CVE-2026-80924

Summary

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

crypto: krb5 - use kfree_sensitive() for derived key buffers

crypto_krb5_prepare_encryption() and crypto_krb5_prepare_checksum() free the buffer holding the freshly derived keys with plain kfree(), leaving the key material behind in the freed slab object.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3936f02bf2d3308a7359dd37dd96cd60603d8170 < 731a5b6fb4c1705f9405d9029dd64ea81e336207affected
LinuxLinux3936f02bf2d3308a7359dd37dd96cd60603d8170 < 91b96dc9cc250cd16751f53de525cf3442ca0962affected
LinuxLinux3936f02bf2d3308a7359dd37dd96cd60603d8170 < a1bf79365794783b19f5b09e8a23f7ee311e8931affected
LinuxLinux3936f02bf2d3308a7359dd37dd96cd60603d8170 < f7d53dd3f267e46a784f219a75072f2f400d42b9affected
LinuxLinux6.15affected
LinuxLinux0 < 6.15unaffected
LinuxLinux6.18.49 <= 6.18.*unaffected
LinuxLinux7.1.13 <= 7.1.*unaffected
LinuxLinux7.2.3 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References