{"id":"CVE-2026-46248","title":"wifi: ath12k: clear stale link mapping of ahvif->links_map","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: clear stale link mapping of ahvif->links_map\n\nWhen an arvif is initialized in non-AP STA mode but MLO connection\npreparation fails before the arvif is cre…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 81e4be30544ee7e8da80e9aae7acd69d3be6d05a < da289440f04c93048d82d293b180f1cacdfee2d9","Linux >= 81e4be30544ee7e8da80e9aae7acd69d3be6d05a < acd8319e834be6790e449701cb6df0f636801977","Linux >= 81e4be30544ee7e8da80e9aae7acd69d3be6d05a < 2c1ba9c2adf0fda96eaaebd8799268a7506a8fc9","Linux 6.15"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T16:12:51.543711Z"},"published":"2026-06-03","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:13:46.283Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-46248","references":[{"url":"https://git.kernel.org/stable/c/da289440f04c93048d82d293b180f1cacdfee2d9"},{"url":"https://git.kernel.org/stable/c/acd8319e834be6790e449701cb6df0f636801977"},{"url":"https://git.kernel.org/stable/c/2c1ba9c2adf0fda96eaaebd8799268a7506a8fc9"}],"tags":["cve.org"],"epss":0.00121,"epssPercentile":0.01932,"ingestedAt":"2026-11-06T16:57:43.321Z","slug":"CVE-2026-46248","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: clear stale link mapping of ahvif->links_map\n\nWhen an arvif is initialized in non-AP STA mode but MLO connection\npreparation fails before the arvif is created\n(arvif->is_created remains false), the error path attempts to delete all\nlinks. However, link deletion only executes when arvif->is_created is true.\nAs a result, ahvif retains a stale entry of arvif that is initialized but\nnot created.\n\nWhen a new arvif is initialized with the same link id, this stale mapping\ntriggers the following WARN_ON.\n\nWARNING: drivers/net/wireless/ath/ath12k/mac.c:4271 at ath12k_mac_op_change_vif_links+0x140/0x180 [ath12k], CPU#3: wpa_supplicant/275\n\nCall trace:\n ath12k_mac_op_change_vif_links+0x140/0x180 [ath12k] (P)\n drv_change_vif_links+0xbc/0x1a4 [mac80211]\n ieee80211_vif_update_links+0x54c/0x6a0 [mac80211]\n ieee80211_vif_set_links+0x40/0x70 [mac80211]\n ieee80211_prep_connection+0x84/0x450 [mac80211]\n ieee80211_mgd_auth+0x200/0x480 [mac80211]\n ieee80211_auth+0x14/0x20 [mac80211]\n cfg80211_mlme_auth+0x90/0xf0 [cfg80211]\n nl80211_authenticate+0x32c/0x380 [cfg80211]\n genl_family_rcv_msg_doit+0xc8/0x134\n\nFix this issue by unassigning the link vif and clearing ahvif->links_map\nif arvif is only initialized but not created.\n\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.5-01651-QCAHKSWPL_SILICONZ-1\n\n## Affected\n\n- `Linux >= 81e4be30544ee7e8da80e9aae7acd69d3be6d05a < da289440f04c93048d82d293b180f1cacdfee2d9`\n- `Linux >= 81e4be30544ee7e8da80e9aae7acd69d3be6d05a < acd8319e834be6790e449701cb6df0f636801977`\n- `Linux >= 81e4be30544ee7e8da80e9aae7acd69d3be6d05a < 2c1ba9c2adf0fda96eaaebd8799268a7506a8fc9`\n- `Linux 6.15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}