CVE-2026-89597

fbdev: uvesafb: unregister connector callback on init failure

HIGH
7.8
CVSS Score
Published: September 11, 2026 at 07:44 PM UTC
Updated: October 19, 2026 at 09:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.6.248bdb3a2d7df48b861972c4bfb58490853a228f51
Vendor states this is fixed in 0352fdac3cbf11e3b323322ff8cd95e20cbf5cd7 (fixed)
Vendor states this is fixed in 17518e7123f7ef01b1155064dc01f2087583908e (fixed)
Vendor states this is fixed in 466a8af0dee2cf745307155e26884e19a37b7e15 (fixed)
Vendor states this is fixed in 9e768ae51426af2034d479133cfd73010d641b1a (fixed)
Vendor states this is fixed in 9eb7b3cbe99c9c0edbff69eb155c723e30983c22 (fixed)
Vendor states this is fixed in 9f8a822b44c42502f105cf6574f4867067eecdd0 (fixed)
Vendor states this is fixed in b149f77d04082a9da75944cdc488becb0e35258f (fixed)
Vendor states this is fixed in de8db23aa7c337e606fca9faf48b3ba72968597a (fixed)
Vendor states this is fixed in 2.6.24 (unaffected)
Vendor states this is fixed in 5.10.270 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.109 (unaffected)
Vendor states this is fixed in 6.18.50 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.4 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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