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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
e446300968c6bd25d9cd6c33b9600780a39b3975 to < 321488cfac7d0eb6d97de467015ff754f85813ffaffected59c6902a96b4439e07c25ef86a4593bea5481c3b to < 07191f984842d50020789ff14c75da436a7f46a9affecteddee1e2b18cf5426eed985512ccc6636ec69dbdd6 to < 9f267393b036f1470fb12fb892d59e7ff8aeb58daffected3bf4bf54069f9b62a54988e5d085023c17a66c90 to < 5db17805b6ba4c34dab303f49aea3562fc25af75affectedc0deb027c99c099aa6b831e326bfba802b25e774 to < 99bc25748e394d17f9e8b10cc7f273b8e64c1c7eaffected4f7e7236435ca0abe005c674ebd6892c6e83aeb3 to < 43626dade36fa74d3329046f4ae2d7fdefe401c6affected
Linux Linux
Default version status: unaffected
5.4.213 to < 5.4.215affected5.10.143 to < 5.10.145affected5.15.68 to < 5.15.70affected5.19.9 to < 5.19.11affected
References
- https://git.kernel.org/stable/c/321488cfac7d0eb6d97de467015ff754f85813ff ↗
- https://git.kernel.org/stable/c/07191f984842d50020789ff14c75da436a7f46a9 ↗
- https://git.kernel.org/stable/c/9f267393b036f1470fb12fb892d59e7ff8aeb58d ↗
- https://git.kernel.org/stable/c/5db17805b6ba4c34dab303f49aea3562fc25af75 ↗
- https://git.kernel.org/stable/c/99bc25748e394d17f9e8b10cc7f273b8e64c1c7e ↗
- https://git.kernel.org/stable/c/43626dade36fa74d3329046f4ae2d7fdefe401c6 ↗