32 lines
1.2 KiB
Diff
32 lines
1.2 KiB
Diff
From 25e7b99cc450490c38becb03d8bddd0199cfd3f9 Mon Sep 17 00:00:00 2001
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From: Pablo Neira Ayuso <pablo@netfilter.org>
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Date: Thu, 6 Jul 2023 10:26:39 +0200
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Subject: netlink_linearize: use div_round_up in byteorder length
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Use div_round_up() to calculate the byteorder length, otherwise fields
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that take % BITS_PER_BYTE != 0 are not considered by the byteorder
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expression.
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Reported-by: Florian Westphal <fw@strlen.de>
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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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---
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src/netlink_linearize.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/netlink_linearize.c b/src/netlink_linearize.c
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index 92f7e8e..237fb6d 100644
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--- a/src/netlink_linearize.c
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+++ b/src/netlink_linearize.c
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@@ -737,7 +737,7 @@ static void netlink_gen_unary(struct netlink_linearize_ctx *ctx,
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netlink_put_register(nle, NFTNL_EXPR_BYTEORDER_SREG, dreg);
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netlink_put_register(nle, NFTNL_EXPR_BYTEORDER_DREG, dreg);
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nftnl_expr_set_u32(nle, NFTNL_EXPR_BYTEORDER_LEN,
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- expr->len / BITS_PER_BYTE);
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+ div_round_up(expr->len, BITS_PER_BYTE));
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nftnl_expr_set_u32(nle, NFTNL_EXPR_BYTEORDER_SIZE,
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byte_size);
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nftnl_expr_set_u32(nle, NFTNL_EXPR_BYTEORDER_OP,
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--
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2.33.0
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