# CVE-2026-46248: linux: In the Linux kernel, the following vulnerability has been resolved:  wifi: ath12k: clear stale link mapping of ahvif-...

CVE-2026-46248 is fixed in linux on 1 platform by DEBIAN-CVE-2026-46248 (version 6.18.14-1), released June 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-46248
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0012
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 3, 2026

## 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

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.18.14-1 | [DEBIAN-CVE-2026-46248](https://patchblox.com/security/data/fix/linux/debian-cve-2026-46248.md) | Jun 24, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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