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| author | Florian Westphal <fw@strlen.de> | 2023-12-01 15:47:13 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-13 18:39:29 +0100 |
| commit | 189c2a82933c67ad360c421258d5449f6647544a (patch) | |
| tree | aba3426aea8385316575fdc8dd97523459f259d2 | |
| parent | b4e440cf600e4dc9b5d024402f165a090423297a (diff) | |
netfilter: nft_set_pipapo: skip inactive elements during set walk
commit 317eb9685095678f2c9f5a8189de698c5354316a upstream.
Otherwise set elements can be deactivated twice which will cause a crash.
Reported-by: Xingyuan Mo <hdthky0@gmail.com>
Fixes: 3c4287f62044 ("nf_tables: Add set type for arbitrary concatenation of ranges")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/netfilter/nft_set_pipapo.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c index deea6196d992..4e1cc31729b8 100644 --- 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 nft_ctx *ctx, struct nft_set *set, 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); |