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BUG: KASAN: slab-out-of-bounds in memmove include/linux/string.h:392 [inline]
BUG: KASAN: slab-out-of-bounds in reiserfs_release_objectid+0x47e/0x740 fs/reiserfs/objectid.c:165
Read of size 7172 at addr ffff8880a2ace0d0 by task syz-executor.5/17332

CPU: 0 PID: 17332 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256
 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354
 kasan_report+0x8f/0xa0 mm/kasan/report.c:412
 memmove+0x20/0x50 mm/kasan/kasan.c:293
 memmove include/linux/string.h:392 [inline]
 reiserfs_release_objectid+0x47e/0x740 fs/reiserfs/objectid.c:165
 remove_save_link+0x21c/0x3f0 fs/reiserfs/super.c:542
 reiserfs_evict_inode+0x489/0x540 fs/reiserfs/inode.c:91
 evict+0x2ed/0x760 fs/inode.c:559
 iput_final fs/inode.c:1555 [inline]
 iput+0x4f1/0x860 fs/inode.c:1581
 dentry_unlink_inode+0x265/0x320 fs/dcache.c:374
 d_delete+0x210/0x280 fs/dcache.c:2372
 vfs_rmdir.part.0+0x28a/0x3d0 fs/namei.c:3895
 vfs_rmdir fs/namei.c:3868 [inline]
 do_rmdir+0x3fd/0x490 fs/namei.c:3943
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fd6c7b6a0f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd6c60dc168 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007fd6c7c89f80 RCX: 00007fd6c7b6a0f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100
RBP: 00007fd6c7bc5ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe01e3ab9f R14: 00007fd6c60dc300 R15: 0000000000022000

The buggy address belongs to the page:
page:ffffea00028ab380 count:2 mapcount:0 mapping:ffff88808ffd5b60 index:0x10
flags: 0xfff0000001106c(referenced|uptodate|lru|active|private|mappedtodisk)
raw: 00fff0000001106c ffffea0002646588 ffffea0002c57ec8 ffff88808ffd5b60
raw: 0000000000000010 ffff8880a2ebf930 00000002ffffffff ffff8880b59f68c0
page dumped because: kasan: bad access detected
page->mem_cgroup:ffff8880b59f68c0

Memory state around the buggy address:
 ffff8880a2acef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880a2acef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8880a2acf000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff8880a2acf080: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
 ffff8880a2acf100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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