{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68452", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.395Z", "datePublished": "2026-08-13T13:59:54.840Z", "dateUpdated": "2026-08-13T13:59:54.840Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-13T13:59:54.840Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/zcrypt: Validate length for CCA AES cipher key requests\n\ncca_cipher2protkey() derives the copy length for the CPRB parameter\nblock directly from the length field in the key token. Reject the\nrequest early if the token length exceeds the available space in the\nparameter block."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/s390/crypto/zcrypt_ccamisc.c"], "versions": [{"version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd", "lessThan": "406b317ea2b501f6f5eca1264293c9399a73a778", "status": "affected", "versionType": "git"}, {"version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd", "lessThan": "4fc46deceda076d429ef3fab2ccf8d96629ebd23", "status": "affected", "versionType": "git"}, {"version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd", "lessThan": "ad93a1f1a45652478c0cf4eb029114e03af57f3b", "status": "affected", "versionType": "git"}, {"version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd", "lessThan": "3859f630b674801a00bca39bc451f52288591f65", "status": "affected", "versionType": "git"}, {"version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd", "lessThan": "06afe425d5283b9764303de47f554da5a808ce8a", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/s390/crypto/zcrypt_ccamisc.c"], "versions": [{"version": "5.4", "status": "affected"}, {"version": "0", "lessThan": "5.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.151", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.103", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.44", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.8", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc6", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.6.151"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.12.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "6.18.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "7.1.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "7.2-rc6"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/406b317ea2b501f6f5eca1264293c9399a73a778"}, {"url": "https://git.kernel.org/stable/c/4fc46deceda076d429ef3fab2ccf8d96629ebd23"}, {"url": "https://git.kernel.org/stable/c/ad93a1f1a45652478c0cf4eb029114e03af57f3b"}, {"url": "https://git.kernel.org/stable/c/3859f630b674801a00bca39bc451f52288591f65"}, {"url": "https://git.kernel.org/stable/c/06afe425d5283b9764303de47f554da5a808ce8a"}], "title": "s390/zcrypt: Validate length for CCA AES cipher key requests", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/s390/crypto/zcrypt_ccamisc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "406b317ea2b501f6f5eca1264293c9399a73a778", "status": "affected", "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd", "versionType": "git"}, {"lessThan": "4fc46deceda076d429ef3fab2ccf8d96629ebd23", "status": "affected", "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd", "versionType": "git"}, {"lessThan": "ad93a1f1a45652478c0cf4eb029114e03af57f3b", "status": "affected", "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd", "versionType": "git"}, {"lessThan": "3859f630b674801a00bca39bc451f52288591f65", "status": "affected", "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd", "versionType": "git"}, {"lessThan": "06afe425d5283b9764303de47f554da5a808ce8a", "status": "affected", "version": "4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/s390/crypto/zcrypt_ccamisc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.4"}, {"lessThan": "5.4", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.151", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.103", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.44", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc6", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/zcrypt: Validate length for CCA AES cipher key requests\n\ncca_cipher2protkey() derives the copy length for the CPRB parameter\nblock directly from the length field in the key token. Reject the\nrequest early if the token length exceeds the available space in the\nparameter block."}], "id": "CVE-2026-68452", "lastModified": "2026-08-13T15:19:57.970", "metrics": {}, "published": "2026-08-13T15:19:57.970", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/06afe425d5283b9764303de47f554da5a808ce8a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3859f630b674801a00bca39bc451f52288591f65"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/406b317ea2b501f6f5eca1264293c9399a73a778"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4fc46deceda076d429ef3fab2ccf8d96629ebd23"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ad93a1f1a45652478c0cf4eb029114e03af57f3b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd,406b317ea2b501f6f5eca1264293c9399a73a778)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd,4fc46deceda076d429ef3fab2ccf8d96629ebd23)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd,ad93a1f1a45652478c0cf4eb029114e03af57f3b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd,3859f630b674801a00bca39bc451f52288591f65)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd,06afe425d5283b9764303de47f554da5a808ce8a)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.4"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.4)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.151,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.103,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.44,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.8,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc6,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-13T16:30:03.493453+00:00", "updated": "2026-08-13T21:15:02.891316+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-120", "CWE-665"]}