vulnerability
Oracle Linux: CVE-2025-39727: ELSA-2025-19106: kernel security update (MODERATE) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:L/Au:S/C:C/I:P/A:C) | Sep 7, 2025 | Oct 16, 2025 | Oct 29, 2025 |
Severity
6
CVSS
(AV:L/AC:L/Au:S/C:C/I:P/A:C)
Published
Sep 7, 2025
Added
Oct 16, 2025
Modified
Oct 29, 2025
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.
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.
Solutions
oracle-linux-upgrade-kerneloracle-linux-upgrade-kernel-uek
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