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 7A3FE46B5 for ; Mon, 16 Jan 2023 16:20:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F1A9CC433EF; Mon, 16 Jan 2023 16:20:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673886001; bh=9GGRKnD/CkOSOU9UtpSOD7Q6zwkqYi7MVhHVg1XesHM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1XZTrqT2CfchLPUyGvmLlMDataNsXoSDoyfGf8F39xE/NdT/9m5YnDLpwolyAxf7e s5o5mT5Lvr98NjT6On0TEPnTHQl77OUHyxJabssGVSLZlHe3+g8xrcYBPbHgXhdTtu 2Bg50DM+hinBrlAlV7cxkFFqoErx1dxph1QQ3x1A= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yuan Can , Leon Romanovsky , Sasha Levin Subject: [PATCH 5.4 265/658] RDMA/nldev: Add checks for nla_nest_start() in fill_stat_counter_qps() Date: Mon, 16 Jan 2023 16:45:53 +0100 Message-Id: <20230116154921.712008623@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230116154909.645460653@linuxfoundation.org> References: <20230116154909.645460653@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Yuan Can [ Upstream commit ea5ef136e215fdef35f14010bc51fcd6686e6922 ] As the nla_nest_start() may fail with NULL returned, the return value needs to be checked. Fixes: c4ffee7c9bdb ("RDMA/netlink: Implement counter dumpit calback") Signed-off-by: Yuan Can Link: https://lore.kernel.org/r/20221126043410.85632-1-yuancan@huawei.com Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/core/nldev.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 93cc60e92d82..88c68d77e6b1 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -694,6 +694,8 @@ static int fill_stat_counter_qps(struct sk_buff *msg, int ret = 0; table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_RES_QP); + if (!table_attr) + return -EMSGSIZE; rt = &counter->device->res[RDMA_RESTRACK_QP]; xa_lock(&rt->xa); -- 2.35.1