Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.0, < 6.1.175 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/11b8ff5b930b351dd1f6f088dce0beb027ac92d0Patch
- https://git.kernel.org/stable/c/16d990a15491cf76cd6eef0846e1b4100e63261aPatch
- https://git.kernel.org/stable/c/31a9d9f9942885aae356a1a57c79e82c5b5b0828Patch
- https://git.kernel.org/stable/c/a99a25db131ece5e6c0f7632da606de631efe4f2Patch
- https://git.kernel.org/stable/c/b22a2da8792a7bfe743c1a922e77fa499ddedbe8Patch
- https://git.kernel.org/stable/c/e7216651b94e92e5433fb2f54b77864642b4ea48Patch
FAQ
What is CVE-2026-52968?
CVE-2026-52968 is a vulnerability with a CVSS score of 8.8 (HIGH). 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_disab...
How severe is CVE-2026-52968?
CVE-2026-52968 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-52968?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.