CVE-2026-64558 — Vulnerability intelligence
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Published:
- CVSS
- 7.8
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
In the Linux kernel, the following vulnerability has been resolved:
s390/pkey: Check length in pkey_pckmo handler implementation
Explicitly check the length of the target buffer in the pkey_pckmo
implementation of the key_to_protkey() handler function. The handler
function fails, if the generated output data exceeds the length of the
provided target buffer.