CVE-2026-64558

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux8fcc231ce3bea12b78bb94b280cdc03cff342435 < 02028a24e26d85262ab9c8fc4344e1f3503007fcaffected
LinuxLinux8fcc231ce3bea12b78bb94b280cdc03cff342435 < 433e5e70cdc1edf382d28d08a885b22e2b98b7daaffected
LinuxLinux8fcc231ce3bea12b78bb94b280cdc03cff342435 < 614aa0491c7a190556c2345dddee0b6f5ed90989affected
LinuxLinux8fcc231ce3bea12b78bb94b280cdc03cff342435 < 1ac287e2af9a9112fe271427ef45eceb26bce8b4affected
LinuxLinux6.12affected
LinuxLinux0 < 6.12unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2-rc1 <= *unaffected

Weaknesses

References