From: Jan Engelhardt Date: 2017-10-13 02:43:06.480980575 +0200 X-Upstream: reported resolve a potential buffer overflow when i > 9 [reg->len > 36]. expr/data_reg.c:69:27: warning: '%d' directive writing between 1 and 10 bytes into a region of size 2 [-Wformat-overflow=] sprintf(node_name, "data%d", i); --- src/expr/data_reg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: libnftnl-1.0.9/src/expr/data_reg.c =================================================================== --- libnftnl-1.0.9.orig/src/expr/data_reg.c +++ libnftnl-1.0.9/src/expr/data_reg.c @@ -59,7 +59,7 @@ static int nftnl_data_reg_verdict_json_p static int nftnl_data_reg_value_json_parse(union nftnl_data_reg *reg, json_t *data, struct nftnl_parse_err *err) { - char node_name[8] = {}; /* strlen("data256") + 1 == 8 */ + char node_name[16] = {}; /* strlen("data256") + 1 == 8 */ int ret, remain = sizeof(node_name), offset = 0, i; if (nftnl_jansson_parse_val(data, "len", NFTNL_TYPE_U8, ®->len, err) < 0)