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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
73f91b004321f2510fa79e66035dbbf1870fcf56 affected < 31a9d9f9942885aae356a1a57c79e82c5b5b0828
73f91b004321f2510fa79e66035dbbf1870fcf56 affected < a99a25db131ece5e6c0f7632da606de631efe4f2
73f91b004321f2510fa79e66035dbbf1870fcf56 affected < 11b8ff5b930b351dd1f6f088dce0beb027ac92d0
73f91b004321f2510fa79e66035dbbf1870fcf56 affected < b22a2da8792a7bfe743c1a922e77fa499ddedbe8
73f91b004321f2510fa79e66035dbbf1870fcf56 affected < e7216651b94e92e5433fb2f54b77864642b4ea48
73f91b004321f2510fa79e66035dbbf1870fcf56 affected < 16d990a15491cf76cd6eef0846e1b4100e63261a
Linux Linux affected
Version Status Constraints
6.0 affected —
0 unaffected < 6.0
6.1.175 unaffected ≤ 6.1.*
6.6.141 unaffected ≤ 6.6.*
6.12.91 unaffected ≤ 6.12.*
6.18.33 unaffected ≤ 6.18.*
7.0.10 unaffected ≤ 7.0.*
7.1 unaffected ≤ *

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References
Link Providers
https://git.kernel.org/stable/c/11b8ff5b930b351dd1f6f088dce0beb027ac92d0 cve-icon
https://git.kernel.org/stable/c/16d990a15491cf76cd6eef0846e1b4100e63261a cve-icon
https://git.kernel.org/stable/c/31a9d9f9942885aae356a1a57c79e82c5b5b0828 cve-icon
https://git.kernel.org/stable/c/a99a25db131ece5e6c0f7632da606de631efe4f2 cve-icon
https://git.kernel.org/stable/c/b22a2da8792a7bfe743c1a922e77fa499ddedbe8 cve-icon
https://git.kernel.org/stable/c/e7216651b94e92e5433fb2f54b77864642b4ea48 cve-icon
History

Wed, 24 Jun 2026 18:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
CWE-787

Wed, 24 Jun 2026 17:15:00 +0000

Type Values Removed Values Added
Description 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.
Title KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-06-24T16:28:47.438Z

Reserved: 2026-06-09T07:44:35.375Z

Link: CVE-2026-52968

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-24T18:30:06Z

Weaknesses