mm/mempool: fix poisoning order>0 pages with HIGHMEM

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CVE-2025-68231

In the Linux kernel, the following vulnerability has been resolved: mm/mempool: fix poisoning order0 pages with HIGHMEM The kernel test has reported: BUG: unable to handle page fault for address: fffba000 PF: supervisor write access in kernel mode PF: errorcode0x0002 - not-present page pde =...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from an improper ordering of the poisoning of the memory pool for HIGHMEM pages, which could lead to page errors...

PT-2025-51644

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.18.0-rc2-00031-gec7f31b2a2d3 Description The Linux kernel contains a flaw within the mm/mempool component related to handling page poisoning, specifically when dealing with CONFIG HIGHMEM. The issue arises...