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Diffstat (limited to 'crypto/algapi.c')
-rw-r--r--crypto/algapi.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/crypto/algapi.c b/crypto/algapi.c
index 38aa9e994703..d9559609b525 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -439,13 +439,15 @@ EXPORT_SYMBOL_GPL(crypto_unregister_notifier);
struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb)
{
- struct rtattr *rta = tb[CRYPTOA_TYPE - 1];
+ struct rtattr *rta = tb[0];
struct crypto_attr_type *algt;
if (!rta)
return ERR_PTR(-ENOENT);
if (RTA_PAYLOAD(rta) < sizeof(*algt))
return ERR_PTR(-EINVAL);
+ if (rta->rta_type != CRYPTOA_TYPE)
+ return ERR_PTR(-EINVAL);
algt = RTA_DATA(rta);
@@ -470,13 +472,15 @@ EXPORT_SYMBOL_GPL(crypto_check_attr_type);
struct crypto_alg *crypto_get_attr_alg(struct rtattr **tb, u32 type, u32 mask)
{
- struct rtattr *rta = tb[CRYPTOA_ALG - 1];
+ struct rtattr *rta = tb[1];
struct crypto_attr_alg *alga;
if (!rta)
return ERR_PTR(-ENOENT);
if (RTA_PAYLOAD(rta) < sizeof(*alga))
return ERR_PTR(-EINVAL);
+ if (rta->rta_type != CRYPTOA_ALG)
+ return ERR_PTR(-EINVAL);
alga = RTA_DATA(rta);
alga->name[CRYPTO_MAX_ALG_NAME - 1] = 0;