{"id":"CVE-2026-89817","state":"PUBLISHED","title":"drm/gud: NUL-terminate TV mode names read from the device","description":"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.","publishedAt":"2026-09-16T10:30:49.977Z","updatedAt":"2026-10-19T08:53:11.379Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"08c8ec28547987e55a90c662f8795e05c2925498","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"9096edfd6f2edbc79612b482547e0972edbcfe4b","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"89210cb5ff8fdbe055c97ac688be2268f6c815ae","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"d0f3312f7800eb0e00d1264f66104c788f43dd69","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"b86438a5c6b0250ccb07dd380184d1e70e0dea6c","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"6ea61f1d4cbaa0db937e31bffc041fb8afeacf52","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"500cb24cd61bad8a2747ddfc49b7034899c82d94","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/gud/gud_connector.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/gud/gud_connector.c"]}],"references":["https://git.kernel.org/stable/c/08c8ec28547987e55a90c662f8795e05c2925498","https://git.kernel.org/stable/c/9096edfd6f2edbc79612b482547e0972edbcfe4b","https://git.kernel.org/stable/c/89210cb5ff8fdbe055c97ac688be2268f6c815ae","https://git.kernel.org/stable/c/d0f3312f7800eb0e00d1264f66104c788f43dd69","https://git.kernel.org/stable/c/b86438a5c6b0250ccb07dd380184d1e70e0dea6c","https://git.kernel.org/stable/c/6ea61f1d4cbaa0db937e31bffc041fb8afeacf52","https://git.kernel.org/stable/c/500cb24cd61bad8a2747ddfc49b7034899c82d94"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89817.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89817","state":"PUBLISHED","datePublished":"2026-09-16T10:30:49.977Z","dateUpdated":"2026-10-19T08:53:11.379Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.768Z"},"containers":{"cna":{"title":"drm/gud: NUL-terminate TV mode names read from the device","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"08c8ec28547987e55a90c662f8795e05c2925498","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"9096edfd6f2edbc79612b482547e0972edbcfe4b","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"89210cb5ff8fdbe055c97ac688be2268f6c815ae","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"d0f3312f7800eb0e00d1264f66104c788f43dd69","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"b86438a5c6b0250ccb07dd380184d1e70e0dea6c","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"6ea61f1d4cbaa0db937e31bffc041fb8afeacf52","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"500cb24cd61bad8a2747ddfc49b7034899c82d94","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/gud/gud_connector.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/gud/gud_connector.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/08c8ec28547987e55a90c662f8795e05c2925498"},{"url":"https://git.kernel.org/stable/c/9096edfd6f2edbc79612b482547e0972edbcfe4b"},{"url":"https://git.kernel.org/stable/c/89210cb5ff8fdbe055c97ac688be2268f6c815ae"},{"url":"https://git.kernel.org/stable/c/d0f3312f7800eb0e00d1264f66104c788f43dd69"},{"url":"https://git.kernel.org/stable/c/b86438a5c6b0250ccb07dd380184d1e70e0dea6c"},{"url":"https://git.kernel.org/stable/c/6ea61f1d4cbaa0db937e31bffc041fb8afeacf52"},{"url":"https://git.kernel.org/stable/c/500cb24cd61bad8a2747ddfc49b7034899c82d94"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T08:53:11.379Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.18.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"7.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}