{"id":"CVE-2026-89817","summary":"drm/gud: NUL-terminate TV mode names read from the device","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gud: NUL-terminate TV mode names read from the device\n\ngud_connector_add_tv_mode() reads a buffer of fixed-size mode names from\nthe USB device and passes pointers into it to\ndrm_mode_create_tv_properties_legacy(), which calls strlen() on each one.\nNothing guarantees the device NUL-terminates a name, so strlen() can run\npast the end of a slot and, for the last mode, past the end of the\nallocation.\n\nTerminate each name at the end of its slot before use.","modified":"2026-09-18T03:48:33.020377819Z","published":"2026-09-16T10:30:49.977Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89817.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/08c8ec28547987e55a90c662f8795e05c2925498"},{"type":"WEB","url":"https://git.kernel.org/stable/c/500cb24cd61bad8a2747ddfc49b7034899c82d94"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6ea61f1d4cbaa0db937e31bffc041fb8afeacf52"},{"type":"WEB","url":"https://git.kernel.org/stable/c/89210cb5ff8fdbe055c97ac688be2268f6c815ae"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9096edfd6f2edbc79612b482547e0972edbcfe4b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b86438a5c6b0250ccb07dd380184d1e70e0dea6c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d0f3312f7800eb0e00d1264f66104c788f43dd69"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89817.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89817"},{"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":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2"},{"fixed":"08c8ec28547987e55a90c662f8795e05c2925498"},{"fixed":"9096edfd6f2edbc79612b482547e0972edbcfe4b"},{"fixed":"89210cb5ff8fdbe055c97ac688be2268f6c815ae"},{"fixed":"d0f3312f7800eb0e00d1264f66104c788f43dd69"},{"fixed":"b86438a5c6b0250ccb07dd380184d1e70e0dea6c"},{"fixed":"6ea61f1d4cbaa0db937e31bffc041fb8afeacf52"},{"fixed":"500cb24cd61bad8a2747ddfc49b7034899c82d94"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89817.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.13.0"},{"fixed":"5.15.221"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.51"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89817.json"}}],"schema_version":"1.9.0"}