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Wed, 12 Aug 2026 20:02:41 +0000 (GMT) Received: from li-4c4c4544-004d-4810-8043-b7c04f423534.ibm.com.com (unknown [9.61.9.29]) by smtpav04.wdc07v.mail.ibm.com (Postfix) with ESMTP; Wed, 12 Aug 2026 20:02:41 +0000 (GMT) From: Anthony Krowiak To: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: jjherne@linux.ibm.com, borntraeger@de.ibm.com, mjrosato@linux.ibm.com, pasic@linux.ibm.com, alex@shazbot.org, kwankhede@nvidia.com, fiuczy@linux.ibm.com, pbonzini@redhat.com, frankja@linux.ibm.com, imbrenda@linux.ibm.com, agordeev@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com Subject: [PATCH v5 0/9] s390/vfio-ap: Fix bugs in vfio_ap device driver callback functions Date: Wed, 12 Aug 2026 16:02:31 -0400 Message-ID: <20260812200240.818004-1-akrowiak@linux.ibm.com> X-Mailer: git-send-email 2.53.0 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: 8bit X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=RsP16imK c=1 sm=1 tr=0 ts=6a7cd164 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=gxQObmdM_ZwBCBthh6sA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: WW5bMFU_roVaW8pi62QV0XmEgeRrE3_o X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODEyMDE1NiBTYWx0ZWRfX/sDWM22783DW Yhoj5j/tSVtSp5JdvFSrUWoz8EaEyoKv7Z43a8wLgYr7v3Jqf04oz4rgPrjKYAjrWqRa4RqaQs9 o84ucssChLk8l22KOSLaOvHZ/Igi1fnmWJEjdL52XGmc8d1nbUIl7Loq/nC5FbmssO4Xq4VDbML BH9nyvkxwe005JNToSx1SOUt5evOKW41Nh0WQAhyEiz1FXyb0PHZC9gApiJ2/xhSnCk0yZdnnbk 1jVw1c9+nQBjCQLVPD3lhGeUL3pYhsfRNlN7EM+V05k47zZ71ZuZhtcgl88JZtBVbe0dSNcXzST L1in9c8wLPWQYg+TMKxfdMLJGfitdbJ+nMW0COLLWLi//40NBL4X1o+MZ5GXnP+W50ehz739Rnq meW5Eu09q8aT+7oG0nLrRuz2Q5GE3HaTyy7tYyrQCekzVyDsU1oOgmrQ7s92shuAmCYyN/kl/5A P/4HZJYIdMBFLkGHOEg== X-Proofpoint-ORIG-GUID: WW5bMFU_roVaW8pi62QV0XmEgeRrE3_o X-Proofpoint-Spam-Info: AW1haW4tMjYwODEyMDE1NiBTYWx0ZWRfX8ycvdMomv0mZ wvDHybRIDuIByjJzp4njb8W6aSzJ1254OTeCJBA383SwLfA56xifHaNlTLim3IadNQQhKmUP4dL T/JtnZZInkleXcr7lT7TOAoxiSY0Z8Y= 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_05,2026-08-12_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 impostorscore=0 suspectscore=0 clxscore=1015 malwarescore=0 phishscore=0 adultscore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608120156 During review of patches by the Sashiko AI, several pre-existing bugs were discovered. This 9-patch series fixes those bugs. Change log v4 => v5: ~~~~~~~~~~~~~~~~~~~ Patch 8/9: Fix NULL deref in status_show() during queue probe * Check if q = dev_get_drvdata(&apdev->device) actually returns a pointer to a vfio_ap_queue object. If not, the return AP_QUEUE_UNASSIGNED Anthony Krowiak (9): s390/vfio-ap: Fix stale do_remove flag across iterations in vfio_ap_mdev_cfg_remove s390/vfio-ap: Fix dereference matrix_mdev->kvm without checking for NULL s390/vfio-ap: Fix missing lock required to access list of ap_matrix_mdev objects s390/vfio-ap: Fix required lock not held during update of ap_matrix_mdev object s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove s390/vfio-ap: fix potential use of uninitialized apm_filtered bitmap s390/vfio-ap: Fix hot-unplug skipped when last AP adapter or domain removed s390/vfio-ap: Fix NULL deref in status_show() during queue probe s390/vfio-ap: Fix memory leak when queue removed from host AP config drivers/s390/crypto/vfio_ap_ops.c | 163 +++++++++++++++++++++++------- 1 file changed, 126 insertions(+), 37 deletions(-) -- 2.53.0