CVE-2021-47491

In the Linux kernel, the following vulnerability has been resolved: mm: khugepaged: skip huge page collapse for special files The read-only THP for filesystems will collapse THP for files opened readonly and mapped with VMEXEC. The intended usecase is to avoid TLB misses for large text segments...

CVE-2021-47491 mm: khugepaged: skip huge page collapse for special files

In the Linux kernel, the following vulnerability has been resolved: mm: khugepaged: skip huge page collapse for special files The read-only THP for filesystems will collapse THP for files opened readonly and mapped with VMEXEC. The intended usecase is to avoid TLB misses for large text segments...

CVE-2021-47491

CVE-2021-47491 concerns the Linux kernel vulnerability in mm: khugepaged, where read-only THP for filesystems could collapse THP for readonly/executable mappings of non-regular files (e.g., block devices). The root cause is that THP collapse was allowed for such files due to an insufficient vm_fi...

CVE-2021-47492 mm, thp: bail out early in collapse_file for writeback page

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...

CVE-2021-47492

CVE-2021-47492 concerns a Linux kernel vulnerability in the memory management (mm) subsystem, specifically the THP collapse_file path. The issue arises because collapse_file does not explicitly check PG_writeback and uses page_has_private/try_to_release_page to filter writeback pages. This is pro...

CVE-2021-47491 mm: khugepaged: skip huge page collapse for special files

In the Linux kernel, the following vulnerability has been resolved: mm: khugepaged: skip huge page collapse for special files The read-only THP for filesystems will collapse THP for files opened readonly and mapped with VMEXEC. The intended usecase is to avoid TLB misses for large text segments...

CVE-2021-47492 mm, thp: bail out early in collapse_file for writeback page

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...

Important: Red Hat Security Advisory: java-17-openjdk security and bug fix update

An update for java-17-openjdk is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Moderate: java-21-openjdk security and bug fix update

The java-21-openjdk packages provide the OpenJDK 21 Java Runtime Environment and the OpenJDK 21 Java Software Development Kit. Security Fixes: OpenJDK: memory corruption issue on x8664 with AVX-512 8317121 CVE-2023-22025 OpenJDK: certificate path validation issue during client authentication...

Moderate: Red Hat Security Advisory: java-21-openjdk security and bug fix update

An update for java-21-openjdk is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

ALSA-2023:6738 Moderate: java-21-openjdk security and bug fix update

The java-21-openjdk packages provide the OpenJDK 21 Java Runtime Environment and the OpenJDK 21 Java Software Development Kit. Security Fixes: OpenJDK: memory corruption issue on x8664 with AVX-512 8317121 CVE-2023-22025 OpenJDK: certificate path validation issue during client authentication...

CVE-2023-1582

A race problem was found in fs/proc/taskmmu.c in the memory management sub-component in the Linux kernel. This issue may allow a local attacker with user privilege to cause a denial of service. Mitigation This flaw can be mitigated by disabling THP on the system. How to disable THP ?...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security...

GSD-2022-1006651 mm/huge_memory: do not clobber swp_entry_t during THP split

mm/hugememory: do not clobber swpentryt during THP split This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.7 by commit...

PT-2022-34906 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.0.7 Description: The issue is related to the mm/huge memory component, where the swp entry t is clobbered during the THP split process. This problem was introduced in version v5.19 and is fixed in version...

kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check

An issue was discovered in splithugepmd in mm/hugememory.c in the Linux kernel. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check...

UVI-2021-1002193 mm: filemap: check if THP has hwpoisoned subpage for PMD page fault

mm: filemap: check if THP has hwpoisoned subpage for PMD page fault This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15 by commit...

GSD-2021-1002193 mm: filemap: check if THP has hwpoisoned subpage for PMD page fault

mm: filemap: check if THP has hwpoisoned subpage for PMD page fault This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15 by commit...

GSD-2021-1002124 mm: filemap: check if THP has hwpoisoned subpage for PMD page fault

mm: filemap: check if THP has hwpoisoned subpage for PMD page fault This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.14.16 by commit...

UVI-2021-1002124 mm: filemap: check if THP has hwpoisoned subpage for PMD page fault

mm: filemap: check if THP has hwpoisoned subpage for PMD page fault This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.14.16 by commit...