{"id":25715,"date":"2026-09-18T04:31:46","date_gmt":"2026-09-17T20:31:46","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90306"},"modified":"2026-09-18T04:31:46","modified_gmt":"2026-09-17T20:31:46","slug":"cve-2026-90306","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90306","title":{"rendered":"CVE-2026-90306 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nARM: 9481\/2: breakpoi"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ARM: 9481\/2: breakpoint: CFI breakpoints only on demand<\/p>\n<p>This removes the stub hw_breakpoint_cfi_handler() from ARM, making<br \/>\nit not steal breakpoint type 0x03 (ARM_ENTRY_CFI_BREAKPOINT) unless<br \/>\nCFI is actively used in the kernel.<\/p>\n<p>When not instrumenting with CFI, or when a breakpoint is issued in<br \/>\nuserspace, we fall through to return 1 from hw_breakpoint_pending()<br \/>\n&#8220;unhandled fault&#8221; so userspace can make use of this breakpoint.<\/p>\n<p>Tested with LKDTM and this command line:<br \/>\necho CFI_FORWARD_PROTO &gt; \/sys\/kernel\/debug\/provoke-crash\/DIRECT<br \/>\nstill works as expected.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>ARM: 9481\/2: breakpoint: CFI breakpoints only on demand<\/p>\n<p>This removes the stub hw_breakpoint_cfi_handler() from ARM, making<br \/>\nit not <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25715","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25715","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=25715"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25715"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}