In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
sctp: fix addr_wq_timer race in sctp_free_addr_wq()<\/p>\n
sctp_free_addr_wq() previously removed addr_wq_timer using timer_delete()
\nwhile holding addr_wq_lock. However, timer_delete() does not guarantee that
\na currently running timer handler has completed.<\/p>\n
This allows a race with sctp_addr_wq_timeout_handler(), where the handler
\nmay still run after addr_waitq has been freed, acquire addr_wq_lock, and
\naccess freed memory, leading to a use-after-free.<\/p>\n
Fix this by calling timer_shutdown_sync() before taking addr_wq_lock. This
\nguarantees that any in-flight timer handler has finished and prevents the
\ntimer from being re-armed during teardown, making subsequent cleanup safe.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
sctp: fix addr_wq_timer race in sctp_free_addr_wq()<\/p>\n
sctp_free_addr_wq() previously removed addr_wq_timer using timer_delete()
\nwhil<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-7029","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/7029","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=7029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}