This is a note to let you know that I've just added the patch titled
netfilter: nft_set_pipapo: skip inactive elements during set walk
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
netfilter-nft_set_pipapo-skip-inactive-elements-during-set-walk.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 317eb9685095678f2c9f5a8189de698c5354316a Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@xxxxxxxxx>
Date: Fri, 1 Dec 2023 15:47:13 +0100
Subject: netfilter: nft_set_pipapo: skip inactive elements during set walk
From: Florian Westphal <fw@xxxxxxxxx>
commit 317eb9685095678f2c9f5a8189de698c5354316a upstream.
Otherwise set elements can be deactivated twice which will cause a crash.
Reported-by: Xingyuan Mo <hdthky0@xxxxxxxxx>
Fixes: 3c4287f62044 ("nf_tables: Add set type for arbitrary concatenation of ranges")
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/netfilter/nft_set_pipapo.c | 3 +++
1 file changed, 3 insertions(+)
--- a/net/netfilter/nft_set_pipapo.c
+++ b/net/netfilter/nft_set_pipapo.c
@@ -2042,6 +2042,9 @@ static void nft_pipapo_walk(const struct
e = f->mt[r].e;
+ if (!nft_set_elem_active(&e->ext, iter->genmask))
+ goto cont;
+
elem.priv = e;
iter->err = iter->fn(ctx, set, iter, &elem);
Patches currently in stable-queue which might be from fw@xxxxxxxxx are
queue-5.15/netfilter-nft_set_pipapo-skip-inactive-elements-during-set-walk.patch
