{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52968", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.375Z", "datePublished": "2026-06-24T16:28:47.438Z", "dateUpdated": "2026-06-24T16:28:47.438Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-24T16:28:47.438Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic\n\nkvm_s390_pci_aif_enable(), kvm_s390_pci_aif_disable(), and\naen_host_forward() index the GAIT by manually multiplying the index\nwith sizeof(struct zpci_gaite).\n\nSince aift->gait is already a struct zpci_gaite pointer, this\ndouble-scales the offset, accessing element aisb*16 instead of aisb.\n\nThis causes out-of-bounds accesses when aisb >= 32 (with\nZPCI_NR_DEVICES=512)\n\nFix by removing the erroneous sizeof multiplication."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/s390/kvm/interrupt.c", "arch/s390/kvm/pci.c"], "versions": [{"version": "73f91b004321f2510fa79e66035dbbf1870fcf56", "lessThan": "31a9d9f9942885aae356a1a57c79e82c5b5b0828", "status": "affected", "versionType": "git"}, {"version": "73f91b004321f2510fa79e66035dbbf1870fcf56", "lessThan": "a99a25db131ece5e6c0f7632da606de631efe4f2", "status": "affected", "versionType": "git"}, {"version": "73f91b004321f2510fa79e66035dbbf1870fcf56", "lessThan": "11b8ff5b930b351dd1f6f088dce0beb027ac92d0", "status": "affected", "versionType": "git"}, {"version": "73f91b004321f2510fa79e66035dbbf1870fcf56", "lessThan": "b22a2da8792a7bfe743c1a922e77fa499ddedbe8", "status": "affected", "versionType": "git"}, {"version": "73f91b004321f2510fa79e66035dbbf1870fcf56", "lessThan": "e7216651b94e92e5433fb2f54b77864642b4ea48", "status": "affected", "versionType": "git"}, {"version": "73f91b004321f2510fa79e66035dbbf1870fcf56", "lessThan": "16d990a15491cf76cd6eef0846e1b4100e63261a", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/s390/kvm/interrupt.c", "arch/s390/kvm/pci.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.141", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.91", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.141"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.12.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/31a9d9f9942885aae356a1a57c79e82c5b5b0828"}, {"url": "https://git.kernel.org/stable/c/a99a25db131ece5e6c0f7632da606de631efe4f2"}, {"url": "https://git.kernel.org/stable/c/11b8ff5b930b351dd1f6f088dce0beb027ac92d0"}, {"url": "https://git.kernel.org/stable/c/b22a2da8792a7bfe743c1a922e77fa499ddedbe8"}, {"url": "https://git.kernel.org/stable/c/e7216651b94e92e5433fb2f54b77864642b4ea48"}, {"url": "https://git.kernel.org/stable/c/16d990a15491cf76cd6eef0846e1b4100e63261a"}], "title": "KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{}

{"bugzilla": {"description": "kernel: KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic", "id": "2492289", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492289"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-468", "details": ["A flaw was found in the Linux kernel's KVM (Kernel-based Virtual Machine) subsystem, specifically affecting s390 PCI devices. This vulnerability arises from incorrect pointer arithmetic during the indexing of the Guest Access Instruction Table (GAIT), leading to out-of-bounds memory access. A local attacker or a malicious guest operating system could exploit this to read or write data beyond allocated memory boundaries, potentially causing system instability or a denial of service."], "name": "CVE-2026-52968", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-52968\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-52968\nhttps://lore.kernel.org/linux-cve-announce/2026062438-CVE-2026-52968-8803@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[73f91b004321f2510fa79e66035dbbf1870fcf56,31a9d9f9942885aae356a1a57c79e82c5b5b0828)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[73f91b004321f2510fa79e66035dbbf1870fcf56,a99a25db131ece5e6c0f7632da606de631efe4f2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[73f91b004321f2510fa79e66035dbbf1870fcf56,11b8ff5b930b351dd1f6f088dce0beb027ac92d0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[73f91b004321f2510fa79e66035dbbf1870fcf56,b22a2da8792a7bfe743c1a922e77fa499ddedbe8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[73f91b004321f2510fa79e66035dbbf1870fcf56,e7216651b94e92e5433fb2f54b77864642b4ea48)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[73f91b004321f2510fa79e66035dbbf1870fcf56,16d990a15491cf76d6eef0846e1b4100e63261a)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.175,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.141,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.91,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.33,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-24T18:30:06.420473+00:00", "updated": "2026-06-26T01:45:16.827870+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-125", "CWE-787", "CWE-468"]}