CVE-2022-49948
vt: Clear selection before changing the font
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 18, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
009e39ae44f4191188aeb6dfbf661b771dbbe515 < c555cf04684fde39b5b0dd9fd80730030ee10c4a 009e39ae44f4191188aeb6dfbf661b771dbbe515 < e9ba4611ddf676194385506222cce7b0844e708e 009e39ae44f4191188aeb6dfbf661b771dbbe515 < f74b4a41c5d7c9522469917e3072e55d435efd9e 009e39ae44f4191188aeb6dfbf661b771dbbe515 < 1cf1930369c9dc428d827b60260c53271bff3285 009e39ae44f4191188aeb6dfbf661b771dbbe515 < 989201bb8c00b222235aff04e6200230d29dc7bb 009e39ae44f4191188aeb6dfbf661b771dbbe515 < 2535431ae967ad17585513649625fea7db28d4db 009e39ae44f4191188aeb6dfbf661b771dbbe515 < c904fe03c4bd1f356a58797d39e2a5d0ca15cefc 009e39ae44f4191188aeb6dfbf661b771dbbe515 < 566f9c9f89337792070b5a6062dff448b3e7977f e60f8fcce05042e8f8cea25ee81fecc1222114cf 5812a9bc9d68a82c2cc839f88e6f7a05093ab39d 863ad19fd654c485e3beec3575c4d74a1e74369e dbc3fd44f957a39407e889287bf61fa0ef3ecc14 0b2a0a58ad22f9d6dfc641bc5ec46057493f22a5 9f2d48f0745f921040df91bfe8fa7f0339cd7497 3425e397fb23cc2e8e6fb8f5b8226dcb447e84dd eeae0a12a16650ff494d5faefa371cd9e7079575
Linux / Linux
4.9
References
git.kernel.org: https://git.kernel.org/stable/c/c555cf04684fde39b5b0dd9fd80730030ee10c4a git.kernel.org: https://git.kernel.org/stable/c/e9ba4611ddf676194385506222cce7b0844e708e git.kernel.org: https://git.kernel.org/stable/c/f74b4a41c5d7c9522469917e3072e55d435efd9e git.kernel.org: https://git.kernel.org/stable/c/1cf1930369c9dc428d827b60260c53271bff3285 git.kernel.org: https://git.kernel.org/stable/c/989201bb8c00b222235aff04e6200230d29dc7bb git.kernel.org: https://git.kernel.org/stable/c/2535431ae967ad17585513649625fea7db28d4db git.kernel.org: https://git.kernel.org/stable/c/c904fe03c4bd1f356a58797d39e2a5d0ca15cefc git.kernel.org: https://git.kernel.org/stable/c/566f9c9f89337792070b5a6062dff448b3e7977f