kernel: mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory

A use-after-free memory bug exists in the linux kernel, such that unpoisonmemory tries to check the PGHWPoison flags of an uninitialized page. So VMBUGONPAGEPagePoisonedpage is triggered, leading to damage to the system availability and integrity...

RHEL 8 : kernel (RHSA-2025:22388)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:22388 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nfsd: handle getclientlocked...