From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0FFB335EE5; Mon, 4 Dec 2023 20:35:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nduiCaTB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B10E5C433CB; Mon, 4 Dec 2023 20:35:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1701722128; bh=TO2hUxIrwspLrE7wt4l04hI0iwBtQjvaC94e820uD9A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nduiCaTBCRJzLDNFeng5kAS7IC4GVhubkf/0UcpXzoR2h2T+CyoSwb3IBXY+kzPFU J54fcSffBUk3t5qwbBN1J0lQLfLzOEbwPozFkV0fv7xVw2LhX67VM0n7ZglARb95MW mZ+eOagOlLLarhgZ+y8bHQwKdzMgQIjBuwd8HVgxeJmncQkRoGkp5bbhemj5MJi5mo PhO2Ax8IGAjVII49HTzUnzyC7pRQnFeFiDaINyvf/S2SU9uihhLCrx7isbb1rtFxip dLwbDagqGN8/x/kyrI/uvMbW9jmwLTQeoD13iwmQUfXbhXHmzA1POuw4jSQ1gxkyyT D6W1qIw6pYyHQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Edward Adam Davis , syzbot+b834a6b2decad004cfa1@syzkaller.appspotmail.com, Paolo Abeni , "David S . Miller" , Sasha Levin , matttbe@kernel.org, martineau@kernel.org, edumazet@google.com, kuba@kernel.org, netdev@vger.kernel.org, mptcp@lists.linux.dev Subject: [PATCH AUTOSEL 6.1 04/17] mptcp: fix uninit-value in mptcp_incoming_options Date: Mon, 4 Dec 2023 15:34:49 -0500 Message-ID: <20231204203514.2093855-4-sashal@kernel.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231204203514.2093855-1-sashal@kernel.org> References: <20231204203514.2093855-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.1.65 Content-Transfer-Encoding: 8bit From: Edward Adam Davis [ Upstream commit 237ff253f2d4f6307b7b20434d7cbcc67693298b ] Added initialization use_ack to mptcp_parse_option(). Reported-by: syzbot+b834a6b2decad004cfa1@syzkaller.appspotmail.com Signed-off-by: Edward Adam Davis Acked-by: Paolo Abeni Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/mptcp/options.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/mptcp/options.c b/net/mptcp/options.c index 0c786ceda5ee6..74027bb5b4296 100644 --- a/net/mptcp/options.c +++ b/net/mptcp/options.c @@ -103,6 +103,7 @@ static void mptcp_parse_option(const struct sk_buff *skb, mp_opt->suboptions |= OPTION_MPTCP_DSS; mp_opt->use_map = 1; mp_opt->mpc_map = 1; + mp_opt->use_ack = 0; mp_opt->data_len = get_unaligned_be16(ptr); ptr += 2; } -- 2.42.0