CVE-2022-48671
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…
Does this matter?
Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.18% probability · 8th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/07191f984842d50020789ff14c75da436a7f46a9Patch
- https://git.kernel.org/stable/c/321488cfac7d0eb6d97de467015ff754f85813ffPatch
- https://git.kernel.org/stable/c/43626dade36fa74d3329046f4ae2d7fdefe401c6Patch
- https://git.kernel.org/stable/c/5db17805b6ba4c34dab303f49aea3562fc25af75Patch
- https://git.kernel.org/stable/c/99bc25748e394d17f9e8b10cc7f273b8e64c1c7ePatch
- https://git.kernel.org/stable/c/9f267393b036f1470fb12fb892d59e7ff8aeb58dPatch
- https://git.kernel.org/stable/c/07191f984842d50020789ff14c75da436a7f46a9Patch
- https://git.kernel.org/stable/c/321488cfac7d0eb6d97de467015ff754f85813ffPatch
- https://git.kernel.org/stable/c/43626dade36fa74d3329046f4ae2d7fdefe401c6Patch
- https://git.kernel.org/stable/c/5db17805b6ba4c34dab303f49aea3562fc25af75Patch
- https://git.kernel.org/stable/c/99bc25748e394d17f9e8b10cc7f273b8e64c1c7ePatch
- https://git.kernel.org/stable/c/9f267393b036f1470fb12fb892d59e7ff8aeb58dPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.