In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
firmware: arm_scmi: Avoid IDR updates while cleaning channels<\/p>\n
scmi_cleanup_channels() walks the TX\/RX channel IDRs with
\nidr_for_each() to free transport resources and destroy the dedicated
\ntransport devices before calling idr_destroy().<\/p>\n
The destroy callback removed each entry from the same IDR being walked.
\nThat is not needed for this cleanup path, and it is unsafe because
\nidr_for_each() has not advanced its radix-tree iterator while the
\ncallback is running. Removing the current entry from the callback can
\ninvalidate the iterator state. The callback also cannot be protected by
\nrcu_read_lock(), because scmi_device_destroy() may sleep.<\/p>\n
Leave IDR teardown to the following idr_destroy() call and keep the
\ncallback limited to device destruction.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
firmware: arm_scmi: Avoid IDR updates while cleaning channels<\/p>\n
scmi_cleanup_channels() walks the TX\/RX channel IDRs with
\nidr_for_ea<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25945","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25945","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=25945"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25945"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}