netfilter: nf_tables: fix oob access

[mirror_ubuntu-artful-kernel.git] / net / netfilter / nf_tables_api.c

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index a019a87e58ee8151620eb3d8500979d02dba54c1..0db5f9782265ebb033f10d07da815495e8a7d278 100644 (file)
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -2115,7 +2115,7 @@ static void nf_tables_rule_destroy(const struct nft_ctx *ctx,
         * is called on error from nf_tables_newrule().
         */
        expr = nft_expr_first(rule);
-       while (expr->ops && expr != nft_expr_last(rule)) {
+       while (expr != nft_expr_last(rule) && expr->ops) {
                nf_tables_expr_destroy(ctx, expr);
                expr = nft_expr_next(expr);
        }