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CVE-2026-89523

Last refreshed2026-10-19

Status: UPDATED  |  Advisory ID: CVE-2026-89523

Key Details

CVECVE-2026-89523
CVSS Score / Version
7.8 (High) / CVSS v3.1
Updated2026-10-19
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Prose
attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products
Linux Kernel

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
LinuxLinux Kernel
SubsystemsOT Supporting Infrastructure
SectorsAll Sectors

What to Know

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

wifi: mt76: mt7925: cancel pending mlo_pm_work

If the device is reset, suspended or unregistered within that window,

the pending work can still run and access vif/bss data that may already

be freed, or send MCU commands while the firmware is not available.

Add cancel_delayed_work_sync(&dev->mlo_pm_work) in all relevant teardown

and suspend paths:

- mt7925_mac_reset_work() (chip reset recovery)

- mt7925e_unregister_device() (PCIe unbind)

- mt7925_pci_suspend() (PCIe bus suspend)

- mt7925_suspend() (mac80211 suspend)

- mt7925u_suspend() (USB bus / runtime suspend)

This ensures the work is stopped before the device state becomes

invalid. (NVD)

What to Do

Monitor Linux's web page for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-89523
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-89523
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