keys: Timestamp new keys

BugLink: https://bugs.launchpad.net/bugs/1863019
[ Upstream commit 7c1857bdbdf1e4c541e45eab477ee23ed4333ea4 ]

Set the timestamp on new keys rather than leaving it unset.

Fixes: 31d5a79d7f3d ("KEYS: Do LRU discard in full keyrings")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/security/keys/key.c b/security/keys/key.c
index 249a6da4d27701be2ba416e8451a7edea0cbd5b4..749a5cf27a192efca427cfba758d49d89b199b0b 100644 (file)
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -297,6 +297,7 @@ struct key *key_alloc(struct key_type *type, const char *desc,
        key->gid = gid;
        key->perm = perm;
        key->restrict_link = restrict_link;
+       key->last_used_at = ktime_get_real_seconds();
 
        if (!(flags & KEY_ALLOC_NOT_IN_QUOTA))
                key->flags |= 1 << KEY_FLAG_IN_QUOTA;