In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
printk: Fix possible console use-after-free<\/p>\n
When emitting a record via legacy printing, it is possible that a handover
\nto another legacy printing context occurs. When a context has performed a
\nhandover, the console SRCU read lock is released and the pointer to the
\nconsole struct might now be invalid. Therefore, after calling
\nnbcon_legacy_emit_next_record() or console_emit_next_record(), it is
\nnecessary to check if a handover occurred _before_ further @con usage.<\/p>\n
Sashiko pointed out that console_flush_one_record() was not doing this.<\/p>\n
In console_flush_one_record(), after emitting a record, move the further
\nusage of @con after the handover check.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
printk: Fix possible console use-after-free<\/p>\n
When emitting a record via legacy printing, it is possible that a handover
\nto another <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25991","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25991","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=25991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}