CVE-2026-64245
Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: modedb: fix a possible UAF in fb_find_mode() If mode_option is NULL, it is assigned from mode_option_buf: if (!mode_option) { fb_get_options(NULL, &mode_option_buf); mode_option = mode_option_buf; } Later, name is assigned from mode_option: const char *name = mode_option; However, mode_option_buf is freed before name is no longer used: kfree(mode_option_buf); while name is still accessed by: if ((name_matches(db[i], name, namelen) || Since name aliases mode_option_buf, this may result in a use-after-free. Fix this by extending the lifetime of mode_option_buf until the end of the function by using scope-based resource management for cleanup.
How to fix
- linux linux_kernel6.6.144, 6.12.95, 6.18.38, 7.1.3 or later
- git.kernel.org/stable/c/13b6f0cdd5cd5e60f682ec43134ab0e2024bd356
- git.kernel.org/stable/c/4d418cf8daf57e454b4d855bf9b2419fd8e6a540
- git.kernel.org/stable/c/85b6256469cebdac395e7447147e06b2e151014f
- git.kernel.org/stable/c/c7dc382439f7b019e207055b52e9cec051d42fa9
- git.kernel.org/stable/c/f906347d75c7fc377041c6d3c535d0f08846aada
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.4 ≤ v < 6.6.144, 6.7 ≤ v < 6.12.95, 6.13 ≤ v < 6.18.38, 6.19 ≤ v < 7.1.3 | 6.6.144, 6.12.95, 6.18.38, 7.1.3 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.