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-rw-r--r--security/keys/request_key_auth.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/security/keys/request_key_auth.c b/security/keys/request_key_auth.c
index cbf58a91b00a..510f7be73a2d 100644
--- a/security/keys/request_key_auth.c
+++ b/security/keys/request_key_auth.c
@@ -127,6 +127,7 @@ static void request_key_auth_destroy(struct key *key)
}
key_put(rka->target_key);
+ kfree(rka->callout_info);
kfree(rka);
} /* end request_key_auth_destroy() */
@@ -151,6 +152,12 @@ struct key *request_key_auth_new(struct key *target, const char *callout_info)
kleave(" = -ENOMEM");
return ERR_PTR(-ENOMEM);
}
+ rka->callout_info = kmalloc(strlen(callout_info) + 1, GFP_KERNEL);
+ if (!rka->callout_info) {
+ kleave(" = -ENOMEM");
+ kfree(rka);
+ return ERR_PTR(-ENOMEM);
+ }
/* see if the calling process is already servicing the key request of
* another process */
@@ -179,7 +186,7 @@ struct key *request_key_auth_new(struct key *target, const char *callout_info)
}
rka->target_key = key_get(target);
- rka->callout_info = callout_info;
+ strcpy(rka->callout_info, callout_info);
/* allocate the auth key */
sprintf(desc, "%x", target->serial);
@@ -203,6 +210,7 @@ struct key *request_key_auth_new(struct key *target, const char *callout_info)
auth_key_revoked:
up_read(&current->request_key_auth->sem);
+ kfree(rka->callout_info);
kfree(rka);
kleave("= -EKEYREVOKED");
return ERR_PTR(-EKEYREVOKED);
@@ -212,6 +220,7 @@ error_inst:
key_put(authkey);
error_alloc:
key_put(rka->target_key);
+ kfree(rka->callout_info);
kfree(rka);
kleave("= %d", ret);
return ERR_PTR(ret);