In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
xprtrdma: Sanitize the reply credit grant after parsing<\/p>\n
The out_norqst exit in rpcrdma_reply_handler() branches away before
\nthe credit clamp, so a reply that matches no pending request reaches
\nout_post carrying the raw credit value parsed from the wire.
\nrpcrdma_post_recvs() does not bound its @needed argument: the refill
\nloop allocates and chains Receive WRs until the count is satisfied or
\nallocation fails. A peer that sends a well-formed reply carrying an
\nunknown XID and an inflated credit grant therefore drives rep
\nallocation and Receive posting past re_max_requests on every such
\nreply.<\/p>\n
Move the clamp to immediately after the credit field is parsed,
\nahead of the first branch that can reach out_post, so every later
\nconsumer sees a sanitized value. The cwnd update stays on the
\nmatched-request path.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
xprtrdma: Sanitize the reply credit grant after parsing<\/p>\n
The out_norqst exit in rpcrdma_reply_handler() branches away before
\nthe cr<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-7131","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/7131","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=7131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}