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Thu, 20 Aug 2026 14:04:39 +0000 (GMT) Received: from ibm.com (unknown [9.224.91.220]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 20 Aug 2026 14:04:39 +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 v1 0/1] 390/zcrypt: Validate length information in reply Date: Thu, 20 Aug 2026 16:04:38 +0200 Message-ID: <20260820140439.892324-1-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=LsCiDHdc c=1 sm=1 tr=0 ts=6a87097c cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=MqckkIrbGG8MBoPC69UA:9 X-Proofpoint-GUID: qcxucVyiUwTUg_lPUUlrbPGR3aF09W9c X-Proofpoint-Spam-Info: AW1haW4tMjYwODIwMDEwNSBTYWx0ZWRfX2gEZsHrpJaSL UTFCR9AD9aJDnCKSJr9I9yFuIuxSCIE26y2kojrmaXpi0C+r235b/PYuMyBWyT3BlzlYX9ajmWU NfIegjXSRtn/d8l80lDa/GO/0oXIQQQ= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODIwMDEwNSBTYWx0ZWRfX7lLMBChKDhmC T3B8p7ZsQoBbuUu4Vqp09CWUkbfUzOP7LNqJU0YKmPLMWxO946Vp09VuQGgTz6sgzdNWuPw8TqX CXdduTxMX1aqeCVmPGtHc8xCWYkKsL9noUsA0NzDeEtVtXEXpjDo/InX9RIeHcYHxHSnWuWId3l 5PlSt13517ReYKAOFgmtoD3Y8z3pPq+dkccbutFOIXzvLzi1I6YxK3iUThG1cb+2bDI92OZR+rI V36dMkhjmUxgs7WCVmFj6bcWVsdoLE8qBUBqI9kRvJtocdtJnTVdIuTQDlkEti7dENBBwFoJGo6 58HXkCYEtF7imWFjgCb4lcKhyEcHYztdtEE5j00gFRfrcXD5AKVrvVul1hCA+Di8JRJoZ2GLhyx JC06W5CNZh+9ccUJcUMlsjxzZR6F+9PCBInv2B+GHydWxmLMVnTGTfdwkRxOOCAbvVd7Ipk74lw RiCkK2NEGurDkuGQxOQ== X-Proofpoint-ORIG-GUID: qcxucVyiUwTUg_lPUUlrbPGR3aF09W9c 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_06,2026-08-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 adultscore=0 suspectscore=0 impostorscore=0 clxscore=1015 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608200105 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. 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