Buffer Overflow The advisory has been revoked - it doesn't affect any version of package kernel-kdump-devel (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS6-KERNELKDUMPDEVEL-12550494
- published8 Sept 2025
- disclosed7 Sept 2025
Introduced: 7 Sep 2025
NewCVE-2025-39727 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:6.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-kdump-devel package and not the kernel-kdump-devel package as distributed by Centos.
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.
References
- https://access.redhat.com/security/cve/CVE-2025-39727
- https://git.kernel.org/stable/c/152c1339dc13ad46f1b136e8693de15980750835
- https://git.kernel.org/stable/c/815c528b13f2bb9b3130c13bedeabf2351a68129
- https://git.kernel.org/stable/c/91b370800b3f2b3dda244c0ab06719c4971190a5
- https://git.kernel.org/stable/c/9b01ada580ee84fb319e7ecb5fb5b1f54a9eb799