dns_resolver: Null-terminate the right string

[ Upstream commit 640d7efe4c08f06c4ae5d31b79bd8740e7f6790a ]

*_result[len] is parsed as *(_result[len]) which is not at all what we
want to touch here.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: 84a7c0b1db1c ("dns_resolver: assure that dns_query() result is null-terminated")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/dns_resolver/dns_query.c b/net/dns_resolver/dns_query.c
index 6853d22..f005cc7 100644 (file)
--- a/net/dns_resolver/dns_query.c
+++ b/net/dns_resolver/dns_query.c
@@ -150,7 +150,7 @@ int dns_query(const char *type, const char *name, size_t namelen,
                goto put;
 
        memcpy(*_result, upayload->data, len);
-       *_result[len] = '\0';
+       (*_result)[len] = '\0';
 
        if (_expiry)
                *_expiry = rkey->expiry;