From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794061077; b=3n1JUyF66Ut3iT6aUTiy5TytsOQ3Xdrt16qq2Akl1kUzAhj2TRJObK2OyiC1M9Du+sds WIEYBvH2OcoVUrAL6VcLsL7t1tCdMvxVmGRMPe46zDz1TyELRXrsmfJWO1fjtuW80WxLr h1wmgPL2C+fG2gvbLuWkZP38zfuNMcTsQQlvtBDtrfKwoLiKQ97D2gi7ZMltuecsaNpPQ 519klFoOQwGSA04pBB/Vn0hsYheTujogf6Fv9So+P3tLd9QklpHUNBrqskmeFMb1EaE5T Po5atMBtKiye+t51PfxhV31mSaOHAU4q0Jq/3N8Wt8+re2uniKl4iIkXfxk9WEyighg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794061077; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=3yxTbbXqFmot6gMc9kgYd2k0NYXGpIG2R2TsYJZHTcQ=; b=jgN4KeabffV/JIDex/J0SSMoR364nkIpCdpV/BdShk98HuGShSaI7c1nIcuQfy4ybpGD l0tDkd5nwHIJe4zoCp0STBEDOtmUdJPAWDjT4UHRBZ5sHYTOWF/TsWKEFnGyk1J0H0laU 1K8LQNZ4LLpO4DVwh4nBWXODHkRZrfIe934b1osyjZ9dP8jv7865OiZ7fGJiafSJjljN3 zexpN9AhmQaDE9Bn1Rnq0GKPy0KtPd2a2moVsEL/X8lZUF5+IOYbgl8Yb0KjYdudIP2XX Pb8S5aLQXTvmBERvQ8FOhx2ZE+dGnjDPekj0LLDWd7+/b5l4PjdQQBdBRr7Z9d2H8fg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=Lytv5eDB; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 34BDF606D81B; Sat, 7 Nov 2026 14:17:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=Lytv5eDB Received: by smtp.kernel.org (Postfix) with ESMTPSA id B5DDD1F0089F; Sat, 7 Nov 2026 14:17:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794061077; bh=3yxTbbXqFmot6gMc9kgYd2k0NYXGpIG2R2TsYJZHTcQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Lytv5eDB9TbXKd9xhC3v6qCRsGIMMxcwfjYq0DsfmnaX8pHBZV2GEtrqHPnF/oUIp r0iUgqnxWP2I4Fd+rtj5KMOX/zwrOrHFYWVaaOJG5NL14frR6Tbl7VPgF9FNjEySF5 N81XVR9HKa3k4ocXbfW792g7oW9BfmPwRHiUK2/A= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Fernando Fernandez Mancera , Pablo Neira Ayuso , Sasha Levin Subject: [PATCH 6.12 0401/1536] netfilter: tproxy: use DEBUG_NET_WARN_ON_ONCE for protocol fallbacks Date: Sat, 7 Nov 2026 08:40:17 -0500 Message-ID: <20261107135008.850033519@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134957.653319350@linuxfoundation.org> References: <20261107134957.653319350@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Fernando Fernandez Mancera [ Upstream commit 1f0391aea883e99d402d0f77ba3530e4e879350d ] Replace WARN_ON calls with DEBUG_NET_WARN_ON_ONCE in the default switch blocks of nf_tproxy_get_sock_v4 and v6. Unsupported transport protocols are already safely handled by returning a NULL socket pointer. This prevents unnecessary system panics when panic_on_warn=1 is enabled in production systems. Link: https://patch.msgid.link/cover.1786968834.git.zhilinz@nebusec.ai/ Signed-off-by: Fernando Fernandez Mancera Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin --- net/ipv4/netfilter/nf_tproxy_ipv4.c | 2 +- net/ipv6/netfilter/nf_tproxy_ipv6.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv4/netfilter/nf_tproxy_ipv4.c b/net/ipv4/netfilter/nf_tproxy_ipv4.c index 73e66a088e25e..9b51e84606040 100644 --- a/net/ipv4/netfilter/nf_tproxy_ipv4.c +++ b/net/ipv4/netfilter/nf_tproxy_ipv4.c @@ -138,7 +138,7 @@ nf_tproxy_get_sock_v4(struct net *net, struct sk_buff *skb, } break; default: - WARN_ON(1); + DEBUG_NET_WARN_ON_ONCE(1); sk = NULL; } diff --git a/net/ipv6/netfilter/nf_tproxy_ipv6.c b/net/ipv6/netfilter/nf_tproxy_ipv6.c index 52f828bb5a83d..ead5d161464cb 100644 --- a/net/ipv6/netfilter/nf_tproxy_ipv6.c +++ b/net/ipv6/netfilter/nf_tproxy_ipv6.c @@ -137,7 +137,7 @@ nf_tproxy_get_sock_v6(struct net *net, struct sk_buff *skb, int thoff, } break; default: - WARN_ON(1); + DEBUG_NET_WARN_ON_ONCE(1); sk = NULL; } -- 2.53.0