IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
sp0: Synchronizing with TNC
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
sp0: Found TNC
------------[ cut here ]------------
kernel BUG at kernel/time/timer.c:1090!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 9484 Comm: syz-executor.1 Not tainted 4.14.205-syzkaller #0
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
task: ffff8880580e0080 task.stack: ffff888058300000
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
RIP: 0010:add_timer kernel/time/timer.c:1090 [inline]
RIP: 0010:add_timer+0x5d/0x70 kernel/time/timer.c:1088
RSP: 0018:ffff888058307bd8 EFLAGS: 00010212
RAX: 0000000000040000 RBX: ffff8880582e1080 RCX: ffffc900078f8000
RDX: 000000000001fdf2 RSI: ffffffff814a88ed RDI: ffff8880582e12c8
RBP: ffff8880582e12c0 R08: ffffffff8bfab108 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: 00000000ffffc2c7 R14: ffff8880582e12c0 R15: 0000000000000028
FS:  00007fcb2a32e700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d5577d0d60 CR3: 000000009cad3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
Call Trace:
 decode_prio_command drivers/net/hamradio/6pack.c:934 [inline]
 sixpack_decode drivers/net/hamradio/6pack.c:1003 [inline]
 sixpack_receive_buf drivers/net/hamradio/6pack.c:458 [inline]
 sixpack_receive_buf+0xcbf/0x11a0 drivers/net/hamradio/6pack.c:435
 tiocsti drivers/tty/tty_io.c:2186 [inline]
 tty_ioctl+0xe5a/0x13c0 drivers/tty/tty_io.c:2572
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45deb9
RSP: 002b:00007fcb2a32dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000019c80 RCX: 000000000045deb9
RDX: 0000000020000000 RSI: 0000000000005412 RDI: 0000000000000003
RBP: 000000000118c008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfd4
R13: 00007ffdc152b46f R14: 00007fcb2a32e9c0 R15: 000000000118bfd4
Code: 7d 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 1b 48 8b 75 10 48 89 ef 5d e9 38 f0 ff ff e8 03 b6 0c 00 <0f> 0b e8 4c 86 36 00 eb be e8 45 86 36 00 eb de 0f 1f 00 41 57 
RIP: add_timer kernel/time/timer.c:1090 [inline] RSP: ffff888058307bd8
RIP: add_timer+0x5d/0x70 kernel/time/timer.c:1088 RSP: ffff888058307bd8
---[ end trace 132b313f5b93d35f ]---
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1