keys: Garbage collect keys for which the domain has been removed

If a key operation domain (such as a network namespace) has been removed
then attempt to garbage collect all the keys that use it.

Signed-off-by: David Howells <dhowells@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/security/keys/internal.h b/security/keys/internal.h
index d3a9439e2386..5a561f5f199e 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -209,7 +209,8 @@ static inline bool key_is_dead(const struct key *key, time64_t limit)
         return
                 key->flags & ((1 << KEY_FLAG_DEAD) |
                               (1 << KEY_FLAG_INVALIDATED)) ||
-                (key->expiry > 0 && key->expiry <= limit);
+                (key->expiry > 0 && key->expiry <= limit) ||
+                key->domain_tag->removed;
 }
 
 /*