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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-49948 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: vt: Clear selection before changing the font When changing the console font with ioctl(KDFONTOP) the new font size can be bigger than the previous font. A previous selection may thus now be outside of the new screen size and thus trigger out-of-bounds accesses to graphics memory if the selection is removed in vc_do_resize(). Prevent such out-of-memory accesses by dropping the selection before the various con_font_set() console handlers are called.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1cf1930369c9dc428d827b60260c53271bff3285 kernel.org Patch 
https://git.kernel.org/stable/c/2535431ae967ad17585513649625fea7db28d4db kernel.org Patch 
https://git.kernel.org/stable/c/566f9c9f89337792070b5a6062dff448b3e7977f kernel.org Patch 
https://git.kernel.org/stable/c/989201bb8c00b222235aff04e6200230d29dc7bb kernel.org Patch 
https://git.kernel.org/stable/c/c555cf04684fde39b5b0dd9fd80730030ee10c4a kernel.org Patch 
https://git.kernel.org/stable/c/c904fe03c4bd1f356a58797d39e2a5d0ca15cefc kernel.org Patch 
https://git.kernel.org/stable/c/e9ba4611ddf676194385506222cce7b0844e708e kernel.org Patch 
https://git.kernel.org/stable/c/f74b4a41c5d7c9522469917e3072e55d435efd9e kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-125 Out-of-bounds Read cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-49948
NVD Published Date:
06/18/2025
NVD Last Modified:
11/14/2025
Source:
kernel.org