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CVE-2025-39727

HIGH CVSS: 7.8 Published: 2025-09-07 Modified: 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: mm: swap: fix potential buffer overflow in setup_clusters() In setup_swap_map(), we only ensure badpages are in range (0, last_page]. As maxpages might be < last_page, setup_clusters() will encounter a buffer overflow when a badpage is >= maxpages. Only call inc_cluster_info_page() for badpage which is < maxpages to fix the issue.

Affected Platforms

Linux Linux Kernel

Weakness Type

CWE-120

References