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CVE-2024-0443

UNKNOWN
Published 2024-01-11T23:30:52.291Z
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CVSS Score

V3.1
5.5
/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2023.03.01
0.000
probability
of exploitation in the wild

There is a 0.0% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-01-25
Exploit Probability
Percentile: 0.051
Higher than 5.1% of all CVEs

Attack Vector Metrics

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Description

A flaw was found in the blkgs destruction path in block/blk-cgroup.c in the Linux kernel, leading to a cgroup blkio memory leakage problem. When a cgroup is being destroyed, cgroup_rstat_flush() is only called at css_release_work_fn(), which is called when the blkcg reference count reaches 0. This circular dependency will prevent blkcg and some blkgs from being freed after they are made offline. This issue may allow an attacker with a local access to cause system instability, such as an out of memory error.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Unknown Vendor

Unknown Product

Affected Versions:

0
Red Hat

Red Hat Enterprise Linux 8

Affected Versions:

0:4.18.0-513.5.1.el8_9
Red Hat

Red Hat Enterprise Linux 9

Affected Versions:

0:5.14.0-362.8.1.el9_3
Red Hat

Red Hat Enterprise Linux 9

Affected Versions:

0:5.14.0-362.8.1.el9_3
Red Hat

Red Hat Enterprise Linux 9.2 Extended Update Support

Affected Versions:

0:5.14.0-284.40.1.el9_2
Red Hat

Red Hat Enterprise Linux 6

Red Hat

Red Hat Enterprise Linux 7

Red Hat

Red Hat Enterprise Linux 7

Red Hat

Red Hat Enterprise Linux 8

Red Hat

Red Hat Enterprise Linux 9

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-rqh4-x2v7-j34g

Advisory Details

A flaw was found in the blkgs destruction path in block/blk-cgroup.c in the Linux kernel, leading to a cgroup blkio memory leakage problem. When a cgroup is being destroyed, cgroup_rstat_flush() is only called at css_release_work_fn(), which is called when the blkcg reference count reaches 0. This circular dependency will prevent blkcg and some blkgs from being freed after they are made offline. This issue may allow an attacker with a local access to cause system instability, such as an out of memory error.

CVSS Scoring

CVSS Score

5.0

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-0443
WEB https://access.redhat.com/errata/RHSA-2023:6583
WEB https://access.redhat.com/errata/RHSA-2023:7077
WEB https://access.redhat.com/errata/RHSA-2023:7370
WEB https://access.redhat.com/security/cve/CVE-2024-0443
WEB https://bugzilla.redhat.com/show_bug.cgi?id=2257968
WEB https://lore.kernel.org/linux-block/[email protected]

Advisory provided by GitHub Security Advisory Database. Published: January 12, 2024, Modified: May 20, 2024

References

https://access.redhat.com/errata/RHSA-2023:6583
https://access.redhat.com/errata/RHSA-2023:7077
https://access.redhat.com/errata/RHSA-2023:7370
https://access.redhat.com/security/cve/CVE-2024-0443
https://bugzilla.redhat.com/show_bug.cgi?id=2257968
https://lore.kernel.org/linux-block/[email protected]/
Published: 2024-01-11T23:30:52.291Z
Last Modified: 2024-11-21T19:40:07.433Z
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