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-rw-r--r--security/keys/keyring.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 8177010174f7..238aa172f25b 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -628,6 +628,10 @@ static bool search_nested_keyrings(struct key *keyring,
ctx->index_key.type->name,
ctx->index_key.description);
+#define STATE_CHECKS (KEYRING_SEARCH_NO_STATE_CHECK | KEYRING_SEARCH_DO_STATE_CHECK)
+ BUG_ON((ctx->flags & STATE_CHECKS) == 0 ||
+ (ctx->flags & STATE_CHECKS) == STATE_CHECKS);
+
if (ctx->index_key.description)
ctx->index_key.desc_len = strlen(ctx->index_key.description);
@@ -637,7 +641,6 @@ static bool search_nested_keyrings(struct key *keyring,
if (ctx->match_data.lookup_type == KEYRING_SEARCH_LOOKUP_ITERATE ||
keyring_compare_object(keyring, &ctx->index_key)) {
ctx->skipped_ret = 2;
- ctx->flags |= KEYRING_SEARCH_DO_STATE_CHECK;
switch (ctx->iterator(keyring_key_to_ptr(keyring), ctx)) {
case 1:
goto found;
@@ -649,8 +652,6 @@ static bool search_nested_keyrings(struct key *keyring,
}
ctx->skipped_ret = 0;
- if (ctx->flags & KEYRING_SEARCH_NO_STATE_CHECK)
- ctx->flags &= ~KEYRING_SEARCH_DO_STATE_CHECK;
/* Start processing a new keyring */
descend_to_keyring: