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
Product status
6cc50e1c5b57180fd37a31282000f43859b0fe73 (git) before 594973a2e54924d8ba31c9faac669fc1ba6fcb80
6cc50e1c5b57180fd37a31282000f43859b0fe73 (git) before ab6c34b9829d5de03f1d08a47a2253729a6e7e27
6cc50e1c5b57180fd37a31282000f43859b0fe73 (git) before 7105d9f1387d63b15c9a860674fc92c959181f2f
6cc50e1c5b57180fd37a31282000f43859b0fe73 (git) before b44cc78ff46b96e72d333a3be6aaaa0a14797263
6cc50e1c5b57180fd37a31282000f43859b0fe73 (git) before e4ef723d8975a2694cc90733a6b888a5e2841842
2.6.15
Any version before 2.6.15
6.6.140 (semver)
6.12.90 (semver)
6.18.32 (semver)
7.0.7 (semver)
7.1-rc1 (original_commit_for_fix)
References
git.kernel.org/...c/594973a2e54924d8ba31c9faac669fc1ba6fcb80
git.kernel.org/...c/ab6c34b9829d5de03f1d08a47a2253729a6e7e27
git.kernel.org/...c/7105d9f1387d63b15c9a860674fc92c959181f2f
git.kernel.org/...c/b44cc78ff46b96e72d333a3be6aaaa0a14797263
git.kernel.org/...c/e4ef723d8975a2694cc90733a6b888a5e2841842