iptables/SOURCES/0096-extensions-MARK-Sanitize-MARK_xlate.patch

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2023-10-17 13:52:06 +00:00
From ce7198e207384f91d510b50e64305de3e05c2c61 Mon Sep 17 00:00:00 2001
From: Phil Sutter <phil@nwl.cc>
Date: Thu, 17 Nov 2022 16:01:11 +0100
Subject: [PATCH] extensions: MARK: Sanitize MARK_xlate()
Since markinfo->mode might contain unexpected values, add a default case
returning zero.
Fixes: afefc7a134ca0 ("extensions: libxt_MARK: Add translation for revision 1 to nft")
Signed-off-by: Phil Sutter <phil@nwl.cc>
(cherry picked from commit c4fc6440a6f39606e38744bfc827852bb68829f4)
---
extensions/libxt_MARK.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/extensions/libxt_MARK.c b/extensions/libxt_MARK.c
index 1536563d0f4c7..100f6a38996ac 100644
--- a/extensions/libxt_MARK.c
+++ b/extensions/libxt_MARK.c
@@ -366,6 +366,8 @@ static int MARK_xlate(struct xt_xlate *xl,
case XT_MARK_OR:
xt_xlate_add(xl, "mark or 0x%x ", (uint32_t)markinfo->mark);
break;
+ default:
+ return 0;
}
return 1;
--
2.40.0