CVE-2024-40998: ext4: fix uninitialized ratelimit_state->lock access in __ext4_fill_super()

Published Jul 12, 2024
·
Updated

ext4: fix uninitialized ratelimitstate->lock access in ext4fillsuper()

Other sources

Linux Kernel is vulnerable to a denial of service, caused by uninitialized Ratelimitstate->Lock Access in ext4fillsuper(). By sending a specially crafted request, a local authenticated attacker could exploit this vulnerability to cause a denial of service.

IBM

Affected Software

11 affected componentsFixes available
redhat/kernel<6.6.36
6.6.36
redhat/kernel<6.9.7
6.9.7
redhat/kernel<6.10
6.10
IBM Security Verify Governance<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager Software Stack<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager Virtual Appliance<=ISVG 10.0.2
IBM Security Verify Governance Identity Manager Container<=ISVG 10.0.2
debian/linux<=5.10.223-1, <=5.10.234-1, <=6.1.129-1, <=6.1.133-1
6.12.22-1
Linux Linux kernel<6.6.36
Linux Linux kernel>=6.7<6.9.7
Microsoft cbl2 kernel 5.15.186.1-1

Event History

Jul 12, 2024
CVE Published
via MITRE·12:37 PM
Data Sourced
via MITRE·12:37 PM
Description
Data Sourced
via NVD·01:15 PM
Description
Data Sourced
via NVD·01:15 PM
RemedySeverityWeaknessAffected Software
Apr 11, 2025
Data Sourced
via Ubuntu·06:12 PM
RemedyDescriptionSeverityAffected Software
Sep 27, 2025
Data Sourced
via Microsoft·01:02 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·01:02 AM
Affected Software
Updated
via Microsoft·01:02 AM
DescriptionSeverity

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2024-40998?

CVE-2024-40998 has a medium severity rating due to its potential impact on system stability.

2

How do I fix CVE-2024-40998?

To fix CVE-2024-40998, upgrade your kernel to version 6.6.36 or later for Red Hat or to version 5.10.223-1 or later for Debian.

3

What systems are affected by CVE-2024-40998?

CVE-2024-40998 affects certain versions of the Linux kernel in both Red Hat and Debian distributions.

4

When was CVE-2024-40998 disclosed?

CVE-2024-40998 was disclosed in 2024 as a vulnerability in the Linux kernel related to uninitialized data access.

5

What components are impacted by CVE-2024-40998?

CVE-2024-40998 impacts the ext4 filesystem implementation in the Linux kernel.

Contact

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