CVE-2024-41034

Kernel corruption via malformed NILFS2 directory entry

Published Jul 29, 2024 · Updated Aug 5, 2026

Out-of-bounds access in the Linux NILFS2 filesystem allows attackers to crash or corrupt the kernel via a malformed directory. nilfs_dotdot() accepts an invalid parent-entry location beyond the first directory chunk, and nilfs_set_link() then reads and writes outside the folio. A privileged user or automount daemon must first mount the crafted NILFS2 image; an unprivileged rename can then panic the host or corrupt kernel memory.

CVSS severity7.8
High
EPSS probability0.32%
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 access in the Linux NILFS2 filesystem allows attackers to crash or corrupt the kernel via a malformed directory. nilfs_dotdot() accepts an invalid parent-entry location beyond the first directory chunk, and nilfs_set_link() then reads and writes outside the folio. A privileged user or automount daemon must first mount the crafted NILFS2 image; an unprivileged rename can then panic the host or corrupt kernel memory.

The record

CVE
CVE-2024-41034
Published
Jul 29, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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 <1a8879c0771a68d70ee2e5e66eea34207e8c6231
  3. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <24c1c8566a9b6be51f5347be2ea76e25fc82b11e
  4. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <298cd810d7fb687c90a14d8f9fd1b8719a7cb8a5
  5. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <60f61514374e4a0c3b65b08c6024dd7e26150bfd
  6. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <7000b438dda9d0f41a956fc9bffed92d2eb6be0d
  7. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <a9a466a69b85059b341239766a10efdd3ee68a4b
  8. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <a9e1ddc09ca55746079cc479aa3eb6411f0d99d4
  9. Affected versionversion=2ba466d74ed74f073257f86e61519cb8f8f46184 <ff9767ba2cb949701e45e6e4287f8af82986b703

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.30; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <1a8879c0771a68d70ee2e5e66eea34207e8c6231; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <24c1c8566a9b6be51f5347be2ea76e25fc82b11e; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <298cd810d7fb687c90a14d8f9fd1b8719a7cb8a5; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <60f61514374e4a0c3b65b08c6024dd7e26150bfd; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <7000b438dda9d0f41a956fc9bffed92d2eb6be0d; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <a9a466a69b85059b341239766a10efdd3ee68a4b; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <a9e1ddc09ca55746079cc479aa3eb6411f0d99d4; version=2ba466d74ed74f073257f86e61519cb8f8f46184 <ff9767ba2cb949701e45e6e4287f8af82986b703

Published CVSS scores

5.5Canonical UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

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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