34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
From f6338ac2776094b3fc27227511de53b5f96be16d Mon Sep 17 00:00:00 2001
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From: Markus Boehme <markubo@amazon.com>
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Date: Mon, 3 Apr 2023 23:13:47 +0200
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Subject: [PATCH] ip6tables: Fix checking existence of rule
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Pass the proper entry size when creating a match mask for checking the
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existence of a rule. Failing to do so causes wrong results.
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Reported-by: Jonathan Caicedo <jonathan@jcaicedo.com>
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Fixes: eb2546a846776 ("xshared: Share make_delete_mask() between ip{,6}tables")
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Signed-off-by: Markus Boehme <markubo@amazon.com>
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Signed-off-by: Phil Sutter <phil@nwl.cc>
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(cherry picked from commit 78850e7dba64a949c440dbdbe557f59409c6db48)
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---
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iptables/ip6tables.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/iptables/ip6tables.c b/iptables/ip6tables.c
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index 345af4519bfe7..9afc32c1a21ed 100644
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--- a/iptables/ip6tables.c
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+++ b/iptables/ip6tables.c
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@@ -331,7 +331,7 @@ check_entry(const xt_chainlabel chain, struct ip6t_entry *fw,
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int ret = 1;
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unsigned char *mask;
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- mask = make_delete_mask(matches, target, sizeof(fw));
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+ mask = make_delete_mask(matches, target, sizeof(*fw));
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for (i = 0; i < nsaddrs; i++) {
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fw->ipv6.src = saddrs[i];
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fw->ipv6.smsk = smasks[i];
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--
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2.40.0
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