CVE-2026-64245: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 089d924d03d5c17b05d02992f57671ccfba1c4f0 преди c7dc382439f7b019e207055b52e9cec051d42fa9; 089d924d03d5c17b05d02992f57671ccfba1c4f0 преди f906347d75c7fc377041c6d3c535d0f08846aada; 089d924d03d5c17b05d02992f57671ccfba1c4f0 преди 4d418cf8daf57e454b4d855bf9b2419fd8e6a540; 089d924d03d5c17b05d02992f57671ccfba1c4f0 преди 13b6f0cdd5cd5e60f682ec43134ab0e2024bd356; 089d924d03d5c17b05d02992f57671ccfba1c4f0 преди 85b6256469cebdac395e7447147e06b2e151014f
• Linux Linux: 6.4; преди 6.4; 6.6.144 до 6.6.*; 6.12.95 до 6.12.*; 6.18.38 до 6.18.*; 7.1.3 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-64245
• https://nvd.nist.gov/vuln/detail/CVE-2026-64245
• https://git.kernel.org/stable/c/c7dc382439f7b019e207055b52e9cec051d42fa9
• https://git.kernel.org/stable/c/f906347d75c7fc377041c6d3c535d0f08846aada
• https://git.kernel.org/stable/c/4d418cf8daf57e454b4d855bf9b2419fd8e6a540
• https://git.kernel.org/stable/c/13b6f0cdd5cd5e60f682ec43134ab0e2024bd356
• https://git.kernel.org/stable/c/85b6256469cebdac395e7447147e06b2e151014f