IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready kasan: CONFIG_KASAN_INLINE enabled IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready kasan: GPF could be caused by NULL-ptr deref or user memory access team0: Port device team_slave_1 added general protection fault: 0000 [#1] PREEMPT SMP KASAN IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready Modules linked in: kobject: 'bonding_slave' (ffff88808e7edcd8): kobject_add_internal: parent: 'bond_slave_0', set: '' CPU: 1 PID: 6856 Comm: syz-executor.1 Not tainted 4.14.145 #0 bond0: Enslaving bond_slave_0 as an active interface with an up link Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888063cd0700 task.stack: ffff888063cd8000 RIP: 0010:tcp_sendmsg_locked+0x50e/0x3200 net/ipv4/tcp.c:1281 RSP: 0018:ffff888063cdf9b0 EFLAGS: 00010206 RAX: 0000000000000012 RBX: 0000000000000000 RCX: ffffc9000784a000 IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RDX: 00000000000000fe RSI: ffffffff85240e44 RDI: 0000000000000090 RBP: ffff888063cdfb48 R08: 0000000000000001 R09: ffff888063cd0fa0 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff888098790c80 R14: ffff888063cdfc28 R15: ffff8880661cc000 FS: 00007f4b45986700(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 8021q: adding VLAN 0 to HW filter on device bond0 CR2: 0000000000d93ad0 CR3: 00000000a9903000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1457 inet_sendmsg+0x122/0x500 net/ipv4/af_inet.c:762 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 sock_write_iter+0x21d/0x390 net/socket.c:925 IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready 8021q: adding VLAN 0 to HW filter on device team0 IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready call_write_iter include/linux/fs.h:1777 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x4a7/0x6b0 fs/read_write.c:482 vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xfd/0x230 fs/read_write.c:582 IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready RIP: 0033:0x459a09 IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready RSP: 002b:00007f4b45985c78 EFLAGS: 00000246 IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready ORIG_RAX: 0000000000000001 IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459a09 hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network RDX: 00000000ffffff7b RSI: 0000000020000140 RDI: 0000000000000003 hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4b459866d4 IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready R13: 00000000004c9465 R14: 00000000004e0940 R15: 00000000ffffffff 8021q: adding VLAN 0 to HW filter on device batadv0 Code: kobject: 'vlan0' (ffff888082c68800): kobject_add_internal: parent: 'mesh', set: '' d4 38 fc 4d 85 ed 0f 84 40 08 00 00 e8 ac d4 38 fc 8b 85 78 ff ff ff 48 8d bb 90 00 00 00 89 85 50 ff ff ff 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 06 0f 8e 4a 25 00 00 f6 83 90 00 00 00 RIP: tcp_sendmsg_locked+0x50e/0x3200 net/ipv4/tcp.c:1281 RSP: ffff888063cdf9b0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 ---[ end trace 395261f663adb071 ]---