Improper Locking Affecting kernel-rt-debug package, versions *
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Test your applications- Snyk ID SNYK-RHEL7-KERNELRTDEBUG-6826185
- published 9 May 2024
- disclosed 3 May 2024
Introduced: 3 May 2024
CVE-2022-48671 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:7 kernel-rt-debug.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug package and not the kernel-rt-debug package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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://access.redhat.com/security/cve/CVE-2022-48671
- https://git.kernel.org/stable/c/07191f984842d50020789ff14c75da436a7f46a9
- https://git.kernel.org/stable/c/321488cfac7d0eb6d97de467015ff754f85813ff
- https://git.kernel.org/stable/c/43626dade36fa74d3329046f4ae2d7fdefe401c6
- https://git.kernel.org/stable/c/5db17805b6ba4c34dab303f49aea3562fc25af75
- https://git.kernel.org/stable/c/99bc25748e394d17f9e8b10cc7f273b8e64c1c7e
- https://git.kernel.org/stable/c/9f267393b036f1470fb12fb892d59e7ff8aeb58d