CVE-2026-90375: Linux kernel · wifi: mt76: fix non-AQL packet accounting for MLO stations
Source GCVE Database
Not known to be exploited · fixed in fc7fae55255ccbde009232e84b102d2782a69ecf : update Linux kernel when convenient.
Data as of 30 Oct 2026, 18:21 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in fc7fae55255ccbde009232e84b102d2782a69ecf, f94842ee088744a9e4b3b3ce4c91e897c4e72aba, f85f6933cc170155f1c7c2dffdd014965787c71b +3
Exploitation evidence
Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
A fix has been implemented in the Linux kernel to correct the packet accounting logic in the mt76 driver. Users should apply the official kernel updates containing this fix once available. No other mitigation actions are indicated.
Description
A vulnerability in the Linux kernel's mt76 WiFi driver caused incorrect accounting of non-AQL packets for Multi-Link Operation (MLO) stations. This flaw could lead to the transmission scheduler permanently refusing to service a station due to inflated packet counters. The issue was fixed by correcting the packet accounting logic to use the actual wireless client identifier (wcid) used for transmission.
References
- nvd.nist.gov/vuln/detail/CVE-2026-90375 (opens in a new tab)
- git.kernel.org/stable/c/186c957ac3325aefb982567ffdd3654b283688a7 (opens in a new tab)
- git.kernel.org/stable/c/2c321f86846ead00552bc65f73f5b5f1f81d4023 (opens in a new tab)
- git.kernel.org/stable/c/8ae659743ba936b22ecb4620815887728e2820d6 (opens in a new tab)
- git.kernel.org/stable/c/f85f6933cc170155f1c7c2dffdd014965787c71b (opens in a new tab)
- git.kernel.org/stable/c/f94842ee088744a9e4b3b3ce4c91e897c4e72aba (opens in a new tab)
- git.kernel.org/stable/c/fc7fae55255ccbde009232e84b102d2782a69ecf (opens in a new tab)