CVE-2024-38624

Service interruption via wrapped NTFS journal offset

Published Jun 21, 2024 · Updated May 11, 2026

Integer overflow in Linux kernel ntfs3 allows local users to interrupt service while processing an NTFS journal with large offsets. In fs/ntfs3/fslog.c, log_read_rst stores vbo in 32 bits while repeatedly calculating 2 * vbo + skip, allowing the journal offset to wrap before its size comparison. Low-privileged local access is required; published material limits the effect to service interruption but does not specify whether the kernel hangs, crashes, or reboots.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Linux kernel ntfs3 allows local users to interrupt service while processing an NTFS journal with large offsets. In fs/ntfs3/fslog.c, log_read_rst stores vbo in 32 bits while repeatedly calculating 2 * vbo + skip, allowing the journal offset to wrap before its size comparison. Low-privileged local access is required; published material limits the effect to service interruption but does not specify whether the kernel hangs, crashes, or reboots.

The record

CVE
CVE-2024-38624
Published
Jun 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-190, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 21, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.15
  2. Affected versionversion=b46acd6a6a627d876898e1c84d3f84902264b445 <109d85a98345ee52d47c650405dc51bdd2bc7d40
  3. Affected versionversion=b46acd6a6a627d876898e1c84d3f84902264b445 <2d1ad595d15f36a925480199bf1d9ad72614210b
  4. Affected versionversion=b46acd6a6a627d876898e1c84d3f84902264b445 <847db4049f6189427ddaefcfc967d4d235b73c57
  5. Affected versionversion=b46acd6a6a627d876898e1c84d3f84902264b445 <98db3155b54d3684ef0ab5bfa0b856d13f65843d
  6. Affected versionversion=b46acd6a6a627d876898e1c84d3f84902264b445 <e931f6b630ffb22d66caab202a52aa8cbb10c649

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.15; version=b46acd6a6a627d876898e1c84d3f84902264b445 <109d85a98345ee52d47c650405dc51bdd2bc7d40; version=b46acd6a6a627d876898e1c84d3f84902264b445 <2d1ad595d15f36a925480199bf1d9ad72614210b; version=b46acd6a6a627d876898e1c84d3f84902264b445 <847db4049f6189427ddaefcfc967d4d235b73c57; version=b46acd6a6a627d876898e1c84d3f84902264b445 <98db3155b54d3684ef0ab5bfa0b856d13f65843d; version=b46acd6a6a627d876898e1c84d3f84902264b445 <e931f6b630ffb22d66caab202a52aa8cbb10c649

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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