{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72290", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.917Z", "datePublished": "2026-08-15T05:55:11.543Z", "dateUpdated": "2026-08-17T05:11:52.778Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:11:52.778Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: pci: Fix GISC refcount leak on AIF enable failure\n\nkvm_s390_gisc_register() registers the guest ISC before pinning\nthe guest interrupt forwarding pages and allocating the AISB bit.\nIf any of the later setup steps fails, the function unwinds the\npinned pages and other local state, but does not unregister the\nGISC reference. Add the missing kvm_s390_gisc_unregister() to the\nerror unwind path."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/s390/kvm/pci.c"], "versions": [{"version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "lessThan": "3882224b0e714f34de91e5f28307c5d3fccfe8f8", "status": "affected", "versionType": "git"}, {"version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "lessThan": "6e69317cd44a2f21f8f7a9d93eb3220e868adfa8", "status": "affected", "versionType": "git"}, {"version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "lessThan": "6cd6e1c978784eec9032e2fe94a53e62b674fe3e", "status": "affected", "versionType": "git"}, {"version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "lessThan": "5fb75c5272950b3ebe8bdee7abfdafd44f38313b", "status": "affected", "versionType": "git"}, {"version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "lessThan": "adce12bb0e0dc82d1d6f0821c9faee3145e62a6f", "status": "affected", "versionType": "git"}, {"version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "lessThan": "7b69729046a4c58f4cb457184e5ac4aaa179bff4", "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/pci.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3882224b0e714f34de91e5f28307c5d3fccfe8f8"}, {"url": "https://git.kernel.org/stable/c/6e69317cd44a2f21f8f7a9d93eb3220e868adfa8"}, {"url": "https://git.kernel.org/stable/c/6cd6e1c978784eec9032e2fe94a53e62b674fe3e"}, {"url": "https://git.kernel.org/stable/c/5fb75c5272950b3ebe8bdee7abfdafd44f38313b"}, {"url": "https://git.kernel.org/stable/c/adce12bb0e0dc82d1d6f0821c9faee3145e62a6f"}, {"url": "https://git.kernel.org/stable/c/7b69729046a4c58f4cb457184e5ac4aaa179bff4"}], "title": "KVM: s390: pci: Fix GISC refcount leak on AIF enable failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["arch/s390/kvm/pci.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3882224b0e714f34de91e5f28307c5d3fccfe8f8", "status": "affected", "version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "versionType": "git"}, {"lessThan": "6e69317cd44a2f21f8f7a9d93eb3220e868adfa8", "status": "affected", "version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "versionType": "git"}, {"lessThan": "6cd6e1c978784eec9032e2fe94a53e62b674fe3e", "status": "affected", "version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "versionType": "git"}, {"lessThan": "5fb75c5272950b3ebe8bdee7abfdafd44f38313b", "status": "affected", "version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "versionType": "git"}, {"lessThan": "adce12bb0e0dc82d1d6f0821c9faee3145e62a6f", "status": "affected", "version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "versionType": "git"}, {"lessThan": "7b69729046a4c58f4cb457184e5ac4aaa179bff4", "status": "affected", "version": "3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["arch/s390/kvm/pci.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"lessThan": "6.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: pci: Fix GISC refcount leak on AIF enable failure\n\nkvm_s390_gisc_register() registers the guest ISC before pinning\nthe guest interrupt forwarding pages and allocating the AISB bit.\nIf any of the later setup steps fails, the function unwinds the\npinned pages and other local state, but does not unregister the\nGISC reference. Add the missing kvm_s390_gisc_unregister() to the\nerror unwind path."}], "id": "CVE-2026-72290", "lastModified": "2026-08-17T06:18:31.820", "metrics": {}, "published": "2026-08-15T06:22:00.917", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3882224b0e714f34de91e5f28307c5d3fccfe8f8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5fb75c5272950b3ebe8bdee7abfdafd44f38313b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6cd6e1c978784eec9032e2fe94a53e62b674fe3e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6e69317cd44a2f21f8f7a9d93eb3220e868adfa8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7b69729046a4c58f4cb457184e5ac4aaa179bff4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/adce12bb0e0dc82d1d6f0821c9faee3145e62a6f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: KVM: s390: pci: Fix GISC refcount leak on AIF enable failure", "id": "2516286", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516286"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-911", "details": ["A flaw was found in the Linux kernel's Kernel-based Virtual Machine (KVM) for s390 PCI. During the setup of guest interrupt forwarding, a reference count (refcount) to the Guest Interrupt Service Call (GISC) may not be properly released if subsequent setup steps fail. This resource leak can lead to resource exhaustion, potentially allowing a local attacker to cause a Denial of Service (DoS) to the virtualized environment."], "name": "CVE-2026-72290", "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": "Not affected", "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": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72290\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72290\nhttps://lore.kernel.org/linux-cve-announce/2026081500-CVE-2026-72290-024c@gregkh/T"], "threat_severity": "Low"}