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.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
References 8
https://git.kernel.org/stable/c/466a8af0dee2cf745307155e26884e19a37b7e15
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9e768ae51426af2034d479133cfd73010d641b1a
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9f8a822b44c42502f105cf6574f4867067eecdd0
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/de8db23aa7c337e606fca9faf48b3ba72968597a
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0352fdac3cbf11e3b323322ff8cd95e20cbf5cd7
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/17518e7123f7ef01b1155064dc01f2087583908e
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9eb7b3cbe99c9c0edbff69eb155c723e30983c22
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b149f77d04082a9da75944cdc488becb0e35258f
416baaa9-dc9f-4396-8d5f-8c081fb06d67