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Mon, 31 Aug 2026 17:14:43 +0000 (GMT) Received: from li-4c4c4544-004d-4810-8043-b7c04f423534.ibm.com.com (unknown [9.61.29.117]) by smtpav03.wdc07v.mail.ibm.com (Postfix) with ESMTP; Mon, 31 Aug 2026 17:14:43 +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 0/4] s390/vfio-ap: Fix pre-existing bugs in vfio_ap device driver Date: Mon, 31 Aug 2026 13:14:39 -0400 Message-ID: <20260831171443.222225-1-akrowiak@linux.ibm.com> X-Mailer: git-send-email 2.53.0 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=PPc/P/qC c=1 sm=1 tr=0 ts=6a95b687 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=fuWVWdFGajcpH1A5QwgA:9 a=zZCYzV9kfG8A:10 X-Proofpoint-GUID: aQ9Ps0GB3wtjcUFBphSpUdHZdJvK74wz X-Proofpoint-ORIG-GUID: aQ9Ps0GB3wtjcUFBphSpUdHZdJvK74wz X-Proofpoint-Spam-Info: AW1haW4tMjYwODMxMDE0NyBTYWx0ZWRfX0ROdQGd8MxYb XzrMSCBlnUsqaEICF8buctKTQ3AYmyNVKAFcAbuxjWcluXDhFonPXkDlKB/A28Em3gBu2GXmnDV tuyO6qxL2mK+brEjg5ksyJWGtaXQyI8= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODMxMDE0NyBTYWx0ZWRfX7t/PapOxYDQT YETi+F1ozDVzIWz5tE5WVp3TQaC2Q6VOPNDRI8CZExGAHllFTjKHY9uUKhbycfOaVhSQYm5CKBC AHlTiOuQ2otE7wZOw1TVW3UHcTfED7rviT7Po3vN3OzFQI917+kluPsZE6k7XS9urNe4GHS7DPS mSxQZllVUTdXnsC3NSiKosBnCRroOMlCGE0iZd0hryeOR+YoMkFFcRa5iXrZrfFlDsQHUA0/rMo WI8KCagxA1sA6h4hZMo5ZlMsp2NIVF+6yrBmz5ZuH2ckYQDQWhc7tK56t4/byUG0C/6Yzm0GeOy k+opymO3sVy1ga3NPFS19+aZ7jFidMTFyQRYWebMBPvgf/6r49qApP5rSMtL+4SZ51cos7Uhjvq cAPp4ULN9SZy9u0jNnGPeGIu5qFjrehBnyudtZSMpHS1rYrvc1UTzaT9veIU+Jm1t0dw6UrPOmg c2+yFofmgaDvH+yGdig== 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=2026-08-31_05,2026-08-31_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 phishscore=0 adultscore=0 suspectscore=0 bulkscore=0 spamscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608310147 The sashiko AI reported several pre-existing bugs in the vfio_ap device driver code while reviewing unrelated patches. This series fixes four such bugs. Change log v4 => v5: ~~~~~~~~~~~~~~~~~~~ Patch 1/4: Fix leak of pinned NIB and registered NISC in vfio_ap_irq_enable * Fixed bug in vfio_ap_irq_enable() whereby the AQIC resources are freed when vfio_ap_wait_for_irq_state() returns false. Patch 3/4: Fix unbounded loop in apq_reset_check() * Refactored apq_status_check() to verify the queue was zeroized. Anthony Krowiak (4): s390/vfio-ap: Fix leak of pinned NIB and registered NISC in vfio_ap_irq_enable/disable() s390/vfio-ap: Fix failure to release IRQ notification eventfd contexts s390/vfio-ap: Fix unbounded loop in apq_reset_check() s390/vfio-ap: Use AP_DOMAINS for adm_add bitmap size in vfio_ap_mdev_cfg_add() drivers/s390/crypto/vfio_ap_ops.c | 273 ++++++++++++++++++++++++++---- 1 file changed, 243 insertions(+), 30 deletions(-) -- 2.53.0