In dns_resolver_preparse(), do not NUL-terminate ->data and allocate one byte less. The NUL terminator is never used and only ->datalen bytes are accessed. Signed-off-by: Thorsten Blum --- No changes in patch 1/2. --- net/dns_resolver/dns_key.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/dns_resolver/dns_key.c b/net/dns_resolver/dns_key.c index c3c8c3240ef9..451247864a63 100644 --- a/net/dns_resolver/dns_key.c +++ b/net/dns_resolver/dns_key.c @@ -203,7 +203,7 @@ dns_resolver_preparse(struct key_preparsed_payload *prep) kdebug("store result"); prep->quotalen = result_len; - upayload = kmalloc_flex(*upayload, data, result_len + 1); + upayload = kmalloc_flex(*upayload, data, result_len); if (!upayload) { kleave(" = -ENOMEM"); return -ENOMEM; @@ -211,7 +211,6 @@ dns_resolver_preparse(struct key_preparsed_payload *prep) upayload->datalen = result_len; memcpy(upayload->data, data, result_len); - upayload->data[result_len] = '\0'; prep->payload.data[dns_key_data] = upayload; kleave(" = 0");