cve-2026-31431-poc

CVE 2026-31431 POC この脆弱性は、Linuxのauthencsn長さ検証機能のエラーを悪用し、dirty pageがユーザーに権限のない場所にwrite backされることで、権限昇格を引き起こします。 主にこのrepoの攻撃原理を参考にしており、一部のpayloadは修正されています。 https://github.com/rootsecdev/cve202631431 この図は6.12.85 linux kernelの修正パッチです。今後これらのパッチをtrace codeしていきます。 実装プロセス 1. RAM内の/etc/passwdを開いて修正する...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

In the Linux kernel, the following vulnerability has been resolved: f2fs: The issue was fixed by dropping all dirty pages during umount if cperror is set. The xfstest generic/361 report indicates a bug as follows: f2fsbugonsbi, sbi-fsyncnodenum; Kernel bug located at fs/f2fs/super.c:1627! RIP:...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-101961)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101961 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: only release the dirty pages io tree after successful writes WARNING With extra warning o...

CVE-2026-64064

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfsinvalidatefolio to clear dirty bit if all changes gone If a streaming write is made, this will leave the relevant modified folio in a not-uptodate, but dirty state with a netfsfolio struct hung off of folio-privat...

CVE-2026-53372

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Block PASID attachment to nested domain with dirty tracking Kernel lacks dirty tracking support on nested domain attached to PASID, fails the attachment early if nesting parent domain is dirty tracking configured,...

SUSE CVE-2026-53284

In the Linux kernel, the following vulnerability has been resolved: btrfs: only release the dirty pages io tree after successful writes WARNING With extra warning on dirty extent buffers at umount aka, the next patch in the series, test case generic/388 can trigger the following warning about dir...

CVE-2026-53284

In the Linux kernel, the following vulnerability has been resolved: btrfs: only release the dirty pages io tree after successful writes WARNING With extra warning on dirty extent buffers at umount aka, the next patch in the series, test case generic/388 can trigger the following warning about dir...

DEBIAN-CVE-2026-53284

In the Linux kernel, the following vulnerability has been resolved: btrfs: only release the dirty pages io tree after successful writes WARNING With extra warning on dirty extent buffers at umount aka, the next patch in the series, test case generic/388 can trigger the following warning about dir...

CVE-2026-53284 btrfs: only release the dirty pages io tree after successful writes

In the Linux kernel, the following vulnerability has been resolved: btrfs: only release the dirty pages io tree after successful writes WARNING With extra warning on dirty extent buffers at umount aka, the next patch in the series, test case generic/388 can trigger the following warning about dir...

CVE-2026-53284

CVE-2026-53284 (Linux kernel, btrfs): The issue arises in btrfs_write_and_wait_transaction() where, after an error from btrfs_write_marked_extent(), the code still calls btrfs_extent_io_tree_release() to clear the dirty_pages io tree. This tree may contain records not yet submitted, and subsequen...

EUVD-2026-39889

In the Linux kernel, the following vulnerability has been resolved: btrfs: only release the dirty pages io tree after successful writes WARNING With extra warning on dirty extent buffers at umount aka, the next patch in the series, test case generic/388 can trigger the following warning about dir...

CVE-2026-53284 btrfs: only release the dirty pages io tree after successful writes

In the Linux kernel, the following vulnerability has been resolved: btrfs: only release the dirty pages io tree after successful writes WARNING With extra warning on dirty extent buffers at umount aka, the next patch in the series, test case generic/388 can trigger the following warning about dir...

CVE-2026-53284

In the Linux kernel, the following vulnerability has been resolved: btrfs: only release the dirty pages io tree after successful writes WARNING With extra warning on dirty extent buffers at umount aka, the next patch in the series, test case generic/388 can trigger the following warning about dir...

PT-2026-52923

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Btrfs file system where the dirty pages io tree is released prematurely. Within the btrfs write and wait transaction function, the system attempts to write dirty...

CVE-2026-53284: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: btrfs: only release the dirty pages io tree after successful writes WARNING With extra warning on dirty extent buffers at umount aka, the next patch in the series, test case generic/388 can trigger the following warning about dir...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: fuse: The fuserelease function contains a race condition between the write2 and close2 calls. This allows pages to become dirty after the fuseFlush - writeinodenow operation. If these pages are not flushed from fuseRelease, there...

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 memfd mechanism’s handling of dirty flags during preservation operations. This vulnerability...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013823)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013823 advisory. In the Linux kernel, the following vulnerability has been resolved: ubifs: ubifsreleasepage: Remove ubifsassert0 to valid this process There are two states for ubifs...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011124)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011124 advisory. In the Linux kernel, the following vulnerability has been resolved: ubifs: ubifsreleasepage: Remove ubifsassert0 to valid this process There are two states for ubifs...

SUSE CVE-2026-23157

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not strictly require dirty metadata threshold for metadata writepages BUG There is an internal report that over 1000 processes are waiting at the ioscheduletimeout of balancedirtypages, causing a system hang and trigger...