{"id":25576,"date":"2026-09-18T04:31:34","date_gmt":"2026-09-17T20:31:34","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90167"},"modified":"2026-09-18T04:31:34","modified_gmt":"2026-09-17T20:31:34","slug":"cve-2026-90167","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90167","title":{"rendered":"CVE-2026-90167 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: serialize oplo"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ksmbd: serialize oplock close with pending break ownership<\/p>\n<p>close may abort an in-flight oplock break while another breaker already<br \/>\nholds an opinfo reference. Releasing pending_break wakes that waiter, but<br \/>\nwithout serializing the close transition with bit acquisition it can become<br \/>\na new break owner through the test_and_set_bit() fast path. It can then<br \/>\noverwrite OPLOCK_CLOSING with OPLOCK_ACK_WAIT and continue a break for<br \/>\na dying opinfo.<\/p>\n<p>Make OPLOCK_CLOSING terminal once the opinfo is removed from the inode<br \/>\nlist. Serialize that transition, pending_break acquisition, and<br \/>\nOPLOCK_ACK_WAIT setup with an opinfo state lock. A breaker which loses<br \/>\nthe race releases its ownership and returns -ENOENT. Explicitly wake<br \/>\npending_break waiters during close so they can observe the terminal state.<\/p>\n<p>Also prevent ACK and timeout paths from replacing OPLOCK_CLOSING with<br \/>\nOPLOCK_STATE_NONE.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ksmbd: serialize oplock close with pending break ownership<\/p>\n<p>close may abort an in-flight oplock break while another breaker already<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25576","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25576","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=25576"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25576"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25576"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}