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-rw-r--r--security/keys/request_key.c36
1 files changed, 29 insertions, 7 deletions
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 90c1506d007c..e6dd366d43a3 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -129,7 +129,7 @@ static struct key *__request_key_construction(struct key_type *type,
129 129
130 /* create a key and add it to the queue */ 130 /* create a key and add it to the queue */
131 key = key_alloc(type, description, 131 key = key_alloc(type, description,
132 current->fsuid, current->fsgid, KEY_USR_ALL, 0); 132 current->fsuid, current->fsgid, KEY_POS_ALL, 0);
133 if (IS_ERR(key)) 133 if (IS_ERR(key))
134 goto alloc_failed; 134 goto alloc_failed;
135 135
@@ -365,14 +365,24 @@ struct key *request_key_and_link(struct key_type *type,
365{ 365{
366 struct key_user *user; 366 struct key_user *user;
367 struct key *key; 367 struct key *key;
368 key_ref_t key_ref;
368 369
369 kenter("%s,%s,%s,%p", 370 kenter("%s,%s,%s,%p",
370 type->name, description, callout_info, dest_keyring); 371 type->name, description, callout_info, dest_keyring);
371 372
372 /* search all the process keyrings for a key */ 373 /* search all the process keyrings for a key */
373 key = search_process_keyrings(type, description, type->match, current); 374 key_ref = search_process_keyrings(type, description, type->match,
375 current);
374 376
375 if (PTR_ERR(key) == -EAGAIN) { 377 kdebug("search 1: %p", key_ref);
378
379 if (!IS_ERR(key_ref)) {
380 key = key_ref_to_ptr(key_ref);
381 }
382 else if (PTR_ERR(key_ref) != -EAGAIN) {
383 key = ERR_PTR(PTR_ERR(key_ref));
384 }
385 else {
376 /* the search failed, but the keyrings were searchable, so we 386 /* the search failed, but the keyrings were searchable, so we
377 * should consult userspace if we can */ 387 * should consult userspace if we can */
378 key = ERR_PTR(-ENOKEY); 388 key = ERR_PTR(-ENOKEY);
@@ -384,7 +394,7 @@ struct key *request_key_and_link(struct key_type *type,
384 if (!user) 394 if (!user)
385 goto nomem; 395 goto nomem;
386 396
387 do { 397 for (;;) {
388 if (signal_pending(current)) 398 if (signal_pending(current))
389 goto interrupted; 399 goto interrupted;
390 400
@@ -397,10 +407,22 @@ struct key *request_key_and_link(struct key_type *type,
397 407
398 /* someone else made the key we want, so we need to 408 /* someone else made the key we want, so we need to
399 * search again as it might now be available to us */ 409 * search again as it might now be available to us */
400 key = search_process_keyrings(type, description, 410 key_ref = search_process_keyrings(type, description,
401 type->match, current); 411 type->match,
412 current);
413
414 kdebug("search 2: %p", key_ref);
402 415
403 } while (PTR_ERR(key) == -EAGAIN); 416 if (!IS_ERR(key_ref)) {
417 key = key_ref_to_ptr(key_ref);
418 break;
419 }
420
421 if (PTR_ERR(key_ref) != -EAGAIN) {
422 key = ERR_PTR(PTR_ERR(key_ref));
423 break;
424 }
425 }
404 426
405 key_user_put(user); 427 key_user_put(user);
406 428