kernel: Null pointer dereference in search_keyring

A flaw was found that can be triggered in keyringsearchiterator in keyring.c if type-match is NULL. A local user could use this flaw to crash the system or, potentially, escalate their privileges...

NULL Pointer Dereference

kernel is vulnerable to denial of service DoS. The vulnerability exists in keyringsearchiterator in keyring.c if type-match is NULL...