In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
enic: fix tx_hang_reset use-after-free on device removal<\/p>\n
enic_remove() cancels the reset and change_mtu_work items but does not
\ncancel tx_hang_reset. A TX timeout that fires while the device is being
\nremoved can schedule enic_tx_hang_reset() so that it runs after
\nfree_netdev(), resulting in a use-after-free.<\/p>\n
cancel_work_sync() alone is not sufficient here: the still-live watchdog
\nand notify paths can re-schedule these work items in the window between
\nthe cancel and unregister_netdev(). Use disable_work_sync(), which
\ncancels the work and blocks any subsequent schedule_work() from
\nrequeuing it, and apply it to the reset and change_mtu_work items as
\nwell so the same requeue race is closed for all teardown work.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
enic: fix tx_hang_reset use-after-free on device removal<\/p>\n
enic_remove() cancels the reset and change_mtu_work items but does not
\nca<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-11289","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/11289","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=11289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}