Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mm/vmscan: Fixed handling of hwpoisoned large folio entries in shrinkfoliolist. In shrinkfoliolist, the hwpoisoned folio might be large folio, which cannot be handled by unmappoisonedfolio. For THP, trytounmapone must be called...

UBUNTU-CVE-2022-50517

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: do not clobber swpentryt during THP split The following has been observed when running stressng mmap since commit b653db77350c "mm: Clear page-private when splitting or migrating a page" watchdog: BUG: soft lockup ...

UBUNTU-CVE-2022-48802

In the Linux kernel, the following vulnerability has been resolved: fs/proc: taskmmu.c: don't read mapcount for migration entry The syzbot reported the below BUG: kernel BUG at include/linux/page-flags.h:785! invalid opcode: 0000 1 PREEMPT SMP KASAN CPU: 1 PID: 4392 Comm: syz-executor560 Not...

kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check

An issue was discovered in splithugepmd in mm/hugememory.c in the Linux kernel. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check...