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Thu, 20 Aug 2026 15:50:03 +0000 (GMT) Received: from ibm.com (unknown [9.224.91.220]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 20 Aug 2026 15:50:03 +0000 (GMT) From: Holger Dengler To: Harald Freudenberger Cc: dengler@linux.ibm.com, linux-s390@vger.kernel.org, Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Ingo Franzki Subject: [PATCH v2 0/1] s390/zcrypt: Validate length information in reply Date: Thu, 20 Aug 2026 17:50:02 +0200 Message-ID: <20260820155003.945837-1-dengler@linux.ibm.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=AdqB2XXG c=1 sm=1 tr=0 ts=6a872230 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=3FdhuFNONZsipLxNYqAA:9 X-Proofpoint-GUID: Sf94reO3QPUtLxch_o5Mb0GCeUdAKYJ- X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODIwMDExNyBTYWx0ZWRfX5DvLeVRxjTRE T0B9oQLBqPOLG/zUwutbeulQm7UqKSGikJR550s8Z1IsVo/QAXAxSN3kRLIjszMaJoi71/+kZcf e5ViHRKkU08Y94aQ1AhhJfaFkpdOHAH8RxFhkF8kSkV6dOihh0P5f6ZrOz7IRCXGt1LAPDZ2NN2 4oDSCquPOjRvJImjyDD3Ksyf5rfHL0Sf9Wh7kzn9qXlRUjI5Wlh+8mjX9bcJlTGBPFGJgvQEkgF 6BB/epTkZudhmFi2MStH7YbSanOeQATBCFvEI+6ONEm02jN2sbx4NywdGXdUoDdydZOcerL61pq zayBsvRBMMUa92ekNduMk2PKb6ivanghHg2ABb3UYnCETP/Ew3gK1GwRJ85RDsQAxyLsNEnbZdJ kz9a9HvceAYSEj5ru47BW9Xp3O6mx5vFi8M2Em0XPhQTKmVGjInFuyJ+SFXqaatguC8VAijXEdJ hRb1hjV6rhpoHFchmyA== X-Proofpoint-Spam-Info: AW1haW4tMjYwODIwMDExNyBTYWx0ZWRfX8ayHHQc5U2q5 tutgY3TaTXsxf73359GQn9+R4XxtXhbrT0kzOBFXShlZD5BtvXUZWQs+SgMZDqErGV9Yk+CDtOp jDmdUD47sbgS6vrgqEhDQ+Yh6pIXSNA= X-Proofpoint-ORIG-GUID: Sf94reO3QPUtLxch_o5Mb0GCeUdAKYJ- 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=2026-08-19_06,2026-08-20_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 suspectscore=0 malwarescore=0 impostorscore=0 adultscore=0 bulkscore=0 lowpriorityscore=0 phishscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608200117 This series contains adds validation of a length information in a hardware reply, to prevent buffer over-read/over-write in case of a broken/modified replies. Changes since v1: - fix subject line in cover-letter - fix typo - pick R-b This series applies on-top of Linus' master branch. Holger Dengler (1): s390/zcrypt: Validate length in reply before using it drivers/s390/crypto/zcrypt_ccamisc.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) base-commit: 59e6295fac26b8e85c1ea859cdd89fa1e47519d7 -- 2.55.0