The call to netlink_get_register() might return NULL, catch this before
dereferencing the pointer.
Fixes: db59a5c1204c9 ("netlink_delinearize: fix decoding of concat data element")
Signed-off-by: Phil Sutter <phil@xxxxxx>
---
src/netlink_delinearize.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/netlink_delinearize.c b/src/netlink_delinearize.c
index f4ab476e03455..00221505f2899 100644
--- a/src/netlink_delinearize.c
+++ b/src/netlink_delinearize.c
@@ -1749,7 +1749,7 @@ static void netlink_parse_dynset(struct netlink_parse_ctx *ctx,
sreg_data = netlink_parse_register(nle, NFTNL_EXPR_DYNSET_SREG_DATA);
expr_data = netlink_get_register(ctx, loc, sreg_data);
- if (expr_data->len < set->data->len) {
+ if (expr_data && expr_data->len < set->data->len) {
expr_free(expr_data);
expr_data = netlink_parse_concat_expr(ctx, loc, sreg_data, set->data->len);
if (expr_data == NULL)
--
2.38.0
