NotCVE-2026-0010

Summary Vulnerability: Unauthenticated IPC Local Privilege Escalation to SYSTEM via Barrier Daemon TCP Port 24801 Vendor: debauchee Barrier project Product: Barrier 2.4.0 final release, 2021-11-01 CWE: CWE-306: Missing Authentication for Critical Function Description Barrier's Windows service...

CyberMeowfia

Website: nebusec.ai · Twitter @nebusecurity · Bug list 885+ IonStack followup, follow https://github.com/NebuSec/CyberMeowfia/issues/44 Latest research IonStack part II : GhostLock, a stack-UAF that has existed in ALL Linux distributions for 15 years Linux Kernel 📖 Writeup · 🐦 Twitter Longinus : ...

CVE-2026-87491-and-CVE-2026-85046-the-bagel-fell-off-the-counter

CVE-2026-85046 + CVE-2026-87491 Was doing a ton of reading over at https://github.com/Serotav/Writeups. Decided to combine 85046 with 87491 and bake in some WASM at the same time. Went and re-did a stage1.js for an eventual ubuntu LPE I'm cooking. The basics: Confuse packed object and integer...

CVE-2025-43529

CVE-2025-43529 TL; DR Apple recently shipped iOS 26.2 and iPadOS 26.2, along with a security advisory that includes fixes for WebKit vulnerabilities. One bug in the DFG JIT compiler CVE-2025-43529 stood out, so I decided to dig into it. The JIT compiler correctly recognized that a Phi node where...

CVE-2026-98507 mm/rmap: fix missing barrier between anon_vma init and vma->anon_vma publish

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: fix missing barrier between anonvma init and vma-anonvma publish On arm64 server, we find that a task trying to grab the anonvma lock triggers hungtask. INFO: task main:2354726 blocked for more than 120 seconds. Tainted:...

CVE-2026-98507 mm/rmap: fix missing barrier between anon_vma init and vma->anon_vma publish

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: fix missing barrier between anonvma init and vma-anonvma publish On arm64 server, we find that a task trying to grab the anonvma lock triggers hungtask. INFO: task main:2354726 blocked for more than 120 seconds. Tainted:...

CVE-2026-98507

The Linux kernel contains a memory management flaw in the mm/rmap subsystem due to a missing memory barrier during the initialization and publication of anon_vma objects. Specifically, in __anon_vma_prepare(), the store to anon_vma->root and the publication to vma->anon_vma can be reordered...

Linux Kernel Security Vulnerabilities

The Linux kernel version 2.6.36 has a security vulnerability. This vulnerability stems from the lack of a memory barrier between the anonvma initialization and the vma-anonvma release. This may lead to the reuse of anonvma after its root is released, causing abnormal lock states and task suspensi...

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: NFSv4/pNFS: Fixed a race condition related to waking up the NFSLAYOUTDRAIN task. We identified several systems where tasks were stuck in a writeback state, waiting for the same page lock. Additionally, one task was waiting for th...

CVE-2026-93519

A flaw was found in xorg-x11-server. The server writes pointer barrier events into a fixed-size buffer without properly validating boundaries. An authenticated client can trigger this issue by configuring excessive pointer barriers and generating cursor motion events, causing a buffer overflow...

UBUNTU-CVE-2026-93519

XFixes Pointer Barrier Event List Buffer Overflow...

CVE-2026-93519

XFixes Pointer Barrier Event List Buffer Overflow...

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

In the Linux kernel, the following vulnerability has been resolved: dma-buf: A memory barrier should be inserted before updating numfences. smpstoremb inserts a memory barrier after storing data. This differs from what the comment originally intended; a null pointer dereferencing can occur if the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfs/fscache: A memory barrier was added for the FSCACHEVOLUME CREATING operation. In the fscachecreatevolume function, there is a missing memory barrier between the bit-clearing operation and the wake-up operation. This may lea...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: net/smc: Fixed an illegal access to rmbdesc during SMC-D connection dumping. A crash was detected when dumping SMC-D connections. This issue can be reproduced by performing the following steps: 1. Run the nginx/wrk test: smcrun...

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: mm/hugememory: The issue of “folio not being locked” in softleaftofolio has been fixed. On the arm64 server, we found that the “folio” data obtained from migration entries is not properly locked in softleaftofolio. This issue...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: coresight: tmc-etf: Fixed a global-out-of-bounds issue in tmcupdateetfbuffer. The commit 6f755e85c332 “coresight: Add helper for inserting synchronization packets” removed the trailing \0 from the barrierpkt array and updated the...

SUSE CVE-2026-98161

In the Linux kernel, the following vulnerability has been resolved: nvdimm: pmem: keep PREFLUSH before data writes pmemsubmitbio records a REQPREFLUSH error, but continues to copy the bio data and can later overwrite the error with a successful REQFUA flush. That lets data writes run after a fail...

SUSE CVE-2026-93229

In the Linux kernel, the following vulnerability has been resolved: nfsd: add missing read barrier to rpcstatusget dumpit seqcount retry The hand-rolled seqcount-like protocol in nfsdnlrpcstatusgetdumpit is missing a read memory barrier smprmb before its second counter check. The standard kernel...

SUSE CVE-2026-93798

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix reloc root cleanup in mergerelocroots If the root we got has zero root refs in its root item, we are resetting the root's -relocroot without using barriers like we do everywhere else. Sashiko complained about this whil...