loop0: detected capacity change from 0 to 32768
=======================================================
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
(syz.0.0,5323,0):ocfs2_check_dir_entry:325 ERROR: bad entry in directory #65: rec_len % 4 != 0 - offset=312, inode=13845347915746889, rec_len=25793, name_len=214
netlink: 'syz.0.0': attribute type 4 has an invalid length.
netlink: 17 bytes leftover after parsing attributes in process `syz.0.0'.
(syz.0.0,5323,0):ocfs2_find_entry:1086 ERROR: status = -117
(syz.0.0,5323,0):ocfs2_find_entry:1086 ERROR: status = -117
(syz.0.0,5323,0):ocfs2_mknod:502 ERROR: status = -117
(syz.0.0,5323,0):ocfs2_create:675 ERROR: status = -117
==================================================================
BUG: KASAN: use-after-free in ocfs2_check_dir_entry fs/ocfs2/dir.c:305 [inline]
BUG: KASAN: use-after-free in ocfs2_dir_foreach_blk_id fs/ocfs2/dir.c:1797 [inline]
BUG: KASAN: use-after-free in ocfs2_dir_foreach_blk+0x1501/0x18a0 fs/ocfs2/dir.c:1925
Read of size 2 at addr ffff8880537008c9 by task syz.0.0/5323

CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted 6.15.0-syzkaller-08297-ge0797d3b91de #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
 ocfs2_check_dir_entry fs/ocfs2/dir.c:305 [inline]
 ocfs2_dir_foreach_blk_id fs/ocfs2/dir.c:1797 [inline]
 ocfs2_dir_foreach_blk+0x1501/0x18a0 fs/ocfs2/dir.c:1925
 ocfs2_readdir+0x254/0x4c0 fs/ocfs2/dir.c:1969
 wrap_directory_iterator+0x96/0xe0 fs/readdir.c:65
 iterate_dir+0x5af/0x770 fs/readdir.c:108
 __do_sys_getdents fs/readdir.c:326 [inline]
 __se_sys_getdents+0xe4/0x250 fs/readdir.c:312
 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
RIP: 0033:0x7fcf83f8e969
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:00007fcf84d83038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007fcf841b5fa0 RCX: 00007fcf83f8e969
RDX: 0000000000000058 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00007fcf84010ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcf841b5fa0 R15: 00007ffe7ef196c8
 </TASK>

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x7f66cebe6 pfn:0x53700
flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff00000000000 ffffea00014dc048 ffffea00014db7c8 0000000000000000
raw: 00000007f66cebe6 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 5299, tgid 5299 (udevd), ts 84794193631, free_ts 84827534719
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1710
 prep_new_page mm/page_alloc.c:1718 [inline]
 get_page_from_freelist+0x21e0/0x22c0 mm/page_alloc.c:3680
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4970
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2301
 folio_alloc_mpol_noprof mm/mempolicy.c:2320 [inline]
 vma_alloc_folio_noprof+0xe4/0x200 mm/mempolicy.c:2355
 folio_prealloc+0x30/0x180 mm/memory.c:-1
 alloc_anon_folio mm/memory.c:4943 [inline]
 do_anonymous_page mm/memory.c:5000 [inline]
 do_pte_missing mm/memory.c:4158 [inline]
 handle_pte_fault mm/memory.c:5997 [inline]
 __handle_mm_fault+0x2c6a/0x55e0 mm/memory.c:6140
 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6309
 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1387
 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 5299 tgid 5299 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1254 [inline]
 free_unref_folios+0xcc9/0x1550 mm/page_alloc.c:2774
 folios_put_refs+0x559/0x640 mm/swap.c:992
 free_pages_and_swap_cache+0x4be/0x520 mm/swap_state.c:269
 __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:496
 vms_clear_ptes+0x42c/0x540 mm/vma.c:1191
 vms_complete_munmap_vmas+0x206/0x8a0 mm/vma.c:1233
 do_vmi_align_munmap+0x358/0x420 mm/vma.c:1492
 do_vmi_munmap+0x253/0x2e0 mm/vma.c:1540
 __vm_munmap+0x23b/0x3d0 mm/vma.c:3014
 __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:
 ffff888053700780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888053700800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff888053700880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                              ^
 ffff888053700900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888053700980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================