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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Jan 2026 21:47:51.1506 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b794bbcf-d688-4ba2-d85c-08de4eff9263 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000044F1.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB4222 Content-Type: text/plain; charset="utf-8" From: Yan Zhao sev_gmem_post_populate() needs to unmap the target vaddr after copy_from_user() to the vaddr fails. Fixes: dee5a47cc7a4 ("KVM: SEV: Add KVM_SEV_SNP_LAUNCH_UPDATE command") Signed-off-by: Yan Zhao Signed-off-by: Michael Roth --- arch/x86/kvm/svm/sev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index f59c65abe3cf..261d9ef8631b 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -2296,6 +2296,7 @@ static int sev_gmem_post_populate(struct kvm *kvm, gf= n_t gfn_start, kvm_pfn_t pf void *vaddr =3D kmap_local_pfn(pfn + i); =20 if (copy_from_user(vaddr, src + i * PAGE_SIZE, PAGE_SIZE)) { + kunmap_local(vaddr); ret =3D -EFAULT; goto err; } --=20 2.25.1