{"id":64589,"date":"2025-06-06T18:32:15","date_gmt":"2025-06-06T15:02:15","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2025-38002-linux-kernel-io_uring-fdinfo-lock-bypass-vulnerability\/"},"modified":"2025-06-06T18:32:15","modified_gmt":"2025-06-06T15:02:15","slug":"cve-2025-38002-linux-kernel-io_uring-fdinfo-lock-bypass-vulnerability","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2025-38002-linux-kernel-io_uring-fdinfo-lock-bypass-vulnerability\/","title":{"rendered":"CVE-2025-38002 &#8211; Linux Kernel io_uring fdinfo Lock Bypass Vulnerability"},"content":{"rendered":"<p><strong>CVE ID : <\/strong>CVE-2025-38002<br \/>\n<br \/>\n<strong>Published : <\/strong> June 6, 2025, 2:15 p.m. | 29\u00a0minutes ago<br \/>\n<br \/>\n<strong>Description : <\/strong>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>io_uring\/fdinfo: grab ctx-&gt;uring_lock around io_uring_show_fdinfo()<\/p>\n<p>Not everything requires locking in there, which is why the &#8216;has_lock&#8217;<br \/>\nvariable exists. But enough does that it&#8217;s a bit unwieldy to manage.<br \/>\nWrap the whole thing in a -&gt;uring_lock trylock, and just return<br \/>\nwith no output if we fail to grab it. The existing trylock() will<br \/>\nalready have greatly diminished utility\/output for the failure case.<\/p>\n<p>This fixes an issue with reading the SQE fields, if the ring is being<br \/>\nactively resized at the same time.<br \/>\n<br \/>\n<strong>Severity:<\/strong> 0.0 | NA<br \/>\n<br \/>\nVisit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2025-38002 Published : June 6, 2025, 2:15 p.m. | 29\u00a0minutes ago Description : In the Linux kernel, the following vulnerability has been resolved: io_uring\/fdinfo: grab ctx-&gt;uring_lock around io_uring_show_fdinfo() Not everything requires locking in there, which is why the &#8216;has_lock&#8217; variable exists. But enough does that it&#8217;s a bit unwieldy to manage. Wrap &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-64589","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/64589","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=64589"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/64589\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=64589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=64589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=64589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}