Use After Free The advisory has been revoked - it doesn't affect any version of package kernel-tools-libs-devel Open this link in a new tab

The Red Hat security team deemed this advisory irrelevant for RHEL:8.

Note: Versions mentioned in the description apply only to the upstream kernel-tools-libs-devel package and not the kernel-tools-libs-devel package as distributed by RHEL.

In the Linux kernel, the following vulnerability has been resolved:

peci: cpu: Fix use-after-free in adev_release()

When auxiliary_device_add() returns an error, auxiliary_device_uninit() is called, which causes refcount for device to be decremented and .release callback will be triggered.

Because adev_release() re-calls auxiliary_device_uninit(), it will cause use-after-free: [ 1269.455172] WARNING: CPU: 0 PID: 14267 at lib/refcount.c:28 refcount_warn_saturate+0x110/0x15 [ 1269.464007] refcount_t: underflow; use-after-free.

• https://access.redhat.com/security/cve/CVE-2022-48670
• https://git.kernel.org/stable/c/1c11289b34ab67ed080bbe0f1855c4938362d9cf
• https://git.kernel.org/stable/c/c87f1f99e26ea4ae08cabe753ae98e5626bdba89