CVE-2023-54272

Kernel crash via unchecked NTFS3 record pointer

Published Dec 30, 2025 · Updated Dec 30, 2025

Null-pointer dereference in affected Linux kernel 5.15, 6.1, and 6.3 branches allows attackers to crash the kernel during NTFS3 inode eviction. In fs/ntfs3/frecord.c, ni_clear() passes ni->mi.mrec to is_rec_inuse() without checking whether the record pointer is NULL. Reaching the flaw requires the NTFS3 inode-eviction call path; the public record does not identify a crafted input or privilege boundary.

CVSS severityUnavailable
Unscored
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null-pointer dereference in affected Linux kernel 5.15, 6.1, and 6.3 branches allows attackers to crash the kernel during NTFS3 inode eviction. In fs/ntfs3/frecord.c, ni_clear() passes ni->mi.mrec to is_rec_inuse() without checking whether the record pointer is NULL. Reaching the flaw requires the NTFS3 inode-eviction call path; the public record does not identify a crafted input or privilege boundary.

The record

CVE
CVE-2023-54272
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <20f9bfc664d6a478f9a5bbc0c380f80f7a1a06c6
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <39c6312009574ca73865354133ca222e7753a71b
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e7675f85a92233136c630000a0b7cf97826705da
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ec275bf9693d19cc0fdce8436f4c425ced86f6e7

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <20f9bfc664d6a478f9a5bbc0c380f80f7a1a06c6; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <39c6312009574ca73865354133ca222e7753a71b; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e7675f85a92233136c630000a0b7cf97826705da; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ec275bf9693d19cc0fdce8436f4c425ced86f6e7

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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