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.
References 4
https://git.kernel.org/stable/c/731a5b6fb4c1705f9405d9029dd64ea81e336207
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/91b96dc9cc250cd16751f53de525cf3442ca0962
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a1bf79365794783b19f5b09e8a23f7ee311e8931
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f7d53dd3f267e46a784f219a75072f2f400d42b9
416baaa9-dc9f-4396-8d5f-8c081fb06d67