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-rw-r--r--security/keys/keyctl.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index fea262860ea0..a6516a64b297 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -49,9 +49,6 @@ asmlinkage long sys_add_key(const char __user *_type,
49 goto error; 49 goto error;
50 type[31] = '\0'; 50 type[31] = '\0';
51 51
52 if (!type[0])
53 goto error;
54
55 ret = -EPERM; 52 ret = -EPERM;
56 if (type[0] == '.') 53 if (type[0] == '.')
57 goto error; 54 goto error;
@@ -144,6 +141,10 @@ asmlinkage long sys_request_key(const char __user *_type,
144 goto error; 141 goto error;
145 type[31] = '\0'; 142 type[31] = '\0';
146 143
144 ret = -EPERM;
145 if (type[0] == '.')
146 goto error;
147
147 /* pull the description into kernel space */ 148 /* pull the description into kernel space */
148 ret = -EFAULT; 149 ret = -EFAULT;
149 dlen = strnlen_user(_description, PAGE_SIZE - 1); 150 dlen = strnlen_user(_description, PAGE_SIZE - 1);
@@ -362,7 +363,7 @@ long keyctl_revoke_key(key_serial_t id)
362 363
363 key_put(key); 364 key_put(key);
364 error: 365 error:
365 return 0; 366 return ret;
366 367
367} /* end keyctl_revoke_key() */ 368} /* end keyctl_revoke_key() */
368 369
@@ -685,6 +686,8 @@ long keyctl_read_key(key_serial_t keyid, char __user *buffer, size_t buflen)
685 goto can_read_key2; 686 goto can_read_key2;
686 687
687 ret = PTR_ERR(skey); 688 ret = PTR_ERR(skey);
689 if (ret == -EAGAIN)
690 ret = -EACCES;
688 goto error2; 691 goto error2;
689 } 692 }
690 693