{"id":"CVE-2026-52968","title":"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 th…","summary":"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 th…","severity":"none","published":"2026-06-24","updated":"2026-07-10","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-52968","references":[{"url":"https://git.kernel.org/stable/c/11b8ff5b930b351dd1f6f088dce0beb027ac92d0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/16d990a15491cf76cd6eef0846e1b4100e63261a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/31a9d9f9942885aae356a1a57c79e82c5b5b0828","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a99a25db131ece5e6c0f7632da606de631efe4f2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b22a2da8792a7bfe743c1a922e77fa499ddedbe8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e7216651b94e92e5433fb2f54b77864642b4ea48","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00139,"epssPercentile":0.0362,"ingestedAt":"2026-07-11T13:13:25.052Z","slug":"CVE-2026-52968","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}