Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2022-48671

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
03/05/2024
Last modified:
20/11/2024

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()<br /> <br /> syzbot is hitting percpu_rwsem_assert_held(&amp;cpu_hotplug_lock) warning at<br /> cpuset_attach() [1], for commit 4f7e7236435ca0ab ("cgroup: Fix<br /> threadgroup_rwsem cpus_read_lock() deadlock") missed that<br /> cpuset_attach() is also called from cgroup_attach_task_all().<br /> Add cpus_read_lock() like what cgroup_procs_write_start() does.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.4.213 (including) 5.4.215 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.10.143 (including) 5.10.145 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.15.68 (excluding) 5.15.70 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.19.9 (including) 5.19.11 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools