Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: clear stale link mapping of ahvif->links_map When an arvif is initialized in non-AP STA mode but MLO connection preparation fails before the arvif is created (arvif->is_created remains false), the error path attempts to delete all links. However, link deletion only executes when arvif->is_created is true. As a result, ahvif retains a stale entry of arvif that is initialized but not created. When a new arvif is initialized with the same link id, this stale mapping triggers the following WARN_ON. WARNING: drivers/net/wireless/ath/ath12k/mac.c:4271 at ath12k_mac_op_change_vif_links+0x140/0x180 [ath12k], CPU#3: wpa_supplicant/275 Call trace: ath12k_mac_op_change_vif_links+0x140/0x180 [ath12k] (P) drv_change_vif_links+0xbc/0x1a4 [mac80211] ieee80211_vif_update_links+0x54c/0x6a0 [mac80211] ieee80211_vif_set_links+0x40/0x70 [mac80211] ieee80211_prep_connection+0x84/0x450 [mac80211] ieee80211_mgd_auth+0x200/0x480 [mac80211] ieee80211_auth+0x14/0x20 [mac80211] cfg80211_mlme_auth+0x90/0xf0 [cfg80211] nl80211_authenticate+0x32c/0x380 [cfg80211] genl_family_rcv_msg_doit+0xc8/0x134 Fix this issue by unassigning the link vif and clearing ahvif->links_map if arvif is only initialized but not created. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.5-01651-QCAHKSWPL_SILICONZ-1
Mitigation
Minimal update. May introduce new vulnerabilities or breaking changes.
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 debian 14 | | =6.12.38-1 || =6.12.41-1 || =6.12.43-1 || =6.12.43-1~bpo12+1 || =6.12.48-1 || =6.12.57-1 || =6.12.57-1~bpo12+1 || =6.12.63-1 || =6.12.63-1~bpo12+1 || =6.12.69-1 || =6.12.69-1~bpo12+1 || =6.12.73-1 || =6.12.73-1~bpo12+1 || =6.12.74-1 || =6.12.74-2 || =6.12.74-2~bpo12+1 || =6.12.85-1 || =6.12.85-1~bpo12+1 || =6.12.86-1 || =6.12.86-1~bpo12+1 || =6.12.88-1 || =6.12.88-1~bpo12+1 || =6.12.90-1 || =6.12.90-1~bpo12+1 || =6.12.90-2 || =6.12.90-2~bpo12+1 || =6.13.10-1~exp1 || =6.13.11-1~exp1 || =6.13.2-1~exp1 || =6.13.3-1~exp1 || =6.13.4-1~exp1 || =6.13.5-1~exp1 || =6.13.6-1~exp1 || =6.13.7-1~exp1 || =6.13.8-1~exp1 || =6.13.9-1~exp1 || =6.13~rc6-1~exp1 || =6.13~rc7-1~exp1 || =6.14.3-1~exp1 || =6.14.5-1~exp1 || =6.14.6-1~exp1 || =6.15-1~exp1 || =6.15.1-1~exp1 || =6.15.2-1~exp1 || =6.15.3-1~exp1 || =6.15.4-1~exp1 || =6.15.5-1~exp1 || =6.15.6-1~exp1 || =6.15~rc7-1~exp1 || =6.16-1~exp1 || =6.16.1-1~exp1 || =6.16.10-1 || =6.16.11-1 || =6.16.12-1 || =6.16.12-1~bpo13+1 || =6.16.12-2 || =6.16.3-1 || =6.16.3-1~bpo13+1 || =6.16.5-1 || =6.16.6-1 || =6.16.7-1 || =6.16.8-1 || =6.16.9-1 || =6.16~rc7-1~exp1 || =6.17.10-1 || =6.17.11-1 || =6.17.12-1 || =6.17.13-1 || =6.17.13-1~bpo13+1 || =6.17.2-1~exp1 || =6.17.5-1~exp1 || =6.17.6-1 || =6.17.7-1 || =6.17.7-2 || =6.17.8-1 || =6.17.8-1~bpo13+1 || =6.17.9-1 || =6.18.1-1~exp1 || =6.18.10-1 || =6.18.12-1 || =6.18.12-1~bpo13+1 || =6.18.13-1 || =6.18.2-1~exp1 || =6.18.3-1 || =6.18.5-1 || =6.18.5-1~bpo13+1 || =6.18.8-1 || =6.18.9-1 || =6.18.9-1~bpo13+1 || =6.18~rc4-1~exp1 || =6.18~rc4-1~exp2 || =6.18~rc5-1~exp1 || =6.18~rc6-1~exp1 || =6.18~rc7-1~exp1 || >=0 <6.18.14-1 | 6.18.14-1 |
 rpm rhel10 | | - | - |
rpm rhel9 | | - | - |
rpm rhel9 | | - | - |
