0x40 [ 76.027307] ? rtnl_newlink+0x6d0/0x1390 [ 76.031366] ? rtnl_link_unregister+0x270/0x270 [ 76.036030] ? finish_task_switch+0x178/0x650 [ 76.040511] ? finish_task_switch+0x14d/0x650 [ 76.044998] ? find_held_lock+0x36/0x1d0 [ 76.049066] ? __mutex_lock+0x8b7/0x14c0 [ 76.053137] ? lock_downgrade+0x7f0/0x7f0 [ 76.057277] ? do_raw_spin_unlock+0x16a/0x250 [ 76.061809] rtnetlink_rcv_msg+0x34f/0x9d0 [ 76.066047] ? rtnl_bridge_getlink+0x760/0x760 [ 76.070629] ? find_held_lock+0x36/0x1d0 [ 76.074677] netlink_rcv_skb+0x133/0x370 [ 76.078729] ? rtnl_bridge_getlink+0x760/0x760 [ 76.083324] ? netlink_ack+0xa00/0xa00 [ 76.087221] ? netlink_deliver_tap+0x8e/0x920 [ 76.091719] rtnetlink_rcv+0x10/0x20 [ 76.095415] netlink_unicast+0x40d/0x5f0 [ 76.099634] ? netlink_attachskb+0x6e0/0x6e0 [ 76.104131] netlink_sendmsg+0x730/0xbd0 [ 76.108212] ? netlink_unicast+0x5f0/0x5f0 [ 76.112440] ? selinux_socket_sendmsg+0x31/0x40 [ 76.117095] ? security_socket_sendmsg+0x6a/0xa0 [ 76.121842] ? netlink_unicast+0x5f0/0x5f0 [ 76.126065] sock_sendmsg+0xb5/0xf0 [ 76.129687] ___sys_sendmsg+0x625/0x920 [ 76.133662] ? trace_hardirqs_off+0x10/0x10 [ 76.137969] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 76.145663] ? find_held_lock+0x36/0x1d0 [ 76.149706] ? lock_downgrade+0x7f0/0x7f0 [ 76.153850] ? __fget+0x1ca/0x2f0 [ 76.157301] ? __fget_light+0x166/0x200 [ 76.161258] ? __fdget+0xe/0x10 [ 76.164523] ? sockfd_lookup_light+0x1c/0x150 [ 76.169006] __sys_sendmsg+0xc1/0x140 [ 76.172785] ? SyS_shutdown+0x180/0x180 [ 76.176739] ? __sb_end_write+0xa4/0xd0 [ 76.181220] ? mutex_unlock+0xd/0x10 [ 76.184930] ? do_syscall_64+0x4c/0x5b0 [ 76.188906] ? __sys_sendmsg+0x140/0x140 [ 76.192953] SyS_sendmsg+0xd/0x20 [ 76.196406] do_syscall_64+0x1c7/0x5b0 [ 76.200293] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 76.205125] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 76.210294] RIP: 0033:0x459ef9 [ 76.213462] RSP: 002b:00007f5fa9badc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 76.221148] RAX: ffffffffffffffda RBX: 00007f5fa9badc90 RCX: 0000000000459ef9 [ 76.228395] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 76.235642] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 76.242889] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fa9bae6d4 [ 76.250146] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 76.259586] bond0: Releasing backup interface bond_slave_1 [ 76.292599] batman_adv: batadv0: Adding interface: bond_slave_1 [ 76.298886] batman_adv: batadv0: The MTU of interface bond_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. [ 76.324645] batman_adv: batadv0: Not using interface bond_slave_1 (retrying later): interface not active [ 76.336047] FAULT_INJECTION: forcing a failure. [ 76.336047] name failslab, interval 1, probability 0, space 0, times 0 [ 76.347431] CPU: 1 PID: 7257 Comm: syz-executor.2 Not tainted 4.14.173-syzkaller #0 [ 76.355227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.364586] Call Trace: [ 76.367179] dump_stack+0xf7/0x13b [ 76.370725] should_fail.cold.3+0x105/0x14b [ 76.375232] should_failslab+0xba/0xf0 [ 76.379193] kmem_cache_alloc_node+0x56/0x790 [ 76.383800] __alloc_skb+0x92/0x500 [ 76.387469] ? skb_trim+0x160/0x160 [ 76.391262] ? call_fib6_notifiers+0x3c/0x60 [ 76.395673] inet6_rt_notify+0xe0/0x290 [ 76.399643] fib6_del+0x89d/0xd80 [ 76.403082] fib6_clean_node+0x1d8/0x3f0 [ 76.407134] ? fib6_del+0xd80/0xd80 [ 76.410752] ? trace_hardirqs_on_caller+0x19e/0x580 [ 76.415751] ? fib6_walker_link+0xe2/0x120 [ 76.420085] fib6_walk_continue+0x1bb/0x920 [ 76.424396] ? _raw_write_unlock_bh+0x30/0x40 [ 76.429015] fib6_walk+0x90/0xe0 [ 76.432364] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 76.437109] fib6_clean_tree+0x8f/0xb0 [ 76.441011] ? fib6_walk+0xe0/0xe0 [ 76.444540] ? fib6_del+0xd80/0xd80 [ 76.448147] ? fib6_remove_prefsrc+0x250/0x250 [ 76.452734] ? _raw_write_lock_bh+0x39/0x40 [ 76.457039] ? __fib6_clean_all+0xc5/0x1d0 [ 76.461323] __fib6_clean_all+0xde/0x1d0 [ 76.465367] ? fib6_remove_prefsrc+0x250/0x250 [ 76.470044] fib6_clean_all+0xe/0x10 [ 76.473744] rt6_ifdown+0x80/0x560 [ 76.477278] ? __lock_acquire+0x6a4/0x4500 [ 76.481502] ? rt6_clean_tohost+0x20/0x20 [ 76.485725] addrconf_ifdown+0xbb/0x1330 [ 76.489787] ? trace_hardirqs_off+0x10/0x10 [ 76.494097] ? add_addr+0x150/0x150 [ 76.497724] addrconf_notify+0x555/0x1b10 [ 76.501878] ? lock_downgrade+0x7f0/0x7f0 [ 76.506026] ? inet6_ifinfo_notify+0x100/0x100 [ 76.510606] ? nfqnl_rcv_dev_event+0x227/0x3b0 [ 76.515186] notifier_call_chain+0xd6/0x150 [ 76.519584] raw_notifier_call_chain+0x11/0x20 [ 76.524179] call_netdevice_notifiers_info+0x4b/0x60 [ 76.529290] dev_close_many+0x29b/0x610 [ 76.533252] ? list_netdevice+0x4b0/0x4b0 [ 76.537390] ? mark_held_locks+0xc7/0x130 [ 76.541526] ? dev_mc_unsync+0x165/0x1a5 [ 76.545568] dev_close.part.89+0xe5/0x190 [ 76.549696] ? dev_close_many+0x610/0x610 [ 76.553842] ? dev_mc_unsync+0x165/0x1a5 [ 76.557903] ? __local_bh_enable_ip+0x9c/0x180 [ 76.562489] ? _raw_spin_unlock_bh+0x30/0x40 [ 76.566883] dev_close+0x40/0x50 [ 76.570240] team_port_del+0x2c0/0x770 [ 76.574169] team_del_slave+0x34/0x70 [ 76.578023] do_set_master+0xb6/0x1f0 [ 76.581813] do_setlink+0x9dd/0x2c50 [ 76.585511] ? find_held_lock+0x36/0x1d0 [ 76.589561] ? rtnl_register+0x20/0x20 [ 76.593432] ? load_balance+0xb38/0x2190 [ 76.597481] ? lock_downgrade+0x7f0/0x7f0 [ 76.601638] ? lock_pin_lock+0x340/0x340 [ 76.605689] ? __lock_acquire+0x6a4/0x4500 [ 76.609914] ? trace_hardirqs_off+0x10/0x10 [ 76.614214] ? __lock_is_held+0xb5/0x140 [ 76.618254] ? trace_hardirqs_off+0x10/0x10 [ 76.622584] rtnl_newlink+0xe0c/0x1390 [ 76.626451] ? rtnl_newlink+0x6d0/0x1390 [ 76.630516] ? rtnl_link_unregister+0x270/0x270 [ 76.635176] ? finish_task_switch+0x178/0x650 [ 76.639651] ? finish_task_switch+0x14d/0x650 [ 76.644144] ? find_held_lock+0x36/0x1d0 [ 76.648192] ? __mutex_lock+0x8b7/0x14c0 [ 76.652268] ? lock_downgrade+0x7f0/0x7f0 [ 76.656516] ? do_raw_spin_unlock+0x16a/0x250 [ 76.661730] rtnetlink_rcv_msg+0x34f/0x9d0 [ 76.666045] ? rtnl_bridge_getlink+0x760/0x760 [ 76.670805] ? find_held_lock+0x36/0x1d0 [ 76.674882] netlink_rcv_skb+0x133/0x370 [ 76.678929] ? rtnl_bridge_getlink+0x760/0x760 [ 76.683517] ? netlink_ack+0xa00/0xa00 [ 76.687418] ? netlink_deliver_tap+0x8e/0x920 [ 76.691927] rtnetlink_rcv+0x10/0x20 [ 76.695635] netlink_unicast+0x40d/0x5f0 [ 76.699762] ? netlink_attachskb+0x6e0/0x6e0 [ 76.704175] netlink_sendmsg+0x730/0xbd0 [ 76.708239] ? netlink_unicast+0x5f0/0x5f0 [ 76.712483] ? selinux_socket_sendmsg+0x31/0x40 [ 76.717917] ? security_socket_sendmsg+0x6a/0xa0 [ 76.722679] ? netlink_unicast+0x5f0/0x5f0 [ 76.726912] sock_sendmsg+0xb5/0xf0 [ 76.730543] ___sys_sendmsg+0x625/0x920 [ 76.734749] ? trace_hardirqs_off+0x10/0x10 [ 76.739250] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 76.744154] ? find_held_lock+0x36/0x1d0 [ 76.748224] ? lock_downgrade+0x7f0/0x7f0 [ 76.752388] ? __fget+0x1ca/0x2f0 [ 76.755942] ? __fget_light+0x166/0x200 [ 76.760171] ? __fdget+0xe/0x10 [ 76.763441] ? sockfd_lookup_light+0x1c/0x150 [ 76.768098] __sys_sendmsg+0xc1/0x140 [ 76.771988] ? SyS_shutdown+0x180/0x180 [ 76.776243] ? __sb_end_write+0xa4/0xd0 [ 76.780294] ? mutex_unlock+0xd/0x10 [ 76.784456] ? do_syscall_64+0x4c/0x5b0 [ 76.788591] ? __sys_sendmsg+0x140/0x140 [ 76.792809] SyS_sendmsg+0xd/0x20 [ 76.796251] do_syscall_64+0x1c7/0x5b0 [ 76.800144] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 76.804997] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 76.811063] RIP: 0033:0x459ef9 [ 76.814609] RSP: 002b:00007fa8a10f3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 76.822751] RAX: ffffffffffffffda RBX: 00007fa8a10f3c90 RCX: 0000000000459ef9 [ 76.830791] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 76.838062] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 76.845792] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8a10f46d4 [ 76.853518] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 76.864218] team0: Port device team_slave_0 removed [ 76.869999] batman_adv: batadv0: Adding interface: team_slave_0 [ 76.876418] batman_adv: batadv0: The MTU of interface team_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. [ 76.903234] batman_adv: batadv0: Not using interface team_slave_0 (retrying later): interface not active [ 76.916457] FAULT_INJECTION: forcing a failure. [ 76.916457] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 76.929469] CPU: 1 PID: 7261 Comm: syz-executor.4 Not tainted 4.14.173-syzkaller #0 [ 76.937625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.947156] Call Trace: [ 76.949759] dump_stack+0xf7/0x13b [ 76.953313] should_fail.cold.3+0x105/0x14b [ 76.957669] ? rtnl_newlink+0xe0c/0x1390 [ 76.961738] __alloc_pages_nodemask+0x1d5/0x770 [ 76.966450] ? __alloc_pages_slowpath+0x2650/0x2650 [ 76.971875] ? lock_downgrade+0x7f0/0x7f0 [ 76.976146] cache_grow_begin+0x80/0x3f0 [ 76.980223] kmem_cache_alloc_node_trace+0x6aa/0x780 [ 76.985344] __kmalloc_node_track_caller+0x3c/0x70 [ 76.990646] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 76.995580] __alloc_skb+0xc1/0x500 [ 76.999311] ? skb_trim+0x160/0x160 [ 77.002935] ? if_nlmsg_size+0x2d9/0x6f0 [ 77.006998] rtmsg_ifinfo_build_skb+0x68/0x120 [ 77.011727] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 77.016552] rtmsg_ifinfo+0x4a/0x70 [ 77.020832] dev_close_many+0x287/0x610 [ 77.024866] ? list_netdevice+0x4b0/0x4b0 [ 77.029006] ? mark_held_locks+0xc7/0x130 [ 77.033146] ? dev_mc_unsync+0x165/0x1a5 [ 77.037198] dev_close.part.89+0xe5/0x190 [ 77.041334] ? dev_close_many+0x610/0x610 [ 77.045474] ? dev_mc_unsync+0x165/0x1a5 [ 77.049531] ? __local_bh_enable_ip+0x9c/0x180 [ 77.054105] ? _raw_spin_unlock_bh+0x30/0x40 [ 77.058518] dev_close+0x40/0x50 [ 77.061902] team_port_del+0x2c0/0x770 [ 77.065788] team_del_slave+0x34/0x70 [ 77.069588] do_set_master+0xb6/0x1f0 [ 77.073390] do_setlink+0x9dd/0x2c50 [ 77.077096] ? __lock_acquire+0x6a4/0x4500 [ 77.081337] ? rtnl_register+0x20/0x20 [ 77.085220] ? trace_hardirqs_on+0x10/0x10 [ 77.089442] ? trace_hardirqs_off+0x10/0x10 [ 77.093867] ? __lock_acquire+0x6a4/0x4500 [ 77.098087] ? trace_hardirqs_off+0x10/0x10 [ 77.102392] ? __lock_is_held+0xb5/0x140 [ 77.106456] ? trace_hardirqs_off+0x10/0x10 [ 77.110769] rtnl_newlink+0xe0c/0x1390 [ 77.114652] ? rtnl_newlink+0x6d0/0x1390 [ 77.118712] ? rtnl_link_unregister+0x270/0x270 [ 77.123372] ? finish_task_switch+0x178/0x650 [ 77.127892] ? finish_task_switch+0x14d/0x650 [ 77.132386] ? find_held_lock+0x36/0x1d0 [ 77.136454] ? __mutex_lock+0x8b7/0x14c0 [ 77.140505] ? lock_downgrade+0x7f0/0x7f0 [ 77.144701] ? do_raw_spin_unlock+0x16a/0x250 [ 77.149222] rtnetlink_rcv_msg+0x34f/0x9d0 [ 77.153451] ? rtnl_bridge_getlink+0x760/0x760 [ 77.158019] ? find_held_lock+0x36/0x1d0 [ 77.162081] netlink_rcv_skb+0x133/0x370 [ 77.166209] ? rtnl_bridge_getlink+0x760/0x760 [ 77.170774] ? netlink_ack+0xa00/0xa00 [ 77.174641] ? netlink_deliver_tap+0x8e/0x920 [ 77.179132] rtnetlink_rcv+0x10/0x20 [ 77.182854] netlink_unicast+0x40d/0x5f0 [ 77.186912] ? netlink_attachskb+0x6e0/0x6e0 [ 77.191325] netlink_sendmsg+0x730/0xbd0 [ 77.195378] ? netlink_unicast+0x5f0/0x5f0 [ 77.199597] ? selinux_socket_sendmsg+0x31/0x40 [ 77.204254] ? security_socket_sendmsg+0x6a/0xa0 [ 77.209119] ? netlink_unicast+0x5f0/0x5f0 [ 77.213338] sock_sendmsg+0xb5/0xf0 [ 77.216957] ___sys_sendmsg+0x625/0x920 [ 77.220928] ? trace_hardirqs_off+0x10/0x10 [ 77.225241] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 77.229985] ? find_held_lock+0x36/0x1d0 [ 77.234033] ? lock_downgrade+0x7f0/0x7f0 [ 77.238180] ? __fget+0x1ca/0x2f0 [ 77.241630] ? __fget_light+0x166/0x200 [ 77.245604] ? __fdget+0xe/0x10 [ 77.249291] ? sockfd_lookup_light+0x1c/0x150 [ 77.253769] __sys_sendmsg+0xc1/0x140 [ 77.257570] ? SyS_shutdown+0x180/0x180 [ 77.261544] ? __sb_end_write+0xa4/0xd0 [ 77.265550] ? mutex_unlock+0xd/0x10 [ 77.269277] ? do_syscall_64+0x4c/0x5b0 [ 77.273248] ? __sys_sendmsg+0x140/0x140 [ 77.277324] SyS_sendmsg+0xd/0x20 [ 77.280767] do_syscall_64+0x1c7/0x5b0 [ 77.284651] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 77.289483] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 77.294653] RIP: 0033:0x459ef9 [ 77.297836] RSP: 002b:00007fd91524ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 77.305572] RAX: ffffffffffffffda RBX: 00007fd91524ec90 RCX: 0000000000459ef9 [ 77.312826] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 77.320100] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 77.327801] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91524f6d4 [ 77.335081] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 77.348201] team0: Port device team_slave_1 removed [ 77.354068] batman_adv: batadv0: Adding interface: team_slave_1 [ 77.362099] batman_adv: batadv0: The MTU of interface team_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. [ 77.388603] batman_adv: batadv0: Not using interface team_slave_1 (retrying later): interface not active [ 77.398910] FAULT_INJECTION: forcing a failure. [ 77.398910] name failslab, interval 1, probability 0, space 0, times 0 [ 77.414379] CPU: 1 PID: 7264 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0 [ 77.422201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.431756] Call Trace: [ 77.434357] dump_stack+0xf7/0x13b [ 77.437915] should_fail.cold.3+0x105/0x14b [ 77.442364] should_failslab+0xba/0xf0 [ 77.446245] kmem_cache_alloc_node_trace+0x279/0x780 [ 77.451344] __kmalloc_node_track_caller+0x3c/0x70 [ 77.456268] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 77.461028] __alloc_skb+0xc1/0x500 [ 77.464730] ? skb_trim+0x160/0x160 [ 77.468455] ? if_nlmsg_size+0x2d9/0x6f0 [ 77.472623] rtmsg_ifinfo_build_skb+0x68/0x120 [ 77.477368] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 77.482240] rtmsg_ifinfo+0x4a/0x70 [ 77.485873] dev_close_many+0x287/0x610 [ 77.489855] ? list_netdevice+0x4b0/0x4b0 [ 77.494009] ? mark_held_locks+0xc7/0x130 [ 77.498155] ? dev_mc_unsync+0x165/0x1a5 [ 77.502216] dev_close.part.89+0xe5/0x190 [ 77.506360] ? dev_close_many+0x610/0x610 [ 77.510572] ? dev_mc_unsync+0x165/0x1a5 [ 77.514626] ? __local_bh_enable_ip+0x9c/0x180 [ 77.519318] ? _raw_spin_unlock_bh+0x30/0x40 [ 77.523733] dev_close+0x40/0x50 [ 77.527111] team_port_del+0x2c0/0x770 [ 77.530993] team_del_slave+0x34/0x70 [ 77.534811] do_set_master+0xb6/0x1f0 [ 77.538674] do_setlink+0x9dd/0x2c50 [ 77.542383] ? find_held_lock+0x36/0x1d0 [ 77.546493] ? rtnl_register+0x20/0x20 [ 77.550371] ? load_balance+0xb38/0x2190 [ 77.554424] ? lock_downgrade+0x7f0/0x7f0 [ 77.559160] ? lock_pin_lock+0x340/0x340 [ 77.563216] ? __lock_acquire+0x6a4/0x4500 [ 77.567449] ? trace_hardirqs_off+0x10/0x10 [ 77.571768] ? __lock_is_held+0xb5/0x140 [ 77.575834] ? trace_hardirqs_off+0x10/0x10 [ 77.580153] rtnl_newlink+0xe0c/0x1390 [ 77.584083] ? rtnl_newlink+0x6d0/0x1390 [ 77.588250] ? rtnl_link_unregister+0x270/0x270 [ 77.592906] ? finish_task_switch+0x178/0x650 [ 77.597395] ? finish_task_switch+0x14d/0x650 [ 77.601910] ? find_held_lock+0x36/0x1d0 [ 77.605958] ? __mutex_lock+0x8b7/0x14c0 [ 77.610011] ? lock_downgrade+0x7f0/0x7f0 [ 77.614197] ? do_raw_spin_unlock+0x16a/0x250 [ 77.618694] rtnetlink_rcv_msg+0x34f/0x9d0 [ 77.622920] ? rtnl_bridge_getlink+0x760/0x760 [ 77.627488] ? find_held_lock+0x36/0x1d0 [ 77.631538] netlink_rcv_skb+0x133/0x370 [ 77.635602] ? rtnl_bridge_getlink+0x760/0x760 [ 77.640433] ? netlink_ack+0xa00/0xa00 [ 77.644319] ? netlink_deliver_tap+0x8e/0x920 [ 77.648802] rtnetlink_rcv+0x10/0x20 [ 77.652550] netlink_unicast+0x40d/0x5f0 [ 77.656701] ? netlink_attachskb+0x6e0/0x6e0 [ 77.661199] netlink_sendmsg+0x730/0xbd0 [ 77.665243] ? netlink_unicast+0x5f0/0x5f0 [ 77.669463] ? selinux_socket_sendmsg+0x31/0x40 [ 77.674117] ? security_socket_sendmsg+0x6a/0xa0 [ 77.679128] ? netlink_unicast+0x5f0/0x5f0 [ 77.683358] sock_sendmsg+0xb5/0xf0 [ 77.686987] ___sys_sendmsg+0x625/0x920 [ 77.690983] ? trace_hardirqs_off+0x10/0x10 [ 77.695331] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 77.700081] ? find_held_lock+0x36/0x1d0 [ 77.704132] ? lock_downgrade+0x7f0/0x7f0 [ 77.708275] ? __fget+0x1ca/0x2f0 [ 77.711723] ? __fget_light+0x166/0x200 [ 77.715720] ? __fdget+0xe/0x10 [ 77.718985] ? sockfd_lookup_light+0x1c/0x150 [ 77.723463] __sys_sendmsg+0xc1/0x140 [ 77.727254] ? SyS_shutdown+0x180/0x180 [ 77.731276] ? __sb_end_write+0xa4/0xd0 [ 77.735251] ? mutex_unlock+0xd/0x10 [ 77.738988] ? do_syscall_64+0x4c/0x5b0 [ 77.742952] ? __sys_sendmsg+0x140/0x140 [ 77.747053] SyS_sendmsg+0xd/0x20 [ 77.750712] do_syscall_64+0x1c7/0x5b0 [ 77.754593] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 77.759431] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 77.764660] RIP: 0033:0x459ef9 [ 77.767835] RSP: 002b:00007f2d8618bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 77.775535] RAX: ffffffffffffffda RBX: 00007f2d8618bc90 RCX: 0000000000459ef9 [ 77.782834] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 77.790239] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 77.797499] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d8618c6d4 [ 77.804755] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 77.815666] team0: Port device team_slave_1 removed [ 77.821391] batman_adv: batadv0: Adding interface: team_slave_1 [ 77.827550] batman_adv: batadv0: The MTU of interface team_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. [ 77.852939] batman_adv: batadv0: Not using interface team_slave_1 (retrying later): interface not active [ 77.863462] FAULT_INJECTION: forcing a failure. [ 77.863462] name failslab, interval 1, probability 0, space 0, times 0 [ 77.887559] CPU: 0 PID: 7267 Comm: syz-executor.1 Not tainted 4.14.173-syzkaller #0 [ 77.895499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.904857] Call Trace: [ 77.907451] dump_stack+0xf7/0x13b [ 77.911009] should_fail.cold.3+0x105/0x14b [ 77.915327] should_failslab+0xba/0xf0 [ 77.920345] kmem_cache_alloc_node_trace+0x5a/0x780 [ 77.925369] __kmalloc_node_track_caller+0x3c/0x70 [ 77.930574] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 77.935323] pskb_expand_head+0x106/0xc20 [ 77.939605] ? kasan_kmalloc+0xc7/0xe0 [ 77.943519] netlink_trim+0x18f/0x200 [ 77.947371] netlink_broadcast_filtered+0x57/0x8f0 [ 77.952294] ? __alloc_skb+0x308/0x500 [ 77.956296] nlmsg_notify+0x6b/0x120 [ 77.960077] rtmsg_ifinfo_event.part.27+0x7a/0xb0 [ 77.964904] rtmsg_ifinfo+0x4a/0x70 [ 77.968532] dev_close_many+0x287/0x610 [ 77.972504] ? list_netdevice+0x4b0/0x4b0 [ 77.976648] ? mark_held_locks+0xc7/0x130 [ 77.980784] ? dev_mc_unsync+0x165/0x1a5 [ 77.984842] dev_close.part.89+0xe5/0x190 [ 77.988982] ? dev_close_many+0x610/0x610 [ 77.993112] ? dev_mc_unsync+0x165/0x1a5 [ 77.997169] ? __local_bh_enable_ip+0x9c/0x180 [ 78.001862] ? _raw_spin_unlock_bh+0x30/0x40 [ 78.006253] dev_close+0x40/0x50 [ 78.009617] team_port_del+0x2c0/0x770 [ 78.013716] team_del_slave+0x34/0x70 [ 78.017539] do_set_master+0xb6/0x1f0 [ 78.021373] do_setlink+0x9dd/0x2c50 [ 78.025081] ? rtnl_register+0x20/0x20 [ 78.029014] ? __lock_acquire+0x6a4/0x4500 [ 78.033296] ? trace_hardirqs_off+0x10/0x10 [ 78.037607] rtnl_newlink+0xe0c/0x1390 [ 78.041536] ? rtnl_newlink+0x6d0/0x1390 [ 78.045612] ? rtnl_link_unregister+0x270/0x270 [ 78.050266] ? finish_task_switch+0x178/0x650 [ 78.054746] ? finish_task_switch+0x14d/0x650 [ 78.059227] ? find_held_lock+0x36/0x1d0 [ 78.063376] ? __mutex_lock+0x8b7/0x14c0 [ 78.067436] ? lock_downgrade+0x7f0/0x7f0 [ 78.071632] ? do_raw_spin_unlock+0x16a/0x250 [ 78.076131] rtnetlink_rcv_msg+0x34f/0x9d0 [ 78.080370] ? rtnl_bridge_getlink+0x760/0x760 [ 78.084963] ? find_held_lock+0x36/0x1d0 [ 78.089720] netlink_rcv_skb+0x133/0x370 [ 78.093783] ? rtnl_bridge_getlink+0x760/0x760 [ 78.098367] ? netlink_ack+0xa00/0xa00 [ 78.102244] ? netlink_deliver_tap+0x8e/0x920 [ 78.106724] rtnetlink_rcv+0x10/0x20 [ 78.110457] netlink_unicast+0x40d/0x5f0 [ 78.114521] ? netlink_attachskb+0x6e0/0x6e0 [ 78.119023] netlink_sendmsg+0x730/0xbd0 [ 78.123078] ? netlink_unicast+0x5f0/0x5f0 [ 78.127310] ? selinux_socket_sendmsg+0x31/0x40 [ 78.131981] ? security_socket_sendmsg+0x6a/0xa0 [ 78.136725] ? netlink_unicast+0x5f0/0x5f0 [ 78.140942] sock_sendmsg+0xb5/0xf0 [ 78.144551] ___sys_sendmsg+0x625/0x920 [ 78.148513] ? trace_hardirqs_off+0x10/0x10 [ 78.152812] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 78.158505] ? find_held_lock+0x36/0x1d0 [ 78.162549] ? lock_downgrade+0x7f0/0x7f0 [ 78.166686] ? __fget+0x1ca/0x2f0 [ 78.170122] ? __fget_light+0x166/0x200 [ 78.174169] ? __fdget+0xe/0x10 [ 78.177437] ? sockfd_lookup_light+0x1c/0x150 [ 78.181920] __sys_sendmsg+0xc1/0x140 [ 78.185717] ? SyS_shutdown+0x180/0x180 [ 78.189680] ? __sb_end_write+0xa4/0xd0 [ 78.193653] ? mutex_unlock+0xd/0x10 [ 78.197361] ? do_syscall_64+0x4c/0x5b0 [ 78.201333] ? __sys_sendmsg+0x140/0x140 [ 78.205370] SyS_sendmsg+0xd/0x20 [ 78.208809] do_syscall_64+0x1c7/0x5b0 [ 78.212688] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 78.217511] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 78.222686] RIP: 0033:0x459ef9 [ 78.225854] RSP: 002b:00007f168d5e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 78.233542] RAX: ffffffffffffffda RBX: 00007f168d5e9c90 RCX: 0000000000459ef9 [ 78.240798] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 78.252395] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 78.259776] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f168d5ea6d4 [ 78.267046] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 78.286028] team0: Port device team_slave_0 removed [ 78.292159] batman_adv: batadv0: Adding interface: team_slave_0 [ 78.298219] batman_adv: batadv0: The MTU of interface team_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. [ 78.323268] batman_adv: batadv0: Not using interface team_slave_0 (retrying later): interface not active [ 78.333644] FAULT_INJECTION: forcing a failure. [ 78.333644] name failslab, interval 1, probability 0, space 0, times 0 [ 78.346034] CPU: 0 PID: 7270 Comm: syz-executor.5 Not tainted 4.14.173-syzkaller #0 [ 78.354273] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.364785] Call Trace: [ 78.367360] dump_stack+0xf7/0x13b [ 78.370901] should_fail.cold.3+0x105/0x14b [ 78.375209] should_failslab+0xba/0xf0 [ 78.379110] kmem_cache_alloc_node+0x287/0x790 [ 78.383687] __alloc_skb+0x92/0x500 [ 78.387292] ? skb_trim+0x160/0x160 [ 78.390985] ? if_nlmsg_size+0x2d9/0x6f0 [ 78.395139] rtmsg_ifinfo_build_skb+0x68/0x120 [ 78.399703] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 78.404538] rtmsg_ifinfo+0x4a/0x70 [ 78.408180] dev_close_many+0x287/0x610 [ 78.412150] ? list_netdevice+0x4b0/0x4b0 [ 78.416591] ? mark_held_locks+0xc7/0x130 [ 78.420910] ? dev_mc_unsync+0x165/0x1a5 [ 78.425354] dev_close.part.89+0xe5/0x190 [ 78.429621] ? dev_close_many+0x610/0x610 [ 78.433936] ? dev_mc_unsync+0x165/0x1a5 [ 78.438067] ? __local_bh_enable_ip+0x9c/0x180 [ 78.442991] ? _raw_spin_unlock_bh+0x30/0x40 [ 78.447412] dev_close+0x40/0x50 [ 78.450772] team_port_del+0x2c0/0x770 [ 78.454645] team_del_slave+0x34/0x70 [ 78.458440] do_set_master+0xb6/0x1f0 [ 78.462231] do_setlink+0x9dd/0x2c50 [ 78.466025] ? find_held_lock+0x36/0x1d0 [ 78.470177] ? rtnl_register+0x20/0x20 [ 78.474238] ? load_balance+0xb38/0x2190 [ 78.478487] ? lock_downgrade+0x7f0/0x7f0 [ 78.482674] ? lock_pin_lock+0x340/0x340 [ 78.486743] ? __lock_acquire+0x6a4/0x4500 [ 78.490987] ? trace_hardirqs_off+0x10/0x10 [ 78.495402] ? __lock_is_held+0xb5/0x140 [ 78.499483] ? trace_hardirqs_off+0x10/0x10 [ 78.503896] rtnl_newlink+0xe0c/0x1390 [ 78.507814] ? rtnl_newlink+0x6d0/0x1390 [ 78.511968] ? rtnl_link_unregister+0x270/0x270 [ 78.516624] ? finish_task_switch+0x178/0x650 [ 78.521235] ? finish_task_switch+0x14d/0x650 [ 78.525731] ? find_held_lock+0x36/0x1d0 [ 78.529811] ? __mutex_lock+0x8b7/0x14c0 [ 78.534008] ? lock_downgrade+0x7f0/0x7f0 [ 78.538251] ? do_raw_spin_unlock+0x16a/0x250 [ 78.542786] rtnetlink_rcv_msg+0x34f/0x9d0 [ 78.547016] ? rtnl_bridge_getlink+0x760/0x760 [ 78.551758] ? find_held_lock+0x36/0x1d0 [ 78.555934] netlink_rcv_skb+0x133/0x370 [ 78.559985] ? rtnl_bridge_getlink+0x760/0x760 [ 78.565031] ? netlink_ack+0xa00/0xa00 [ 78.568920] ? netlink_deliver_tap+0x8e/0x920 [ 78.573469] rtnetlink_rcv+0x10/0x20 [ 78.577338] netlink_unicast+0x40d/0x5f0 [ 78.581516] ? netlink_attachskb+0x6e0/0x6e0 [ 78.586257] netlink_sendmsg+0x730/0xbd0 [ 78.591080] ? netlink_unicast+0x5f0/0x5f0 [ 78.595310] ? selinux_socket_sendmsg+0x31/0x40 [ 78.600113] ? security_socket_sendmsg+0x6a/0xa0 [ 78.605576] ? netlink_unicast+0x5f0/0x5f0 [ 78.609857] sock_sendmsg+0xb5/0xf0 [ 78.613480] ___sys_sendmsg+0x625/0x920 [ 78.617439] ? trace_hardirqs_off+0x10/0x10 [ 78.621759] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 78.627301] ? find_held_lock+0x36/0x1d0 [ 78.631989] ? lock_downgrade+0x7f0/0x7f0 [ 78.636250] ? __fget+0x1ca/0x2f0 [ 78.639810] ? __fget_light+0x166/0x200 [ 78.643866] ? __fdget+0xe/0x10 [ 78.647677] ? sockfd_lookup_light+0x1c/0x150 [ 78.653717] __sys_sendmsg+0xc1/0x140 [ 78.657609] ? SyS_shutdown+0x180/0x180 [ 78.661574] ? __sb_end_write+0xa4/0xd0 [ 78.665805] ? mutex_unlock+0xd/0x10 [ 78.669540] ? do_syscall_64+0x4c/0x5b0 [ 78.673502] ? __sys_sendmsg+0x140/0x140 [ 78.677756] SyS_sendmsg+0xd/0x20 [ 78.681221] do_syscall_64+0x1c7/0x5b0 [ 78.685237] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 78.690074] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 78.695246] RIP: 0033:0x459ef9 [ 78.698419] RSP: 002b:00007f5fa9badc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 78.706130] RAX: ffffffffffffffda RBX: 00007f5fa9badc90 RCX: 0000000000459ef9 [ 78.713707] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 78.720975] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 78.728460] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fa9bae6d4 [ 78.735728] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 78.747846] team0: Port device team_slave_0 removed [ 78.760921] batman_adv: batadv0: Adding interface: team_slave_0 [ 78.767275] batman_adv: batadv0: The MTU of interface team_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. [ 78.792604] batman_adv: batadv0: Not using interface team_slave_0 (retrying later): interface not active [ 78.803319] FAULT_INJECTION: forcing a failure. [ 78.803319] name failslab, interval 1, probability 0, space 0, times 0 [ 78.824839] CPU: 0 PID: 7276 Comm: syz-executor.2 Not tainted 4.14.173-syzkaller #0 [ 78.832668] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.842291] Call Trace: [ 78.845322] dump_stack+0xf7/0x13b [ 78.848981] should_fail.cold.3+0x105/0x14b [ 78.853288] should_failslab+0xba/0xf0 [ 78.857339] kmem_cache_alloc_node_trace+0x5a/0x780 [ 78.862343] __kmalloc_node_track_caller+0x3c/0x70 [ 78.867264] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 78.872107] pskb_expand_head+0x106/0xc20 [ 78.876254] ? kasan_kmalloc+0xc7/0xe0 [ 78.880232] netlink_trim+0x18f/0x200 [ 78.884025] netlink_broadcast_filtered+0x57/0x8f0 [ 78.888968] ? __alloc_skb+0x308/0x500 [ 78.893082] nlmsg_notify+0x6b/0x120 [ 78.896877] rtmsg_ifinfo_event.part.27+0x7a/0xb0 [ 78.903115] rtmsg_ifinfo+0x4a/0x70 [ 78.906818] dev_close_many+0x287/0x610 [ 78.910790] ? list_netdevice+0x4b0/0x4b0 [ 78.915110] ? mark_held_locks+0xc7/0x130 [ 78.919516] ? dev_mc_unsync+0x165/0x1a5 [ 78.923560] dev_close.part.89+0xe5/0x190 [ 78.927699] ? dev_close_many+0x610/0x610 [ 78.931840] ? dev_mc_unsync+0x165/0x1a5 [ 78.936288] ? __local_bh_enable_ip+0x9c/0x180 [ 78.941758] ? _raw_spin_unlock_bh+0x30/0x40 [ 78.946309] dev_close+0x40/0x50 [ 78.949821] team_port_del+0x2c0/0x770 [ 78.953802] team_del_slave+0x34/0x70 [ 78.957709] do_set_master+0xb6/0x1f0 [ 78.961496] do_setlink+0x9dd/0x2c50 [ 78.965196] ? find_held_lock+0x36/0x1d0 [ 78.969332] ? rtnl_register+0x20/0x20 [ 78.973205] ? load_balance+0x9c5/0x2190 [ 78.977443] ? lock_downgrade+0x7f0/0x7f0 [ 78.981588] ? lock_pin_lock+0x340/0x340 [ 78.986599] ? __lock_acquire+0x6a4/0x4500 [ 78.990824] ? trace_hardirqs_off+0x10/0x10 [ 78.995126] ? trace_hardirqs_off+0x10/0x10 [ 78.999531] rtnl_newlink+0xe0c/0x1390 [ 79.003419] ? rtnl_newlink+0x6d0/0x1390 [ 79.007650] ? rtnl_link_unregister+0x270/0x270 [ 79.012349] ? finish_task_switch+0x178/0x650 [ 79.016869] ? finish_task_switch+0x14d/0x650 [ 79.021452] ? find_held_lock+0x36/0x1d0 [ 79.025500] ? __mutex_lock+0x8b7/0x14c0 [ 79.029546] ? lock_downgrade+0x7f0/0x7f0 [ 79.033680] ? do_raw_spin_unlock+0x16a/0x250 [ 79.038189] rtnetlink_rcv_msg+0x34f/0x9d0 [ 79.042448] ? rtnl_bridge_getlink+0x760/0x760 [ 79.047070] ? find_held_lock+0x36/0x1d0 [ 79.051154] netlink_rcv_skb+0x133/0x370 [ 79.055213] ? rtnl_bridge_getlink+0x760/0x760 [ 79.060414] ? netlink_ack+0xa00/0xa00 [ 79.064574] ? netlink_deliver_tap+0x8e/0x920 [ 79.069066] rtnetlink_rcv+0x10/0x20 [ 79.072798] netlink_unicast+0x40d/0x5f0 [ 79.077374] ? netlink_attachskb+0x6e0/0x6e0 [ 79.081777] netlink_sendmsg+0x730/0xbd0 [ 79.086293] ? netlink_unicast+0x5f0/0x5f0 [ 79.090521] ? selinux_socket_sendmsg+0x31/0x40 [ 79.095181] ? security_socket_sendmsg+0x6a/0xa0 [ 79.104273] ? netlink_unicast+0x5f0/0x5f0 [ 79.108505] sock_sendmsg+0xb5/0xf0 [ 79.112122] ___sys_sendmsg+0x625/0x920 [ 79.116126] ? trace_hardirqs_off+0x10/0x10 [ 79.120831] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 79.125868] ? find_held_lock+0x36/0x1d0 [ 79.130070] ? lock_downgrade+0x7f0/0x7f0 [ 79.135686] ? __fget+0x1ca/0x2f0 [ 79.139141] ? __fget_light+0x166/0x200 [ 79.143103] ? __fdget+0xe/0x10 [ 