CVE-2022-48671

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxe446300968c6bd25d9cd6c33b9600780a39b3975 < 321488cfac7d0eb6d97de467015ff754f85813ffaffected
LinuxLinux59c6902a96b4439e07c25ef86a4593bea5481c3b < 07191f984842d50020789ff14c75da436a7f46a9affected
LinuxLinuxdee1e2b18cf5426eed985512ccc6636ec69dbdd6 < 9f267393b036f1470fb12fb892d59e7ff8aeb58daffected
LinuxLinux3bf4bf54069f9b62a54988e5d085023c17a66c90 < 5db17805b6ba4c34dab303f49aea3562fc25af75affected
LinuxLinuxc0deb027c99c099aa6b831e326bfba802b25e774 < 99bc25748e394d17f9e8b10cc7f273b8e64c1c7eaffected
LinuxLinux4f7e7236435ca0abe005c674ebd6892c6e83aeb3 < 43626dade36fa74d3329046f4ae2d7fdefe401c6affected
LinuxLinux5.4.213 < 5.4.215affected
LinuxLinux5.10.143 < 5.10.145affected
LinuxLinux5.15.68 < 5.15.70affected
LinuxLinux5.19.9 < 5.19.11affected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References