AZL-89040
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-89040.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-89040
- Upstream
- Published
- 2026-05-28T10:16:34Z
- Modified
- 2026-08-28T17:47:53Z
- Summary
- CVE-2026-46191 affecting package kernel for versions less than 6.6.141.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
fbcon: Avoid OOB font access if console rotation fails
Clear the font buffer if the reallocation during console rotation fails in fbcon_rotate_font(). The putcs implementations for the rotated buffer will return early in this case. See [1] for an example.
Currently, fbcon_rotate_font() keeps the old buffer, which is too small for the rotated font. Printing to the rotated console with a high-enough character code will overflow the font buffer.
v2:
- fix typos in commit message
- References