What’s Vulnerable › Vulnerabilities

CVE-2026-90368: wifi: mt76: mt7915: unwind state on add_interface failure

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: unwind state on add_interface failure When mt76_wcid_alloc() fails, mt7915_add_interface() returned without clearing the vif_mask/omac_mask bits it had already set, without removing the firmware dev info added earlier, and without clearing a monitor_vif pointer to the vif mac80211 is about to free. mac80211 does not call remove_interface() for a failed add, so the indices and firmware dev entry leaked permanently and testmode could dereference the stale monitor_vif. Add a proper error unwind.

Affected products

• Linux: 5.19 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/09f3dced52c22d9b20f356b01986c5ea0f446cea
• https://git.kernel.org/stable/c/218fdf0fcb796b8d281dbdd4a6144c5a8fc7fd0f
• https://git.kernel.org/stable/c/2fb6480c52f611338e1b0abe5e6219be1fc9ab75
• https://git.kernel.org/stable/c/507eddb8175a67df5086354b92d6a4fd7f6f1f96
• https://git.kernel.org/stable/c/7198d8fcfdd3ebef3dfbb6073267a053b09f6a05
• https://git.kernel.org/stable/c/71bf9de2ab3fb2c54bedb0b4c9b468d2e1d55280

Get alerted when CVE-2026-90368 or the next vulnerability affects your stack