{"id":"CVE-2026-80579","revision":"9e0c02e3a1084eefb64c2a53a05b78f7","records":[{"revision":"9e0c02e3a1084eefb64c2a53a05b78f7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-80579","aliases":[],"title":"fbdev: clear fb_info->mode before deleting a videomode","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: clear fb_info->mode before deleting a videomode\n\nfb_set_var() can delete a mode from info->modelist when userspace\npasses FB_ACTIVATE_INV_MODE through FBIOPUT_VSCREENINFO. The code\nchecks that the mode being deleted is not the current info->var and\nthat fbcon is not using it, but it does not check fb_info->mode.\n\nfb_info->mode may still point into the modelist entry being deleted.\nIf the entry is freed, later mode sysfs reads through show_mode() can\ndereference a stale pointer.\n\nClear fb_info->mode before calling fb_delete_videomode() when it\nmatches the mode being removed.","state":0,"publishedAt":"2026-08-26T14:37:37.32+00:00","modifiedAt":"2026-10-16T19:26:28.024+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/video/fbdev/core/fbmem.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n                            \"lessThan\": \"ce7fef961c63229b22dec415fb988899f479d61f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n                            \"lessThan\": \"95e647d2a5304a8fd11f1ba3c8502de700650131\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/video/fbdev/core/fbmem.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.12\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.12\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.10\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/ce7fef961c63229b22dec415fb988899f479d61f","https://git.kernel.org/stable/c/95e647d2a5304a8fd11f1ba3c8502de700650131"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80579","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-80579","identifiers":["CVE-2026-80579"]},"retained":false,"historicalAffected":[]}],"coverage":[]}