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Tue, 11 Aug 2026 15:53:34 +0000 (GMT) Received: from [9.61.146.44] (unknown [9.61.146.44]) by smtpav04.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 11 Aug 2026 15:53:34 +0000 (GMT) Message-ID: <33613f31-5e5e-4f5f-b1d6-5491459112c0@linux.ibm.com> Date: Tue, 11 Aug 2026 11:53:34 -0400 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/8] s390/vfio-ap: Fix dereference matrix_mdev->kvm without checking for NULL To: Anthony Krowiak , linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: jjherne@linux.ibm.com, borntraeger@de.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, stable@vger.kernel.org References: <20260810192257.1208410-1-akrowiak@linux.ibm.com> <20260810192257.1208410-3-akrowiak@linux.ibm.com> Content-Language: en-US From: Matthew Rosato In-Reply-To: <20260810192257.1208410-3-akrowiak@linux.ibm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODExMDEzMCBTYWx0ZWRfX+pnRg91h1ukL 5YkDaZ0CiHlInWm+KLBAZOo5FZANYvjhQyCSloeCK6psUqUbGNphLlK2oyCYbmsoumwWtTppPiO tvjnWFw8lHofcvdDStNsw0egjSJ4PSVodD2+Oh5WCnRSZ3T2HWaPS+7hPQsWV+dwxlWNEWVEyAP 51OsRQWtSv8wur1CDAaUqMbuaFqfbOOX4CBebIWwGbvQpsE3L8PProji3EGgf/fpuRbI7dpQrT8 nE+qAOFmEvh+w42qDbzMZXhNL251QGmXgRLJgtW/EjK5KJUpyYrdlrwl9K274PeHUL4Q6n93Gtj BY4NAtwJDzG7KE3TR+1uu/22I0wnGhdRcBlpSUDjdSc0kQpMa2I7ZeEEzHIMZjvJXPt8sTLE/+l m3Iia8VKHSd1Km6+SWo9bMG834gatYpgKwZfcL6F/1fZIcKBBfk/4GVwxj+ZncsRWAMahULN0K8 8UKDtLJkOm9eHyBomCg== X-Proofpoint-ORIG-GUID: ppDUa8o7ET9MF19tF0t0vUUAIgkLWnsm X-Proofpoint-Spam-Info: AW1haW4tMjYwODExMDEzMCBTYWx0ZWRfXxPdrUvApL1Va M3pX6qGX2iOKRtRReA6l88AuhtOQiBaNOw+pGE1suIw9PwNgtjM7CoPz8U+PFOrcysOnxRj3Gwh 4eeD56Ml8Kf7KgZrYVr8C25NpO9mvQU= X-Authority-Analysis: v=2.4 cv=IfK3n2qa c=1 sm=1 tr=0 ts=6a7b4582 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=sEJQHw-XGmbjtyPYZvMA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: ppDUa8o7ET9MF19tF0t0vUUAIgkLWnsm 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=2026-08-11_03,2026-08-10_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 priorityscore=1501 impostorscore=0 bulkscore=0 clxscore=1015 lowpriorityscore=0 adultscore=0 malwarescore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608110130 On 8/10/26 3:22 PM, Anthony Krowiak wrote: > The ap_driver structure has two fields which are function pointers to > callbacks: ... > Fixes: eeb386aeb5b7c ("s390/vfio-ap: handle config changed and scan complete notification") > Cc: stable@vger.kernel.org > Signed-off-by: Anthony Krowiak Reviewed-by: Matthew Rosato