git.kernel.org
https://git.kernel.org/stable/c/06afe425d5283b9764303de47f554da5a808ce8a CVE-2026-68452
HIGH
s390/zcrypt: Validate length for CCA AES cipher key requests
Record summary
CVE-2026-68452 has a selected CVSS score of 7.8 (high).
Description
In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA AES cipher key requests cca_cipher2protkey() derives the copy length for the CPRB parameter block directly from the length field in the key token. Reject the request early if the token length exceeds the available space in the parameter block.
Description source: CVE List
Affected products and versions
1| Product | Source | Version range | Status |
|---|---|---|---|
LinuxBrowse Linux / LinuxDefault status: unaffected, affected | CVE List | 4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd to < 406b317ea2b501f6f5eca1264293c9399a73a778 | affected |
| 4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd to < 4fc46deceda076d429ef3fab2ccf8d96629ebd23 | affected | ||
| 4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd to < ad93a1f1a45652478c0cf4eb029114e03af57f3b | affected | ||
| 4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd to < 3859f630b674801a00bca39bc451f52288591f65 | affected | ||
| 4bc123b18ce6ae6c42c69d0456b5acbd2f7bc8bd to < 06afe425d5283b9764303de47f554da5a808ce8a | affected | ||
| 5.4 | affected | ||
| Before 5.4 | unaffected | ||
| 6.6.151 to ≤ 6.6.* | unaffected | ||
| 6.12.103 to ≤ 6.12.* | unaffected | ||
| 6.18.44 to ≤ 6.18.* | unaffected | ||
| 7.1.8 to ≤ 7.1.* | unaffected | ||
| 7.2-rc6 to ≤ * | unaffected |
References
6git.kernel.org
https://git.kernel.org/stable/c/3859f630b674801a00bca39bc451f52288591f65 git.kernel.org
https://git.kernel.org/stable/c/406b317ea2b501f6f5eca1264293c9399a73a778 git.kernel.org
https://git.kernel.org/stable/c/4fc46deceda076d429ef3fab2ccf8d96629ebd23 git.kernel.org
https://git.kernel.org/stable/c/ad93a1f1a45652478c0cf4eb029114e03af57f3b nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-68452