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high8.8

CVE-2026-52968

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_p…

Impact

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.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 6.0 before 6.1.175
from 6.2 before 6.6.141
from 6.7 before 6.12.91
from 6.13 before 6.18.33
from 6.19 before 7.0.10
Version 7.1

Weakness classification

CWE-125

References