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 7EEA48BFF; Sat, 8 Mar 2025 18:34:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741458870; cv=none; b=LTRVn5NGX/pWXCgY9+5qisp1do/4+riccyckfVD2OjTww7iPZtQvD2feeILfYcOxQdeho4wjOjJlOjxLOqZKIvSdRsvYgoJLALSMxspZzvYzyVFouDHOZm3cV6PUaBW5CMIhAyud7YqXiSg+d2Wrm/Tqr7H2WmfdePwAOw9Ak+8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741458870; c=relaxed/simple; bh=N+wnqnn7niKRWMTF/fWmJbhbbB5Fyb5/7cVhoNMuJDM=; h=From:To:Cc:In-Reply-To:References:Subject:Message-Id:Date: MIME-Version:Content-Type; b=UYRSil3kX5yoNr7Iz2aRJftJ1+l9hW9jf5SU2bU7W93D1dWUBjpuYhL3rQo3f5s2aG7KU29M600nmktU4kMgKF4bbPZvDhKX8fpIQUduijudBPjT8ubL3VA+ZXLO/4TYZHvDXzAmUVCjn1H5Tkcp7JEh1ODZfPYFoMJCIu0LSyA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OtsZBsZ/; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="OtsZBsZ/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 784EDC4CEE0; Sat, 8 Mar 2025 18:34:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741458869; bh=N+wnqnn7niKRWMTF/fWmJbhbbB5Fyb5/7cVhoNMuJDM=; h=From:To:Cc:In-Reply-To:References:Subject:Date:From; b=OtsZBsZ//obqWnNHVqKCp2XgN76oAoSAg7t+k4S1JWhj8vboPvF0sTkK9el1OeBKK V0vkCFuIl4w+ip2HRgoSlL2cxGXlV7FVn65C6eepRWmuhULN9lbQV3xvJCl67nj3mz dczSm3ZxRdJeqANPllX6+AtSEFLVs8BOFoSdzB78HvJXOvh6nnI1/Rkjaz0ZZ8cJtM Q5kSm4rOPKd1IGXfH3G1EkkEqcL66Pi6kO5xkXs6Yqy7s7Rnrg8xrWp4yoh/MQ/pI0 2ndhJ0UEqbW5xiaCyxPOp/AjdWdgLSBYYnhz06CgZo4BGcrOhtdufu3MY0c3kdiTkp Ar7jOft6gbFFA== From: Leon Romanovsky To: Konstantin Taranov , Dan Carpenter Cc: Long Li , Jason Gunthorpe , Shiraz Saleem , linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org In-Reply-To: <58439ac0-1ee5-4f96-a595-7ab83b59139b@stanley.mountain> References: <58439ac0-1ee5-4f96-a595-7ab83b59139b@stanley.mountain> Subject: Re: [PATCH next] RDMA/mana_ib: Use safer allocation function() Message-Id: <174145886664.308372.5469459244434611708.b4-ty@kernel.org> Date: Sat, 08 Mar 2025 13:34:26 -0500 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.15-dev-37811 On Thu, 06 Mar 2025 22:49:06 +0300, Dan Carpenter wrote: > My static checker says this multiplication can overflow. I'm not an > expert in this code but the call tree would be: > > ib_uverbs_handler_UVERBS_METHOD_QP_CREATE() <- reads cap from the user > -> ib_create_qp_user() > -> create_qp() > -> mana_ib_create_qp() > -> mana_ib_create_ud_qp() > -> create_shadow_queue() > > [...] Applied, thanks! [1/1] RDMA/mana_ib: Use safer allocation function() https://git.kernel.org/rdma/rdma/c/1d5c69514e7428 Best regards, -- Leon Romanovsky