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BUG: KASAN: use-after-free in udf_close_lvid+0x6a4/0x9a0 fs/udf/super.c:2073
Write of size 1 at addr ffff888160f76dc0 by task syz-executor.3/9295

CPU: 0 PID: 9295 Comm: syz-executor.3 Not tainted 6.1.85-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x15f/0x4f0 mm/kasan/report.c:395
 kasan_report+0x136/0x160 mm/kasan/report.c:495
 udf_close_lvid+0x6a4/0x9a0 fs/udf/super.c:2073
 udf_put_super+0xc9/0x160 fs/udf/super.c:2360
 generic_shutdown_super+0x130/0x340 fs/super.c:501
 kill_block_super+0x7a/0xe0 fs/super.c:1459
 deactivate_locked_super+0xa0/0x110 fs/super.c:332
 cleanup_mnt+0x490/0x520 fs/namespace.c:1186
 task_work_run+0x246/0x300 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xa73/0x26a0 kernel/exit.c:869
 do_group_exit+0x202/0x2b0 kernel/exit.c:1019
 __do_sys_exit_group kernel/exit.c:1030 [inline]
 __se_sys_exit_group kernel/exit.c:1028 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1028
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f2dd4c7de69
Code: Unable to access opcode bytes at 0x7f2dd4c7de3f.
RSP: 002b:00007fffa3f6da58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f2dd4cc942b RCX: 00007f2dd4c7de69
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000010 R08: 00007fffa3f6b7f6 R09: 00007fffa3f6ed10
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffa3f6ed10
R13: 00007f2dd4cc93b9 R14: 0000555556d66430 R15: 0000000000000009
 </TASK>

The buggy address belongs to the physical page:
page:ffffea000583dd80 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x160f76
flags: 0x57ff80000000000(node=1|zone=2|lastcpupid=0xfff)
raw: 057ff80000000000 ffffea000583dd88 ffffea000583dd88 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)

Memory state around the buggy address:
 ffff888160f76c80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888160f76d00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff888160f76d80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                           ^
 ffff888160f76e00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888160f76e80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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