CVE-2026-89523: Linux kernel · wifi: mt76: mt7925: cancel pending mlo_pm_work
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 11 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available that cancels the pending mlo_pm_work in all relevant device teardown and suspend paths. Users should apply the official Linux kernel updates that include this patch. Since this is not a cloud service, remediation depends on applying the updated kernel versions.
Description
A vulnerability in the Linux kernel's mt7925 WiFi driver allows pending work to run after the device is reset, suspended, or unregistered, potentially accessing freed memory or sending commands when firmware is unavailable. This issue has been resolved by ensuring pending work is canceled in all relevant teardown and suspend paths.
References
- nvd.nist.gov/vuln/detail/CVE-2026-89523 (opens in a new tab)
- git.kernel.org/stable/c/2889e84282dda147f10b10d94cf0efd90a349c53 (opens in a new tab)
- git.kernel.org/stable/c/5be6d02837d418bc6c805b5cab1b338de6de9ca7 (opens in a new tab)
- git.kernel.org/stable/c/c5e073f2fbfd34d22099a50d96f60990799753e2 (opens in a new tab)
- ubuntu.com/security/CVE-2026-89523 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-89523 (opens in a new tab)
- git.kernel.org/linus/2889e84282dda147f10b10d94cf0efd90a349c53 (opens in a new tab)