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Mon, 23 Mar 2026 10:49:36 +0000 (GMT) Date: Mon, 23 Mar 2026 11:49:35 +0100 From: Steffen Eiden To: Claudio Imbrenda Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, borntraeger@de.ibm.com, frankja@linux.ibm.com, nrb@linux.ibm.com, gra@linux.ibm.com, schlameuss@linux.ibm.com, hca@linux.ibm.com, david@kernel.org Subject: Re: [PATCH v2 5/8] KVM: s390: vsie: Fix refcount overflow for shadow gmaps Message-ID: <20260323104935.66303-E-seiden@linux.ibm.com> References: <20260320161542.202913-1-imbrenda@linux.ibm.com> <20260320161542.202913-6-imbrenda@linux.ibm.com> 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=us-ascii Content-Disposition: inline In-Reply-To: <20260320161542.202913-6-imbrenda@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: a16vKRFmG3spi2_pw-qn9QQiHLe0hUj5 X-Proofpoint-ORIG-GUID: a16vKRFmG3spi2_pw-qn9QQiHLe0hUj5 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzIzMDA4MyBTYWx0ZWRfX0y5iFchZSz3+ gRybnv2nGn3cCGV2wrbher7DO/0yyz18A1LVmh1jVPJ2zukBw+0bBnMxY0apbEM+x/ORemLz/Gm wt0N695QF7OOJ8TO7mUH2yeI1nENN/UaFpHT3saKIbc9BYbBej3GJrXGbay4/mj2WrXfrCDmnJz AO6OJsvyDI9zN9uQTjTS3KDZrqQ0gzXscW7e7WFu4atH0FHlGG1V5bLwP5wY64iKtOUSk/ZmUja N2x0maTRfWaKOIBizRCkGuRn98Y5c2l1sy1aWTqCz7Pus45/7KfamBhmd37SSkQi5JRVYbPuiYl e4nfATCzuCc0GL/QNBOgRQscRy3knPDibOSu5N8TFPCe3Q0f4bIpf465E+oMnigv2pcB9mRwy2m qS0W8V6hIpwBIdSYW+cf3W9cbbeJVmEA5FIkjIsthjBVh9R62ls8lJnBeQ9rTUbk39QrgVqUdqy MPLWVIlsQmnNyqmi8Ew== X-Authority-Analysis: v=2.4 cv=KbXfcAYD c=1 sm=1 tr=0 ts=69c11ac5 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=kj9zAlcOel0A:10 a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=VnNF1IyMAAAA:8 a=S7tHkTOIyoP8fopN8bkA:9 a=CjuIK1q_8ugA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-23_03,2026-03-20_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 impostorscore=0 malwarescore=0 adultscore=0 clxscore=1015 priorityscore=1501 bulkscore=0 lowpriorityscore=0 phishscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603230083 On Fri, Mar 20, 2026 at 05:15:39PM +0100, Claudio Imbrenda wrote: > In most cases gmap_put() was not called when it should have. > > Add the missing gmap_put() in vsie_run(). > > Signed-off-by: Claudio Imbrenda > Fixes: e38c884df921 ("KVM: s390: Switch to new gmap") Reviewed-by: Steffen Eiden