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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 ffff88809dc306d8 by task syz-executor.5/16093

CPU: 0 PID: 16093 Comm: syz-executor.5 Not tainted 6.1.72-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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
 get_signal+0x16f7/0x17d0 kernel/signal.c:2862
 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7c954a8135
Code: Unable to access opcode bytes at 0x7f7c954a810b.
RSP: 002b:00007f7c96234010 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: fffffffffffffdfc RBX: 00007f7c955abf80 RCX: 00007f7c954a8135
RDX: 00007f7c96234050 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f7c954c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000000b R14: 00007f7c955abf80 R15: 00007ffdc52e7aa8
 </TASK>

The buggy address belongs to the physical page:
page:ffffea0002770c00 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x9dc30
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea0002770c08 ffffea0002770c08 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:
 ffff88809dc30580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88809dc30600: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88809dc30680: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                    ^
 ffff88809dc30700: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88809dc30780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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