CVE-2026-46017 mm: fix deferred split queue races during migration

In the Linux kernel, the following vulnerability has been resolved: mm: fix deferred split queue races during migration migratefoliomove records the deferred split queue state from src and replays it on dst. Replaying it after removemigrationptessrc, dst, 0 makes dst visible before it is requeued...

CVE-2026-46017

CVE-2026-46017 involves a Linux kernel race in the migration path for folios. The vulnerability stems from a deferred split queue race during migrate_folio_move(): dst can become visible and then be requeued too late, allowing a concurrent rmap-removal path to mark dst partially mapped and trigge...

CVE-2025-71311 fs/ntfs3: Initialize new folios before use

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Initialize new folios before use KMSAN reports an uninitialized value in longestmatchstd, invoked from ntfscompresswrite. When new folios are allocated without being marked uptodate and nireadframe is skipped because th...

CVE-2026-45942 ext4: fix e4b bitmap inconsistency reports

In the Linux kernel, the following vulnerability has been resolved: ext4: fix e4b bitmap inconsistency reports A bitmap inconsistency issue was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple e4b bitmap check failures like: ext4mbcomplexscangroup:2508: group...

CVE-2026-45942 ext4: fix e4b bitmap inconsistency reports

In the Linux kernel, the following vulnerability has been resolved: ext4: fix e4b bitmap inconsistency reports A bitmap inconsistency issue was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple e4b bitmap check failures like: ext4mbcomplexscangroup:2508: group...

CVE-2026-45942

Summary of CVE-2026-45942 : A race condition in the Linux kernel ext4 bitmap handling enables inconsistent bitmap reporting due to concurrent page migration and bitmap modification in the load_buddy path. The root cause is that the fast load_buddy path only increments the folio refcount and can o...

CVE-2025-71309 fs/ntfs3: fix deadlock in ni_read_folio_cmpr

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: fix deadlock in nireadfoliocmpr Syzbot reported a task hung in nireadpagecmpr now nireadfoliocmpr. This is caused by a lock inversion deadlock involving the inode mutex nilock and page locks. Scenario: 1. Task A enters...

CVE-2025-71309 fs/ntfs3: fix deadlock in ni_read_folio_cmpr

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: fix deadlock in nireadfoliocmpr Syzbot reported a task hung in nireadpagecmpr now nireadfoliocmpr. This is caused by a lock inversion deadlock involving the inode mutex nilock and page locks. Scenario: 1. Task A enters...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the fact that when allocating new folios in ntfscompresswrite, it does not mark them as uptodate...

PT-2026-43693

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ntfs3 file system where new folios are not properly initialized before use. This occurs when new folios are allocated without being marked as uptodate and the ni...

CVE-2025-71309

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: fix deadlock in nireadfoliocmpr Syzbot reported a task hung in nireadpagecmpr now nireadfoliocmpr. This is caused by a lock inversion deadlock involving the inode mutex nilock and page locks. Scenario: 1. Task A enters...

PT-2026-43692

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: fix deadlock in ni read folio cmpr Syzbot reported a task hung in ni readpage cmpr now ni read folio cmpr. This is caused by a lock inversion deadlock involving the inode mutex ni lock and page locks. Scenario: 1. Task ...

PT-2026-43809

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the ext4 file system between page migration and bitmap modification during mixed huge-page workloads. The issue occurs because the fast path of the load buddy...

PT-2026-43933

Name of the Vulnerable Software and Affected Versions Linux kernel versions 6.18.16 Linux kernel version 6.19.6 Linux kernel version 7.0-rc1 Description An off-by-one error exists in the Ceph component of the Linux kernel. The issue occurs when move dirty folio in page array fails to allocate a...

RXSA-2026:3488 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: smc: Use skdstget and dstdevrcu in smcclcprfxmatch CVE-2025-40168 kernel: ipv6: BUG in pskbexpandhead as part of calipsoskbuffsetattr CVE-2025-71085 kernel: Linux kernel: Denial of Servic...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm: memfdluo: always dirty all folios A “dirty folio” is one that has been written to. A “clean folio” is the opposite. Since a clean folio contains no user data, it can be freed under memory pressure. Preserving memfd by saving...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Block devices with logical block size page size will be rejected when THP is disabled. If THP is disabled and there are block devices with logical block size page size, the following nullptrderef panic occurs during boot: 13.2 mK...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: erofs: fixed the runtime warning in truncatefoliobatchexceptionals Commit 0e2f80afcfa6 "fs/dax: ensure all pages are idle before filesystem unmount" introduced the WARNONONCE to check whether the filesystem has removed all DAX...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm: zswap: fix missing folio cleanup in writeback race path In zswapwritebackentry, after obtaining a folio from readswapcacheasync, we reacquire the tree lock to ensure that the swap entry was not invalidated or recycled. If it...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In mm: hugememory, there was a issue where the function mappinglargefoliosupport was misused for anonymous folios. When I conducted a split test involving large folios, a warning was triggered: “5059.122759T166 Cannot split file...