Riskcovery

CVE-2026-53317

wifi: mt76: mt7921: Place upper limit on station AID

State
Published
Severity
Not scored
Published
Jun 26, 2026
Updated
Oct 30, 2026
Reserved
Jun 9, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7921: Place upper limit on station AID

Any station configured with an AID over 20 causes a firmware crash. This situation occurred in our testing using an AP interface on 7922 hardware, with a modified hostapd, sourced from Mediatek's OpenWRT feeds.

In stock hostapd, station AIDs begin counting at 1, and this configuration is prevented with an upper limit on associated stations. However, the modified hostapd began allocation at 65, which caused the firmware to crash. This fix does not allow these AIDs to work, but will prevent the firmware crash.

This crash was only seen on IFTYPE_AP interfaces, and the fix does not appear to have an effect on IFTYPE_STATION behavior.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 5c14a5f944b91371961548b1907802f74a4d2e5c to before 8f2ce0910b25173049910ec9a49304150534afd4Affected
  • 5c14a5f944b91371961548b1907802f74a4d2e5c to before 9d63dd026644fa612a1fd348d5d3ab5d73df7fb8Affected
  • 5c14a5f944b91371961548b1907802f74a4d2e5c to before 6dbe70f9ef14d8ac1c24bf19fd9510978a3ab952Affected
  • 5c14a5f944b91371961548b1907802f74a4d2e5c to before 35835ff71e6e618155578b8e3905597edd5f601cAffected
  • 5c14a5f944b91371961548b1907802f74a4d2e5c to before 1a4b802afe15c5b33b2dcb37a594aba2fa215d52Affected
  • 5c14a5f944b91371961548b1907802f74a4d2e5c to before 4d0bf21e3e20619d51d06c0c36207aabab8b712cAffected
LinuxLinux
  • 5.12Affected
  • before 5.12Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.91 through 6.12.*Not affected
  • 6.18.33 through 6.18.*Not affected
  • 7.0.10 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.