CVE-2026-46248

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> wifi: ath12k: clear stale link mapping of ahvif-&gt;links_map<br /> <br /> When an arvif is initialized in non-AP STA mode but MLO connection<br /> preparation fails before the arvif is created<br /> (arvif-&gt;is_created remains false), the error path attempts to delete all<br /> links. However, link deletion only executes when arvif-&gt;is_created is true.<br /> As a result, ahvif retains a stale entry of arvif that is initialized but<br /> not created.<br /> <br /> When a new arvif is initialized with the same link id, this stale mapping<br /> triggers the following WARN_ON.<br /> <br /> WARNING: drivers/net/wireless/ath/ath12k/mac.c:4271 at ath12k_mac_op_change_vif_links+0x140/0x180 [ath12k], CPU#3: wpa_supplicant/275<br /> <br /> Call trace:<br /> ath12k_mac_op_change_vif_links+0x140/0x180 [ath12k] (P)<br /> drv_change_vif_links+0xbc/0x1a4 [mac80211]<br /> ieee80211_vif_update_links+0x54c/0x6a0 [mac80211]<br /> ieee80211_vif_set_links+0x40/0x70 [mac80211]<br /> ieee80211_prep_connection+0x84/0x450 [mac80211]<br /> ieee80211_mgd_auth+0x200/0x480 [mac80211]<br /> ieee80211_auth+0x14/0x20 [mac80211]<br /> cfg80211_mlme_auth+0x90/0xf0 [cfg80211]<br /> nl80211_authenticate+0x32c/0x380 [cfg80211]<br /> genl_family_rcv_msg_doit+0xc8/0x134<br /> <br /> Fix this issue by unassigning the link vif and clearing ahvif-&gt;links_map<br /> if arvif is only initialized but not created.<br /> <br /> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.5-01651-QCAHKSWPL_SILICONZ-1