{"api_version":"1","generated_at":"2026-07-23T14:01:53+00:00","cve":"CVE-2026-52968","urls":{"html":"https://cve.report/CVE-2026-52968","api":"https://cve.report/api/cve/CVE-2026-52968.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-52968","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-52968"},"summary":{"title":"KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic\n\nkvm_s390_pci_aif_enable(), kvm_s390_pci_aif_disable(), and\naen_host_forward() index the GAIT by manually multiplying the index\nwith sizeof(struct zpci_gaite).\n\nSince aift->gait is already a struct zpci_gaite pointer, this\ndouble-scales the offset, accessing element aisb*16 instead of aisb.\n\nThis causes out-of-bounds accesses when aisb >= 32 (with\nZPCI_NR_DEVICES=512)\n\nFix by 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s390: pci: fix GAIT table indexing due to double-scaling po","CVE":"CVE-2026-52968","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"52968","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic\n\nkvm_s390_pci_aif_enable(), kvm_s390_pci_aif_disable(), and\naen_host_forward() index the GAIT by manually multiplying the index\nwith sizeof(struct zpci_gaite).\n\nSince aift->gait is already a struct zpci_gaite pointer, this\ndouble-scales the offset, accessing element aisb*16 instead of aisb.\n\nThis causes out-of-bounds accesses when aisb >= 32 (with\nZPCI_NR_DEVICES=512)\n\nFix by removing the erroneous sizeof multiplication.","Type":"Description","Title":"KVM: s390: pci: fix GAIT table indexing due to double-scaling po"}]}}}