PT-2026-65848 · Linux · Linux

CVE-2026-64558 · Published 2026-07-29 · Updated 2026-07-29

NVD

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.

Related Identifiers

CVE-2026-64558

Affected Products

Linux

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-64558 · Security Note
• https://git.kernel.org/stable/c/433e5e70cdc1edf382d28d08a885b22e2b98b7da · Note
• https://git.kernel.org/stable/c/614aa0491c7a190556c2345dddee0b6f5ed90989 · Note
• https://git.kernel.org/stable/c/1ac287e2af9a9112fe271427ef45eceb26bce8b4 · Note
• https://git.kernel.org/stable/c/02028a24e26d85262ab9c8fc4344e1f3503007fc · Note