veth0_macvtap: left promiscuous mode
veth1_vlan: left promiscuous mode
veth0_vlan: left promiscuous mode
==================================================================
BUG: KASAN: global-out-of-bounds in ref_tracker_free+0x562/0x830 lib/ref_tracker.c:244
Read of size 1 at addr ffffffff9af85bf0 by task kworker/u32:4/72

CPU: 1 UID: 0 PID: 72 Comm: kworker/u32:4 Not tainted 6.15.0-rc7-syzkaller-00175-g0f8c0258bf04 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xc3/0x670 mm/kasan/report.c:521
 kasan_report+0xe0/0x110 mm/kasan/report.c:634
 ref_tracker_free+0x562/0x830 lib/ref_tracker.c:244
 netdev_tracker_free include/linux/netdevice.h:4351 [inline]
 netdev_put include/linux/netdevice.h:4368 [inline]
 netdev_put include/linux/netdevice.h:4364 [inline]
 in_dev_finish_destroy+0xae/0x1d0 net/ipv4/devinet.c:258
 in_dev_put include/linux/inetdevice.h:290 [inline]
 inetdev_destroy net/ipv4/devinet.c:338 [inline]
 inetdev_event+0xf8b/0x18a0 net/ipv4/devinet.c:1656
 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2176
 call_netdevice_notifiers_extack net/core/dev.c:2214 [inline]
 call_netdevice_notifiers net/core/dev.c:2228 [inline]
 unregister_netdevice_many_notify+0xf9a/0x26f0 net/core/dev.c:11972
 unregister_netdevice_many net/core/dev.c:12036 [inline]
 default_device_exit_batch+0x853/0xaf0 net/core/dev.c:12530
 ops_exit_list+0x12b/0x180 net/core/net_namespace.c:177
 cleanup_net+0x5c1/0xb30 net/core/net_namespace.c:654
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

The buggy address belongs to the variable:
 binder_devices+0x10/0x40

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1af85
flags: 0xfff00000002000(reserved|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002000 ffffea00006be148 ffffea00006be148 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)

Memory state around the buggy address:
 ffffffff9af85a80: f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
 ffffffff9af85b00: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
>ffffffff9af85b80: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
                                                             ^
 ffffffff9af85c00: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 00 f9 f9
 ffffffff9af85c80: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
==================================================================