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CVE-2026-89597

HIGHCVSS 7.8/10EPSS 0.16%

Last modified

CVE-2026-89597 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: fbdev: uvesafb: unregister connector callback on init failure uvesafb_init() registers the v86d connector callback before registering the platform driver. If platform_driver_register() fails, the function returns the error directly and leaves the connector callback registered. The later platform-device failure path already unregisters the callback. Add the same cleanup before the final return when platform-driver registration fails. This issue was identified during our ongoing static-analysis research while reviewing kernel code.. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: uvesafb: unregister connector callback on init failure uvesafb_init() registers the v86d connector callback before registering the platform driver. If platform_driver_register() fails, the function returns the error directly and leaves the connector callback registered. The later platform-device failure path already unregisters the callback. Add the same cleanup before the final return when platform-driver registration fails. This issue was identified during our ongoing static-analysis research while reviewing kernel code.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.16%

5.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 8bdb3a2d7df48b861972c4bfb58490853a228f51, < b149f77d04082a9da75944cdc488becb0e35258f; >= 8bdb3a2d7df48b861972c4bfb58490853a228f51, < 0352fdac3cbf11e3b323322ff8cd95e20cbf5cd7; >= 8bdb3a2d7df48b861972c4bfb58490853a228f51, < 17518e7123f7ef01b1155064dc01f2087583908e; >= 8bdb3a2d7df48b861972c4bfb58490853a228f51, < 9eb7b3cbe99c9c0edbff69eb155c723e30983c22; >= 8bdb3a2d7df48b861972c4bfb58490853a228f51, < 9f8a822b44c42502f105cf6574f4867067eecdd0; >= 8bdb3a2d7df48b861972c4bfb58490853a228f51, < 466a8af0dee2cf745307155e26884e19a37b7e15; >= 8bdb3a2d7df48b861972c4bfb58490853a228f51, < 9e768ae51426af2034d479133cfd73010d641b1a; >= 8bdb3a2d7df48b861972c4bfb58490853a228f51, < de8db23aa7c337e606fca9faf48b3ba72968597a
LinuxLinux2.6.24

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-89597?
In the Linux kernel, the following vulnerability has been resolved: fbdev: uvesafb: unregister connector callback on init failure uvesafb_init() registers the v86d connector callback before registering the platform driver. If platform_driver_register() fails, the function returns the error directly and leaves the connector callback registered. The later platform-device failure path already unregisters the callback. Add the same cleanup before the final return when platform-driver registration fails. This issue was identified during our ongoing static-analysis research while reviewing kernel code.
How severe is CVE-2026-89597?
CVE-2026-89597 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.
How do I fix CVE-2026-89597?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST