{"id":77160,"date":"2026-02-14T20:45:58","date_gmt":"2026-02-14T17:15:58","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-23204-net-sched-cls_u32-use-skb_header_pointer_careful\/"},"modified":"2026-02-14T20:45:58","modified_gmt":"2026-02-14T17:15:58","slug":"cve-2026-23204-net-sched-cls_u32-use-skb_header_pointer_careful","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-23204-net-sched-cls_u32-use-skb_header_pointer_careful\/","title":{"rendered":"CVE-2026-23204 &#8211; net\/sched: cls_u32: use skb_header_pointer_careful()"},"content":{"rendered":"<p>CVE ID : CVE-2026-23204<\/p>\n<p>Published :  Feb. 14, 2026, 5:15 p.m. | 1\u00a0hour, 14\u00a0minutes ago<\/p>\n<p>Description : In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>net\/sched: cls_u32: use skb_header_pointer_careful()<\/p>\n<p>skb_header_pointer() does not fully validate negative @offset values.<\/p>\n<p>Use skb_header_pointer_careful() instead.<\/p>\n<p>GangMin Kim provided a report and a repro fooling u32_classify():<\/p>\n<p>BUG: KASAN: slab-out-of-bounds in u32_classify+0x1180\/0x11b0<br \/>\nnet\/sched\/cls_u32.c:221<\/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-2026-23204 Published : Feb. 14, 2026, 5:15 p.m. | 1\u00a0hour, 14\u00a0minutes ago Description : In the Linux kernel, the following vulnerability has been resolved: net\/sched: cls_u32: use skb_header_pointer_careful() skb_header_pointer() does not fully validate negative @offset values. Use skb_header_pointer_careful() instead. GangMin Kim provided a report and a repro fooling u32_classify(): BUG: KASAN: slab-out-of-bounds &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-77160","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77160","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=77160"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77160\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=77160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=77160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=77160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}