From: Florian Westphal <fw@strlen.de>
To: <netfilter-devel@vger.kernel.org>
Cc: Florian Westphal <fw@strlen.de>
Subject: [PATCH nf-next 3/3] netfilter: ebtables: bound num_counters in do_update_counters()
Date: Sat, 4 Jul 2026 10:48:11 +0200 [thread overview]
Message-ID: <20260704084811.27355-4-fw@strlen.de> (raw)
In-Reply-To: <20260704084811.27355-1-fw@strlen.de>
sashiko says:
it appears the exact same
pattern remains unfixed in the sibling function do_update_counters().
Fixes: 43ae85af154b ("netfilter: ebtables: bound num_counters like nentries in do_replace()")
Signed-off-by: Florian Westphal <fw@strlen.de>
---
net/bridge/netfilter/ebtables.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 7238e48d51a1..80008664ebe5 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -1390,6 +1390,9 @@ static int do_update_counters(struct net *net, const char *name,
if (num_counters == 0)
return -EINVAL;
+ if (num_counters >= MAX_EBT_ENTRIES)
+ return -ENOMEM;
+
tmp = vmalloc_array(num_counters, sizeof(*tmp));
if (!tmp)
return -ENOMEM;
--
2.55.0
next prev parent reply other threads:[~2026-07-04 8:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-04 8:48 [PATCH nf-next 0/3] netfilter: ebtables: shashiko nitpicks Florian Westphal
2026-07-04 8:48 ` [PATCH nf-next 1/3] netfilter: ebtables: zero chainstack array Florian Westphal
2026-07-04 8:48 ` [PATCH nf-next 2/3] netfilter: ebtables: account compat ebt_table_info to kmemcg Florian Westphal
2026-07-04 8:48 ` Florian Westphal [this message]
2026-07-04 9:31 ` [PATCH nf-next 0/3] netfilter: ebtables: shashiko nitpicks Florian Westphal
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