fbdev: uvesafb: unregister connector callback on init failure
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 2.6.24 and later | 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.109, 6.18.50, 7.2.4, 7.3 | Patch available | CNA |
- Linux VendorLinux Affected 2.6.24 and later Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.109, 6.18.50, 7.2.4, 7.3 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.109, 6.18.50, 7.2.4, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 6 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-89597
- 2026-10-03 Alias added: GHSA-4qm2-vqpp-wwm8
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/b149f77d04082a9da75944cdc488becb0e35258f
- https://git.kernel.org/stable/c/0352fdac3cbf11e3b323322ff8cd95e20cbf5cd7
- https://git.kernel.org/stable/c/17518e7123f7ef01b1155064dc01f2087583908e
- https://git.kernel.org/stable/c/9eb7b3cbe99c9c0edbff69eb155c723e30983c22
- https://git.kernel.org/stable/c/9f8a822b44c42502f105cf6574f4867067eecdd0
- https://git.kernel.org/stable/c/466a8af0dee2cf745307155e26884e19a37b7e15
- https://git.kernel.org/stable/c/9e768ae51426af2034d479133cfd73010d641b1a
- https://git.kernel.org/stable/c/de8db23aa7c337e606fca9faf48b3ba72968597a
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Sources
- CVE-2026-89597 · CVE Program
- CVE-2026-89597 · NVD
- FIRST EPSS
- GHSA-4qm2-vqpp-wwm8 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-89597 · Red Hat security data · CC BY 4.0
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