Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: guard link STA in decap offload mt7925_sta_set_decap_offload() iterates over the vif valid_links mask when updating decap offload state for an MLO station. The station may not have a link STA for every valid link of the vif, so mt792x_sta_to_link() can return NULL for a link that belongs to the vif but not to the station. The function currently dereferences mlink before checking whether the link WCID is ready. If mlink is NULL, setting or clearing MT_WCID_FLAG_HDR_TRANS dereferences a NULL pointer. Skip links without a station link before touching mlink->wcid.
References
- https://git.kernel.org/stable/c/1e608cae1ba0b4a600b752efa223fd2be376b143
- https://git.kernel.org/stable/c/96ea44f2269f30364cffa054ee3a87e595bef0d4
- https://git.kernel.org/stable/c/d86883f7e8f03a5b81b4e59f2c0b6c05f79e01fd
- https://git.kernel.org/stable/c/f1ee53e08fdd2906e90c6a6d71e1368fcd52bfc3
FAQ
What is CVE-2026-68311?
CVE-2026-68311 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: guard link STA in decap offload mt7925_sta_set_decap_offload() iterates over the vif valid_links mask when upd...
How severe is CVE-2026-68311?
CVSS scoring is not yet available for CVE-2026-68311. Check NVD for updates.
Is there a patch for CVE-2026-68311?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.