{"id":76052,"date":"2026-01-31T15:46:07","date_gmt":"2026-01-31T12:16:07","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-23039-drm-gud-fix-null-fb-and-crtc-dereferences-on-usb-disconnect\/"},"modified":"2026-01-31T15:46:07","modified_gmt":"2026-01-31T12:16:07","slug":"cve-2026-23039-drm-gud-fix-null-fb-and-crtc-dereferences-on-usb-disconnect","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-23039-drm-gud-fix-null-fb-and-crtc-dereferences-on-usb-disconnect\/","title":{"rendered":"CVE-2026-23039 &#8211; drm\/gud: fix NULL fb and crtc dereferences on USB disconnect"},"content":{"rendered":"<p>CVE ID : CVE-2026-23039<\/p>\n<p>Published :  Jan. 31, 2026, 12:16 p.m. | 57\u00a0minutes ago<\/p>\n<p>Description : In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/gud: fix NULL fb and crtc dereferences on USB disconnect<\/p>\n<p>On disconnect drm_atomic_helper_disable_all() is called which<br \/>\nsets both the fb and crtc for a plane to NULL before invoking a commit.<\/p>\n<p>This causes a kernel oops on every display disconnect.<\/p>\n<p>Add guards for those dereferences.<\/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-2026-23039 Published : Jan. 31, 2026, 12:16 p.m. | 57\u00a0minutes ago Description : In the Linux kernel, the following vulnerability has been resolved: drm\/gud: fix NULL fb and crtc dereferences on USB disconnect On disconnect drm_atomic_helper_disable_all() is called which sets both the fb and crtc for a plane to NULL before invoking &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-76052","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/76052","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=76052"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/76052\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=76052"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=76052"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=76052"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}