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BUG: KASAN: invalid-access in __linkwatch_run_queue+0x180/0x2b8 net/core/link_watch.c:244
Read at addr fdf0000015570a25 by task kworker/u8:2/40
Pointer tag: [fd], memory tag: [fe]

CPU: 0 UID: 0 PID: 40 Comm: kworker/u8:2 Not tainted 6.16.0-syzkaller-11699-g7e161a991ea7 #0 PREEMPT 
Hardware name: linux,dummy-virt (DT)
Workqueue: events_unbound linkwatch_event
Call trace:
 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x78/0x90 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x108/0x61c mm/kasan/report.c:482
 kasan_report+0x88/0xac mm/kasan/report.c:595
 report_tag_fault arch/arm64/mm/fault.c:326 [inline]
 do_tag_recovery arch/arm64/mm/fault.c:338 [inline]
 __do_kernel_fault+0x170/0x1c8 arch/arm64/mm/fault.c:380
 do_bad_area+0x68/0x78 arch/arm64/mm/fault.c:480
 do_tag_check_fault+0x34/0x44 arch/arm64/mm/fault.c:853
 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:929
 el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:481
 el1h_64_sync_handler+0x50/0xac arch/arm64/kernel/entry-common.c:597
 el1h_64_sync+0x6c/0x70 arch/arm64/kernel/entry.S:591
 __linkwatch_run_queue+0x180/0x2b8 net/core/link_watch.c:244 (P)
 linkwatch_event+0x30/0x40 net/core/link_watch.c:304
 process_one_work+0x178/0x2cc kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x250/0x358 kernel/workqueue.c:3400
 kthread+0x130/0x1fc kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x18 pfn:0x55570
flags: 0x1ffc80000000000(node=0|zone=0|lastcpupid=0x7ff|kasantag=0x2)
raw: 01ffc80000000000 ffffc1ffc0556908 fff000007f8f2040 0000000000000000
raw: 0000000000000018 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 fff0000015570800: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
 fff0000015570900: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
>fff0000015570a00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
                         ^
 fff0000015570b00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
 fff0000015570c00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
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