{"id":"CVE-2026-98181","state":"PUBLISHED","title":"drm/gud: fix out-of-bounds write in gud_plane_atomic_check()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gud: fix out-of-bounds write in gud_plane_atomic_check()\n\nThe plane property loop uses req->properties[num_properties + i] as write\nindex while simultaneously incrementing `num_properties` inside the loop.\nAt iteration i, num_properties has also incremented by i, so the write\nis done at `initial_num_properties + 2*i`, skipping every other index and\nadvancing by 2 per iteration.\n\nWith just 2 connector and 32 plane properties the last write happens at\nindex 64, one slot past the end of the 64-slot (indices 0–63)\nallocation. A USB device can trigger OOB by advertising the maximum\nnumber of properties.\n\nFix by dropping the redundant `+ i`; num_properties is already the correct\nrunning index, as gud_connector_fill_properties() fills the preceding\nslots.","publishedAt":"2026-10-06T08:44:24.284Z","updatedAt":"2026-10-19T09:15:12.473Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"ee04903fe6a098160d20dde4fc5af4cb42846735","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"4153a9e008f2512bd3cf90a319436865847369b9","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"5f5e565410b4987e9663f599f9ab0c350f8338d4","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"7e630edb22088df7aa0d55b02237a71e4c9a523d","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"2c92af27ad23e2fbc0367b11a9027d36d94ef4b3","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"ea57100955c1c2a525ba1a98c18d9a05b25aeedb","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"59ced288fcba9e91bd38e61a972ad782c4edb7d0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/gud/gud_pipe.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","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_pipe.c"]}],"references":["https://git.kernel.org/stable/c/ee04903fe6a098160d20dde4fc5af4cb42846735","https://git.kernel.org/stable/c/4153a9e008f2512bd3cf90a319436865847369b9","https://git.kernel.org/stable/c/5f5e565410b4987e9663f599f9ab0c350f8338d4","https://git.kernel.org/stable/c/7e630edb22088df7aa0d55b02237a71e4c9a523d","https://git.kernel.org/stable/c/2c92af27ad23e2fbc0367b11a9027d36d94ef4b3","https://git.kernel.org/stable/c/ea57100955c1c2a525ba1a98c18d9a05b25aeedb","https://git.kernel.org/stable/c/59ced288fcba9e91bd38e61a972ad782c4edb7d0"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98181.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98181","state":"PUBLISHED","datePublished":"2026-10-06T08:44:24.284Z","dateUpdated":"2026-10-19T09:15:12.473Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.322Z"},"containers":{"cna":{"title":"drm/gud: fix out-of-bounds write in gud_plane_atomic_check()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gud: fix out-of-bounds write in gud_plane_atomic_check()\n\nThe plane property loop uses req->properties[num_properties + i] as write\nindex while simultaneously incrementing `num_properties` inside the loop.\nAt iteration i, num_properties has also incremented by i, so the write\nis done at `initial_num_properties + 2*i`, skipping every other index and\nadvancing by 2 per iteration.\n\nWith just 2 connector and 32 plane properties the last write happens at\nindex 64, one slot past the end of the 64-slot (indices 0–63)\nallocation. A USB device can trigger OOB by advertising the maximum\nnumber of properties.\n\nFix by dropping the redundant `+ i`; num_properties is already the correct\nrunning index, as gud_connector_fill_properties() fills the preceding\nslots."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"ee04903fe6a098160d20dde4fc5af4cb42846735","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"4153a9e008f2512bd3cf90a319436865847369b9","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"5f5e565410b4987e9663f599f9ab0c350f8338d4","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"7e630edb22088df7aa0d55b02237a71e4c9a523d","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"2c92af27ad23e2fbc0367b11a9027d36d94ef4b3","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"ea57100955c1c2a525ba1a98c18d9a05b25aeedb","versionType":"git"},{"version":"40e1a70b4aedf2859a1829991b48ef0ebe650bf2","status":"affected","lessThan":"59ced288fcba9e91bd38e61a972ad782c4edb7d0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/gud/gud_pipe.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","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_pipe.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ee04903fe6a098160d20dde4fc5af4cb42846735"},{"url":"https://git.kernel.org/stable/c/4153a9e008f2512bd3cf90a319436865847369b9"},{"url":"https://git.kernel.org/stable/c/5f5e565410b4987e9663f599f9ab0c350f8338d4"},{"url":"https://git.kernel.org/stable/c/7e630edb22088df7aa0d55b02237a71e4c9a523d"},{"url":"https://git.kernel.org/stable/c/2c92af27ad23e2fbc0367b11a9027d36d94ef4b3"},{"url":"https://git.kernel.org/stable/c/ea57100955c1c2a525ba1a98c18d9a05b25aeedb"},{"url":"https://git.kernel.org/stable/c/59ced288fcba9e91bd38e61a972ad782c4edb7d0"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:15:12.473Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}