From c359c4157cf0d852387aff2f2d83fef039aadc2c Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 4 Nov 2013 15:58:56 +0300
Subject: [PATCH] netfilter: nft_compat: use _safe version of list_for_each
We need to use the _safe version of list_for_each_entry() here otherwise
we have a use after free bug.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
net/netfilter/nft_compat.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index 4811f762e060..a82667c64729 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -634,9 +634,9 @@ nft_match_select_ops(const struct nft_ctx *ctx,
static void nft_match_release(void)
{
- struct nft_xt *nft_match;
+ struct nft_xt *nft_match, *tmp;
- list_for_each_entry(nft_match, &nft_match_list, head)
+ list_for_each_entry_safe(nft_match, tmp, &nft_match_list, head)
kfree(nft_match);
}
@@ -705,9 +705,9 @@ nft_target_select_ops(const struct nft_ctx *ctx,
static void nft_target_release(void)
{
- struct nft_xt *nft_target;
+ struct nft_xt *nft_target, *tmp;
- list_for_each_entry(nft_target, &nft_target_list, head)
+ list_for_each_entry_safe(nft_target, tmp, &nft_target_list, head)
kfree(nft_target);
}
--
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