CVE - CVE-2022-49948

CVE-ID
CVE-2022-49948	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/1cf1930369c9dc428d827b60260c53271bff3285 URL:https://git.kernel.org/stable/c/1cf1930369c9dc428d827b60260c53271bff3285 MISC:https://git.kernel.org/stable/c/2535431ae967ad17585513649625fea7db28d4db URL:https://git.kernel.org/stable/c/2535431ae967ad17585513649625fea7db28d4db MISC:https://git.kernel.org/stable/c/566f9c9f89337792070b5a6062dff448b3e7977f URL:https://git.kernel.org/stable/c/566f9c9f89337792070b5a6062dff448b3e7977f MISC:https://git.kernel.org/stable/c/989201bb8c00b222235aff04e6200230d29dc7bb URL:https://git.kernel.org/stable/c/989201bb8c00b222235aff04e6200230d29dc7bb MISC:https://git.kernel.org/stable/c/c555cf04684fde39b5b0dd9fd80730030ee10c4a URL:https://git.kernel.org/stable/c/c555cf04684fde39b5b0dd9fd80730030ee10c4a MISC:https://git.kernel.org/stable/c/c904fe03c4bd1f356a58797d39e2a5d0ca15cefc URL:https://git.kernel.org/stable/c/c904fe03c4bd1f356a58797d39e2a5d0ca15cefc MISC:https://git.kernel.org/stable/c/e9ba4611ddf676194385506222cce7b0844e708e URL:https://git.kernel.org/stable/c/e9ba4611ddf676194385506222cce7b0844e708e MISC:https://git.kernel.org/stable/c/f74b4a41c5d7c9522469917e3072e55d435efd9e URL:https://git.kernel.org/stable/c/f74b4a41c5d7c9522469917e3072e55d435efd9e
Assigning CNA
kernel.org
Date Record Created
20250618	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250618)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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