From 47546208657f28007f41574c2d27a3fe760f987d Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 29 May 2019 14:01:52 -0700 Subject: [PATCH] keys: Reuse keyring_index_key::desc_len in lookup_user_key() When lookup_user_key() checks whether the key is possessed, it should use the key's existing index_key including the 'desc_len' field, rather than recomputing the 'desc_len'. This doesn't change the behavior; this way is just simpler and faster. Signed-off-by: Eric Biggers Signed-off-by: David Howells Reviewed-by: James Morris --- security/keys/process_keys.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c index ba5d317..39aaa214 100644 --- a/security/keys/process_keys.c +++ b/security/keys/process_keys.c @@ -688,9 +688,7 @@ try_again: key_ref = make_key_ref(key, 0); /* check to see if we possess the key */ - ctx.index_key.type = key->type; - ctx.index_key.description = key->description; - ctx.index_key.desc_len = strlen(key->description); + ctx.index_key = key->index_key; ctx.match_data.raw_data = key; kdebug("check possessed"); skey_ref = search_process_keyrings(&ctx); -- 2.7.4