# CVE-2026-89597

## Summary

- **CVE ID:** CVE-2026-89597
- **Severity:** HIGH
- **CVSS Score:** 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** N/A
- **Published:** Sep 11, 2026
- **Last Modified:** Sep 14, 2026

## 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.

## Affected Products

- Linux — Linux (8bdb3a2d7df48b861972c4bfb58490853a228f51)
- Linux — Linux (2.6.24)
- Linux — Linux (0)
- Linux — Linux (6.12.109)
- Linux — Linux (6.18.50)
- Linux — Linux (7.2.4)
- Linux — Linux (7.3-rc1)
- Linux — Linux (5.10.270)
- Linux — Linux (5.15.221)
- Linux — Linux (6.1.188)
- Linux — Linux (6.6.157)

## References

- [CNA](https://git.kernel.org/stable/c/9f8a822b44c42502f105cf6574f4867067eecdd0)
- [CNA](https://git.kernel.org/stable/c/466a8af0dee2cf745307155e26884e19a37b7e15)
- [CNA](https://git.kernel.org/stable/c/9e768ae51426af2034d479133cfd73010d641b1a)
- [CNA](https://git.kernel.org/stable/c/de8db23aa7c337e606fca9faf48b3ba72968597a)
- [CNA](https://git.kernel.org/stable/c/b149f77d04082a9da75944cdc488becb0e35258f)
- [CNA](https://git.kernel.org/stable/c/0352fdac3cbf11e3b323322ff8cd95e20cbf5cd7)
- [CNA](https://git.kernel.org/stable/c/17518e7123f7ef01b1155064dc01f2087583908e)
- [CNA](https://git.kernel.org/stable/c/9eb7b3cbe99c9c0edbff69eb155c723e30983c22)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.16%
- **EPSS Percentile:** 6.0

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._