kernel: mm, thp: bail out early in collapse_file for writeback page

A flaw was found in the Linux kernel's Transparent Huge Pages THP memory management subsystem. A local user can exploit this vulnerability to cause a kernel panic, resulting in a Denial of Service DoS. This issue occurs when the kernel attempts to collapse file-backed memory pages into huge pages...

UBUNTU-CVE-2021-47492

In the Linux kernel, the following vulnerability has been resolved: mm, thp: bail out early in collapsefile for writeback page Currently collapsefile does not explicitly check PGwriteback, instead, pagehasprivate and trytoreleasepage are used to filter writeback pages. This does not work for xfs...

PT-2024-8948

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The vulnerability is related to the Linux kernel's handling of writeback pages in the collapse file function. Currently, collapse file does not explicitly check PG writeback, instead,...

PT-2021-26664

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.15 Description: The issue is related to the collapse file function for writeback pages, where it may bail out early. This is an automated ID intended to aid in discovery of potential security vulnerabilities,...

PT-2021-26595

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.14.16 Description The issue is related to the collapse file function for writeback pages, where it may bail out early. This could potentially lead to security vulnerabilities, although the actual impact and...

PT-2021-30590

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.14.16 Description The issue is related to the collapse file function for writeback pages, where it may bail out early. This could potentially lead to security vulnerabilities, although the actual impact and...

PT-2021-30525

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.77 Description The issue is related to the collapse file function for writeback pages, where it may bail out early. This is an automated identification of a potential security issue, but the actual impact a...

PT-2021-30659

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15 Description The issue is related to the collapse file function for writeback pages, where it may bail out early. This is an automated identification of a potential security issue, and its actual impact and...

PT-2021-26530

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.77 Description The issue is related to the collapse file function for writeback pages, where it may bail out early. This is an automated identification of a potential security issue, and its actual impact a...