CVE-2022-48671

medium

Description

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

References

https://git.kernel.org/stable/c/9f267393b036f1470fb12fb892d59e7ff8aeb58d

https://git.kernel.org/stable/c/99bc25748e394d17f9e8b10cc7f273b8e64c1c7e

https://git.kernel.org/stable/c/5db17805b6ba4c34dab303f49aea3562fc25af75

https://git.kernel.org/stable/c/43626dade36fa74d3329046f4ae2d7fdefe401c6

https://git.kernel.org/stable/c/321488cfac7d0eb6d97de467015ff754f85813ff

https://git.kernel.org/stable/c/07191f984842d50020789ff14c75da436a7f46a9

Details

Source: Mitre, NVD

Published: 2024-05-03

Updated: 2024-05-23

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium