CVE-2026-52968 (GCVE-0-2026-52968)
Vulnerability from cvelistv5
Published
2026-06-24 16:28
Modified
2026-10-19 19:47
Severity ?
8.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic kvm_s390_pci_aif_enable(), kvm_s390_pci_aif_disable(), and aen_host_forward() index the GAIT by manually multiplying the index with sizeof(struct zpci_gaite). Since aift->gait is already a struct zpci_gaite pointer, this double-scales the offset, accessing element aisb*16 instead of aisb. This causes out-of-bounds accesses when aisb >= 32 (with ZPCI_NR_DEVICES=512) Fix by removing the erroneous sizeof multiplication.
References
Impacted products
Vendor Product Version
Linux Linux Version: 73f91b004321f2510fa79e66035dbbf1870fcf56
Version: 73f91b004321f2510fa79e66035dbbf1870fcf56
Version: 73f91b004321f2510fa79e66035dbbf1870fcf56
Version: 73f91b004321f2510fa79e66035dbbf1870fcf56
Version: 73f91b004321f2510fa79e66035dbbf1870fcf56
Version: 73f91b004321f2510fa79e66035dbbf1870fcf56
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