UDF-fs: warning (device loop0): udf_truncate_tail_extent: Too long extent after EOF in inode 818: i_size: 134220898 lbcount: 141077504 extent 0+14745600
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BUG: KASAN: use-after-free in crc_itu_t+0x1b1/0x290 lib/crc-itu-t.c:60
Read of size 1 at addr ffff8880595df000 by task syz.0.15/5837

CPU: 0 UID: 0 PID: 5837 Comm: syz.0.15 Not tainted 6.16.0-rc2-syzkaller-g5c8013ae2e86 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xd2/0x2b0 mm/kasan/report.c:521
 kasan_report+0x118/0x150 mm/kasan/report.c:634
 crc_itu_t+0x1b1/0x290 lib/crc-itu-t.c:60
 udf_update_tag+0x7a/0x6f0 fs/udf/misc.c:261
 udf_write_aext+0x4c3/0x7b0 fs/udf/inode.c:2180
 extent_trunc+0x2b4/0x450 fs/udf/truncate.c:46
 udf_truncate_tail_extent+0x410/0x5d0 fs/udf/truncate.c:106
 udf_release_file+0xc4/0x130 fs/udf/file.c:185
 __fput+0x44c/0xa70 fs/file_table.c:465
 task_work_run+0x1d1/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:114
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7eff8d57e719
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd37b6cd08 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007eff8d737a80 RCX: 00007eff8d57e719
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007eff8d737a80 R08: 0000000000000000 R09: 00007ffd37b6cfff
R10: 000000000003fd6c R11: 0000000000000246 R12: 0000000000023fa6
R13: 00007ffd37b6ce10 R14: 0000000000000032 R15: ffffffffffffffff
 </TASK>

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x7eff84202 pfn:0x595df
flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff00000000000 ffffea00010b2248 ffffea00010be5c8 0000000000000000
raw: 00000007eff84202 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_ZERO|__GFP_COMP), pid 5842, tgid 5837 (syz.0.15), ts 146957742299, free_ts 147081584612
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4959
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2419
 folio_alloc_mpol_noprof mm/mempolicy.c:2438 [inline]
 vma_alloc_folio_noprof+0xe4/0x200 mm/mempolicy.c:2473
 folio_prealloc+0x30/0x180 mm/memory.c:-1
 alloc_anon_folio mm/memory.c:5034 [inline]
 do_anonymous_page mm/memory.c:5091 [inline]
 do_pte_missing mm/memory.c:4249 [inline]
 handle_pte_fault mm/memory.c:6089 [inline]
 __handle_mm_fault+0x2c88/0x5620 mm/memory.c:6232
 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6401
 do_user_addr_fault+0xa81/0x1390 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
page last free pid 5842 tgid 5837 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 free_unref_folios+0xc66/0x14d0 mm/page_alloc.c:2763
 folios_put_refs+0x559/0x640 mm/swap.c:992
 free_pages_and_swap_cache+0x4be/0x520 mm/swap_state.c:267
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:397 [inline]
 tlb_flush_mmu+0x3a0/0x680 mm/mmu_gather.c:404
 tlb_finish_mmu+0xc3/0x1d0 mm/mmu_gather.c:497
 vms_clear_ptes+0x42c/0x540 mm/vma.c:1230
 vms_complete_munmap_vmas+0x206/0x8a0 mm/vma.c:1272
 do_vmi_align_munmap+0x358/0x420 mm/vma.c:1531
 do_vmi_munmap+0x253/0x2e0 mm/vma.c:1579
 __vm_munmap+0x23b/0x3d0 mm/vma.c:3108
 __do_sys_munmap mm/mmap.c:1084 [inline]
 __se_sys_munmap mm/mmap.c:1081 [inline]
 __x64_sys_munmap+0x60/0x70 mm/mmap.c:1081
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff8880595def00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880595def80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8880595df000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff8880595df080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8880595df100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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