CVE-2024-0443

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2023:6583
https://access.redhat.com/errata/RHSA-2023:7077	Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7370
https://access.redhat.com/security/cve/CVE-2024-0443	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2257968	Issue Tracking Third Party Advisory
https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/	Mailing List

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.4:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.4:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.4:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.4:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.4:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.4:rc6::::::

Configuration 2 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*

Configuration 3 (hide)

cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

History

No history.

Information

Published : 2024-01-12 00:15

Updated : 2024-05-20 11:15

NVD link : CVE-2024-0443

Mitre link : CVE-2024-0443

CVE.ORG link : CVE-2024-0443

JSON object : View

Products Affected

redhat

enterprise_linux

fedoraproject

fedora

linux

linux_kernel

CWE

CWE-668

Exposure of Resource to Wrong Sphere

CWE-402

Transmission of Private Resources into a New Sphere ('Resource Leak')

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