79.146467] ? sockfd_lookup_light+0x1c/0x150 [ 79.150953] __sys_sendmsg+0xc1/0x140 [ 79.154741] ? SyS_shutdown+0x180/0x180 [ 79.158738] ? __sb_end_write+0xa4/0xd0 [ 79.162709] ? mutex_unlock+0xd/0x10 [ 79.166475] ? do_syscall_64+0x4c/0x5b0 [ 79.170499] ? __sys_sendmsg+0x140/0x140 [ 79.174576] SyS_sendmsg+0xd/0x20 [ 79.178025] do_syscall_64+0x1c7/0x5b0 [ 79.181893] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 79.186718] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 79.191899] RIP: 0033:0x459ef9 [ 79.195107] RSP: 002b:00007fa8a10f3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 79.202805] RAX: ffffffffffffffda RBX: 00007fa8a10f3c90 RCX: 0000000000459ef9 [ 79.210073] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 79.217323] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 79.224574] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8a10f46d4 [ 79.231829] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 79.244829] team0: Port device team_slave_1 removed [ 79.250665] batman_adv: batadv0: Adding interface: team_slave_1 [ 79.257117] batman_adv: batadv0: The MTU of interface team_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. [ 79.283378] batman_adv: batadv0: Not using interface team_slave_1 (retrying later): interface not active [ 79.295525] FAULT_INJECTION: forcing a failure. [ 79.295525] name failslab, interval 1, probability 0, space 0, times 0 [ 79.312211] CPU: 0 PID: 7279 Comm: syz-executor.4 Not tainted 4.14.173-syzkaller #0 [ 79.320040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.329507] Call Trace: [ 79.332088] dump_stack+0xf7/0x13b [ 79.335649] should_fail.cold.3+0x105/0x14b [ 79.339962] should_failslab+0xba/0xf0 [ 79.343885] kmem_cache_alloc+0x2cf/0x790 [ 79.348094] ? memcpy+0x45/0x50 [ 79.351367] ? kstrdup+0x42/0x60 [ 79.354739] __kernfs_new_node+0x63/0x470 [ 79.358892] ? lock_downgrade+0x7f0/0x7f0 [ 79.363032] kernfs_new_node+0x5e/0xe0 [ 79.366916] kernfs_create_link+0x25/0x130 [ 79.371144] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 79.376318] sysfs_create_link+0x43/0xb0 [ 79.380636] netdev_adjacent_sysfs_add+0x94/0xb0 [ 79.385402] ? napi_disable+0x80/0x80 [ 79.389595] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 79.394777] __netdev_upper_dev_link+0x174/0x1f0 [ 79.400232] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 79.405259] netdev_master_upper_dev_link+0x14/0x20 [ 79.410265] batadv_hardif_enable_interface+0x1af/0x990 [ 79.415959] batadv_softif_slave_add+0x82/0xe0 [ 79.420559] do_set_master+0x163/0x1f0 [ 79.424434] do_setlink+0x9dd/0x2c50 [ 79.428156] ? find_held_lock+0x36/0x1d0 [ 79.432216] ? rtnl_register+0x20/0x20 [ 79.436086] ? load_balance+0xb38/0x2190 [ 79.440258] ? lock_downgrade+0x7f0/0x7f0 [ 79.444686] ? lock_pin_lock+0x340/0x340 [ 79.448879] ? __lock_acquire+0x6a4/0x4500 [ 79.453109] ? trace_hardirqs_off+0x10/0x10 [ 79.457603] ? __lock_is_held+0xb5/0x140 [ 79.461776] ? trace_hardirqs_off+0x10/0x10 [ 79.466166] ? trace_hardirqs_off+0x10/0x10 [ 79.470475] rtnl_newlink+0xe0c/0x1390 [ 79.474363] ? rtnl_link_unregister+0x270/0x270 [ 79.479560] ? finish_task_switch+0x178/0x650 [ 79.484036] ? finish_task_switch+0x14d/0x650 [ 79.488653] ? find_held_lock+0x36/0x1d0 [ 79.493007] ? __mutex_lock+0x8b7/0x14c0 [ 79.497073] ? lock_downgrade+0x7f0/0x7f0 [ 79.501204] ? do_raw_spin_unlock+0x16a/0x250 [ 79.505709] rtnetlink_rcv_msg+0x34f/0x9d0 [ 79.510050] ? rtnl_bridge_getlink+0x760/0x760 [ 79.514712] ? find_held_lock+0x36/0x1d0 [ 79.518955] netlink_rcv_skb+0x133/0x370 [ 79.523001] ? rtnl_bridge_getlink+0x760/0x760 [ 79.527700] ? netlink_ack+0xa00/0xa00 [ 79.531673] ? netlink_deliver_tap+0x8e/0x920 [ 79.536471] rtnetlink_rcv+0x10/0x20 [ 79.540382] netlink_unicast+0x40d/0x5f0 [ 79.544430] ? netlink_attachskb+0x6e0/0x6e0 [ 79.548914] netlink_sendmsg+0x730/0xbd0 [ 79.552962] ? netlink_unicast+0x5f0/0x5f0 [ 79.557189] ? selinux_socket_sendmsg+0x31/0x40 [ 79.561860] ? security_socket_sendmsg+0x6a/0xa0 [ 79.566626] ? netlink_unicast+0x5f0/0x5f0 [ 79.570899] sock_sendmsg+0xb5/0xf0 [ 79.574645] ___sys_sendmsg+0x625/0x920 [ 79.578616] ? trace_hardirqs_off+0x10/0x10 [ 79.583011] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 79.587761] ? find_held_lock+0x36/0x1d0 [ 79.591853] ? lock_downgrade+0x7f0/0x7f0 [ 79.596349] ? __fget+0x1ca/0x2f0 [ 79.599794] ? __fget_light+0x166/0x200 [ 79.603806] ? __fdget+0xe/0x10 [ 79.607067] ? sockfd_lookup_light+0x1c/0x150 [ 79.611540] __sys_sendmsg+0xc1/0x140 [ 79.615332] ? SyS_shutdown+0x180/0x180 [ 79.619293] ? __sb_end_write+0xa4/0xd0 [ 79.624644] ? mutex_unlock+0xd/0x10 [ 79.628358] ? do_syscall_64+0x4c/0x5b0 [ 79.632321] ? __sys_sendmsg+0x140/0x140 [ 79.636385] SyS_sendmsg+0xd/0x20 [ 79.640283] do_syscall_64+0x1c7/0x5b0 [ 79.644153] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 79.648990] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 79.654160] RIP: 0033:0x459ef9 [ 79.657330] RSP: 002b:00007fd91524ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 79.665039] RAX: ffffffffffffffda RBX: 00007fd91524ec90 RCX: 0000000000459ef9 [ 79.672294] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 79.679560] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 79.686844] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91524f6d4 [ 79.694168] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 79.704026] FAULT_INJECTION: forcing a failure. [ 79.704026] name failslab, interval 1, probability 0, space 0, times 0 [ 79.715939] CPU: 0 PID: 7283 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0 [ 79.723755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.733109] Call Trace: [ 79.735697] dump_stack+0xf7/0x13b [ 79.739226] should_fail.cold.3+0x105/0x14b [ 79.744322] should_failslab+0xba/0xf0 [ 79.748218] kmem_cache_alloc_node+0x287/0x790 [ 79.752794] __alloc_skb+0x92/0x500 [ 79.756403] ? skb_trim+0x160/0x160 [ 79.760134] ? if_nlmsg_size+0x2d9/0x6f0 [ 79.764323] rtmsg_ifinfo_build_skb+0x68/0x120 [ 79.768896] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 79.773744] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 79.778668] rtnetlink_event+0xc2/0x110 [ 79.782629] notifier_call_chain+0xd6/0x150 [ 79.786936] raw_notifier_call_chain+0x11/0x20 [ 79.791503] call_netdevice_notifiers_info+0x4b/0x60 [ 79.796585] __netdev_upper_dev_link+0x18e/0x1f0 [ 79.801331] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 79.806135] netdev_master_upper_dev_link+0x14/0x20 [ 79.811149] batadv_hardif_enable_interface+0x1af/0x990 [ 79.816511] batadv_softif_slave_add+0x82/0xe0 [ 79.821198] do_set_master+0x163/0x1f0 [ 79.825116] do_setlink+0x9dd/0x2c50 [ 79.828824] ? rtnl_register+0x20/0x20 [ 79.832729] ? trace_hardirqs_on+0x10/0x10 [ 79.836945] ? trace_hardirqs_off+0x10/0x10 [ 79.841348] ? __lock_acquire+0x6a4/0x4500 [ 79.845565] ? trace_hardirqs_off+0x10/0x10 [ 79.849887] rtnl_newlink+0xe0c/0x1390 [ 79.853757] ? rtnl_link_unregister+0x270/0x270 [ 79.858405] ? finish_task_switch+0x178/0x650 [ 79.862893] ? finish_task_switch+0x14d/0x650 [ 79.867379] ? find_held_lock+0x36/0x1d0 [ 79.871421] ? __mutex_lock+0x8b7/0x14c0 [ 79.875458] ? lock_downgrade+0x7f0/0x7f0 [ 79.879611] ? do_raw_spin_unlock+0x16a/0x250 [ 79.884207] rtnetlink_rcv_msg+0x34f/0x9d0 [ 79.888465] ? rtnl_bridge_getlink+0x760/0x760 [ 79.893036] ? find_held_lock+0x36/0x1d0 [ 79.897084] netlink_rcv_skb+0x133/0x370 [ 79.901134] ? rtnl_bridge_getlink+0x760/0x760 [ 79.905696] ? netlink_ack+0xa00/0xa00 [ 79.909563] ? netlink_deliver_tap+0x8e/0x920 [ 79.914103] rtnetlink_rcv+0x10/0x20 [ 79.917828] netlink_unicast+0x40d/0x5f0 [ 79.921869] ? netlink_attachskb+0x6e0/0x6e0 [ 79.926263] netlink_sendmsg+0x730/0xbd0 [ 79.930348] ? netlink_unicast+0x5f0/0x5f0 [ 79.934589] ? selinux_socket_sendmsg+0x31/0x40 [ 79.939261] ? security_socket_sendmsg+0x6a/0xa0 [ 79.944004] ? netlink_unicast+0x5f0/0x5f0 [ 79.948223] sock_sendmsg+0xb5/0xf0 [ 79.951857] ___sys_sendmsg+0x625/0x920 [ 79.955814] ? trace_hardirqs_off+0x10/0x10 [ 79.960124] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 79.965070] ? find_held_lock+0x36/0x1d0 [ 79.969112] ? lock_downgrade+0x7f0/0x7f0 [ 79.973261] ? __fget+0x1ca/0x2f0 [ 79.976703] ? __fget_light+0x166/0x200 [ 79.980676] ? __fdget+0xe/0x10 [ 79.983945] ? sockfd_lookup_light+0x1c/0x150 [ 79.988420] __sys_sendmsg+0xc1/0x140 [ 79.992219] ? SyS_shutdown+0x180/0x180 [ 79.996191] ? __sb_end_write+0xa4/0xd0 [ 80.000145] ? mutex_unlock+0xd/0x10 [ 80.003842] ? do_syscall_64+0x4c/0x5b0 [ 80.007793] ? __sys_sendmsg+0x140/0x140 [ 80.011840] SyS_sendmsg+0xd/0x20 [ 80.015447] do_syscall_64+0x1c7/0x5b0 [ 80.019318] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 80.024147] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 80.029319] RIP: 0033:0x459ef9 [ 80.032649] RSP: 002b:00007f2d8616ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 80.040492] RAX: ffffffffffffffda RBX: 00007f2d8616ac90 RCX: 0000000000459ef9 [ 80.047760] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 80.055014] RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 [ 80.062280] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d8616b6d4 [ 80.069529] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000005 [ 80.084089] batman_adv: batadv0: Adding interface: hsr_slave_0 [ 80.091058] batman_adv: batadv0: The MTU of interface hsr_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. [ 80.116407] batman_adv: batadv0: Interface activated: hsr_slave_0 [ 80.124578] FAULT_INJECTION: forcing a failure. [ 80.124578] name failslab, interval 1, probability 0, space 0, times 0 [ 80.142988] CPU: 0 PID: 7286 Comm: syz-executor.1 Not tainted 4.14.173-syzkaller #0 [ 80.150817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.160441] Call Trace: [ 80.163026] dump_stack+0xf7/0x13b [ 80.166626] should_fail.cold.3+0x105/0x14b [ 80.171050] should_failslab+0xba/0xf0 [ 80.174929] kmem_cache_alloc_node_trace+0x279/0x780 [ 80.180137] __kmalloc_node_track_caller+0x3c/0x70 [ 80.185099] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 80.189837] __alloc_skb+0xc1/0x500 [ 80.193486] ? skb_trim+0x160/0x160 [ 80.197094] ? if_nlmsg_size+0x2d9/0x6f0 [ 80.201134] rtmsg_ifinfo_build_skb+0x68/0x120 [ 80.205700] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 80.210534] rtmsg_ifinfo+0x4a/0x70 [ 80.214159] dev_close_many+0x287/0x610 [ 80.218136] ? list_netdevice+0x4b0/0x4b0 [ 80.222282] ? mark_held_locks+0xc7/0x130 [ 80.226413] ? dev_mc_unsync+0x165/0x1a5 [ 80.230468] dev_close.part.89+0xe5/0x190 [ 80.234613] ? dev_close_many+0x610/0x610 [ 80.238757] ? dev_mc_unsync+0x165/0x1a5 [ 80.242815] ? __local_bh_enable_ip+0x9c/0x180 [ 80.247383] ? _raw_spin_unlock_bh+0x30/0x40 [ 80.251782] dev_close+0x40/0x50 [ 80.255134] team_port_del+0x2c0/0x770 [ 80.259085] team_del_slave+0x34/0x70 [ 80.262879] do_set_master+0xb6/0x1f0 [ 80.266747] do_setlink+0x9dd/0x2c50 [ 80.270458] ? rtnl_register+0x20/0x20 [ 80.274322] ? __lock_acquire+0x6a4/0x4500 [ 80.278535] ? trace_hardirqs_on+0x10/0x10 [ 80.282759] ? trace_hardirqs_off+0x10/0x10 [ 80.287063] ? __lock_acquire+0x6a4/0x4500 [ 80.291345] ? trace_hardirqs_off+0x10/0x10 [ 80.295671] rtnl_newlink+0xe0c/0x1390 [ 80.299543] ? rtnl_newlink+0x6d0/0x1390 [ 80.303591] ? rtnl_link_unregister+0x270/0x270 [ 80.308249] ? finish_task_switch+0x178/0x650 [ 80.312843] ? finish_task_switch+0x14d/0x650 [ 80.317328] ? find_held_lock+0x36/0x1d0 [ 80.321378] ? __mutex_lock+0x8b7/0x14c0 [ 80.325595] ? lock_downgrade+0x7f0/0x7f0 [ 80.329724] ? do_raw_spin_unlock+0x16a/0x250 [ 80.334227] rtnetlink_rcv_msg+0x34f/0x9d0 [ 80.338446] ? rtnl_bridge_getlink+0x760/0x760 [ 80.343006] ? find_held_lock+0x36/0x1d0 [ 80.347059] netlink_rcv_skb+0x133/0x370 [ 80.351097] ? rtnl_bridge_getlink+0x760/0x760 [ 80.355657] ? netlink_ack+0xa00/0xa00 [ 80.359525] ? netlink_deliver_tap+0x8e/0x920 [ 80.364005] rtnetlink_rcv+0x10/0x20 [ 80.367706] netlink_unicast+0x40d/0x5f0 [ 80.371756] ? netlink_attachskb+0x6e0/0x6e0 [ 80.376147] netlink_sendmsg+0x730/0xbd0 [ 80.380192] ? netlink_unicast+0x5f0/0x5f0 [ 80.384418] ? selinux_socket_sendmsg+0x31/0x40 [ 80.389067] ? security_socket_sendmsg+0x6a/0xa0 [ 80.393801] ? netlink_unicast+0x5f0/0x5f0 [ 80.398013] sock_sendmsg+0xb5/0xf0 [ 80.401617] ___sys_sendmsg+0x625/0x920 [ 80.405580] ? trace_hardirqs_off+0x10/0x10 [ 80.409883] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 80.414627] ? find_held_lock+0x36/0x1d0 [ 80.418667] ? lock_downgrade+0x7f0/0x7f0 [ 80.422803] ? __fget+0x1ca/0x2f0 [ 80.426237] ? __fget_light+0x166/0x200 [ 80.430197] ? __fdget+0xe/0x10 [ 80.433463] ? sockfd_lookup_light+0x1c/0x150 [ 80.437933] __sys_sendmsg+0xc1/0x140 [ 80.441723] ? SyS_shutdown+0x180/0x180 [ 80.445681] ? __sb_end_write+0xa4/0xd0 [ 80.449649] ? mutex_unlock+0xd/0x10 [ 80.453350] ? do_syscall_64+0x4c/0x5b0 [ 80.457302] ? __sys_sendmsg+0x140/0x140 [ 80.461341] SyS_sendmsg+0xd/0x20 [ 80.464777] do_syscall_64+0x1c7/0x5b0 [ 80.468655] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 80.473492] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 80.478685] RIP: 0033:0x459ef9 [ 80.481868] RSP: 002b:00007f168d5e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 80.489557] RAX: ffffffffffffffda RBX: 00007f168d5e9c90 RCX: 0000000000459ef9 [ 80.496820] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 80.504168] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 80.511444] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f168d5ea6d4 [ 80.518696] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 80.528576] team0: Port device team_slave_1 removed [ 80.534716] batman_adv: batadv0: Adding interface: team_slave_1 [ 80.541744] batman_adv: batadv0: The MTU of interface team_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. 2020/03/12 23:45:00 executed programs: 122 [ 80.567174] batman_adv: batadv0: Not using interface team_slave_1 (retrying later): interface not active [ 80.589099] FAULT_INJECTION: forcing a failure. [ 80.589099] name failslab, interval 1, probability 0, space 0, times 0 [ 80.606191] CPU: 1 PID: 7292 Comm: syz-executor.5 Not tainted 4.14.173-syzkaller #0 [ 80.614101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.623444] Call Trace: [ 80.626218] dump_stack+0xf7/0x13b [ 80.629742] should_fail.cold.3+0x105/0x14b [ 80.634125] should_failslab+0xba/0xf0 [ 80.638095] kmem_cache_alloc_node_trace+0x279/0x780 [ 80.643253] __kmalloc_node_track_caller+0x3c/0x70 [ 80.648279] __kmalloc_reserve.isra.36+0x2c/0xc0 [ 80.653026] __alloc_skb+0xc1/0x500 [ 80.656744] ? skb_trim+0x160/0x160 [ 80.660359] ? if_nlmsg_size+0x2d9/0x6f0 [ 80.664403] rtmsg_ifinfo_build_skb+0x68/0x120 [ 80.668970] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 80.673808] rtmsg_ifinfo+0x4a/0x70 [ 80.677440] dev_close_many+0x287/0x610 [ 80.681504] ? list_netdevice+0x4b0/0x4b0 [ 80.685667] ? mark_held_locks+0xc7/0x130 [ 80.689894] ? dev_mc_unsync+0x165/0x1a5 [ 80.693952] dev_close.part.89+0xe5/0x190 [ 80.698097] ? dev_close_many+0x610/0x610 [ 80.702245] ? dev_mc_unsync+0x165/0x1a5 [ 80.706293] ? __local_bh_enable_ip+0x9c/0x180 [ 80.713832] ? _raw_spin_unlock_bh+0x30/0x40 [ 80.718228] dev_close+0x40/0x50 [ 80.721608] team_port_del+0x2c0/0x770 [ 80.725500] team_del_slave+0x34/0x70 [ 80.729370] do_set_master+0xb6/0x1f0 [ 80.733183] do_setlink+0x9dd/0x2c50 [ 80.737871] ? rtnl_register+0x20/0x20 [ 80.741874] ? trace_hardirqs_on+0x10/0x10 [ 80.746124] ? trace_hardirqs_off+0x10/0x10 [ 80.750438] ? find_held_lock+0x36/0x1d0 [ 80.754579] ? find_held_lock+0x36/0x1d0 [ 80.758627] ? free_one_page+0x9c4/0x1050 [ 80.762778] ? lock_downgrade+0x7f0/0x7f0 [ 80.766925] ? __this_cpu_preempt_check+0x13/0x20 [ 80.771761] ? do_raw_spin_unlock+0x16a/0x250 [ 80.776380] rtnl_newlink+0xe0c/0x1390 [ 80.780360] ? rtnl_newlink+0x6d0/0x1390 [ 80.784414] ? rtnl_link_unregister+0x270/0x270 [ 80.789066] ? finish_task_switch+0x448/0x650 [ 80.793556] ? find_held_lock+0x36/0x1d0 [ 80.797606] ? __mutex_lock+0x8b7/0x14c0 [ 80.801651] ? lock_downgrade+0x7f0/0x7f0 [ 80.805799] ? do_raw_spin_unlock+0x16a/0x250 [ 80.810294] rtnetlink_rcv_msg+0x34f/0x9d0 [ 80.814523] ? rtnl_bridge_getlink+0x760/0x760 [ 80.819103] ? find_held_lock+0x36/0x1d0 [ 80.823159] netlink_rcv_skb+0x133/0x370 [ 80.827214] ? rtnl_bridge_getlink+0x760/0x760 [ 80.831788] ? netlink_ack+0xa00/0xa00 [ 80.835666] ? netlink_deliver_tap+0x8e/0x920 [ 80.840156] rtnetlink_rcv+0x10/0x20 [ 80.843860] netlink_unicast+0x40d/0x5f0 [ 80.847902] ? netlink_attachskb+0x6e0/0x6e0 [ 80.852466] netlink_sendmsg+0x730/0xbd0 [ 80.856508] ? netlink_unicast+0x5f0/0x5f0 [ 80.860722] ? selinux_socket_sendmsg+0x31/0x40 [ 80.865371] ? security_socket_sendmsg+0x6a/0xa0 [ 80.870108] ? netlink_unicast+0x5f0/0x5f0 [ 80.874336] sock_sendmsg+0xb5/0xf0 [ 80.877952] ___sys_sendmsg+0x625/0x920 [ 80.881936] ? trace_hardirqs_off+0x10/0x10 [ 80.886287] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 80.891037] ? find_held_lock+0x36/0x1d0 [ 80.895091] ? lock_downgrade+0x7f0/0x7f0 [ 80.899234] ? __fget+0x1ca/0x2f0 [ 80.902680] ? __fget_light+0x166/0x200 [ 80.906648] ? __fdget+0xe/0x10 [ 80.909909] ? sockfd_lookup_light+0x1c/0x150 [ 80.914383] __sys_sendmsg+0xc1/0x140 [ 80.918608] ? SyS_shutdown+0x180/0x180 [ 80.922574] ? __sb_end_write+0xa4/0xd0 [ 80.926536] ? mutex_unlock+0xd/0x10 [ 80.930232] ? do_syscall_64+0x4c/0x5b0 [ 80.934183] ? __sys_sendmsg+0x140/0x140 [ 80.938222] SyS_sendmsg+0xd/0x20 [ 80.941662] do_syscall_64+0x1c7/0x5b0 [ 80.945532] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 80.950359] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 80.955535] RIP: 0033:0x459ef9 [ 80.958701] RSP: 002b:00007f5fa9badc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 80.966388] RAX: ffffffffffffffda RBX: 00007f5fa9badc90 RCX: 0000000000459ef9 [ 80.973641] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 80.980893] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 80.988152] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fa9bae6d4 [ 80.995400] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 81.012194] team0: Port device team_slave_1 removed [ 81.018034] batman_adv: batadv0: Adding interface: team_slave_1 [ 81.024675] batman_adv: batadv0: The MTU of interface team_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. [ 81.050191] batman_adv: batadv0: Not using interface team_slave_1 (retrying later): interface not active [ 81.063041] FAULT_INJECTION: forcing a failure. [ 81.063041] name failslab, interval 1, probability 0, space 0, times 0 [ 81.074359] CPU: 1 PID: 7299 Comm: syz-executor.4 Not tainted 4.14.173-syzkaller #0 [ 81.082149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.091501] Call Trace: [ 81.094106] dump_stack+0xf7/0x13b [ 81.097652] should_fail.cold.3+0x105/0x14b [ 81.101990] should_failslab+0xba/0xf0 [ 81.105996] kmem_cache_alloc+0x2cf/0x790 [ 81.110140] ? memcpy+0x45/0x50 [ 81.113421] ? kstrdup+0x42/0x60 [ 81.116806] __kernfs_new_node+0x63/0x470 [ 81.121088] ? lock_downgrade+0x7f0/0x7f0 [ 81.125230] kernfs_new_node+0x5e/0xe0 [ 81.131620] kernfs_create_link+0x25/0x130 [ 81.135927] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 81.141107] sysfs_create_link+0x43/0xb0 [ 81.145176] netdev_adjacent_sysfs_add+0x94/0xb0 [ 81.149990] ? napi_disable+0x80/0x80 [ 81.153973] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 81.159373] __netdev_upper_dev_link+0x174/0x1f0 [ 81.164126] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 81.169055] netdev_master_upper_dev_link+0x14/0x20 [ 81.174065] batadv_hardif_enable_interface+0x1af/0x990 [ 81.179429] batadv_softif_slave_add+0x82/0xe0 [ 81.184003] do_set_master+0x163/0x1f0 [ 81.187881] do_setlink+0x9dd/0x2c50 [ 81.191594] ? __lock_acquire+0x6a4/0x4500 [ 81.195847] ? trace_hardirqs_off+0x10/0x10 [ 81.200604] ? rtnl_register+0x20/0x20 [ 81.204494] ? trace_hardirqs_on+0x10/0x10 [ 81.208715] ? __lock_acquire+0x6a4/0x4500 [ 81.212999] ? trace_hardirqs_off+0x10/0x10 [ 81.217310] ? trace_hardirqs_off+0x10/0x10 [ 81.221650] rtnl_newlink+0xe0c/0x1390 [ 81.225531] ? rtnl_link_unregister+0x270/0x270 [ 81.230194] ? finish_task_switch+0x178/0x650 [ 81.234701] ? finish_task_switch+0x14d/0x650 [ 81.239672] ? find_held_lock+0x36/0x1d0 [ 81.243734] ? __mutex_lock+0x8b7/0x14c0 [ 81.247879] ? lock_downgrade+0x7f0/0x7f0 [ 81.252025] ? do_raw_spin_unlock+0x16a/0x250 [ 81.256517] rtnetlink_rcv_msg+0x34f/0x9d0 [ 81.260745] ? rtnl_bridge_getlink+0x760/0x760 [ 81.265321] ? find_held_lock+0x36/0x1d0 [ 81.269369] netlink_rcv_skb+0x133/0x370 [ 81.273421] ? rtnl_bridge_getlink+0x760/0x760 [ 81.277990] ? netlink_ack+0xa00/0xa00 [ 81.281871] ? netlink_deliver_tap+0x8e/0x920 [ 81.286365] rtnetlink_rcv+0x10/0x20 [ 81.290068] netlink_unicast+0x40d/0x5f0 [ 81.294231] ? netlink_attachskb+0x6e0/0x6e0 [ 81.298633] netlink_sendmsg+0x730/0xbd0 [ 81.302694] ? netlink_unicast+0x5f0/0x5f0 [ 81.306951] ? selinux_socket_sendmsg+0x31/0x40 [ 81.311617] ? security_socket_sendmsg+0x6a/0xa0 [ 81.316354] ? netlink_unicast+0x5f0/0x5f0 [ 81.320580] sock_sendmsg+0xb5/0xf0 [ 81.324201] ___sys_sendmsg+0x625/0x920 [ 81.328163] ? trace_hardirqs_off+0x10/0x10 [ 81.332479] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 81.337219] ? find_held_lock+0x36/0x1d0 [ 81.341390] ? lock_downgrade+0x7f0/0x7f0 [ 81.345533] ? __fget+0x1ca/0x2f0 [ 81.348974] ? __fget_light+0x166/0x200 [ 81.352937] ? __fdget+0xe/0x10 [ 81.356204] ? sockfd_lookup_light+0x1c/0x150 [ 81.360695] __sys_sendmsg+0xc1/0x140 [ 81.364490] ? SyS_shutdown+0x180/0x180 [ 81.368446] ? __sb_end_write+0xa4/0xd0 [ 81.372421] ? mutex_unlock+0xd/0x10 [ 81.376127] ? do_syscall_64+0x4c/0x5b0 [ 81.380086] ? __sys_sendmsg+0x140/0x140 [ 81.384153] SyS_sendmsg+0xd/0x20 [ 81.387614] do_syscall_64+0x1c7/0x5b0 [ 81.391482] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 81.396306] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 81.401477] RIP: 0033:0x459ef9 [ 81.404672] RSP: 002b:00007fd91524ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 81.412419] RAX: ffffffffffffffda RBX: 00007fd91524ec90 RCX: 0000000000459ef9 [ 81.419726] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 81.427088] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 81.434443] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91524f6d4 [ 81.441699] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 81.458697] FAULT_INJECTION: forcing a failure. [ 81.458697] name failslab, interval 1, probability 0, space 0, times 0 [ 81.478960] CPU: 0 PID: 7302 Comm: syz-executor.2 Not tainted 4.14.173-syzkaller #0 [ 81.486845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.496284] Call Trace: [ 81.498868] dump_stack+0xf7/0x13b [ 81.502404] should_fail.cold.3+0x105/0x14b [ 81.506739] should_failslab+0xba/0xf0 [ 81.510616] kmem_cache_alloc_node+0x287/0x790 [ 81.515188] __alloc_skb+0x92/0x500 [ 81.518797] ? skb_trim+0x160/0x160 [ 81.522420] ? if_nlmsg_size+0x2d9/0x6f0 [ 81.526477] rtmsg_ifinfo_build_skb+0x68/0x120 [ 81.531054] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 81.535940] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 81.540870] rtnetlink_event+0xc2/0x110 [ 81.544842] notifier_call_chain+0xd6/0x150 [ 81.549155] raw_notifier_call_chain+0x11/0x20 [ 81.553738] call_netdevice_notifiers_info+0x4b/0x60 [ 81.558849] __netdev_upper_dev_link+0x18e/0x1f0 [ 81.563593] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 81.568348] netdev_master_upper_dev_link+0x14/0x20 [ 81.573354] batadv_hardif_enable_interface+0x1af/0x990 [ 81.578712] batadv_softif_slave_add+0x82/0xe0 [ 81.583276] do_set_master+0x163/0x1f0 [ 81.587141] do_setlink+0x9dd/0x2c50 [ 81.590853] ? find_held_lock+0x36/0x1d0 [ 81.594896] ? rtnl_register+0x20/0x20 [ 81.598778] ? load_balance+0xb38/0x2190 [ 81.602841] ? lock_downgrade+0x7f0/0x7f0 [ 81.606970] ? lock_pin_lock+0x340/0x340 [ 81.611015] ? __lock_acquire+0x6a4/0x4500 [ 81.615254] ? trace_hardirqs_off+0x10/0x10 [ 81.619574] ? __lock_is_held+0xb5/0x140 [ 81.623627] ? trace_hardirqs_off+0x10/0x10 [ 81.627946] rtnl_newlink+0xe0c/0x1390 [ 81.631917] ? rtnl_link_unregister+0x270/0x270 [ 81.636575] ? finish_task_switch+0x178/0x650 [ 81.641143] ? finish_task_switch+0x14d/0x650 [ 81.645761] ? find_held_lock+0x36/0x1d0 [ 81.649814] ? __mutex_lock+0x8b7/0x14c0 [ 81.653991] ? lock_downgrade+0x7f0/0x7f0 [ 81.658149] ? do_raw_spin_unlock+0x16a/0x250 [ 81.662732] rtnetlink_rcv_msg+0x34f/0x9d0 [ 81.666950] ? rtnl_bridge_getlink+0x760/0x760 [ 81.671518] ? find_held_lock+0x36/0x1d0 [ 81.675582] netlink_rcv_skb+0x133/0x370 [ 81.679627] ? rtnl_bridge_getlink+0x760/0x760 [ 81.684188] ? netlink_ack+0xa00/0xa00 [ 81.688066] ? netlink_deliver_tap+0x8e/0x920 [ 81.692539] rtnetlink_rcv+0x10/0x20 [ 81.696232] netlink_unicast+0x40d/0x5f0 [ 81.700276] ? netlink_attachskb+0x6e0/0x6e0 [ 81.704673] netlink_sendmsg+0x730/0xbd0 [ 81.708724] ? netlink_unicast+0x5f0/0x5f0 [ 81.712952] ? selinux_socket_sendmsg+0x31/0x40 [ 81.717609] ? security_socket_sendmsg+0x6a/0xa0 [ 81.722379] ? netlink_unicast+0x5f0/0x5f0 [ 81.726596] sock_sendmsg+0xb5/0xf0 [ 81.730223] ___sys_sendmsg+0x625/0x920 [ 81.734265] ? trace_hardirqs_off+0x10/0x10 [ 81.738574] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 81.743318] ? find_held_lock+0x36/0x1d0 [ 81.747362] ? lock_downgrade+0x7f0/0x7f0 [ 81.751493] ? __fget+0x1ca/0x2f0 [ 81.755099] ? __fget_light+0x166/0x200 [ 81.759056] ? __fdget+0xe/0x10 [ 81.762318] ? sockfd_lookup_light+0x1c/0x150 [ 81.766797] __sys_sendmsg+0xc1/0x140 [ 81.770590] ? SyS_shutdown+0x180/0x180 [ 81.774545] ? __sb_end_write+0xa4/0xd0 [ 81.778501] ? mutex_unlock+0xd/0x10 [ 81.782200] ? do_syscall_64+0x4c/0x5b0 [ 81.786155] ? __sys_sendmsg+0x140/0x140 [ 81.790215] SyS_sendmsg+0xd/0x20 [ 81.793650] do_syscall_64+0x1c7/0x5b0 [ 81.797522] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 81.802341] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 81.807525] RIP: 0033:0x459ef9 [ 81.810694] RSP: 002b:00007fa8a10f3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 81.818379] RAX: ffffffffffffffda RBX: 00007fa8a10f3c90 RCX: 0000000000459ef9 [ 81.825627] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 81.832891] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 81.840139] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8a10f46d4 [ 81.847402] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 81.859411] batman_adv: batadv0: Adding interface: hsr0 [ 81.865057] batman_adv: batadv0: The MTU of interface hsr0 is too small (1494) 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. [ 81.891717] batman_adv: batadv0: Interface activated: hsr0 [ 81.898863] FAULT_INJECTION: forcing a failure. [ 81.898863] name failslab, interval 1, probability 0, space 0, times 0 [ 81.914482] CPU: 1 PID: 7305 Comm: syz-executor.3 Not tainted 4.14.173-syzkaller #0 [ 81.922321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.931674] Call Trace: [ 81.934275] dump_stack+0xf7/0x13b [ 81.937832] should_fail.cold.3+0x105/0x14b [ 81.942170] should_failslab+0xba/0xf0 [ 81.946044] kmem_cache_alloc_node+0x287/0x790 [ 81.950607] __alloc_skb+0x92/0x500 [ 81.954218] ? skb_trim+0x160/0x160 [ 81.957835] ? if_nlmsg_size+0x2d9/0x6f0 [ 81.962060] rtmsg_ifinfo_build_skb+0x68/0x120 [ 81.967580] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 81.972424] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 81.977373] rtnetlink_event+0xc2/0x110 [ 81.981343] notifier_call_chain+0xd6/0x150 [ 81.985661] raw_notifier_call_chain+0x11/0x20 [ 81.990231] call_netdevice_notifiers_info+0x4b/0x60 [ 81.995322] __netdev_upper_dev_link+0x18e/0x1f0 [ 82.000084] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 82.004843] netdev_master_upper_dev_link+0x14/0x20 [ 82.009842] batadv_hardif_enable_interface+0x1af/0x990 [ 82.015199] batadv_softif_slave_add+0x82/0xe0 [ 82.019765] do_set_master+0x163/0x1f0 [ 82.023632] do_setlink+0x9dd/0x2c50 [ 82.027326] ? rtnl_register+0x20/0x20 [ 82.031207] ? __lock_acquire+0x6a4/0x4500 [ 82.035461] ? trace_hardirqs_off+0x10/0x10 [ 82.039765] rtnl_newlink+0xe0c/0x1390 [ 82.043663] ? rtnl_link_unregister+0x270/0x270 [ 82.048309] ? finish_task_switch+0x178/0x650 [ 82.052793] ? finish_task_switch+0x14d/0x650 [ 82.057267] ? find_held_lock+0x36/0x1d0 [ 82.061321] ? __mutex_lock+0x8b7/0x14c0 [ 82.065359] ? lock_downgrade+0x7f0/0x7f0 [ 82.069490] ? do_raw_spin_unlock+0x16a/0x250 [ 82.073995] rtnetlink_rcv_msg+0x34f/0x9d0 [ 82.078223] ? rtnl_bridge_getlink+0x760/0x760 [ 82.082792] ? find_held_lock+0x36/0x1d0 [ 82.086854] netlink_rcv_skb+0x133/0x370 [ 82.090910] ? rtnl_bridge_getlink+0x760/0x760 [ 82.095473] ? netlink_ack+0xa00/0xa00 [ 82.099340] ? netlink_deliver_tap+0x8e/0x920 [ 82.103874] rtnetlink_rcv+0x10/0x20 [ 82.107581] netlink_unicast+0x40d/0x5f0 [ 82.111624] ? netlink_attachskb+0x6e0/0x6e0 [ 82.116019] netlink_sendmsg+0x730/0xbd0 [ 82.120067] ? netlink_unicast+0x5f0/0x5f0 [ 82.124292] ? selinux_socket_sendmsg+0x31/0x40 [ 82.128942] ? security_socket_sendmsg+0x6a/0xa0 [ 82.133680] ? netlink_unicast+0x5f0/0x5f0 [ 82.137897] sock_sendmsg+0xb5/0xf0 [ 82.141506] ___sys_sendmsg+0x625/0x920 [ 82.145475] ? trace_hardirqs_off+0x10/0x10 [ 82.149780] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 82.154530] ? find_held_lock+0x36/0x1d0 [ 82.158576] ? lock_downgrade+0x7f0/0x7f0 [ 82.162708] ? __fget+0x1ca/0x2f0 [ 82.166985] ? __fget_light+0x166/0x200 [ 82.170949] ? __fdget+0xe/0x10 [ 82.174214] ? sockfd_lookup_light+0x1c/0x150 [ 82.178823] __sys_sendmsg+0xc1/0x140 [ 82.182629] ? SyS_shutdown+0x180/0x180 [ 82.186611] ? __sb_end_write+0xa4/0xd0 [ 82.190569] ? mutex_unlock+0xd/0x10 [ 82.194270] ? do_syscall_64+0x4c/0x5b0 [ 82.198229] ? __sys_sendmsg+0x140/0x140 [ 82.202283] SyS_sendmsg+0xd/0x20 [ 82.205734] do_syscall_64+0x1c7/0x5b0 [ 82.209610] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 82.214451] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 82.219626] RIP: 0033:0x459ef9 [ 82.222793] RSP: 002b:00007f2d8618bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 82.230481] RAX: ffffffffffffffda RBX: 00007f2d8618bc90 RCX: 0000000000459ef9 [ 82.237736] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 82.244993] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 82.252247] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d8618c6d4 [ 82.259507] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 82.269106] batman_adv: batadv0: Adding interface: hsr0 [ 82.274560] batman_adv: batadv0: The MTU of interface hsr0 is too small (1494) 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. [ 82.298922] batman_adv: batadv0: Interface activated: hsr0 [ 82.306392] FAULT_INJECTION: forcing a failure. [ 82.306392] name failslab, interval 1, probability 0, space 0, times 0 [ 82.338089] CPU: 0 PID: 7311 Comm: syz-executor.1 Not tainted 4.14.173-syzkaller #0 [ 82.345921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.356320] Call Trace: [ 82.358903] dump_stack+0xf7/0x13b [ 82.362432] should_fail.cold.3+0x105/0x14b [ 82.366746] should_failslab+0xba/0xf0 [ 82.370622] kmem_cache_alloc_node+0x287/0x790 [ 82.375322] __alloc_skb+0x92/0x500 [ 82.378942] ? skb_trim+0x160/0x160 [ 82.382683] ? if_nlmsg_size+0x2d9/0x6f0 [ 82.386726] rtmsg_ifinfo_build_skb+0x68/0x120 [ 82.391339] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 82.396161] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 82.401144] rtnetlink_event+0xc2/0x110 [ 82.405241] notifier_call_chain+0xd6/0x150 [ 82.409544] raw_notifier_call_chain+0x11/0x20 [ 82.414105] call_netdevice_notifiers_info+0x4b/0x60 [ 82.419205] __netdev_upper_dev_link+0x18e/0x1f0 [ 82.423951] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 82.428691] netdev_master_upper_dev_link+0x14/0x20 [ 82.433701] batadv_hardif_enable_interface+0x1af/0x990 [ 82.439047] batadv_softif_slave_add+0x82/0xe0 [ 82.443625] do_set_master+0x163/0x1f0 [ 82.447855] do_setlink+0x9dd/0x2c50 [ 82.451565] ? rtnl_register+0x20/0x20 [ 82.455453] ? trace_hardirqs_on+0x10/0x10 [ 82.459786] ? trace_hardirqs_off+0x10/0x10 [ 82.464142] ? find_held_lock+0x36/0x1d0 [ 82.468193] ? find_held_lock+0x36/0x1d0 [ 82.473287] ? free_one_page+0x9c4/0x1050 [ 82.477420] ? lock_downgrade+0x7f0/0x7f0 [ 82.481636] ? __this_cpu_preempt_check+0x13/0x20 [ 82.486566] ? do_raw_spin_unlock+0x16a/0x250 [ 82.491139] rtnl_newlink+0xe0c/0x1390 [ 82.495023] ? rtnl_link_unregister+0x270/0x270 [ 82.499683] ? finish_task_switch+0x448/0x650 [ 82.504189] ? find_held_lock+0x36/0x1d0 [ 82.508242] ? __mutex_lock+0x8b7/0x14c0 [ 82.512303] ? lock_downgrade+0x7f0/0x7f0 [ 82.516438] ? do_raw_spin_unlock+0x16a/0x250 [ 82.520934] rtnetlink_rcv_msg+0x34f/0x9d0 [ 82.525313] ? rtnl_bridge_getlink+0x760/0x760 [ 82.529882] ? find_held_lock+0x36/0x1d0 [ 82.533926] netlink_rcv_skb+0x133/0x370 [ 82.537970] ? rtnl_bridge_getlink+0x760/0x760 [ 82.542660] ? netlink_ack+0xa00/0xa00 [ 82.546635] ? netlink_deliver_tap+0x8e/0x920 [ 82.551304] rtnetlink_rcv+0x10/0x20 [ 82.555009] netlink_unicast+0x40d/0x5f0 [ 82.559143] ? netlink_attachskb+0x6e0/0x6e0 [ 82.563537] netlink_sendmsg+0x730/0xbd0 [ 82.567578] ? netlink_unicast+0x5f0/0x5f0 [ 82.571796] ? selinux_socket_sendmsg+0x31/0x40 [ 82.576464] ? security_socket_sendmsg+0x6a/0xa0 [ 82.581302] ? netlink_unicast+0x5f0/0x5f0 [ 82.585612] sock_sendmsg+0xb5/0xf0 [ 82.589225] ___sys_sendmsg+0x625/0x920 [ 82.593181] ? trace_hardirqs_off+0x10/0x10 [ 82.597481] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 82.602224] ? find_held_lock+0x36/0x1d0 [ 82.606271] ? lock_downgrade+0x7f0/0x7f0 [ 82.610675] ? __fget+0x1ca/0x2f0 [ 82.614115] ? __fget_light+0x166/0x200 [ 82.618083] ? __fdget+0xe/0x10 [ 82.621358] ? sockfd_lookup_light+0x1c/0x150 [ 82.625844] __sys_sendmsg+0xc1/0x140 [ 82.629629] ? SyS_shutdown+0x180/0x180 [ 82.633589] ? __sb_end_write+0xa4/0xd0 [ 82.637568] ? mutex_unlock+0xd/0x10 [ 82.641278] ? do_syscall_64+0x4c/0x5b0 [ 82.645242] ? __sys_sendmsg+0x140/0x140 [ 82.649449] SyS_sendmsg+0xd/0x20 [ 82.652900] do_syscall_64+0x1c7/0x5b0 [ 82.656775] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 82.661610] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 82.666792] RIP: 0033:0x459ef9 [ 82.669977] RSP: 002b:00007f168d5e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 82.677943] RAX: ffffffffffffffda RBX: 00007f168d5e9c90 RCX: 0000000000459ef9 [ 82.685202] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 82.692473] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 82.699989] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f168d5ea6d4 [ 82.707248] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 82.721045] batman_adv: batadv0: Adding interface: hsr_slave_0 [ 82.727222] batman_adv: batadv0: The MTU of interface hsr_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. [ 82.753134] batman_adv: batadv0: Interface activated: hsr_slave_0 [ 82.759928] FAULT_INJECTION: forcing a failure. [ 82.759928] name failslab, interval 1, probability 0, space 0, times 0 [ 82.771712] CPU: 1 PID: 7314 Comm: syz-executor.5 Not tainted 4.14.173-syzkaller #0 [ 82.779562] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.789102] Call Trace: [ 82.792305] dump_stack+0xf7/0x13b [ 82.795856] should_fail.cold.3+0x105/0x14b [ 82.800196] should_failslab+0xba/0xf0 [ 82.804088] kmem_cache_alloc_node+0x287/0x790 [ 82.808669] __alloc_skb+0x92/0x500 [ 82.812283] ? skb_trim+0x160/0x160 [ 82.815900] ? if_nlmsg_size+0x2d9/0x6f0 [ 82.819940] rtmsg_ifinfo_build_skb+0x68/0x120 [ 82.824502] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 82.829329] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 82.834239] rtnetlink_event+0xc2/0x110 [ 82.838207] notifier_call_chain+0xd6/0x150 [ 82.842597] raw_notifier_call_chain+0x11/0x20 [ 82.847156] call_netdevice_notifiers_info+0x4b/0x60 [ 82.852247] __netdev_upper_dev_link+0x18e/0x1f0 [ 82.856993] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 82.861733] netdev_master_upper_dev_link+0x14/0x20 [ 82.866738] batadv_hardif_enable_interface+0x1af/0x990 [ 82.872097] batadv_softif_slave_add+0x82/0xe0 [ 82.876671] do_set_master+0x163/0x1f0 [ 82.880538] do_setlink+0x9dd/0x2c50 [ 82.884232] ? rtnl_register+0x20/0x20 [ 82.888113] ? __lock_acquire+0x6a4/0x4500 [ 82.892348] ? trace_hardirqs_off+0x10/0x10 [ 82.896804] rtnl_newlink+0xe0c/0x1390 [ 82.900688] ? rtnl_link_unregister+0x270/0x270 [ 82.905343] ? finish_task_switch+0x178/0x650 [ 82.909822] ? finish_task_switch+0x14d/0x650 [ 82.914305] ? find_held_lock+0x36/0x1d0 [ 82.918410] ? __mutex_lock+0x8b7/0x14c0 [ 82.922459] ? lock_downgrade+0x7f0/0x7f0 [ 82.926590] ? do_raw_spin_unlock+0x16a/0x250 [ 82.931119] rtnetlink_rcv_msg+0x34f/0x9d0 [ 82.935345] ? rtnl_bridge_getlink+0x760/0x760 [ 82.939932] ? find_held_lock+0x36/0x1d0 [ 82.943977] netlink_rcv_skb+0x133/0x370 [ 82.948032] ? rtnl_bridge_getlink+0x760/0x760 [ 82.952601] ? netlink_ack+0xa00/0xa00 [ 82.956474] ? netlink_deliver_tap+0x8e/0x920 [ 82.960951] rtnetlink_rcv+0x10/0x20 [ 82.964653] netlink_unicast+0x40d/0x5f0 [ 82.968709] ? netlink_attachskb+0x6e0/0x6e0 [ 82.973124] netlink_sendmsg+0x730/0xbd0 [ 82.977262] ? netlink_unicast+0x5f0/0x5f0 [ 82.981481] ? selinux_socket_sendmsg+0x31/0x40 [ 82.986149] ? security_socket_sendmsg+0x6a/0xa0 [ 82.990889] ? netlink_unicast+0x5f0/0x5f0 [ 82.995123] sock_sendmsg+0xb5/0xf0 [ 82.998726] ___sys_sendmsg+0x625/0x920 [ 83.002681] ? trace_hardirqs_off+0x10/0x10 [ 83.006980] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 83.011720] ? find_held_lock+0x36/0x1d0 [ 83.016315] ? lock_downgrade+0x7f0/0x7f0 [ 83.020454] ? __fget+0x1ca/0x2f0 [ 83.023884] ? __fget_light+0x166/0x200 [ 83.027844] ? __fdget+0xe/0x10 [ 83.031117] ? sockfd_lookup_light+0x1c/0x150 [ 83.035615] __sys_sendmsg+0xc1/0x140 [ 83.039403] ? SyS_shutdown+0x180/0x180 [ 83.043363] ? __sb_end_write+0xa4/0xd0 [ 83.047324] ? mutex_unlock+0xd/0x10 [ 83.051031] ? do_syscall_64+0x4c/0x5b0 [ 83.054991] ? __sys_sendmsg+0x140/0x140 [ 83.059028] SyS_sendmsg+0xd/0x20 [ 83.062474] do_syscall_64+0x1c7/0x5b0 [ 83.066345] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 83.071176] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 83.076363] RIP: 0033:0x459ef9 [ 83.079542] RSP: 002b:00007f5fa9badc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 83.087248] RAX: ffffffffffffffda RBX: 00007f5fa9badc90 RCX: 0000000000459ef9 [ 83.094496] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 83.102020] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 83.109270] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fa9bae6d4 [ 83.116526] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 83.126292] batman_adv: batadv0: Adding interface: hsr_slave_0 [ 83.132443] batman_adv: batadv0: The MTU of interface hsr_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. [ 83.159099] batman_adv: batadv0: Interface activated: hsr_slave_0 [ 83.170376] FAULT_INJECTION: forcing a failure. [ 83.170376] name failslab, interval 1, probability 0, space 0, times 0 [ 83.238013] CPU: 0 PID: 7328 Comm: syz-executor.1 Not tainted 4.14.173-syzkaller #0 [ 83.245848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.255191] Call Trace: [ 83.257765] dump_stack+0xf7/0x13b [ 83.261306] should_fail.cold.3+0x105/0x14b [ 83.265619] should_failslab+0xba/0xf0 [ 83.269486] kmem_cache_alloc_node+0x287/0x790 [ 83.274063] __alloc_skb+0x92/0x500 [ 83.277664] ? skb_trim+0x160/0x160 [ 83.281271] ? if_nlmsg_size+0x2d9/0x6f0 [ 