{"id":80795,"date":"2026-06-19T18:13:33","date_gmt":"2026-06-19T14:43:33","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-52909-ip6_vti-set-netns_immutable-on-the-fallback-device\/"},"modified":"2026-06-19T18:13:33","modified_gmt":"2026-06-19T14:43:33","slug":"cve-2026-52909-ip6_vti-set-netns_immutable-on-the-fallback-device","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-52909-ip6_vti-set-netns_immutable-on-the-fallback-device\/","title":{"rendered":"CVE-2026-52909 &#8211; ip6_vti: set netns_immutable on the fallback device."},"content":{"rendered":"<p>CVE ID :CVE-2026-52909<\/p>\n<p>  Published : June 19, 2026, 2:43 p.m. | 59\u00a0minutes ago<\/p>\n<p>  Description :In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ip6_vti: set netns_immutable on the fallback device.<\/p>\n<p>john1988 and Noam Rathaus reported that vti6_init_net() does not set the<br \/>\nnetns_immutable flag on the per-netns fallback tunnel device (ip6_vti0).<\/p>\n<p>Other similar tunnel drivers (like ip6_tunnel, sit, ip6_gre, and ip_tunnel)<br \/>\ncorrectly set this flag during their fallback device initialization to<br \/>\nprevent them from being moved to another network namespace.<\/p>\n<p>  Severity: 0.0 | NA<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-52909 Published : June 19, 2026, 2:43 p.m. | 59\u00a0minutes ago Description :In the Linux kernel, the following vulnerability has been resolved: ip6_vti: set netns_immutable on the fallback device. john1988 and Noam Rathaus reported that vti6_init_net() does not set the netns_immutable flag on the per-netns fallback tunnel device (ip6_vti0). Other similar tunnel drivers &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-80795","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/80795","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=80795"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/80795\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=80795"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=80795"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=80795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}