CVE-2026-89597

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux8bdb3a2d7df48b861972c4bfb58490853a228f51 < b149f77d04082a9da75944cdc488becb0e35258faffected
LinuxLinux8bdb3a2d7df48b861972c4bfb58490853a228f51 < 0352fdac3cbf11e3b323322ff8cd95e20cbf5cd7affected
LinuxLinux8bdb3a2d7df48b861972c4bfb58490853a228f51 < 17518e7123f7ef01b1155064dc01f2087583908eaffected
LinuxLinux8bdb3a2d7df48b861972c4bfb58490853a228f51 < 9eb7b3cbe99c9c0edbff69eb155c723e30983c22affected
LinuxLinux8bdb3a2d7df48b861972c4bfb58490853a228f51 < 9f8a822b44c42502f105cf6574f4867067eecdd0affected
LinuxLinux8bdb3a2d7df48b861972c4bfb58490853a228f51 < 466a8af0dee2cf745307155e26884e19a37b7e15affected
LinuxLinux8bdb3a2d7df48b861972c4bfb58490853a228f51 < 9e768ae51426af2034d479133cfd73010d641b1aaffected
LinuxLinux8bdb3a2d7df48b861972c4bfb58490853a228f51 < de8db23aa7c337e606fca9faf48b3ba72968597aaffected
LinuxLinux2.6.24affected
LinuxLinux0 < 2.6.24unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.109 <= 6.12.*unaffected
LinuxLinux6.18.50 <= 6.18.*unaffected
LinuxLinux7.2.4 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References