CVE-2024-26981

Unspecified impact via nilfs2 out-of-bounds read

Published May 1, 2024 · Updated May 11, 2026

Out-of-bounds read in Linux nilfs2 allows attackers to trigger an unspecified impact through an inode mode with invalid file-type bits. nilfs_set_de_type uses (mode & S_IFMT) >> S_SHIFT directly as an index into nilfs_type_by_mode, whose original length excludes the maximum resulting index. The condition requires mode & S_IFMT to equal S_IFMT; published material establishes the invalid read but not a crash, disclosure, or privilege gain.

CVSS severityUnavailable
Unscored
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Linux nilfs2 allows attackers to trigger an unspecified impact through an inode mode with invalid file-type bits. nilfs_set_de_type uses (mode & S_IFMT) >> S_SHIFT directly as an index into nilfs_type_by_mode, whose original length excludes the maximum resulting index. The condition requires mode & S_IFMT to equal S_IFMT; published material establishes the invalid read but not a crash, disclosure, or privilege gain.

The record

CVE
CVE-2024-26981
Published
May 1, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. May 1, 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=2.6.30
  2. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <054f29e9ca05be3906544c5f2a2c7321c30a4243
  3. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <2382eae66b196c31893984a538908c3eb7506ff9
  4. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <7061c7efbb9e8f11ce92d6b4646405ea2b0b4de1
  5. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <897ac5306bbeb83e90c437326f7044c79a17c611
  6. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <90823f8d9ecca3d5fa6b102c8e464c62f416975f
  7. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <90f43980ea6be4ad903e389be9a27a2a0018f1c8
  8. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <bdbe483da21f852c93b22557b146bc4d989260f0
  9. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <c4a7dc9523b59b3e73fd522c73e95e072f876b16

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.30; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <054f29e9ca05be3906544c5f2a2c7321c30a4243; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <2382eae66b196c31893984a538908c3eb7506ff9; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <7061c7efbb9e8f11ce92d6b4646405ea2b0b4de1; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <897ac5306bbeb83e90c437326f7044c79a17c611; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <90823f8d9ecca3d5fa6b102c8e464c62f416975f; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <90f43980ea6be4ad903e389be9a27a2a0018f1c8; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <bdbe483da21f852c93b22557b146bc4d989260f0; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <c4a7dc9523b59b3e73fd522c73e95e072f876b16

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

CWE-125Out-of-bounds Read

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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