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CVE-2023-53294

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix null-ptr-deref on inode->i_op in ntfs_lookup() Syzbot reported a null-ptr-deref bug: ntfs3: loop0: Different NTF…

Published Sep 16, 2025CWE-476EPSS 0.15%

Overview

CVE-2023-53294 is a medium-severity vulnerability. It was published on September 16, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: Fix null-ptr-deref on inode->i_op in ntfs_lookup()

Syzbot reported a null-ptr-deref bug:

ntfs3: loop0: Different NTFS' sector size (1024) and media sector size

(512)

ntfs3: loop0: Mark volume as dirty due to NTFS errors

general protection fault, probably for non-canonical address

0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN

KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]

RIP: 0010:d_flags_for_inode fs/dcache.c:1980 [inline]

RIP: 0010:__d_add+0x5ce/0x800 fs/dcache.c:2796

Call Trace:

<TASK>

d_splice_alias+0x122/0x3b0 fs/dcache.c:3191

lookup_open fs/namei.c:3391 [inline]

open_last_lookups fs/namei.c:3481 [inline]

path_openat+0x10e6/0x2df0 fs/namei.c:3688

do_filp_open+0x264/0x4f0 fs/namei.c:3718

do_sys_openat2+0x124/0x4e0 fs/open.c:1310

do_sys_open fs/open.c:1326 [inline]

__do_sys_open fs/open.c:1334 [inline]

__se_sys_open fs/open.c:1330 [inline]

__x64_sys_open+0x221/0x270

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/254e69f284d7270e0abdc023ee53b71401c3ba0cRefgit.kernel.org/stable/c/2ba22cbc6a1cf4b58195adbee0b80262e53992d3Refgit.kernel.org/stable/c/d69d5e2a81df94534bdb468bcdd26060fcb7191aRefgit.kernel.org/stable/c/e78240bc4b94fc42854d65e657bb998100cc8e1bRefgit.kernel.org/stable/c/f8d9e062a695a3665c4635c4f216a75912687598

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53294?

CVE-2023-53294 is a medium-severity vulnerability. It was published on September 16, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53294?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-53294?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-53294?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53294 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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