CVE-2025-39727 - mm: swap: fix potential buffer overflow in setup_clusters()

CVE-2025-39727 - mm: swap: fix potential buffer overflow in setup_clusters()

https://cvefeed.io/rssfeed/latest.atom / Sun, 09/07/2025 - 20:38
CVE ID : CVE-2025-39727
Published : Sept. 7, 2025, 4:15 p.m. | 51 minutes ago
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.
Severity: 0.0 | NA
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