==================================================================
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:1799 [inline]
BUG: KASAN: use-after-free in ocfs2_dir_foreach_blk+0x1350/0x1670 fs/ocfs2/dir.c:1927
Read of size 2 at addr ffff0000fbf51980 by task syz.1.72/4722

CPU: 1 PID: 4722 Comm: syz.1.72 Not tainted 6.1.137-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 print_address_description+0x88/0x220 mm/kasan/report.c:316
 print_report+0x50/0x68 mm/kasan/report.c:427
 kasan_report+0xa8/0x100 mm/kasan/report.c:531
 __asan_report_load_n_noabort+0x28/0x34 mm/kasan/report_generic.c:361
 ocfs2_check_dir_entry fs/ocfs2/dir.c:305 [inline]
 ocfs2_dir_foreach_blk_id fs/ocfs2/dir.c:1799 [inline]
 ocfs2_dir_foreach_blk+0x1350/0x1670 fs/ocfs2/dir.c:1927
 ocfs2_readdir+0x22c/0x558 fs/ocfs2/dir.c:1970
 iterate_dir+0x1f0/0x4cc fs/readdir.c:-1
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64 fs/readdir.c:354 [inline]
 __arm64_sys_getdents64+0x11c/0x318 fs/readdir.c:354
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

The buggy address belongs to the physical page:
page:00000000f692e8bf refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x13bf51
flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000000000 fffffc0003efd488 fffffc0003efd408 0000000000000000
raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000fbf51880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000fbf51900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff0000fbf51980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff0000fbf51a00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff0000fbf51a80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
(syz.1.72,4722,1):ocfs2_check_dir_entry:325 ERROR: bad entry in directory #17: rec_len is smaller than minimal - offset=54960, inode=0, rec_len=0, name_len=0