Linux kernel: security advisories, deprecations and releases

Monolithic kernel at the core of the Linux operating system.

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What your digest would have held this week

3 items from the last 7 days. Zero sends only the ones that touch your stack.

HIGH NEW THIS WEEK Google Cloud Blog · 30 Oct 2026

GKE Private Service Connect API timeouts from three-layer networking bugs

GKE clusters using Private Service Connect in europe-west experienced intermittent API server timeouts caused by packet reordering, Envoy half-close behavior, and a Linux kernel TCP bug in FIN_WAIT_2 state handling.
CRITICAL NEW THIS WEEK Cloudanix Threat Intelligence · 29 Oct 2026

Linux Kernel Missing Initialization of a Variable Vulnerability

Linux Kernel contains a missing initialization of a variable vulnerability that could allow for unintended modification of page-cache-backed data via failure to preserve the shared-fragment marker during socket buffer coalescing, causing ESP input processing to decrypt shared fragments in place. This vulnerability can be chained with CVE-2026-109618 and CVE-2026-109619 to implant PHP webshells and run commands as root.

CVE-2026-46300

HIGH NEW THIS WEEK ACT BY 1 NOV 2026 endoflife.date · 3 Nov 2026

Linux kernel 7.2 has reached end of life

Linux kernel 7.2 reached end of life on 2026-11-01, as listed by endoflife.date.
MEDIUM ACT BY 31 DEC 2026 endoflife.date · 2 Oct 2026

Linux kernel 5.15 reaches end of life on 2026-12-31

Linux kernel 5.15 reaches end of life on 2026-12-31, as listed by endoflife.date.
MEDIUM ACT BY 31 DEC 2026 endoflife.date · 2 Oct 2026

Linux kernel 5.10 reaches end of life on 2026-12-31

Linux kernel 5.10 reaches end of life on 2026-12-31, as listed by endoflife.date.

INFO endoflife.date · 20 Oct 2026

Linux kernel 7.3 released

Linux kernel 7.3 was released on 2026-10-18.

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