Tracker / CVE-2022-49948
CVE-2022-49948
High 7.8
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.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · … → 4.9.328 |
| linux | linux_kernel · 4.10 → 4.14.293 |
| linux | linux_kernel · 4.15 → 4.19.258 |
| linux | linux_kernel · 4.20 → 5.4.213 |
| linux | linux_kernel · 5.11 → 5.15.66 |
| linux | linux_kernel · 5.16 → 5.19.8 |
| linux | linux_kernel · 5.5 → 5.10.142 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.