linux linux-kernel CVE-2026-64559 is a vulnerability in Linux Kernel
Published on July 29, 2026

s390/pkey: Check length in PKEY_VERIFYPROTK ioctl
In the Linux kernel, the following vulnerability has been resolved: s390/pkey: Check length in PKEY_VERIFYPROTK ioctl Explicitly check the buffer length request structure provided by user-space and fail, if it exceeds the buffer size.

NVD


Products Associated with CVE-2026-64559

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Affected Versions

Linux: Linux: