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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 ffff888052933000 by task syz-executor.5/28463

CPU: 1 PID: 28463 Comm: syz-executor.5 Not tainted 6.1.53-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
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+0x6fb/0x2300 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:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f39740a7ef5
Code: Unable to access opcode bytes at 0x7f39740a7ecb.
RSP: 002b:00007f3974da9010 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: fffffffffffffdfc RBX: 00007f397419bf80 RCX: 00007f39740a7ef5
RDX: 00007f3974da9050 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f39740c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000000b R14: 00007f397419bf80 R15: 00007ffdcc651c58
 </TASK>

The buggy address belongs to the physical page:
page:ffffea00014a4cc0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x52933
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea0000e1fb48 ffffea000163c2c8 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 0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_ZERO), pid 1760, tgid 1747 (syz-executor.2), ts 2434384566127, free_ts 2436995772059
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2533
 prep_new_page mm/page_alloc.c:2540 [inline]
 get_page_from_freelist+0x32ed/0x3480 mm/page_alloc.c:4292
 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5559
 __folio_alloc+0xf/0x30 mm/page_alloc.c:5591
 vma_alloc_folio+0x486/0x990 mm/mempolicy.c:2241
 alloc_page_vma include/linux/gfp.h:284 [inline]
 wp_page_copy+0x264/0x17d0 mm/memory.c:3119
 handle_pte_fault mm/memory.c:5001 [inline]
 __handle_mm_fault mm/memory.c:5125 [inline]
 handle_mm_fault+0x2522/0x5330 mm/memory.c:5246
 do_user_addr_fault arch/x86/mm/fault.c:1380 [inline]
 handle_page_fault arch/x86/mm/fault.c:1471 [inline]
 exc_page_fault+0x26f/0x660 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1460 [inline]
 free_pcp_prepare mm/page_alloc.c:1510 [inline]
 free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3388
 free_unref_page_list+0x107/0x810 mm/page_alloc.c:3530
 release_pages+0x2836/0x2b40 mm/swap.c:1055
 tlb_batch_pages_flush mm/mmu_gather.c:59 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:254 [inline]
 tlb_flush_mmu+0xfc/0x210 mm/mmu_gather.c:261
 zap_pte_range mm/memory.c:1515 [inline]
 zap_pmd_range mm/memory.c:1564 [inline]
 zap_pud_range mm/memory.c:1593 [inline]
 zap_p4d_range mm/memory.c:1614 [inline]
 unmap_page_range+0x217c/0x2740 mm/memory.c:1635
 unmap_vmas+0x3c4/0x560 mm/memory.c:1720
 exit_mmap+0x252/0x9f0 mm/mmap.c:3214
 __mmput+0x115/0x3c0 kernel/fork.c:1191
 exit_mm+0x226/0x300 kernel/exit.c:563
 do_exit+0x67e/0x2300 kernel/exit.c:856
 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

Memory state around the buggy address:
 ffff888052932f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888052932f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888052933000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff888052933080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888052933100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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