Linux Kernel NTFS3 slab OOB read in hdr_delete_de
CVE-2023-53988 Published on December 24, 2025
fs/ntfs3: Fix slab-out-of-bounds read in hdr_delete_de()
In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: Fix slab-out-of-bounds read in hdr_delete_de()
Here is a BUG report from syzbot:
BUG: KASAN: slab-out-of-bounds in hdr_delete_de+0xe0/0x150 fs/ntfs3/index.c:806
Read of size 16842960 at addr ffff888079cc0600 by task syz-executor934/3631
Call Trace:
memmove+0x25/0x60 mm/kasan/shadow.c:54
hdr_delete_de+0xe0/0x150 fs/ntfs3/index.c:806
indx_delete_entry+0x74f/0x3670 fs/ntfs3/index.c:2193
ni_remove_name+0x27a/0x980 fs/ntfs3/frecord.c:2910
ntfs_unlink_inode+0x3d4/0x720 fs/ntfs3/inode.c:1712
ntfs_rename+0x41a/0xcb0 fs/ntfs3/namei.c:276
Before using the meta-data in struct INDEX_HDR, we need to
check index header valid or not. Otherwise, the corruptedi
(or malicious) fs image can cause out-of-bounds access which
could make kernel panic.
Products Associated with CVE-2023-53988
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Affected Versions
Linux:- Version 82cae269cfa953032fbb8980a7d554d60fb00b17 and below c58ea97aa94f033ee64a8cb6587d84a9849b6216 is affected.
- Version 82cae269cfa953032fbb8980a7d554d60fb00b17 and below 9163a5b4ed290da4a7d23fa92533e0e81fd0166e is affected.
- Version 82cae269cfa953032fbb8980a7d554d60fb00b17 and below 114204d25e1dffdd3a0c1cfbba219afd344f4b4f is affected.
- Version 82cae269cfa953032fbb8980a7d554d60fb00b17 and below 4a034ece7e2877673d9085d6e7ed45e6ee40b761 is affected.
- Version 82cae269cfa953032fbb8980a7d554d60fb00b17 and below ab84eee4c7ab929996602eda7832854c35a6dda2 is affected.
- Version 5.15 is affected.
- Before 5.15 is unaffected.
- Version 5.15.111, <= 5.15.* is unaffected.
- Version 6.1.28, <= 6.1.* is unaffected.
- Version 6.2.15, <= 6.2.* is unaffected.
- Version 6.3.2, <= 6.3.* is unaffected.
- Version 6.4, <= * is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.