Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mm:swap: A potential buffer overflow was fixed in setupclusters. In setupswapmap, we ensure that badpages are within the range 0, lastpage. Since maxpages might be less than lastpage, setupclusters may encounter a buffer overflow...

kernel: mm: swap: fix potential buffer overflow in setup_clusters()

A flaw was found in the Linux kernel's memory management mm swap component. A local attacker with low privileges could exploit a buffer overflow vulnerability in the setupclusters function. This issue arises from insufficient validation of page ranges, which could allow an attacker to write data...

CVE-2025-39727: Buffer Copy without Checking Size of Input

In the Linux kernel, the following vulnerability has been resolved: mm: swap: fix potential buffer overflow in setupclusters In setupswapmap, we only ensure badpages are in range 0, lastpage. As maxpages might be = maxpages. Only call incclusterinfopage for badpage which is maxpages to fix the...