83.285325] rtmsg_ifinfo_build_skb+0x68/0x120 [ 83.289926] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 83.294758] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 83.299674] rtnetlink_event+0xc2/0x110 [ 83.303636] notifier_call_chain+0xd6/0x150 [ 83.307947] raw_notifier_call_chain+0x11/0x20 [ 83.312824] call_netdevice_notifiers_info+0x4b/0x60 [ 83.317935] __netdev_upper_dev_link+0x18e/0x1f0 [ 83.322687] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 83.327445] netdev_master_upper_dev_link+0x14/0x20 [ 83.332561] batadv_hardif_enable_interface+0x1af/0x990 [ 83.337914] batadv_softif_slave_add+0x82/0xe0 [ 83.342487] do_set_master+0x163/0x1f0 [ 83.346358] do_setlink+0x9dd/0x2c50 [ 83.350065] ? find_held_lock+0x36/0x1d0 [ 83.354106] ? rtnl_register+0x20/0x20 [ 83.357973] ? load_balance+0xb38/0x2190 [ 83.362020] ? lock_downgrade+0x7f0/0x7f0 [ 83.366171] ? lock_pin_lock+0x340/0x340 [ 83.370225] ? __lock_acquire+0x6a4/0x4500 [ 83.374652] ? trace_hardirqs_off+0x10/0x10 [ 83.378955] ? __lock_is_held+0xb5/0x140 [ 83.382999] ? trace_hardirqs_off+0x10/0x10 [ 83.387301] ? trace_hardirqs_off+0x10/0x10 [ 83.391630] rtnl_newlink+0xe0c/0x1390 [ 83.395524] ? rtnl_link_unregister+0x270/0x270 [ 83.400196] ? finish_task_switch+0x178/0x650 [ 83.404678] ? finish_task_switch+0x14d/0x650 [ 83.409192] ? find_held_lock+0x36/0x1d0 [ 83.413236] ? __mutex_lock+0x8b7/0x14c0 [ 83.417281] ? lock_downgrade+0x7f0/0x7f0 [ 83.421416] ? do_raw_spin_unlock+0x16a/0x250 [ 83.425920] rtnetlink_rcv_msg+0x34f/0x9d0 [ 83.430155] ? rtnl_bridge_getlink+0x760/0x760 [ 83.434917] ? find_held_lock+0x36/0x1d0 [ 83.438974] netlink_rcv_skb+0x133/0x370 [ 83.443261] ? rtnl_bridge_getlink+0x760/0x760 [ 83.447834] ? netlink_ack+0xa00/0xa00 [ 83.451710] ? netlink_deliver_tap+0x8e/0x920 [ 83.456251] rtnetlink_rcv+0x10/0x20 [ 83.459996] netlink_unicast+0x40d/0x5f0 [ 83.464049] ? netlink_attachskb+0x6e0/0x6e0 [ 83.468439] netlink_sendmsg+0x730/0xbd0 [ 83.472493] ? netlink_unicast+0x5f0/0x5f0 [ 83.476710] ? selinux_socket_sendmsg+0x31/0x40 [ 83.481357] ? security_socket_sendmsg+0x6a/0xa0 [ 83.486090] ? netlink_unicast+0x5f0/0x5f0 [ 83.490317] sock_sendmsg+0xb5/0xf0 [ 83.494046] ___sys_sendmsg+0x625/0x920 [ 83.498032] ? trace_hardirqs_off+0x10/0x10 [ 83.502334] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 83.507088] ? find_held_lock+0x36/0x1d0 [ 83.511138] ? lock_downgrade+0x7f0/0x7f0 [ 83.515294] ? __fget+0x1ca/0x2f0 [ 83.518726] ? __fget_light+0x166/0x200 [ 83.522679] ? __fdget+0xe/0x10 [ 83.526032] ? sockfd_lookup_light+0x1c/0x150 [ 83.530508] __sys_sendmsg+0xc1/0x140 [ 83.534302] ? SyS_shutdown+0x180/0x180 [ 83.538273] ? __sb_end_write+0xa4/0xd0 [ 83.542272] ? mutex_unlock+0xd/0x10 [ 83.545972] ? do_syscall_64+0x4c/0x5b0 [ 83.549924] ? __sys_sendmsg+0x140/0x140 [ 83.553964] SyS_sendmsg+0xd/0x20 [ 83.557435] do_syscall_64+0x1c7/0x5b0 [ 83.561301] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 83.566129] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 83.571300] RIP: 0033:0x459ef9 [ 83.574469] RSP: 002b:00007f168d5e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 83.582165] RAX: ffffffffffffffda RBX: 00007f168d5e9c90 RCX: 0000000000459ef9 [ 83.589414] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 83.596665] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 83.603917] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f168d5ea6d4 [ 83.611172] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 83.631350] batman_adv: batadv0: Adding interface: hsr_slave_1 [ 83.637522] batman_adv: batadv0: The MTU of interface hsr_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. [ 83.663218] batman_adv: batadv0: Interface activated: hsr_slave_1 [ 83.670974] FAULT_INJECTION: forcing a failure. [ 83.670974] name failslab, interval 1, probability 0, space 0, times 0 [ 83.722689] CPU: 1 PID: 7341 Comm: syz-executor.5 Not tainted 4.14.173-syzkaller #0 [ 83.730530] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.739886] Call Trace: [ 83.742475] dump_stack+0xf7/0x13b [ 83.746041] should_fail.cold.3+0x105/0x14b [ 83.750531] should_failslab+0xba/0xf0 [ 83.754455] kmem_cache_alloc+0x2cf/0x790 [ 83.758599] ? memcpy+0x45/0x50 [ 83.761867] ? kstrdup+0x42/0x60 [ 83.765236] __kernfs_new_node+0x63/0x470 [ 83.769376] ? lock_downgrade+0x7f0/0x7f0 [ 83.773653] kernfs_new_node+0x5e/0xe0 [ 83.777578] kernfs_create_link+0x25/0x130 [ 83.781802] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 83.786999] sysfs_create_link+0x43/0xb0 [ 83.791126] netdev_adjacent_sysfs_add+0x94/0xb0 [ 83.795902] ? napi_disable+0x80/0x80 [ 83.799759] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 83.804943] __netdev_upper_dev_link+0x174/0x1f0 [ 83.809793] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 83.814547] netdev_master_upper_dev_link+0x14/0x20 [ 83.819580] batadv_hardif_enable_interface+0x1af/0x990 [ 83.824945] batadv_softif_slave_add+0x82/0xe0 [ 83.829527] do_set_master+0x163/0x1f0 [ 83.833405] do_setlink+0x9dd/0x2c50 [ 83.837109] ? trace_hardirqs_on+0x10/0x10 [ 83.841327] ? find_held_lock+0x36/0x1d0 [ 83.845388] ? trace_hardirqs_off+0x10/0x10 [ 83.849702] ? rtnl_register+0x20/0x20 [ 83.853600] ? find_held_lock+0x36/0x1d0 [ 83.857671] ? __lock_acquire+0x6a4/0x4500 [ 83.861896] ? trace_hardirqs_off+0x10/0x10 [ 83.866257] ? trace_hardirqs_off+0x10/0x10 [ 83.870744] ? __lock_is_held+0xb5/0x140 [ 83.874793] ? trace_hardirqs_off+0x10/0x10 [ 83.879101] rtnl_newlink+0xe0c/0x1390 [ 83.882989] ? rtnl_link_unregister+0x270/0x270 [ 83.887715] ? finish_task_switch+0x178/0x650 [ 83.892192] ? finish_task_switch+0x14d/0x650 [ 83.896671] ? find_held_lock+0x36/0x1d0 [ 83.900726] ? __mutex_lock+0x8b7/0x14c0 [ 83.904785] ? lock_downgrade+0x7f0/0x7f0 [ 83.908936] ? do_raw_spin_unlock+0x16a/0x250 [ 83.913426] rtnetlink_rcv_msg+0x34f/0x9d0 [ 83.917644] ? rtnl_bridge_getlink+0x760/0x760 [ 83.922215] ? find_held_lock+0x36/0x1d0 [ 83.926286] netlink_rcv_skb+0x133/0x370 [ 83.930334] ? rtnl_bridge_getlink+0x760/0x760 [ 83.934906] ? netlink_ack+0xa00/0xa00 [ 83.938786] ? netlink_deliver_tap+0x8e/0x920 [ 83.943295] rtnetlink_rcv+0x10/0x20 [ 83.947005] netlink_unicast+0x40d/0x5f0 [ 83.951055] ? netlink_attachskb+0x6e0/0x6e0 [ 83.955445] netlink_sendmsg+0x730/0xbd0 [ 83.959486] ? netlink_unicast+0x5f0/0x5f0 [ 83.963880] ? selinux_socket_sendmsg+0x31/0x40 [ 83.968540] ? security_socket_sendmsg+0x6a/0xa0 [ 83.973283] ? netlink_unicast+0x5f0/0x5f0 [ 83.977499] sock_sendmsg+0xb5/0xf0 [ 83.981119] ___sys_sendmsg+0x625/0x920 [ 83.985093] ? trace_hardirqs_off+0x10/0x10 [ 83.989536] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 83.994348] ? find_held_lock+0x36/0x1d0 [ 83.998406] ? lock_downgrade+0x7f0/0x7f0 [ 84.002730] ? __fget+0x1ca/0x2f0 [ 84.006180] ? __fget_light+0x166/0x200 [ 84.010143] ? __fdget+0xe/0x10 [ 84.013440] ? sockfd_lookup_light+0x1c/0x150 [ 84.017929] __sys_sendmsg+0xc1/0x140 [ 84.021723] ? SyS_shutdown+0x180/0x180 [ 84.025845] ? __sb_end_write+0xa4/0xd0 [ 84.029818] ? mutex_unlock+0xd/0x10 [ 84.033526] ? do_syscall_64+0x4c/0x5b0 [ 84.037493] ? __sys_sendmsg+0x140/0x140 [ 84.041545] SyS_sendmsg+0xd/0x20 [ 84.044990] do_syscall_64+0x1c7/0x5b0 [ 84.048857] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 84.053695] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 84.058881] RIP: 0033:0x459ef9 [ 84.062056] RSP: 002b:00007f5fa9badc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 84.069764] RAX: ffffffffffffffda RBX: 00007f5fa9badc90 RCX: 0000000000459ef9 [ 84.077021] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 84.084455] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 84.091725] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5fa9bae6d4 [ 84.098991] R13: 00000000004c81fc R14: 00000000004de220 R15: 0000000000000006 [ 85.110849] ------------[ cut here ]------------ [ 85.115829] WARNING: CPU: 0 PID: 210 at net/batman-adv/bat_iv_ogm.c:555 batadv_iv_send_outstanding_bat_ogm_packet+0x5dc/0x770 [ 85.127284] Kernel panic - not syncing: panic_on_warn set ... [ 85.127284] [ 85.134638] CPU: 0 PID: 210 Comm: kworker/u4:3 Not tainted 4.14.173-syzkaller #0 [ 85.142274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.151637] Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet [ 85.158736] Call Trace: [ 85.161331] dump_stack+0xf7/0x13b [ 85.164873] ? batadv_iv_send_outstanding_bat_ogm_packet+0x5dc/0x770 [ 85.171888] panic+0x1b0/0x358 [ 85.175082] ? add_taint.cold.5+0x11/0x11 [ 85.179242] ? batadv_iv_send_outstanding_bat_ogm_packet+0x5dc/0x770 [ 85.185734] __warn.cold.8+0x25/0x2c [ 85.189460] ? batadv_iv_send_outstanding_bat_ogm_packet+0x5dc/0x770 [ 85.195957] report_bug+0x1a4/0x1f3 [ 85.199585] do_error_trap+0x1bd/0x310 [ 85.203468] ? math_error+0x300/0x300 [ 85.207252] ? find_held_lock+0x36/0x1d0 [ 85.211297] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 85.216124] do_invalid_op+0x1b/0x20 [ 85.219823] invalid_op+0x1b/0x40 [ 85.223257] RIP: 0010:batadv_iv_send_outstanding_bat_ogm_packet+0x5dc/0x770 [ 85.230686] RSP: 0018:ffff8880a94afce8 EFLAGS: 00010286 [ 85.236055] RAX: ffff888081d65a00 RBX: ffff888097952188 RCX: 1ffff1101524535d [ 85.243304] RDX: 0000000000000000 RSI: ffffffff87990f20 RDI: ffff8880a9229ae8 [ 85.250636] RBP: ffff8880a94afd60 R08: ffff8880a949cd08 R09: 00000000000063f2 [ 85.257904] R10: 0000000000000028 R11: ffff8880a949c440 R12: ffff888091a59200 [ 85.265213] R13: ffff888097952140 R14: ffff8880a9229a80 R15: ffff888097952228 [ 85.272534] process_one_work+0x79e/0x16c0 [ 85.276760] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 85.281431] worker_thread+0xcc/0xee0 [ 85.285219] kthread+0x338/0x400 [ 85.288566] ? process_one_work+0x16c0/0x16c0 [ 85.293039] ? kthread_create_on_node+0xa0/0xa0 [ 85.297780] ret_from_fork+0x24/0x30 [ 85.303269] Kernel Offset: disabled [ 85.306961] Rebooting in 86400 seconds..