CVE-2025-39727 (GCVE-0-2025-39727)

Vulnerability from cvelistv5 – Published: 2025-09-07 15:16 – Updated: 2026-05-11 21:35
VLAI
Title
mm: swap: fix potential buffer overflow in setup_clusters()
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b843786b0bd01ced7fcdbf3b033d68db2f7c61b2 , < 91b370800b3f2b3dda244c0ab06719c4971190a5 (git)
Affected: b843786b0bd01ced7fcdbf3b033d68db2f7c61b2 , < 9b01ada580ee84fb319e7ecb5fb5b1f54a9eb799 (git)
Affected: b843786b0bd01ced7fcdbf3b033d68db2f7c61b2 , < 815c528b13f2bb9b3130c13bedeabf2351a68129 (git)
Affected: b843786b0bd01ced7fcdbf3b033d68db2f7c61b2 , < 152c1339dc13ad46f1b136e8693de15980750835 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.42 , ≤ 6.12.* (semver)
Unaffected: 6.15.10 , ≤ 6.15.* (semver)
Unaffected: 6.16.1 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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}



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