7.1

CVE-2026-46191

fbcon: Avoid OOB font access if console rotation fails

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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.15 < 6.6.140
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.90
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.32
Linux ≫ Linux Kernel Version >= 6.19 < 7.0.7
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.13% 0.03
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/stable/c/594973a2e54924d8ba31c9faac669fc1ba6fcb80
Patch
https://git.kernel.org/stable/c/ab6c34b9829d5de03f1d08a47a2253729a6e7e27
Patch
https://git.kernel.org/stable/c/7105d9f1387d63b15c9a860674fc92c959181f2f
Patch
https://git.kernel.org/stable/c/b44cc78ff46b96e72d333a3be6aaaa0a14797263
Patch
https://git.kernel.org/stable/c/e4ef723d8975a2694cc90733a6b888a5e2841842
Patch