CVE-2022-50518

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

parisc: Fix locking in pdc_iodc_print() firmware call

Utilize pdc_lock spinlock to protect parallel modifications of the iodc_dbuf[] buffer, check length to prevent buffer overflow of iodc_dbuf[], drop the iodc_retbuf[] buffer and fix some wrong indentings.

This vulnerability does not impact Red Hat Enterprise Linux or other Red Hat offerings because the vulnerable code is isolated to the PA-RISC architecture. Red Hat does not build or distribute kernel packages for PA-RISC hardware. Consequently, supported Red Hat environments are not exposed to this flaw.