CVE-2026-64208

Summary

In the Linux kernel, the following vulnerability has been resolved:

crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-verify length checks

Change the krb5 crypto library to provide facilities to precheck the length of the message about to be decrypted or verified.

Fix AF_RXRPC to make use of this to validate DATA packets secured with RxGK.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a < 585f9f6aef5c4542ac9d6ec45cd7dbc7df9af3ffaffected
LinuxLinux9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a < 9217017f4bce53dddb8d547837f1f707045d64adaffected
LinuxLinux9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a < 2b50aceafe6606ea52ed42aadd1b4d44a188aadeaffected
LinuxLinux6.16affected
LinuxLinux0 < 6.16unaffected
LinuxLinux6.18.34 <= 6.18.*unaffected
LinuxLinux7.0.11 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References