IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
------------[ cut here ]------------
IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90 syzkaller/managers/linux-4-19/kernel/kernel/workqueue.c:4950
WARNING: CPU: 1 PID: 5326 at lib/debugobjects.c:325 debug_print_object+0x160/0x250 syzkaller/managers/linux-4-19/kernel/lib/debugobjects.c:325
device veth0_vlan entered promiscuous mode
Kernel panic - not syncing: panic_on_warn set ...

device veth1_vlan entered promiscuous mode
CPU: 1 PID: 5326 Comm: kworker/u4:5 Not tainted 4.19.172-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready
Call Trace:
 __dump_stack syzkaller/managers/linux-4-19/kernel/lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef syzkaller/managers/linux-4-19/kernel/lib/dump_stack.c:118
 panic+0x26a/0x50e syzkaller/managers/linux-4-19/kernel/kernel/panic.c:186
 __warn.cold+0x20/0x5a syzkaller/managers/linux-4-19/kernel/kernel/panic.c:541
 report_bug+0x262/0x2b0 syzkaller/managers/linux-4-19/kernel/lib/bug.c:186
 fixup_bug syzkaller/managers/linux-4-19/kernel/arch/x86/kernel/traps.c:178 [inline]
 fixup_bug syzkaller/managers/linux-4-19/kernel/arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 syzkaller/managers/linux-4-19/kernel/arch/x86/kernel/traps.c:296
IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready
IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready
IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready
device veth0_macvtap entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready
 invalid_op+0x14/0x20 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/entry_64.S:1038
device veth1_macvtap entered promiscuous mode
RIP: 0010:debug_print_object+0x160/0x250 syzkaller/managers/linux-4-19/kernel/lib/debugobjects.c:325
Code: dd c0 cd b3 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd c0 cd b3 88 48 c7 c7 e0 c1 b3 88 e8 e5 04 7a 04 <0f> 0b 83 05 13 4e b1 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89
RSP: 0018:ffff8880919b78a8 EFLAGS: 00010086
IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready
RDX: 0000000000000000 RSI: ffffffff814de0d1 RDI: ffffed1012336f07
IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
R10: 0000000000000005 R11: ffffffff8c65d05b R12: ffffffff89f90880
R13: ffffffff8152f1f0 R14: ffff888082a9a2a0 R15: dffffc0000000000
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
 __debug_check_no_obj_freed syzkaller/managers/linux-4-19/kernel/lib/debugobjects.c:785 [inline]
 debug_check_no_obj_freed+0x271/0x490 syzkaller/managers/linux-4-19/kernel/lib/debugobjects.c:817
 kfree+0xb9/0x210 syzkaller/managers/linux-4-19/kernel/mm/slab.c:3821
 kvfree+0x59/0x60 syzkaller/managers/linux-4-19/kernel/mm/util.c:452
 device_release+0x76/0x210 syzkaller/managers/linux-4-19/kernel/drivers/base/core.c:1076
 kobject_cleanup syzkaller/managers/linux-4-19/kernel/lib/kobject.c:662 [inline]
 kobject_release syzkaller/managers/linux-4-19/kernel/lib/kobject.c:691 [inline]
 kref_put syzkaller/managers/linux-4-19/kernel/./include/linux/kref.h:70 [inline]
 kobject_put+0x28b/0x5d0 syzkaller/managers/linux-4-19/kernel/lib/kobject.c:708
 netdev_run_todo+0x77f/0xab0 syzkaller/managers/linux-4-19/kernel/net/core/dev.c:9003
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
 default_device_exit_batch+0x304/0x3c0 syzkaller/managers/linux-4-19/kernel/net/core/dev.c:9788
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
 ops_exit_list+0xf9/0x150 syzkaller/managers/linux-4-19/kernel/net/core/net_namespace.c:156
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
 cleanup_net+0x3b4/0x8b0 syzkaller/managers/linux-4-19/kernel/net/core/net_namespace.c:553
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
 process_one_work+0x864/0x1570 syzkaller/managers/linux-4-19/kernel/kernel/workqueue.c:2155
IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready
 worker_thread+0x64c/0x1130 syzkaller/managers/linux-4-19/kernel/kernel/workqueue.c:2298
batman_adv: batadv0: Interface activated: batadv_slave_0
 kthread+0x33f/0x460 syzkaller/managers/linux-4-19/kernel/kernel/kthread.c:259
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/entry_64.S:415
Kernel Offset: disabled
Rebooting in 86400 seconds..