{"id":244060,"date":"2026-05-11T20:48:00","date_gmt":"2026-05-12T00:48:00","guid":{"rendered":"https:\/\/news-you-need.com\/index.php\/2026\/05\/11\/linux-kernel-maintainers-suggest-a-kill-switch-to-protect-systems-until-a-zero-day-vulnerability-is-patched\/"},"modified":"2026-05-12T00:20:07","modified_gmt":"2026-05-12T04:20:07","slug":"linux-kernel-maintainers-suggest-a-kill-switch-to-protect-systems-until-a-zero-day-vulnerability-is-patched","status":"publish","type":"post","link":"https:\/\/news-you-need.com\/index.php\/2026\/05\/11\/linux-kernel-maintainers-suggest-a-kill-switch-to-protect-systems-until-a-zero-day-vulnerability-is-patched\/","title":{"rendered":"Linux kernel maintainers suggest a \u2018kill switch\u2019 to protect systems until a zero-day vulnerability is patched"},"content":{"rendered":"<p><a href=\"https:\/\/www.csoonline.com\/article\/4169659\/linux-kernel-maintainers-suggest-a-kill-switch-to-protect-systems-until-a-zero-day-vulnerability-is-patched.html\">Linux kernel maintainers suggest a \u2018kill switch\u2019 to protect systems until a zero-day vulnerability is patched<\/a><\/p>\n<p><a href=\"https:\/\/www.csoonline.com\/article\/4169659\/linux-kernel-maintainers-suggest-a-kill-switch-to-protect-systems-until-a-zero-day-vulnerability-is-patched.html\">https:\/\/www.csoonline.com\/article\/4169659\/linux-kernel-maintainers-suggest-a-kill-switch-to-protect-systems-until-a-zero-day-vulnerability-is-patched.html<\/a><\/p>\n<p>Publish Date: <a href=\"publish_date]\">2026-05-11 20:48:00<\/a><\/p>\n<p>Source Domain: <a href=\"www.csoonline.com\">www.csoonline.com<\/a><\/p>\n<p>As he pointed out in a recent post, when a vulnerability is found, \u201cfleets stay exposed until a patched kernel is built, distributed and rebooted into. For many such issues, the simplest mitigation is to stop calling the buggy function.\u201d In his post, Levin and a colleague also provided a proposed version of a kernel kill switch.<\/p>\n<p>\u201cFor most users,\u201d Levin pointed out, \u201cthe cost of \u2018this socket family stops working for the day\u2019 is much smaller than the cost of running a known vulnerable kernel until the fix lands.\u201d<\/p>\n<p>The proposal comes at a time when several high severity Linux vulnerabilities have been discovered, including Copy Fail (CVE-2026-31431), a logic bug\u00a0which lets users easily obtain root access,\u00a0and Dirty Frag, which abuses weaknesses in how the Linux kernel handles fragmented memory pages. The Dirty Frag attack combines two separate vulnerabilities affecting the Linux IPsec Encapsulating Security Payload (ESP) subsystem (CVE-2026-43284) and the RxRPC networking protocol (CVE-2026-43500).<\/p>\n<h2 class=\"wp-block-heading\" id=\"security-forum-users-opposed\">Security forum users opposed<\/h2>\n<p>The proposal has set off a furious debate among infosec pros.\u00a0For example, in the r\/cybersecurity Reddit forum, it\u2019s been called a \u201cterrible idea,\u201d \u201cridiculous,\u201d \u201cabsolutely terrifying,\u201d and \u201cjust too risky.\u201d<\/p>\n<p><a href=\"https:\/\/www.csoonline.com\/article\/4169659\/linux-kernel-maintainers-suggest-a-kill-switch-to-protect-systems-until-a-zero-day-vulnerability-is-patched.html\">Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux kernel maintainers suggest a \u2018kill switch\u2019 to protect systems until a zero-day vulnerability is&#8230;<\/p>\n","protected":false},"author":1,"featured_media":244062,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/www.csoonline.com\/wp-content\/uploads\/2026\/05\/4169659-0-45057000-1778556196-linux-code-binary-100938204-orig-100942778-orig-100962423-orig.jpg?quality=50&strip=all&w=1024","fifu_image_alt":"","footnotes":""},"categories":[48],"tags":[90,71,57,27],"class_list":["post-244060","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux","tag-cve","tag-linux","tag-security","tag-vulnerability"],"_links":{"self":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/244060"}],"collection":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=244060"}],"version-history":[{"count":1,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/244060\/revisions"}],"predecessor-version":[{"id":244065,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/244060\/revisions\/244065"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media\/244062"}],"wp:attachment":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=244060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=244060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=244060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}