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KEYS: use kfree_sensitive with key 

key might contain private part of the key, so better use
kfree_sensitive to free it

Signed-off-by: Mahmoud Adam <mngyadam@amazon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Mahmoud Adam 2023-07-17 12:55:09 +00:00 committed by Herbert Xu
parent e22471c233
commit 9f3fa6bc4f
1 changed files with 4 additions and 4 deletions
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8
crypto/asymmetric_keys/public_key.c
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@ -42,7 +42,7 @@ static void public_key_describe(const struct key *asymmetric_key,
void public_key_free(struct public_key *key) void public_key_free(struct public_key *key)
{ {
if (key) { if (key) {
kfree(key->key); kfree_sensitive(key->key);
kfree(key->params); kfree(key->params);
kfree(key); kfree(key);
} }
@ -263,7 +263,7 @@ error_free_tfm:
else else
crypto_free_akcipher(tfm); crypto_free_akcipher(tfm);
error_free_key: error_free_key:
kfree(key); kfree_sensitive(key);
pr_devel("<==%s() = %d\n", __func__, ret); pr_devel("<==%s() = %d\n", __func__, ret);
return ret; return ret;
} }
@ -369,7 +369,7 @@ error_free_tfm:
else else
crypto_free_akcipher(tfm); crypto_free_akcipher(tfm);
error_free_key: error_free_key:
kfree(key); kfree_sensitive(key);
pr_devel("<==%s() = %d\n", __func__, ret); pr_devel("<==%s() = %d\n", __func__, ret);
return ret; return ret;
} }
@ -441,7 +441,7 @@ int public_key_verify_signature(const struct public_key *pkey,
sig->digest, sig->digest_size); sig->digest, sig->digest_size);
error_free_key: error_free_key:
kfree(key); kfree_sensitive(key);
error_free_tfm: error_free_tfm:
crypto_free_sig(tfm); crypto_free_sig(tfm);
pr_devel("<==%s() = %d\n", __func__, ret); pr_devel("<==%s() = %d\n", __func__, ret);