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CVE-2026-80786

fbdev: Wrap user-invoked calls to fb_set_var() in helper

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < 07f7e46833f71472e30da54a50dacdf48521bdd3
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < 6f611e5e5f3327cf2e2daabe6ee5acac58cc784e
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 2.6.12
Status affected
Version 0
Version < 2.6.12
Status unaffected
Version <= 7.1.*
Version 7.1.11
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.05
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/07f7e46833f71472e30da54a50dacdf48521bdd3
https://git.kernel.org/stable/c/6f611e5e5f3327cf2e2daabe6ee5acac58cc784e