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
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
6cc50e1c5b57180fd37a31282000f43859b0fe73 to < b51c343a81e6e806525a4435e22532c107dd7e9daffected6cc50e1c5b57180fd37a31282000f43859b0fe73 to < 46cf3646dea54baeaa2eafe3fb1ba769947f31b0affected6cc50e1c5b57180fd37a31282000f43859b0fe73 to < 524a6079395916fb3d790ef2bb46a1d2939b27ddaffected6cc50e1c5b57180fd37a31282000f43859b0fe73 to < 594973a2e54924d8ba31c9faac669fc1ba6fcb80affected6cc50e1c5b57180fd37a31282000f43859b0fe73 to < ab6c34b9829d5de03f1d08a47a2253729a6e7e27affected6cc50e1c5b57180fd37a31282000f43859b0fe73 to < 7105d9f1387d63b15c9a860674fc92c959181f2faffected6cc50e1c5b57180fd37a31282000f43859b0fe73 to < b44cc78ff46b96e72d333a3be6aaaa0a14797263affected6cc50e1c5b57180fd37a31282000f43859b0fe73 to < e4ef723d8975a2694cc90733a6b888a5e2841842affected
Linux Linux
Default version status: affected
2.6.15affected0 to < 2.6.15unaffected5.10.259 to ≤ 5.10.*unaffected5.15.210 to ≤ 5.15.*unaffected6.1.176 to ≤ 6.1.*unaffected6.6.140 to ≤ 6.6.*unaffected6.12.90 to ≤ 6.12.*unaffected6.18.32 to ≤ 6.18.*unaffected7.0.7 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/b51c343a81e6e806525a4435e22532c107dd7e9d ↗
- https://git.kernel.org/stable/c/46cf3646dea54baeaa2eafe3fb1ba769947f31b0 ↗
- https://git.kernel.org/stable/c/524a6079395916fb3d790ef2bb46a1d2939b27dd ↗
- https://git.kernel.org/stable/c/594973a2e54924d8ba31c9faac669fc1ba6fcb80 ↗
- https://git.kernel.org/stable/c/ab6c34b9829d5de03f1d08a47a2253729a6e7e27 ↗
- https://git.kernel.org/stable/c/7105d9f1387d63b15c9a860674fc92c959181f2f ↗
- https://git.kernel.org/stable/c/b44cc78ff46b96e72d333a3be6aaaa0a14797263 ↗
- https://git.kernel.org/stable/c/e4ef723d8975a2694cc90733a6b888a5e2841842 ↗
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html ↗