High severity7.8NVD Advisory· Published Jul 29, 2026· Updated Aug 17, 2026
CVE-2026-64558
CVE-2026-64558
Description
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.
Affected products
3- osv-coords2 versions
>= 6.12.0, < 6.12.97+ 1 more
- (no CPE)range: >= 6.12.0, < 6.12.97
- (no CPE)range: < 7.1.7-1.1
Patches
Vulnerability mechanics
References
4News mentions
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