loop0: detected capacity change from 0 to 2048
UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
==================================================================
BUG: KASAN: use-after-free in udf_close_lvid+0x508/0x5c0 fs/udf/super.c:2035
Write of size 1 at addr ffff8880a9830980 by task syz-executor129/5033

CPU: 0 PID: 5033 Comm: syz-executor129 Not tainted 6.5.0-rc3-next-20230728-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0xc4/0x620 mm/kasan/report.c:475
 kasan_report+0xda/0x110 mm/kasan/report.c:588
 udf_close_lvid+0x508/0x5c0 fs/udf/super.c:2035
 udf_put_super+0x19c/0x200 fs/udf/super.c:2322
 generic_shutdown_super+0x158/0x480 fs/super.c:499
 kill_block_super+0x3b/0xc0 fs/super.c:1416
 deactivate_locked_super+0x9a/0x170 fs/super.c:330
 deactivate_super+0xde/0x100 fs/super.c:361
 cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254
 task_work_run+0x14d/0x240 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xa99/0x2a20 kernel/exit.c:876
 do_group_exit+0xd4/0x2a0 kernel/exit.c:1026
 __do_sys_exit_group kernel/exit.c:1037 [inline]
 __se_sys_exit_group kernel/exit.c:1035 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1035
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f19eec2b989
Code: Unable to access opcode bytes at 0x7f19eec2b95f.
RSP: 002b:00007ffdddc55be8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f19eec2b989
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f19eecc62d0 R08: ffffffffffffffb8 R09: 0000000000000000
R10: 0000000000000022 R11: 0000000000000246 R12: 00007f19eecc62d0
R13: 0000000000000000 R14: 00007f19eecc7040 R15: 00007f19eebf9eb0
 </TASK>

The buggy address belongs to the physical page:
page:ffffea0002a60c00 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xa9830
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000000 ffffea0002a60c08 ffffea0002a60c08 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:
 ffff8880a9830880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8880a9830900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8880a9830980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff8880a9830a00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8880a9830a80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================