In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
net: ibm: emac: mal: fix potential system hang in mal_remove()<\/p>\n
napi_disable() is not idempotent and calling it on an already-disabled
\nor unenabled NAPI context will cause the kernel to spin indefinitely
\nwaiting for the NAPI_STATE_SCHED bit to clear.<\/p>\n
In mal_remove(), napi_disable() is called unconditionally. If no MACs were
\nregistered, NAPI was never enabled. Also, if they were registered but
\nsubsequently unregistered, NAPI was already disabled in
\nmal_unregister_commac(). In either case, calling napi_disable() causes
\nthe kernel to hang upon module removal.<\/p>\n
Fix this by only calling napi_disable() in mal_remove() if the commac list
\nis not empty (which implies NAPI is enabled).<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
net: ibm: emac: mal: fix potential system hang in mal_remove()<\/p>\n
napi_disable() is not idempotent and calling it on an already-disab<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28658","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28658","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=28658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}