{"id":"CVE-2026-80786","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: Wrap user-invoked calls to fb_set_var() in helper\n\nHandle fbcon during display updates in fb_set_var_from_user()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: Wrap user-invoked calls to fb_set_var() in helper\n\nHandle fbcon during display updates in fb_set_var_from_user(). Check\nwith fbcon if the mode change is possible…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ed7e9715849abd0816b8487b0d12ebd05d6e938b","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 07f7e46833f71472e30da54a50dacdf48521bdd3","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6f611e5e5f3327cf2e2daabe6ee5acac58cc784e","Linux 2.6.12"],"published":"2026-09-04","updated":"2026-10-15","sourceUpdated":"2026-10-15T11:17:52.307","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80786","references":[{"url":"https://git.kernel.org/stable/c/07f7e46833f71472e30da54a50dacdf48521bdd3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6f611e5e5f3327cf2e2daabe6ee5acac58cc784e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ed7e9715849abd0816b8487b0d12ebd05d6e938b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00198,"epssPercentile":0.08888,"ingestedAt":"2026-10-15T11:00:41.662Z","slug":"CVE-2026-80786","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: Wrap user-invoked calls to fb_set_var() in helper\n\nHandle fbcon during display updates in fb_set_var_from_user(). Check\nwith fbcon if the mode change is possible, update hardware state and\nfinally update fbcon. Update all callers.\n\nOnly the FBIOPUT_VSCREENINFO ioctl currently does all steps. Other\nmode-changes callers in sysfs and driver code are missing fbcon-related\nsteps.\n\nWith the new helper, ps3fb and sh_mobile_lcdcfb no longer maintain\nfbcon state themselves.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}