A critical vulnerability in the Linux kernel, identified as CVE-2026-64600 and referred to as RefluXFS. This vulnerability enables an unprivileged local user to gain root access on systems that utilize reflink-enabled XFS filesystems. The flaw resides in the XFS copy-on-write path and has reportedly existed since the release of Linux kernel version 4.1 in 2017. […]

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The Linux kernel security team published approximately 440,440 CVE advisories over 24 hours, reflecting a significant release of vulnerability records linked to fixes already incorporated into the upstream kernel tree. These notices were distributed through the linux-cve-announce mailing list between July 19 and July 20, 2026, and cover a wide range of kernel subsystems, including […]

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A newly published Linux toolkit named Furtex showcases a wide range of concepts related to post-exploitation, persistence, data access, and monitoring evasion. It is built around io_uring, eBPF, BPF maps, and raw system calls. The project includes over 100 tools organized into modules that cover asynchronous I/O operations, BPF inspection and manipulation, EDR evasion techniques, […]

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Linux creator and top-level kernel maintainer Linus Torvalds has made it clear that the Linux kernel project will not adopt an anti-AI stance. He believes that large language models and related tools should be assessed based on their technical value rather than dismissed outright. His comments were part of a discussion on the Linux Media […]

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A newly disclosed Linux kernel vulnerability in the FUSE subsystem allows unprivileged local users to escalate privileges to root by corrupting the page cache and hijacking execution of a SUID binary such as /usr/bin/su on Ubuntu 26.04. Tracked as CVE-2026-31694, the flaw affects the FUSE directory-caching logic. It can be exploited to achieve reliable local […]

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A critical vulnerability in the Linux kernel, known as “GhostLock” (CVE-2026-43499), has been disclosed by researchers at Nebula Security. This vulnerability, which has existed for 15 years, allows for reliable privilege escalation and container escape across nearly all Linux distributions. The issue dates back to Linux kernel version 2.6.39, released in 2011, and remained undetected […]

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