High severity · published Sep 11, 2026
CVE-2026-89597
fbdev: uvesafb: unregister connector callback on init failure
7.8
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
8bdb3a2d7df48b861972c4bfb58490853a228f51 before b149f77d04082a9da75944cdc488becb0e35258f; 8bdb3a2d7df48b861972c4bfb58490853a228f51 before 0352fdac3cbf11e3b323322ff8cd95e20cbf5cd7; 8bdb3a2d7df48b861972c4bfb58490853a228f51 before 17518e7123f7ef01b1155064dc01f2087583908e; 8bdb3a2d7df48b861972c4bfb58490853a228f51 before 9eb7b3cbe99c9c0edbff69eb155c723e30983c22; 8bdb3a2d7df48b861972c4bfb58490853a228f51 before 9f8a822b44c42502f105cf6574f4867067eecdd0; 8bdb3a2d7df48b861972c4bfb58490853a228f51 before 466a8af0dee2cf745307155e26884e19a37b7e15; +3 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89597
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-89597
git.kernel.org
https://git.kernel.org/stable/c/0352fdac3cbf11e3b323322ff8cd95e20cbf5cd7
git.kernel.org
https://git.kernel.org/stable/c/17518e7123f7ef01b1155064dc01f2087583908e
git.kernel.org
https://git.kernel.org/stable/c/466a8af0dee2cf745307155e26884e19a37b7e15
git.kernel.org
https://git.kernel.org/stable/c/9e768ae51426af2034d479133cfd73010d641b1a
git.kernel.org
https://git.kernel.org/stable/c/9eb7b3cbe99c9c0edbff69eb155c723e30983c22
git.kernel.org
https://git.kernel.org/stable/c/9f8a822b44c42502f105cf6574f4867067eecdd0
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