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security/keys: use kvfree_sensitive()

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Use kvfree_sensitive() instead of open-coding it.

Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Ben Boeckel <mathstuf@gmail.com>
This commit is contained in:
Denis Efremov 2020-08-27 10:29:23 +03:00 committed by David Howells
parent 8fe62e0c0e
commit 272a121940
1 changed files with 3 additions and 6 deletions
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9
security/keys/big_key.c
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@ -121,8 +121,7 @@ int big_key_preparse(struct key_preparsed_payload *prep)
*path = file->f_path;
path_get(path);
fput(file);
memzero_explicit(buf, enclen);
kvfree(buf);
kvfree_sensitive(buf, enclen);
} else {
/* Just store the data in a buffer */
void *data = kmalloc(datalen, GFP_KERNEL);
@ -140,8 +139,7 @@ err_fput:
err_enckey:
kfree_sensitive(enckey);
error:
memzero_explicit(buf, enclen);
kvfree(buf);
kvfree_sensitive(buf, enclen);
return ret;
}
@ -273,8 +271,7 @@ long big_key_read(const struct key *key, char *buffer, size_t buflen)
err_fput:
fput(file);
error:
memzero_explicit(buf, enclen);
kvfree(buf);
kvfree_sensitive(buf, enclen);
} else {
ret = datalen;
memcpy(buffer, key->payload.data[big_key_data], datalen);