{"id":25817,"date":"2026-09-18T04:31:56","date_gmt":"2026-09-17T20:31:56","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90408"},"modified":"2026-09-18T04:31:56","modified_gmt":"2026-09-17T20:31:56","slug":"cve-2026-90408","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90408","title":{"rendered":"CVE-2026-90408 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix ove"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>wifi: ath12k: fix overreads in ath12k_wmi_process_csa_switch_count_event()<\/p>\n<p>There is no policy entry for WMI_TAG_PDEV_CSA_SWITCH_COUNT_STATUS_EVENT, so<br \/>\nthe parse infrastructure does not enforce a minimum length for the event<br \/>\nstruct. Additionally, the num_vdevs field is taken directly from firmware<br \/>\nand used as a loop bound over the vdev_ids array without checking that it<br \/>\nfits within the TLV payload. Either condition can cause an out-of-bounds<br \/>\nread.<\/p>\n<p>Add a TLV policy entry for WMI_TAG_PDEV_CSA_SWITCH_COUNT_STATUS_EVENT so<br \/>\nthe parse infrastructure enforces a minimum length for the fixed-size event<br \/>\nstruct. Add a helper ath12k_wmi_tlv_data_len() to recover the payload<br \/>\nlength of a parsed TLV from the header preceding its data pointer. Use it<br \/>\nin ath12k_wmi_process_csa_switch_count_event() to bound num_vdevs before<br \/>\nthe loop.<\/p>\n<p>Compile tested only.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>wifi: ath12k: fix overreads in ath12k_wmi_process_csa_switch_count_event()<\/p>\n<p>There is no policy entry for WMI_TAG_PDEV_CSA_SWITCH_CO<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25817","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25817","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=25817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}