{"id":"CVE-2026-89730","revision":null,"records":[{"revision":"152bdab9eb4745efa775f437832624e9","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89730","aliases":[],"title":"fpga: altera-cvp: Avoid out-of-bounds read in trailing byte write","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfpga: altera-cvp: Avoid out-of-bounds read in trailing byte write\n\nThe trailing byte path in altera_cvp_send_block() dereferences a u32\npointer even when only 1-3 bytes remain in the input buffer. If the buffer\nends at a page or scatterlist boundary, this can read past the valid image\ndata and fault.\n\nCopy the remaining bytes into a zero-initialized u32 before writing the\nfinal word so only valid bytes are read from the input buffer.","state":0,"publishedAt":"2026-09-11T19:46:40.581+00:00","modifiedAt":"2026-10-19T08:51:43.578+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/fpga/altera-cvp.c\"\n ],\n \"versions\": [\n {\n \"version\": \"34d1dc17ce978ae76e676d401b48fe9d004aa948\",\n \"lessThan\": \"447b3c893987a0106a65f04b62ec3271892e9d98\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"34d1dc17ce978ae76e676d401b48fe9d004aa948\",\n \"lessThan\": \"3b8938f5fbcf4a918785f9cb4b108782eb4ea717\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"34d1dc17ce978ae76e676d401b48fe9d004aa948\",\n \"lessThan\": \"2564ac3d3b8b47cd9692a5bf42d668ed7218b54e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"34d1dc17ce978ae76e676d401b48fe9d004aa948\",\n \"lessThan\": \"8f3365ed2a5db2ac95ab70a6c47561db39d24537\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"34d1dc17ce978ae76e676d401b48fe9d004aa948\",\n \"lessThan\": \"b138bc665e21d4422382ab43aebdf0a2b7bb9cb3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"34d1dc17ce978ae76e676d401b48fe9d004aa948\",\n \"lessThan\": \"827ec385458adeeda651de2b6f3537e386b1a8d9\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"34d1dc17ce978ae76e676d401b48fe9d004aa948\",\n \"lessThan\": \"4dc1051939e499c838229af035464a5fc7671198\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"34d1dc17ce978ae76e676d401b48fe9d004aa948\",\n \"lessThan\": \"9da70a43b5fea60d758137f7f0ccfe19356cb5bb\",\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/fpga/altera-cvp.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4.14\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"4.14\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.270\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.221\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.188\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.157\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.109\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.50\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.2.4\",\n \"lessThanOrEqual\": \"7.2.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.3\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/447b3c893987a0106a65f04b62ec3271892e9d98","https://git.kernel.org/stable/c/3b8938f5fbcf4a918785f9cb4b108782eb4ea717","https://git.kernel.org/stable/c/2564ac3d3b8b47cd9692a5bf42d668ed7218b54e","https://git.kernel.org/stable/c/8f3365ed2a5db2ac95ab70a6c47561db39d24537","https://git.kernel.org/stable/c/b138bc665e21d4422382ab43aebdf0a2b7bb9cb3","https://git.kernel.org/stable/c/827ec385458adeeda651de2b6f3537e386b1a8d9","https://git.kernel.org/stable/c/4dc1051939e499c838229af035464a5fc7671198","https://git.kernel.org/stable/c/9da70a43b5fea60d758137f7f0ccfe19356cb5bb"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89730","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89730","identifiers":["CVE-2026-89730"]},"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-0e1130a95bab4b43bc10624fd5ee853a","complete":false,"records":13654,"lastAttemptAt":"2026-11-09T04:16:03.8367163+00:00","lastSuccessAt":"2026-11-09T04:16:03.832+00:00","error":"8 identifier lookups failed; latest failures include HTTP 403. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-09T04:16:03.832+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13653,"expectedIdentifiers":13706,"failedIdentifiers":8},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T04:03:51.7811525+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T04:03:51.7811525+00:00","lastSuccessAt":"2026-11-09T04:03:51.948408+00:00","error":null,"lastVerifiedAt":"2026-11-09T04:03:51.9484081+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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