In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
netfilter: ipset: Don’t use test_bit() in lockless RCU readers in hash types<\/p>\n
Sashiko pointed out that there are a few lockless RCU readers
\nusing test_bit() which is a relaxed atomic operation and
\nprovides no memory barrier guarantees. Use test_bit_acquire()
\ninstead where the operation may run parallel with add\/del\/gc,
\ni.e. is not one from the next cases<\/p>\n
– protected by region lock
\n– in a set destroy phase
\n– in a new\/temporary set creation phase<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
netfilter: ipset: Don’t use test_bit() in lockless RCU readers in hash types<\/p>\n
Sashiko pointed out that there are a few lockless RCU<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-7095","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/7095","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=7095"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7095"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}