crypto: user - fix info leaks in report API

[mirror_ubuntu-bionic-kernel.git] / crypto / aead.c

diff --git a/crypto/aead.c b/crypto/aead.c
index 4d04e12ffde837c17a7677d8ef1ab05bf26f3588..547491e35c63733f15ccb4697cf83109128125aa 100644 (file)
--- a/crypto/aead.c
+++ b/crypto/aead.c
@@ -117,9 +117,8 @@ static int crypto_aead_report(struct sk_buff *skb, struct crypto_alg *alg)
        struct crypto_report_aead raead;
        struct aead_alg *aead = &alg->cra_aead;
 
-       snprintf(raead.type, CRYPTO_MAX_ALG_NAME, "%s", "aead");
-       snprintf(raead.geniv, CRYPTO_MAX_ALG_NAME, "%s",
-                aead->geniv ?: "<built-in>");
+       strncpy(raead.type, "aead", sizeof(raead.type));
+       strncpy(raead.geniv, aead->geniv ?: "<built-in>", sizeof(raead.geniv));
 
        raead.blocksize = alg->cra_blocksize;
        raead.maxauthsize = aead->maxauthsize;
@@ -203,8 +202,8 @@ static int crypto_nivaead_report(struct sk_buff *skb, struct crypto_alg *alg)
        struct crypto_report_aead raead;
        struct aead_alg *aead = &alg->cra_aead;
 
-       snprintf(raead.type, CRYPTO_MAX_ALG_NAME, "%s", "nivaead");
-       snprintf(raead.geniv, CRYPTO_MAX_ALG_NAME, "%s", aead->geniv);
+       strncpy(raead.type, "nivaead", sizeof(raead.type));
+       strncpy(raead.geniv, aead->geniv, sizeof(raead.geniv));
 
        raead.blocksize = alg->cra_blocksize;
        raead.maxauthsize = aead->maxauthsize;