==================================================================
BUG: KASAN: use-after-free in ieee80211_monitor_select_queue+0x210/0x214 net/mac80211/iface.c:941
Read of size 2 at addr ffff0000f9ac2dfb by task syz.0.742/7589

CPU: 0 PID: 7589 Comm: syz.0.742 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 print_address_description+0x88/0x218 mm/kasan/report.c:316
 print_report+0x50/0x68 mm/kasan/report.c:420
 kasan_report+0xa8/0xfc mm/kasan/report.c:524
 __asan_report_load2_noabort+0x2c/0x38 mm/kasan/report_generic.c:349
 ieee80211_monitor_select_queue+0x210/0x214 net/mac80211/iface.c:941
 netdev_core_pick_tx+0x130/0x320 net/core/dev.c:4245
 __dev_queue_xmit+0x730/0x3154 net/core/dev.c:4331
 dev_queue_xmit+0x24/0x34 include/linux/netdevice.h:3056
 packet_snd net/packet/af_packet.c:3163 [inline]
 packet_sendmsg+0x2de8/0x3d64 net/packet/af_packet.c:3194
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x588/0x90c net/socket.c:2519
 ___sys_sendmsg net/socket.c:2573 [inline]
 __sys_sendmsg+0x288/0x374 net/socket.c:2602
 __do_sys_sendmsg net/socket.c:2611 [inline]
 __se_sys_sendmsg net/socket.c:2609 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2609
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

The buggy address belongs to the physical page:
page:0000000053227435 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x139ac2
flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000000000 0000000000000000 fffffc0003e6b088 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000f9ac2c80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000f9ac2d00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff0000f9ac2d80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                                ^
 ffff0000f9ac2e00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000f9ac2e80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================