CVE-2026-80786

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.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/07f7e46833f71472e30da54a50dacdf48521bdd3
https://git.kernel.org/stable/c/6f611e5e5f3327cf2e2daabe6ee5acac58cc784e

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-04 16:18

Updated : 2026-09-07 15:17

NVD link : CVE-2026-80786

Mitre link : CVE-2026-80786

CVE.ORG link : CVE-2026-80786

JSON object : View

Products Affected

No product.

CWE

No CWE.

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