CVE-2026-80786: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: fbdev: Wrap user-invoked calls to fb_set_var() in helper Handle fbcon during display updates in fb_set_var_from_user(). Check with fbcon if the mode change is possible, update hardware state and finally update fbcon. Update all callers. Only the FBIOPUT_VSCREENINFO ioctl currently does all steps. Other mode-changes callers in sysfs and driver code are missing fbcon-related steps. With the new helper, ps3fb and sh_mobile_lcdcfb no longer maintain fbcon state themselves.

Засегнати продукти

• Linux Linux: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди af39d039b5591e3ebaa2e013862bd8cacc6d9dc3; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 3130e7bf43ecfe3a15bcf90b9698e0764a2d8d08; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди d33589eff3d40439b3c83e8da0d07d20df797d50; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди ed7e9715849abd0816b8487b0d12ebd05d6e938b; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 07f7e46833f71472e30da54a50dacdf48521bdd3; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 6f611e5e5f3327cf2e2daabe6ee5acac58cc784e
• Linux Linux: 2.6.12; преди 2.6.12; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.57 до 6.18.*; 7.1.11 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-2026-80786
• https://nvd.nist.gov/vuln/detail/CVE-2026-80786
• https://git.kernel.org/stable/c/af39d039b5591e3ebaa2e013862bd8cacc6d9dc3
• https://git.kernel.org/stable/c/3130e7bf43ecfe3a15bcf90b9698e0764a2d8d08
• https://git.kernel.org/stable/c/d33589eff3d40439b3c83e8da0d07d20df797d50
• https://git.kernel.org/stable/c/ed7e9715849abd0816b8487b0d12ebd05d6e938b
• https://git.kernel.org/stable/c/07f7e46833f71472e30da54a50dacdf48521bdd3
• https://git.kernel.org/stable/c/6f611e5e5f3327cf2e2daabe6ee5acac58cc784e