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 =...

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...

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...