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CVE-2024-0443
Detail
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.
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Note: The NVD and the CNA have provided the same score. When this occurs only the CNA information is displayed, but the Acceptance Level icon for the CNA is given a checkmark to signify NVD concurrence.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.
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OR
*cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.4
*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:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Added
CVSS V3.1
NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Added
CWE
NIST CWE-668
Changed
Reference Type
https://access.redhat.com/errata/RHSA-2023:7077 No Types Assigned
https://access.redhat.com/errata/RHSA-2023:7077 Third Party Advisory
Changed
Reference Type
https://access.redhat.com/security/cve/CVE-2024-0443 No Types Assigned
https://access.redhat.com/security/cve/CVE-2024-0443 Third Party Advisory
Changed
Reference Type
https://bugzilla.redhat.com/show_bug.cgi?id=2257968 No Types Assigned
https://bugzilla.redhat.com/show_bug.cgi?id=2257968 Issue Tracking, Third Party Advisory
Changed
Reference Type
https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/ No Types Assigned
https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/ Mailing List
CVE Modified by Red Hat, Inc.1/14/2024 10:15:46 AM
Action
Type
Old Value
New Value
Added
Reference
Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:7077 [No types assigned]
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 m
Added
Reference
Red Hat, Inc. https://access.redhat.com/security/cve/CVE-2024-0443 [No types assigned]
Added
Reference
Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=2257968 [No types assigned]
Added
Reference
Red Hat, Inc. https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/ [No types assigned]
Quick Info
CVE Dictionary Entry: CVE-2024-0443 NVD
Published Date: 01/11/2024 NVD
Last Modified: 01/18/2024
Source: Red Hat, Inc.