← CVE Intelligence

CVE-2022-48671

cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all() PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected e446300968c6bd25d9cd6c33b9600780a39b3975 before 321488cfac7d0eb6d97de467015ff754f85813ff; affected 59c6902a96b4439e07c25ef86a4593bea5481c3b before 07191f984842d50020789ff14c75da436a7f46a9; affected dee1e2b18cf5426eed985512ccc6636ec69dbdd6 before 9f267393b036f1470fb12fb892d59e7ff8aeb58d; affected 3bf4bf54069f9b62a54988e5d085023c17a66c90 before 5db17805b6ba4c34dab303f49aea3562fc25af75; affected c0deb027c99c099aa6b831e326bfba802b25e774 before 99bc25748e394d17f9e8b10cc7f273b8e64c1c7e; affected 4f7e7236435ca0abe005c674ebd6892c6e83aeb3 before 43626dade36fa74d3329046f4ae2d7fdefe401c6
Linux / Linuxaffected 5.4.213 before 5.4.215; affected 5.10.143 before 5.10.145; affected 5.15.68 before 5.15.70; affected 5.19.9 before 5.19.11

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.