{"id":25850,"date":"2026-09-18T04:31:58","date_gmt":"2026-09-17T20:31:58","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-92481"},"modified":"2026-09-18T04:31:58","modified_gmt":"2026-09-17T20:31:58","slug":"cve-2026-92481","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-92481","title":{"rendered":"CVE-2026-92481 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: mediatek: fr"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>pinctrl: mediatek: free EINT resources on unbind<\/p>\n<p>mtk_eint_do_init() creates an IRQ domain, populates it with a mapping for<br \/>\nevery EINT line and installs a chained handler on the parent interrupt,<br \/>\nbut none of these are ever released. This was harmless while the drivers<br \/>\nwere built-in, but now that they can be built as modules and<br \/>\nunbound\/rmmod&#8217;d it leaves behind a dangling IRQ domain, interrupt mappings<br \/>\nwhose chip data points at freed memory, and a chained handler that keeps<br \/>\nfiring into that freed data.<\/p>\n<p>The plain allocations in mtk_eint_do_init() already use the device-managed<br \/>\ndevm_*() helpers, so tear the remaining resources down the same way:<br \/>\nregister a devm action that detaches the chained handler, waits for any<br \/>\nin-flight handler to finish, disposes of the per-line mappings and removes<br \/>\nthe IRQ domain. This mirrors the device-managed lifecycle adopted for the<br \/>\nGPIO chip and keeps the whole EINT setup self-cleaning on unbind.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>pinctrl: mediatek: free EINT resources on unbind<\/p>\n<p>mtk_eint_do_init() creates an IRQ domain, populates it with a mapping for<br \/>\nevery E<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25850","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25850","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=25850"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25850"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}