GSD-2023-1000845 lib/fonts: fix undefined behavior in bit shift for get_default_font
Undefined behavior in bit shift operations within the Linux kernel font handling code can lead to potential system instability or crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2023-1000845?
GSD-2023-1000845 is a vulnerability in Kernel, published on 17 Jan 2023.
Official description
lib/fonts: fix undefined behavior in bit shift for get_default_font
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.16 by commit 9c14a85e18a58c102ec223144b7edb5b345c1bea, it was introduced in version v2.6.23 by commit c81f717cb9e0bd91dc4b98753cb2705ab0fe2801. For more details please see the references link.
Which versions are affected by GSD-2023-1000845?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000845?
No fix has been published for GSD-2023-1000845 yet. Limit exposure of the affected software until one is available.
Is GSD-2023-1000845 being exploited?
There is no known exploitation of GSD-2023-1000845 in the wild and no public exploit code.