IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready Modules linked in: CPU: 0 PID: 9365 Comm: syz-executor.0 Not tainted 4.14.275-syzkaller #0 IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88809e786000 task.stack: ffff88809fb00000 RIP: 0010:dev_put include/linux/netdevice.h:3381 [inline] RIP: 0010:llc_ui_autobind.isra.0+0x26b/0x390 net/llc/af_llc.c:320 device veth0_macvtap entered promiscuous mode RSP: 0018:ffff88809fb07bf8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff88809eb8d200 RCX: ffffc90005cca000 RDX: 00000000000000a8 RSI: ffffffff85d0c563 RDI: 0000000000000540 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffea IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready R13: ffff88809fb07e28 R14: ffff88808e7c7ac0 R15: ffff88808e7c7ae0 FS: 00007fe9d1c6c700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff780dcb06c CR3: 000000008f6f5000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: llc_ui_sendmsg+0x638/0xec0 net/llc/af_llc.c:952 device veth1_macvtap entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 SYSC_sendto net/socket.c:1763 [inline] SyS_sendto+0x1c7/0x2c0 net/socket.c:1731 IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe9d32f70e9 RSP: 002b:00007fe9d1c6c168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe9d3409f60 RCX: 00007fe9d32f70e9 RDX: 0000000000000019 RSI: 0000000020000140 RDI: 0000000000000004 RBP: 00007fe9d335108d R08: 0000000020000180 R09: 0000000000000010 R10: 0000000000000040 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffebf521b9f R14: 00007fe9d1c6c300 R15: 0000000000022000 Code: 55 ff ff 48 0f ba 73 60 08 45 31 e4 31 ed e8 dd 7c 84 fb 48 8d bd 40 05 00 00 48 b8 00 00 00 00 IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f2 00 00 00 48 8b 85 40 05 00 00 65 ff 08 44 RIP: dev_put include/linux/netdevice.h:3381 [inline] RSP: ffff88809fb07bf8 RIP: llc_ui_autobind.isra.0+0x26b/0x390 net/llc/af_llc.c:320 RSP: ffff88809fb07bf8 ---[ end trace 4c22359ee00747c0 ]---