CVE-2026-68454

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Fix handling of AIF enable without AISB When a guest seeks to register IRQs without a summary bit specified, ensure that the associated GAITE then stores 0 for the guest AISB location instead of virt_to_phys(page_address(NULL)).

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://git.kernel.org/stable/c/124a3769c43713a11a93a821b313e61ad5110cb8
https://git.kernel.org/stable/c/3e3aa6da87d30a0064a17b836685cd43c90a3572
https://git.kernel.org/stable/c/3ef3190e30601b2688bdc64169b938b8d7f42010
https://git.kernel.org/stable/c/d48b9b096d11e31690c0a4988f65f21b64c01b2a
https://git.kernel.org/stable/c/df72596278b0e22dac5ef2881e9221a3a2c4ed11
https://git.kernel.org/stable/c/f887df91826e72b570c5e9298e66dd929f09edde

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-13 15:19

Updated : 2026-08-17 06:17

NVD link : CVE-2026-68454

Mitre link : CVE-2026-68454

CVE.ORG link : CVE-2026-68454

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-68454", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.0}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "lessThan": "f887df91826e72b570c5e9298e66dd929f09edde", "versionType": "git"}, {"status": "affected", "version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "lessThan": "3ef3190e30601b2688bdc64169b938b8d7f42010", "versionType": "git"}, {"status": "affected", "version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "lessThan": "d48b9b096d11e31690c0a4988f65f21b64c01b2a", "versionType": "git"}, {"status": "affected", "version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "lessThan": "df72596278b0e22dac5ef2881e9221a3a2c4ed11", "versionType": "git"}, {"status": "affected", "version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "lessThan": "124a3769c43713a11a93a821b313e61ad5110cb8", "versionType": "git"}, {"status": "affected", "version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "lessThan": "3e3aa6da87d30a0064a17b836685cd43c90a3572", "versionType": "git"}], "programFiles": ["arch/s390/kvm/pci.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"status": "unaffected", "version": "0", "lessThan": "6.0", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.178", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.145", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.97", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.40", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.5", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["arch/s390/kvm/pci.c"], "defaultStatus": "affected"}]}], "published": "2026-08-13T15:19:58.210", "references": [{"url": "https://git.kernel.org/stable/c/124a3769c43713a11a93a821b313e61ad5110cb8", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3e3aa6da87d30a0064a17b836685cd43c90a3572", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3ef3190e30601b2688bdc64169b938b8d7f42010", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d48b9b096d11e31690c0a4988f65f21b64c01b2a", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/df72596278b0e22dac5ef2881e9221a3a2c4ed11", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f887df91826e72b570c5e9298e66dd929f09edde", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: pci: Fix handling of AIF enable without AISB\n\nWhen a guest seeks to register IRQs without a summary bit specified,\nensure that the associated GAITE then stores 0 for the guest AISB\nlocation instead of virt_to_phys(page_address(NULL))."}], "lastModified": "2026-08-17T06:17:54.547", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}