{"id":"CVE-2026-74443","revision":null,"records":[{"revision":"b4a6c5a84a374629bb8d8fdcdadc656b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-74443","aliases":[],"title":"drm/vmwgfx: bound DMA command body size against suffix pointer","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: bound DMA command body size against suffix pointer\n\nvmw_cmd_dma() locates the DMA suffix at\n\n\t(unsigned long) &cmd->body + header->size - sizeof(*suffix)\n\nwithout checking that header->size is large enough to contain both\ncmd->body and the suffix. An undersized header makes the suffix\npointer underflow back into the previous command in the bounce\nbuffer. The verifier later writes suffix->maximumOffset, clobbering\nverified fields of an already-relocated earlier command -- a TOCTOU\non the device-visible command stream that lets one command rewrite\nanother's GMR id, surface id, or other authenticated fields.\n\nReject the command if the body is too small for the suffix to fit.","state":0,"publishedAt":"2026-08-15T12:26:50.826+00:00","modifiedAt":"2026-10-16T19:05:45.672+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4e4ddd47774313accc86b233d6ca2c6a9037a671\",\n \"lessThan\": \"eb20f418933bea53375843b27b4022c1810be63b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4e4ddd47774313accc86b233d6ca2c6a9037a671\",\n \"lessThan\": \"fcd1e56e7816b31a1050ccc67df722b20f6bb15d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4e4ddd47774313accc86b233d6ca2c6a9037a671\",\n \"lessThan\": \"a4a37080a5ac777b59306cfcdf854cc05d7604d4\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4e4ddd47774313accc86b233d6ca2c6a9037a671\",\n \"lessThan\": \"036e16ada95389bdc30f41068af04c1d0872fad0\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4e4ddd47774313accc86b233d6ca2c6a9037a671\",\n \"lessThan\": \"d5d7ada4e1296b00d89fe82b2ca850cc7809d6f7\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4e4ddd47774313accc86b233d6ca2c6a9037a671\",\n \"lessThan\": \"7e40e6120fb232a10b543ffd994e5c6d8f3a2cc6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4e4ddd47774313accc86b233d6ca2c6a9037a671\",\n \"lessThan\": \"9759da60e38d7b9db44dc92713e4e0391883d221\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4e4ddd47774313accc86b233d6ca2c6a9037a671\",\n \"lessThan\": \"f4f1db96bfd68b81053693ba53405b6f510ac16c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c\"\n ],\n \"versions\": [\n {\n \"version\": \"2.6.33\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"2.6.33\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.265\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.216\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.183\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.151\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.103\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.44\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1.8\",\n \"lessThanOrEqual\": \"7.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.2\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/eb20f418933bea53375843b27b4022c1810be63b","https://git.kernel.org/stable/c/fcd1e56e7816b31a1050ccc67df722b20f6bb15d","https://git.kernel.org/stable/c/a4a37080a5ac777b59306cfcdf854cc05d7604d4","https://git.kernel.org/stable/c/036e16ada95389bdc30f41068af04c1d0872fad0","https://git.kernel.org/stable/c/d5d7ada4e1296b00d89fe82b2ca850cc7809d6f7","https://git.kernel.org/stable/c/7e40e6120fb232a10b543ffd994e5c6d8f3a2cc6","https://git.kernel.org/stable/c/9759da60e38d7b9db44dc92713e4e0391883d221","https://git.kernel.org/stable/c/f4f1db96bfd68b81053693ba53405b6f510ac16c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74443","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74443","identifiers":["CVE-2026-74443"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-f975b42a7c2d46f6899c3d764d777217","complete":false,"records":13654,"lastAttemptAt":"2026-11-09T09:16:12.2541949+00:00","lastSuccessAt":"2026-11-09T09:16:12.249+00:00","error":"7 identifier lookups failed; latest failures include HTTP 403. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-09T09:16:12.249+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13699,"expectedIdentifiers":13706,"failedIdentifiers":7},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T09:04:02.9162191+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T09:04:02.9162191+00:00","lastSuccessAt":"2026-11-09T09:04:03.197028+00:00","error":null,"lastVerifiedAt":"2026-11-09T09:04:03.1970284+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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