CVE-2026-46191
Published: May 28, 2026
Modified: May 28, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: fbcon: Avoid OOB font access if console rotation fails Clear the font buffer if the reallocation during console rotation fails in fbcon_rotate_font(). The putcs implementations for the rotated buffer will return early in this case. See [1] for an example. Currently, fbcon_rotate_font() keeps the old buffer, which is too small for the rotated font. Printing to the rotated console with a high-enough character code will overflow the font buffer. v2: - fix typos in commit message
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 6cc50e1c5b57180fd37a31282000f43859b0fe73 - < 594973a2e54924d8ba31c9faac669fc1ba6fcb80affected 6cc50e1c5b57180fd37a31282000f43859b0fe73 - < ab6c34b9829d5de03f1d08a47a2253729a6e7e27affected 6cc50e1c5b57180fd37a31282000f43859b0fe73 - < 7105d9f1387d63b15c9a860674fc92c959181f2faffected 6cc50e1c5b57180fd37a31282000f43859b0fe73 - < b44cc78ff46b96e72d333a3be6aaaa0a14797263affected 6cc50e1c5b57180fd37a31282000f43859b0fe73 - < e4ef723d8975a2694cc90733a6b888a5e2841842 |
Linux | Linux | affected 2.6.15unaffected 0 - < 2.6.15unaffected 6.6.140 - <= 6.6.*unaffected 6.12.90 - <= 6.12.*unaffected 6.18.32 - <= 6.18.*+2 more versions |
References
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