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BUG: KASAN: slab-out-of-bounds in ieee80211_add_virtual_monitor+0xa24/0xe1c net/mac80211/iface.c:1255
Read of size 1 at addr ffff0000cad6fd90 by task syz.2.150/7406

CPU: 0 UID: 0 PID: 7406 Comm: syz.2.150 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 print_address_description+0xa8/0x238 mm/kasan/report.c:378
 print_report+0x68/0x84 mm/kasan/report.c:482
 kasan_report+0xb0/0x110 mm/kasan/report.c:595
 __asan_report_load1_noabort+0x20/0x2c mm/kasan/report_generic.c:378
 ieee80211_add_virtual_monitor+0xa24/0xe1c net/mac80211/iface.c:1255
 ieee80211_do_stop+0x13a4/0x1a84 net/mac80211/iface.c:746
 ieee80211_stop+0x1ac/0x220 net/mac80211/iface.c:828
 __dev_close_many+0x3a8/0x704 net/core/dev.c:1756
 __dev_close net/core/dev.c:1768 [inline]
 __dev_change_flags+0x3d0/0x54c net/core/dev.c:9732
 netif_change_flags+0x80/0x15c net/core/dev.c:9797
 dev_change_flags+0x10c/0x204 net/core/dev_api.c:68
 dev_ifsioc+0xd8/0xb90 net/core/dev_ioctl.c:583
 dev_ioctl+0x4b0/0xc74 net/core/dev_ioctl.c:842
 sock_do_ioctl+0x200/0x2b4 net/socket.c:1268
 sock_ioctl+0x57c/0x84c net/socket.c:1375
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:583
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10ad6c
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff0000cce63782
flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff)
page_type: f8(unknown)
raw: 05ffc00000000040 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000000f8000000 ffff0000cce63782
head: 05ffc00000000040 0000000000000000 dead000000000122 0000000000000000
head: 0000000000000000 0000000000000000 00000000f8000000 ffff0000cce63782
head: 05ffc00000000002 fffffdffc32b5b01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000cad6fc80: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
 ffff0000cad6fd00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
>ffff0000cad6fd80: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
                         ^
 ffff0000cad6fe00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
 ffff0000cad6fe80: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
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netlink: 'syz.2.150': attribute type 10 has an invalid length.