Answer in brief
CVE-2026-52968 records a High severity (CVSS 8.8) vulnerability in KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=73f91b004321f2510fa79e66035dbbf1870fcf56 <31a9d9f9942885aae356a1a57c79e82c5b5b0828 || >=73f91b004321f2510fa79e66035dbbf1870fcf56 <a99a25db131ece5e6c0f7632da606de631efe4f2 || >=73f91b004321f2510fa79e66035dbbf1870fcf56 <11b8ff5b930b351dd1f6f088dce0beb027ac92d0 || >=73f91b004321f2510fa79e66035dbbf1870fcf56 <b22a2da8792a7bfe743c1a922e77fa499ddedbe8 || >=73f91b004321f2510fa79e66035dbbf1870fcf56 <e7216651b94e92e5433fb2f54b77864642b4ea48 || >=73f91b004321f2510fa79e66035dbbf1870fcf56 <16d990a15491cf76cd6eef0846e1b4100e63261a | 31a9d9f9942885aae356a1a57c79e82c5b5b0828, a99a25db131ece5e6c0f7632da606de631efe4f2, 11b8ff5b930b351dd1f6f088dce0beb027ac92d0, b22a2da8792a7bfe743c1a922e77fa499ddedbe8, e7216651b94e92e5433fb2f54b77864642b4ea48, 16d990a15491cf76cd6eef0846e1b4100e63261a |
| Linux/Linuxgeneric | 6.0 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
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.
Quoted source text, attributed separately from HOL analysis.