{"id":"CVE-2026-89817","title":"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 i…","summary":"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 i…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 08c8ec28547987e55a90c662f8795e05c2925498","Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 9096edfd6f2edbc79612b482547e0972edbcfe4b","Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 89210cb5ff8fdbe055c97ac688be2268f6c815ae","Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < d0f3312f7800eb0e00d1264f66104c788f43dd69","Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < b86438a5c6b0250ccb07dd380184d1e70e0dea6c","Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 6ea61f1d4cbaa0db937e31bffc041fb8afeacf52","Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 500cb24cd61bad8a2747ddfc49b7034899c82d94","Linux 5.13"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T11:16:46.990","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89817","references":[{"url":"https://git.kernel.org/stable/c/08c8ec28547987e55a90c662f8795e05c2925498","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/500cb24cd61bad8a2747ddfc49b7034899c82d94","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6ea61f1d4cbaa0db937e31bffc041fb8afeacf52","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/89210cb5ff8fdbe055c97ac688be2268f6c815ae","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9096edfd6f2edbc79612b482547e0972edbcfe4b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b86438a5c6b0250ccb07dd380184d1e70e0dea6c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d0f3312f7800eb0e00d1264f66104c788f43dd69","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-16T10:53:54.004Z","epss":0.00205,"epssPercentile":0.09325,"slug":"CVE-2026-89817","body":"## Overview\n\nIn 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.\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":[]}