In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
RDMA\/rxe: Copy WQE to local buffer in non-SRQ receive path<\/p>\n
For non-SRQ QPs, the responder reads WQE fields directly from the
\nshared queue buffer mapped into userspace. This allows a malicious
\nuser to modify fields like num_sge or sge entries while the kernel
\nis processing the WQE, leading to out-of-bounds reads in
\nrxe_resp_check_length() and copy_data().<\/p>\n
Introduce get_recv_wqe() that validates num_sge and copies the WQE
\nto a kernel-local buffer before processing, matching the approach
\nalready used for SRQ WQEs in get_srq_wqe(). The srq_wqe buffer is
\nreused since SRQ and non-SRQ paths are mutually exclusive per QP.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
RDMA\/rxe: Copy WQE to local buffer in non-SRQ receive path<\/p>\n
For non-SRQ QPs, the responder reads WQE fields directly from the
\nshare<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-7328","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/7328","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=7328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}