{"id":"CVE-2026-64245","summary":"fbdev: modedb: fix a possible UAF in fb_find_mode()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: modedb: fix a possible UAF in fb_find_mode()\n\nIf mode_option is NULL, it is assigned from mode_option_buf:\n\n  if (!mode_option) {\n    fb_get_options(NULL, &mode_option_buf);\n    mode_option = mode_option_buf;\n  }\n\nLater, name is assigned from mode_option:\n\n  const char *name = mode_option;\n\nHowever, mode_option_buf is freed before name is no longer used:\n\n  kfree(mode_option_buf);\n\nwhile name is still accessed by:\n\n  if ((name_matches(db[i], name, namelen) ||\n\nSince name aliases mode_option_buf, this may result in a\nuse-after-free.\n\nFix this by extending the lifetime of mode_option_buf until the end of the\nfunction by using scope-based resource management for cleanup.","modified":"2026-07-28T04:03:02.489409009Z","published":"2026-07-24T15:31:14.142Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64245.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/13b6f0cdd5cd5e60f682ec43134ab0e2024bd356"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4d418cf8daf57e454b4d855bf9b2419fd8e6a540"},{"type":"WEB","url":"https://git.kernel.org/stable/c/85b6256469cebdac395e7447147e06b2e151014f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c7dc382439f7b019e207055b52e9cec051d42fa9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f906347d75c7fc377041c6d3c535d0f08846aada"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64245.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64245"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"089d924d03d5c17b05d02992f57671ccfba1c4f0"},{"fixed":"c7dc382439f7b019e207055b52e9cec051d42fa9"},{"fixed":"f906347d75c7fc377041c6d3c535d0f08846aada"},{"fixed":"4d418cf8daf57e454b4d855bf9b2419fd8e6a540"},{"fixed":"13b6f0cdd5cd5e60f682ec43134ab0e2024bd356"},{"fixed":"85b6256469cebdac395e7447147e06b2e151014f"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64245.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.4.0"},{"fixed":"6.6.144"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.95"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.38"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.3"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64245.json"}}],"schema_version":"1.7.5"}