In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
thunderbolt: Fix domain reference leak when DPRX read is canceled<\/p>\n
tb_tunnel_one_dp() takes a domain reference which is only dropped once
\ntb_dp_tunnel_active() has run on the work queue. If that work is
\ncancelled that reference is leaked. Since
\ncommit f5cc545f5969 (“thunderbolt: Wait for tb_domain_release() to
\ncomplete when driver is removed”) instead of just leaking memory this
\nnow also blocks in the completion wait forever when unbinding the
\ndriver.<\/p>\n
This can be triggered whenever a DP tunnel is torn down before the DPRX
\nread has completed, e.g. by unplugging within the timeout, and then
\nunbinding the driver.<\/p>\n
That reference only exists to keep the domain around while the DPRX work
\nis scheduled so let the work itself own it: take it in tb_dp_dprx_start()
\nand drop it in both places that end the work. Get\/put are then paired
\ninside the same file and it doesn’t matter anymore if the callback ever
\nruns.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
thunderbolt: Fix domain reference leak when DPRX read is canceled<\/p>\n
tb_tunnel_one_dp() takes a domain reference which is only droppe<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-41162","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/41162","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=41162"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=41162"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=41162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}