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BUG: KASAN: use-after-free in crc_itu_t+0xd2/0xe0 lib/crc-itu-t.c:60
Read of size 1 at addr ffff888077e98000 by task syz-executor.1/18044

CPU: 1 PID: 18044 Comm: syz-executor.1 Not tainted 6.3.0-rc2-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:319
 print_report mm/kasan/report.c:430 [inline]
 kasan_report+0x11c/0x130 mm/kasan/report.c:536
 crc_itu_t+0xd2/0xe0 lib/crc-itu-t.c:60
 udf_finalize_lvid+0xe0/0x1d0 fs/udf/super.c:1988
 udf_sync_fs+0xea/0x150 fs/udf/super.c:2344
 sync_filesystem.part.0+0x75/0x1d0 fs/sync.c:56
 sync_filesystem+0x8f/0xc0 fs/sync.c:43
 generic_shutdown_super+0x74/0x480 fs/super.c:473
 kill_block_super+0x9b/0xf0 fs/super.c:1398
 deactivate_locked_super+0x98/0x160 fs/super.c:331
 deactivate_super+0xb1/0xd0 fs/super.c:362
 cleanup_mnt+0x2ae/0x3d0 fs/namespace.c:1177
 task_work_run+0x16f/0x270 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xad3/0x2a40 kernel/exit.c:869
 do_group_exit+0xd4/0x2a0 kernel/exit.c:1019
 get_signal+0x2315/0x25b0 kernel/signal.c:2859
 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296
 __do_fast_syscall_32+0x72/0xf0 arch/x86/entry/common.c:181
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
 entry_SYSENTER_compat_after_hwframe+0x70/0x82
RIP: 0023:0xf7f73579
Code: Unable to access opcode bytes at 0xf7f7354f.
RSP: 002b:00000000f7f6e4b0 EFLAGS: 00000286 ORIG_RAX: 0000000000000197
RAX: fffffffffffffdfc RBX: 0000000000000000 RCX: 0000000000000000
RDX: 00000000f7f6e52c RSI: 00000000f7f6e53c RDI: 00000000f7f6e52c
RBP: 00000000f7f6e53c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

The buggy address belongs to the physical page:
page:ffffea0001dfa600 refcount:0 mapcount:-128 mapping:0000000000000000 index:0x1 pfn:0x77e98
flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff00000000000 ffffea00019f2008 ffffea0001791808 0000000000000000
raw: 0000000000000001 0000000000000002 00000000ffffff7f 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 5155, tgid 5070 (syz-fuzzer), ts 856172764322, free_ts 1996646759791
 prep_new_page mm/page_alloc.c:2552 [inline]
 get_page_from_freelist+0x1190/0x2ec0 mm/page_alloc.c:4325
 __alloc_pages+0x1cb/0x530 mm/page_alloc.c:5591
 __folio_alloc+0x16/0x40 mm/page_alloc.c:5623
 vma_alloc_folio+0x155/0x880 mm/mempolicy.c:2244
 do_anonymous_page mm/memory.c:4052 [inline]
 handle_pte_fault mm/memory.c:4907 [inline]
 __handle_mm_fault+0x184b/0x3e60 mm/memory.c:5051
 handle_mm_fault+0x2ba/0x9c0 mm/memory.c:5197
 do_user_addr_fault+0x475/0x1230 arch/x86/mm/fault.c:1407
 handle_page_fault arch/x86/mm/fault.c:1498 [inline]
 exc_page_fault+0x98/0x170 arch/x86/mm/fault.c:1554
 asm_exc_page_fault+0x26/0x30 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:1453 [inline]
 free_pcp_prepare+0x612/0xae0 mm/page_alloc.c:1503
 free_unref_page_prepare mm/page_alloc.c:3387 [inline]
 free_unref_page_list+0x176/0xc60 mm/page_alloc.c:3528
 release_pages+0xcd7/0x1380 mm/swap.c:1042
 tlb_batch_pages_flush+0xa8/0x1a0 mm/mmu_gather.c:97
 tlb_flush_mmu_free mm/mmu_gather.c:292 [inline]
 tlb_flush_mmu mm/mmu_gather.c:299 [inline]
 tlb_finish_mmu+0x14b/0x7e0 mm/mmu_gather.c:391
 zap_page_range_single+0x347/0x4a0 mm/memory.c:1729
 madvise_dontneed_single_vma mm/madvise.c:803 [inline]
 madvise_dontneed_free mm/madvise.c:896 [inline]
 madvise_vma_behavior+0x1370/0x20c0 mm/madvise.c:1035
 madvise_walk_vmas+0x1c7/0x2b0 mm/madvise.c:1260
 do_madvise.part.0+0x24a/0x340 mm/madvise.c:1439
 do_madvise mm/madvise.c:1452 [inline]
 __do_sys_madvise mm/madvise.c:1452 [inline]
 __se_sys_madvise mm/madvise.c:1450 [inline]
 __x64_sys_madvise+0x117/0x150 mm/madvise.c:1450
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffff888077e97f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888077e97f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888077e98000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff888077e98080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888077e98100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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