CVE-2026-64600-Refluxfs-PoC

RefluXFS CVE-2026-64600 PoC This repo contains a PoC of the recently discovered race condition vulnerability affecting COW on XFS reported by the excellent Qualys Security Team. 1 2 PoC info Handwritten based off of the excellent analysis in the Qualys advisory. Rewrites the first 4KB of the...

CVE-2025-6019

CVE-2025-6019 Proof of Concept PoC This repository contains a Proof of Concept PoC script for CVE-2025-6019 , a Local Privilege Escalation LPE vulnerability in libblockdev and udisks. The script creates an XFS filesystem image with an SUID bash binary and exploits the vulnerability to mount it...

CVE-2025-6018-CVE-2025-6019-Privilege-Escalation-Exploit

CVE-2025-6018 + CVE-2025-6019 Privilege Escalation Guide 📋 Quick Exploitation Steps Step 1: Prepare XFS Image Local Machine Create 300MB XFS image dd if=/dev/zero of=xfs.image bs=1M count=300 mkfs.xfs -f xfs.image Mount and install SUID bash mkdir mnt sudo mount -t xfs xfs.image mnt sudo cp...

kernel: xfs: fix exchange-range reflink flag clearing issue with INO1_WRITTEN

A flaw was found in the Linux kernel's XFS filesystem. When performing file range exchanges with the XFSEXCHMAPSINO1WRITTEN flag set, the reflink flag can be prematurely cleared from an inode that still manages shared written data. This can lead to data corruption between files that share data...

kernel: xfs: bounds-check buffer log item's dirty bitmap

A flaw was found in the Linux kernel's XFS filesystem. A local attacker, by mounting a specially crafted XFS image, could trigger an out-of-bounds write during log recovery. This vulnerability allows for kernel heap corruption, which could lead to a denial of service or potentially arbitrary code...

CVE-2025-6019-udisks-lpe-no-image

CVE-2025-6019-udisks-lpe-no-image Script-only privilege escalation chain using CVE-2025-6019 and UDisks2 no filesystem image included. Credits, Context & Exploit Chain This repository does not introduce a new vulnerability. The privilege-escalation technique implemented here is fully based on...

CVE-2025-6018-and-CVE-2025-6019-Privilege-Escalation

CVE-2025-6018-and-CVE-2025-6019-Privilege-Escalation This is just a quick note on how to exploit these vulnerabilities to get root. Start by utilizing this tool on the attacker machine: https://raw.githubusercontent.com/ibrahmsql/CVE-2025-6018/refs/heads/main/CVE-202 You should now have a shell a...

kernel: xfs: bounds-check buffer log item's dirty bitmap

A flaw was found in the Linux kernel's XFS filesystem. A local attacker, by mounting a specially crafted XFS image, could trigger an out-of-bounds write during log recovery. This vulnerability allows for kernel heap corruption, which could lead to a denial of service or potentially arbitrary code...

kernel: xfs: bounds-check buffer log item's dirty bitmap

A flaw was found in the Linux kernel's XFS filesystem. A local attacker, by mounting a specially crafted XFS image, could trigger an out-of-bounds write during log recovery. This vulnerability allows for kernel heap corruption, which could lead to a denial of service or potentially arbitrary code...

CVE-2026-80820

A flaw was found in the Linux kernel's XFS filesystem. A local attacker could trigger a livelock condition during an online file system check fsck if an unlinked inode list contains a loop. This vulnerability could lead to a Denial of Service DoS, making the system unresponsive...

CVE-2025-6019_Exploit

CVE-2025-6019Exploit Step 1: Run 1.sh on a Linux device to build xfs.image Step 2: Transfer xfs.image to the target device and execute 2.sh. Success is indicated as shown below: neko@aosc-neko205 tmp $ bash 2.sh 当前用户: neko uid=1000neko gid=1001neko...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: xfs: Save the ailp pointer before releasing the AIL lock during push callbacks. In xfs inodeitempush and xfsqmdquotlogitempush, the AIL lock is released to perform buffer I/O operations. Once the cluster buffer no longer protects...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: filemap: Avoid truncating the 64-bit offset to 32 bits. On 32-bit kernels, the folioseekholedata function inadvertently truncated a 64-bit value to 32 bits, which could lead to an infinite loop when writing to an xfs filesystem...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: iomap: Avoid truncating the 64-bit offset to 32 bits. On 32-bit kernels, iomapwritedelallocscan inadvertently used a 32-bit position due to folionextindex returning a unsigned long value. This could lead to an infinite loop when...

Astra Linux – Vulnerability in Linux, Linux 5.10

A vulnerability was discovered in the fs/inode.c:inodeinitowner function logic of the Linux kernel. This vulnerability allows local users to create files for the XFS file system with unintended group ownership, along with group execution and SGID permission bits set. This occurs in a scenario whe...

Astra Linux – Vulnerability in Linux, Linux 5.10

A data leak flaw was discovered in the way of the XFSIOCALLOCSP IOCTL in the XFS filesystem, which allows for an increase in file sizes when the size is unaligned. A local attacker could exploit this flaw to leak data from the XFS filesystem that would otherwise be inaccessible to them...

Linux Distros Unpatched Vulnerability : CVE-2026-80804

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfs: restore nofs context unconditionally in xfstransroll When xfstranscommit fails in xfstransroll, the NOFS context is cleared but only restored in the succe...

SUSE CVE-2026-80804

In the Linux kernel, the following vulnerability has been resolved: xfs: restore nofs context unconditionally in xfstransroll When xfstranscommit fails in xfstransroll, the NOFS context is cleared but only restored in the success path. This leaves the error path without nofs protection, causing a...

SUSE CVE-2026-80805

In the Linux kernel, the following vulnerability has been resolved: xfs: validate attr entry pointer before field access xfsattr3leafverifyentry accesses lentry/rentry fields namelen, valuelen before checking if the entry pointer itself is within bounds. If nameidx is crafted to point near the en...

CVE-2026-80804

In the Linux kernel, the following vulnerability has been resolved: xfs: restore nofs context unconditionally in xfstransroll When xfstranscommit fails in xfstransroll, the NOFS context is cleared but only restored in the success path. This leaves the error path without nofs protection, causing a...