REISERFS warning: green-16003 errcatch_is_left_mergeable: Invalid item type observed, run fsck ASAP
==================================================================
BUG: KASAN: slab-out-of-bounds in reiserfs_release_objectid+0x430/0x614 fs/reiserfs/objectid.c:165
Read of size 8188 at addr ffff0000ceaab050 by task syz.2.26/5386

CPU: 1 PID: 5386 Comm: syz.2.26 Not tainted 5.15.180-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Call trace:
 dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 print_address_description+0x78/0x30c mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0xec/0x15c mm/kasan/report.c:451
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x270/0x2b0 mm/kasan/generic.c:189
 memmove+0x90/0xe8 mm/kasan/shadow.c:54
 reiserfs_release_objectid+0x430/0x614 fs/reiserfs/objectid.c:165
 remove_save_link+0x21c/0x320 fs/reiserfs/super.c:542
 reiserfs_evict_inode+0x2fc/0x3e8 fs/reiserfs/inode.c:91
 evict+0x3c8/0x810 fs/inode.c:647
 iput_final fs/inode.c:1769 [inline]
 iput+0x6c4/0x77c fs/inode.c:1795
 dentry_unlink_inode+0x360/0x438 fs/dcache.c:380
 __dentry_kill+0x320/0x598 fs/dcache.c:586
 dentry_kill+0xc8/0x248 fs/dcache.c:-1
 dput+0x23c/0x458 fs/dcache.c:893
 ovl_check_rename_whiteout fs/overlayfs/super.c:1313 [inline]
 ovl_make_workdir fs/overlayfs/super.c:1411 [inline]
 ovl_get_workdir+0x6dc/0xe8c fs/overlayfs/super.c:1526
 ovl_fill_super+0x139c/0x2294 fs/overlayfs/super.c:2082
 mount_nodev+0x68/0x104 fs/super.c:1446
 ovl_mount+0x3c/0x50 fs/overlayfs/super.c:2173
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x228/0x810 fs/namespace.c:3012
 path_mount+0x5b4/0x1000 fs/namespace.c:3342
 do_mount fs/namespace.c:3355 [inline]
 __do_sys_mount fs/namespace.c:3563 [inline]
 __se_sys_mount fs/namespace.c:3540 [inline]
 __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3540
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

The buggy address belongs to the page:
page:00000000f5523539 refcount:2 mapcount:0 mapping:00000000b244fd93 index:0x10 pfn:0x10eaab
memcg:ffff0000c08a4000
aops:def_blk_aops ino:700002
flags: 0x5ffc00000022036(referenced|uptodate|lru|active|private|mappedtodisk|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000022036 fffffc0003be8948 fffffc0003226cc8 ffff0000c51e66c8
raw: 0000000000000010 ffff0000ddf0a3a0 00000002ffffffff ffff0000c08a4000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000ceaac000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000ceaac080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000ceaac100: 05 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff0000ceaac180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000ceaac200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
overlayfs: upper fs does not support RENAME_WHITEOUT.
overlayfs: failed to set xattr on upper
overlayfs: ...falling back to index=off,metacopy=off.