{"id":14988,"date":"2026-09-04T19:02:20","date_gmt":"2026-09-04T11:02:20","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63976"},"modified":"2026-09-04T19:02:20","modified_gmt":"2026-09-04T11:02:20","slug":"cve-2026-63976","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63976","title":{"rendered":"CVE-2026-63976 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: l2cap: cle"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>Bluetooth: l2cap: clear chan-&gt;ident on ECRED reconfiguration success<\/p>\n<p>l2cap_ecred_reconf_rsp() returns early on success without clearing<br \/>\nchan-&gt;ident. Every other L2CAP response handler (l2cap_ecred_conn_rsp,<br \/>\nl2cap_le_connect_rsp, l2cap_config_rsp) clears chan-&gt;ident after a<br \/>\nsuccessful transaction to prevent the channel from matching subsequent<br \/>\nresponses with the recycled ident value.<\/p>\n<p>A remote attacker that completed a reconfiguration as the peer can<br \/>\nreplay a failure response with the stale ident, causing the kernel to<br \/>\nmatch and destroy the already-established channel via<br \/>\nl2cap_chan_del(chan, ECONNRESET).<\/p>\n<p>Clear chan-&gt;ident for all matching channels on success, and harden the<br \/>\nfailure path by using l2cap_chan_hold_unless_zero() consistent with<br \/>\nother L2CAP handlers (l2cap_le_command_rej, __l2cap_get_chan_by_ident).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>Bluetooth: l2cap: clear chan-&gt;ident on ECRED reconfiguration success<\/p>\n<p>l2cap_ecred_reconf_rsp() returns early on success without cle<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14988","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14988","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=14988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}