CVE-2026-64558

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.

Score

CVSS 3.1 7.8 High

Status

Received - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-07-29

Last modified

2026-10-19

Weaknesses

CWE-122

Affected products

• Linux Kernel (Linux)

References

• https://git.kernel.org/stable/c/02028a24e26d85262ab9c8fc4344e1f3503007fc
• https://git.kernel.org/stable/c/433e5e70cdc1edf382d28d08a885b22e2b98b7da
• https://git.kernel.org/stable/c/614aa0491c7a190556c2345dddee0b6f5ed90989
• https://git.kernel.org/stable/c/1ac287e2af9a9112fe271427ef45eceb26bce8b4