diff options
Diffstat (limited to 'src/netlink_linearize.c')
| -rw-r--r-- | src/netlink_linearize.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/netlink_linearize.c b/src/netlink_linearize.c index d8b41a08..50dbd36c 100644 --- a/src/netlink_linearize.c +++ b/src/netlink_linearize.c @@ -695,10 +695,10 @@ static void netlink_gen_bitwise(struct netlink_linearize_ctx *ctx, const struct expr *expr, enum nft_registers dreg) { + struct expr *binops[NFT_MAX_EXPR_RECURSION]; struct nftnl_expr *nle; struct nft_data_linearize nld; struct expr *left, *i; - struct expr *binops[16]; mpz_t mask, xor, val, tmp; unsigned int len; int n = 0; @@ -710,8 +710,11 @@ static void netlink_gen_bitwise(struct netlink_linearize_ctx *ctx, binops[n++] = left = (struct expr *) expr; while (left->etype == EXPR_BINOP && left->left != NULL && - (left->op == OP_AND || left->op == OP_OR || left->op == OP_XOR)) + (left->op == OP_AND || left->op == OP_OR || left->op == OP_XOR)) { + if (n == array_size(binops)) + BUG("NFT_MAX_EXPR_RECURSION limit reached"); binops[n++] = left = left->left; + } netlink_gen_expr(ctx, binops[--n], dreg); |