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BUG: KASAN: use-after-free in crc_itu_t+0x1d1/0x2a0 lib/crc-itu-t.c:60
Read of size 1 at addr ffff888046e0a000 by task syz-executor.3/6200

CPU: 1 PID: 6200 Comm: syz-executor.3 Not tainted 6.1.62-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
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
 crc_itu_t+0x1d1/0x2a0 lib/crc-itu-t.c:60
 udf_finalize_lvid fs/udf/super.c:2022 [inline]
 udf_close_lvid+0x57a/0x9a0 fs/udf/super.c:2090
 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
 ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:299
RIP: 0033:0x7fcd7867cae9
Code: Unable to access opcode bytes at 0x7fcd7867cabf.
RSP: 002b:00007fcd7936a078 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00007fcd7879c050 RCX: 00007fcd7867cae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fcd786c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fcd7879c050 R15: 00007ffcbddcc4a8
 </TASK>

The buggy address belongs to the physical page:
page:ffffea00011b8280 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x46e0a
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea00011ee948 ffffea0000fc8888 0000000000000000
raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Movable, gfp_mask 0x152c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE), pid 6190, tgid 6186 (syz-executor.3), ts 342396891933, free_ts 1919556634083
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2513
 prep_new_page mm/page_alloc.c:2520 [inline]
 get_page_from_freelist+0x31a1/0x3320 mm/page_alloc.c:4279
 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5545
 folio_alloc+0x1a/0x50 mm/mempolicy.c:2292
 filemap_alloc_folio+0xda/0x4f0 mm/filemap.c:971
 page_cache_ra_unbounded+0x1ee/0x7b0 mm/readahead.c:248
 do_async_mmap_readahead mm/filemap.c:3072 [inline]
 filemap_fault+0x797/0x17e0 mm/filemap.c:3126
 __do_fault+0x136/0x4f0 mm/memory.c:4241
 do_read_fault mm/memory.c:4592 [inline]
 do_fault mm/memory.c:4721 [inline]
 handle_pte_fault mm/memory.c:4993 [inline]
 __handle_mm_fault mm/memory.c:5135 [inline]
 handle_mm_fault+0x3412/0x5340 mm/memory.c:5256
 faultin_page mm/gup.c:1009 [inline]
 __get_user_pages+0x4f3/0x1190 mm/gup.c:1233
 populate_vma_page_range+0x217/0x2b0 mm/gup.c:1590
 __mm_populate+0x275/0x440 mm/gup.c:1704
 mm_populate include/linux/mm.h:2797 [inline]
 vm_mmap_pgoff+0x22b/0x2d0 mm/util.c:525
 ksys_mmap_pgoff+0x4f5/0x6d0 mm/mmap.c:1471
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1440 [inline]
 free_pcp_prepare mm/page_alloc.c:1490 [inline]
 free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3358
 free_unref_page_list+0x663/0x900 mm/page_alloc.c:3499
 release_pages+0x2836/0x2b40 mm/swap.c:1055
 __pagevec_release+0x80/0xf0 mm/swap.c:1075
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 truncate_inode_pages_range+0x48a/0x1340 mm/truncate.c:373
 udf_evict_inode+0x21f/0x3d0 fs/udf/inode.c:157
 evict+0x2a4/0x620 fs/inode.c:664
 dispose_list fs/inode.c:697 [inline]
 evict_inodes+0x601/0x6a0 fs/inode.c:747
 generic_shutdown_super+0x94/0x340 fs/super.c:480
 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

Memory state around the buggy address:
 ffff888046e09f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888046e09f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888046e0a000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff888046e0a080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888046e0a100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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