VULNERABILITY

Debian: CVE-2022-49948: linux -- security update

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Debian: CVE-2022-49948: linux -- security update

Severity
6
CVSS
(AV:L/AC:L/Au:S/C:C/I:N/A:C)
Published
06/20/2025
Created
06/21/2025
Added
06/20/2025
Modified
06/20/2025

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.

Solution(s)

  • debian-upgrade-linux

References

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