A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing font->width and font->height greater than 32 to fbcon_set_font, since there are no checks in place, a shift-out-of-bounds occurs leading to undefined behavior and possible denial of service.
The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | * | 6.2 (excluding) |
| Linux_kernel | Linux | 6.2-rc1 (including) | 6.2-rc1 (including) |
| Linux_kernel | Linux | 6.2-rc2 (including) | 6.2-rc2 (including) |
| Linux_kernel | Linux | 6.2-rc3 (including) | 6.2-rc3 (including) |
| Linux_kernel | Linux | 6.2-rc4 (including) | 6.2-rc4 (including) |
| Linux_kernel | Linux | 6.2-rc5 (including) | 6.2-rc5 (including) |
| Linux_kernel | Linux | 6.2-rc6 (including) | 6.2-rc6 (including) |