CVE-2025-21665

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.15.177 Linux kernel versions prior to 6.1.127 Linux kernel versions prior to 6.6.74 Linux kernel versions prior to 6.12.11

Description The issue is related to the folio seek hole data() function in the Linux kernel, which inadvertently truncates a 64-bit value to 32 bits on 32-bit kernels. This can lead to a possible infinite loop when writing to an xfs filesystem. The vulnerability may allow an attacker to cause a denial of service.

Recommendations For Linux kernel versions prior to 5.15.177, update to version 5.15.177 or later. For Linux kernel versions prior to 6.1.127, update to version 6.1.127 or later. For Linux kernel versions prior to 6.6.74, update to version 6.6.74 or later. For Linux kernel versions prior to 6.12.11, update to version 6.12.11 or later. As a temporary workaround, consider restricting access to the folio seek hole data() function until a patch is available.