In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
RDMA\/mana_ib: drain QP references after partial table insertion<\/p>\n
mana_table_store_ud_qp() publishes a QP at its send-queue id before
\ninserting the receive-queue id, dropping the XArray lock between the two
\nxa_insert_irq() calls. A concurrent completion handler can look up the QP
\nand take a transient reference. When the second insertion fails, the
\nrollback erased only the send-queue entry and returned, leaving both the
\ninitial table reference and the transient reference outstanding while RDMA
\ncore frees the QP, causing a use-after-free.<\/p>\n
Drain the reference as normal destruction does: drop the initial reference
\nand wait for qp->free, releasing the QP only after every concurrent lookup
\nreturns its reference.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
RDMA\/mana_ib: drain QP references after partial table insertion<\/p>\n
mana_table_store_ud_qp() publishes a QP at its send-queue id befor<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25882","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25882","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=25882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}