UNKNOWN NVD
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 updat
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.
References
- https://git.kernel.org/stable/c/07f7e46833f71472e30da54a50dacdf48521bdd3
- https://git.kernel.org/stable/c/6f611e5e5f3327cf2e2daabe6ee5acac58cc784e
This unknown severity vulnerability was published on 2026-09-04 via NVD.
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