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Wed, 12 Aug 2026 15:55:30 +0000 (GMT) Received: from [127.0.1.1] (unknown [9.87.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 12 Aug 2026 15:55:30 +0000 (GMT) From: Steffen Eiden Subject: [PATCH v3 0/2] s390/uv: Various fixes for UV secrets Date: Wed, 12 Aug 2026 17:55:18 +0200 Message-Id: <20260812-uv_secrets_fix-v3-0-a85bd29e0666@linux.ibm.com> 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-B4-Tracking: v=1; b=H4sIAAAAAAAC/33MTQqDMBCG4atI1h1JYgymq96jFInptA7UHxINF vHujS4L7ezeD+ZZWUBPGNg5W5nHSIGGPkVxyphrbf9EoHtqJrnUvBIC5lgHdB6nUD9ogbKyumi UVegUS0+jxzQf4PWWuqUwDf59+FHs608qChBgFLdKCmukkZcX9fOSU9PlbujYzkX5n5DAQat0R lfoyvKb2LbtA2Mr6+rzAAAA X-Change-ID: 20260811-uv_secrets_fix-58a63b4a4ec4 To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda Cc: David Hildenbrand , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Sven Schnelle , Christoph Schlameuss , Harald Freudenberger , Steffen Eiden , kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.3 X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=AMtp2X5w c=1 sm=1 tr=0 ts=6a7c9777 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=-7hb4Qqz6WtcWSNxuvcA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: p-iYAKsDv_Lj_EwqS_0IEAXIQauc1hR5 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODEyMDEyNiBTYWx0ZWRfX6FChR9WKPLss uR++eAzwWBX0fryScA/eCVracMvLZaVh9VuHtj42Kv15MoXDZAsAvu5dGd85nozgnEXc0kRU1yR FswJ5njfUh3EhwaMdaK7kHsV836Zog5rX8YkxqNc8PXMJz4bOnKxbXftqYhB2No4zHye++u9tqc 43rO4wvhJQjiZhkPD+z7xB7zv7g7VlEQy6cN/G3V83DIWCPsRZX1OVqLTVR+9itFHSH+Cu4Z2tI neNwyNq4d/ZVSmlgEL2KNnLRUL4qXGXlkJnr10SGEmcEv63VdbUSupIg4jnyrEYJYGr9Gb/CncM KTbqpnX5bc7JaPBVGGS+0gPqH8zWQQQO2Ssl4FKRvs7IwXgRnKgvA8BpC9tOWz7VOLRJn1POvZK gZQLe3KSQyiExDV+O8ayvhIkc4CZE5JZtmNqjwNaH5nOdfu7Uxsw2EMeu4NCg46TkNLgr8Mgi41 NluNsoPIrKnf45WjtHw== X-Proofpoint-ORIG-GUID: p-iYAKsDv_Lj_EwqS_0IEAXIQauc1hR5 X-Proofpoint-Spam-Info: AW1haW4tMjYwODEyMDEyNiBTYWx0ZWRfX2SislPMseA38 pp65+hFr7thHtAiUh/TGHt4Z44VQGfAno2IjWXTz7CtBEMgSZFyP9S6TsQOgoGTDuxr3GC5SNzf 6wxoiZnXp9hUpPDpoGNaUmRMonHhl8k= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-12_04,2026-08-12_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 adultscore=0 lowpriorityscore=0 clxscore=1015 priorityscore=1501 impostorscore=0 phishscore=0 spamscore=0 bulkscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608120126 To: Christian Borntraeger To: Janosch Frank To: Claudio Imbrenda Cc: David Hildenbrand Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Alexander Gordeev Cc: Sven Schnelle Cc: Christoph Schlameuss Cc: Harald Freudenberger Cc: Steffen Eiden Cc: kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org Cc: linux-kernel@vger.kernel.org Fix some issues in the retrieve secret infrastructure. First, fix the issue that the loop in uv_find_secret cannot ran more that one round. Second, fix a potential out of bounds issue in find_secret_in_page. --- Changes in v3: - Add R-b from Christoph for patch 1 - Improved commit message in patch 1 - Link to v2: https://lore.kernel.org/r/20260811-uv_secrets_fix-v2-0-64444968ec55@linux.ibm.com Changes in v2: - Add Ack from Claudio - Add patch that fixes a potential out-of-bounds access in find_secret_in_page - Link to v1: https://lore.kernel.org/r/20260811-uv_secrets_fix-v1-1-940a421a9292@linux.ibm.com --- Steffen Eiden (2): s390/uv: Fix loop condition in uv_find_secrets s390/uv: Prevent potential out-of-bounds read arch/s390/kernel/uv.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) --- base-commit: d58772d8520c7ef247c4b95c9bd76d3a25da9ff5 change-id: 20260811-uv_secrets_fix-58a63b4a4ec4 Best regards, -- Steffen Eiden