Answer in brief
CVE-2026-46191 records a High severity (CVSS 7.1) vulnerability in fbcon: Avoid OOB font access if console rotation fails. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=6cc50e1c5b57180fd37a31282000f43859b0fe73 <b51c343a81e6e806525a4435e22532c107dd7e9d || >=6cc50e1c5b57180fd37a31282000f43859b0fe73 <46cf3646dea54baeaa2eafe3fb1ba769947f31b0 || >=6cc50e1c5b57180fd37a31282000f43859b0fe73 <524a6079395916fb3d790ef2bb46a1d2939b27dd || >=6cc50e1c5b57180fd37a31282000f43859b0fe73 <594973a2e54924d8ba31c9faac669fc1ba6fcb80 || >=6cc50e1c5b57180fd37a31282000f43859b0fe73 <ab6c34b9829d5de03f1d08a47a2253729a6e7e27 || >=6cc50e1c5b57180fd37a31282000f43859b0fe73 <7105d9f1387d63b15c9a860674fc92c959181f2f || >=6cc50e1c5b57180fd37a31282000f43859b0fe73 <b44cc78ff46b96e72d333a3be6aaaa0a14797263 || >=6cc50e1c5b57180fd37a31282000f43859b0fe73 <e4ef723d8975a2694cc90733a6b888a5e2841842 | b51c343a81e6e806525a4435e22532c107dd7e9d, 46cf3646dea54baeaa2eafe3fb1ba769947f31b0, 524a6079395916fb3d790ef2bb46a1d2939b27dd, 594973a2e54924d8ba31c9faac669fc1ba6fcb80, ab6c34b9829d5de03f1d08a47a2253729a6e7e27, 7105d9f1387d63b15c9a860674fc92c959181f2f, b44cc78ff46b96e72d333a3be6aaaa0a14797263, e4ef723d8975a2694cc90733a6b888a5e2841842 |
| Linux/Linuxgeneric | 2.6.15 | Not reported |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
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
Quoted source text, attributed separately from HOL analysis.