# CVE-2022-48671: linux: In the Linux kernel, the following vulnerability has been resolved:  cgroup: Add missing cpus_read_lock() to cgroup_a...

CVE-2022-48671 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48671, released May 3, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-48671
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0018
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 3, 2024

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.19.11-1 | [DEBIAN-CVE-2022-48671](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48671.md) | May 3, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.19.11-1 | [DEBIAN-CVE-2022-48671](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48671.md) | May 3, 2024 |
| Linux | linux Debian 14 | 5.19.11-1 | [DEBIAN-CVE-2022-48671](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48671.md) | May 3, 2024 |

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