From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 D47C42236F7; Wed, 12 Aug 2026 10:53:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786532005; cv=none; b=gd7nWH60xCT+5twv5JIR3CgwvzPPCtjRYFsz3BZNc7vjkdjG/XAB15ZgVhpwNRxe6W+zmx5vxncPZvByFcIs8tekSvb5uBpCYQUnNLn59gzgEoBnd+XaWu45tECSJMeYiLuOO7TH66dLYrs4/DBw1nwW/wpmQ/xnEFHduMQlzz0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786532005; c=relaxed/simple; bh=d6PMnO7ITs+trMD354cK+xcJEM8mk1kGDat+XUrdqrA=; h=From:Subject:To:Cc:In-Reply-To:References:Content-Type:Date: Message-Id; b=qDVhBKhne7cWnCP+phuMLR/XOOWpXTmkXpPmqfZ/vqfVzBZNBb/cXCupIYqZxNyjtQt1+dM8vcAJNg1qQOHxY2tT+RqWL4pYn09y2Ll0+Cve4J6yNO/tj/2gocuMA2AMyZc0TK11kn6w0LgiT7qBZw1tjpgm0jnPRlfTJOvH5SU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ggWIJeQb; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ggWIJeQb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id ED52D1F00A3A; Wed, 12 Aug 2026 10:53:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786532003; bh=d6PMnO7ITs+trMD354cK+xcJEM8mk1kGDat+XUrdqrA=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=ggWIJeQbzW5sCk2x8ziGYX8SrBV5MLvgQYuxoEeaotvs69p7ycVRffFVM7vOw7VBe XZ6XPMg7pif6iQih4U6TBOcakyzrumaWC4sd4/Ln3OIV4Q0TykU+/YzB1Qfi3mrTkc OmroUFEanaMQhLUV4bmTV7wzJbNHk0pCQNcX8nB5cmEr5hmB6iL3fkXzTurQffK3ew BLbJ+92QEENOl28aah2ZPNQNWPPXsCLno0vXHNBQBr8uB0nI1iKswtJUcKi781bzqC GugXKuxvE/U/W8vQPpLIoZi7+93zrwjKZhcjj6b86GxXIF0THyihQmDByqzJaj2uJU gWdELwGaLnYpg== From: sashiko-bot@kernel.org Subject: Re: [PATCH v2 8/9] KVM: s390: Fix potential tiny kernel stack leak Reply-To: sashiko-reviews@lists.linux.dev To: "Claudio Imbrenda" Cc: "Alexander Gordeev" , "Vasily Gorbik" , "Heiko Carstens" , kvm@vger.kernel.org, "Christian Borntraeger" , linux-s390@vger.kernel.org In-Reply-To: <20260812104436.109741-9-imbrenda@linux.ibm.com> References: <20260812104436.109741-1-imbrenda@linux.ibm.com> <20260812104436.109741-9-imbrenda@linux.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Wed, 12 Aug 2026 10:53:22 +0000 Message-Id: <20260812105322.ED52D1F00A3A@smtp.kernel.org> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: > In some circumstances, one bit of kernel stack could have been leaked > from dat_cond_set_storage_key(). >=20 > Fix by clearing prev before use. >=20 > Fixes: 8e03e8316eb2 ("KVM: s390: KVM page table management functions: sto= rage keys") > Signed-off-by: Claudio Imbrenda Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20260812104436.1097= 41-1-imbrenda@linux.ibm.com?part=3D8