Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/memory-failure: Fixed the issue with VMBUGONPAGEPagePoisonedpage when unpoisoning memory. When I performed memory failure tests, the following panic occurred: Page dumped because: VMBUGONPAGEPagePoisonedpage. Kernel BUG at...

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...