CVEvulnerability

CVE-2025-39727

7.8 HIGH Published 2025-09-07 Modified 2026-10-19 Official page ↗
Status
Analyzed
Published
2025-09-07
Last modified
2026-10-19
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-120

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 configurations

• linux linux kernel (>= 6.12 < 6.12.42) • linux linux kernel (>= 6.13 < 6.15.10) • linux linux kernel (>= 6.16 < 6.16.1)

Related

Weakness · CWE (1)

  • CWE-120 Buffer Copy without Checking Size of Input weakness

References