CVE-2025-22045 is a medium-severity vulnerability in the Linux kernel's x86 memory management code. It involves an issue in the flush_tlb_range() function when used to invalidate normal PMD entries, which point to page tables. The flaw affects how the x86 version handles TLB invalidation compared to the arm64 version, potentially impacting speculative page table walks and lazy TLB CPU handling. No known exploits are reported, and the impact is considered limited. The vulnerability was disclosed with a CVSS score of 5.5 and does not affect confidentiality or integrity but can impact availability. No affected versions or patch information are explicitly stated in the provided data.