Medium
xen — security advisory
Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.
- Products
- xen
- Affected versions
- 4.11.3+24-g14b62ab3e5-1ubuntu1, 4.11.3+24-g14b62ab3e5-1ubuntu2, 4.11.3+24-g14b62ab3e5-1ubuntu2.2, 4.11.3+24-g14b62ab3e5-1ubuntu2.3, 4.11.4+24-gddaaccbbab-1ubuntu2, 4.16.0-1~ubuntu2, 4.16.0-1~ubuntu2.1, 4.17.2+55-g0b56bed864-1, 4.17.2+76-ge1f9cb16e2-1, 4.17.2+76-ge1f9cb16e2-1ubuntu1, 4.17.2-1, 4.17.3+10-g091466ba55-1, 4.17.3+10-g091466ba55-1.1ubuntu2, 4.17.3+10-g091466ba55-1.1ubuntu3, 4.20.0+68-g35cb38b222-1, 4.20.0-1ubuntu1, 4.20.2+37-g61ff35323e-1ubuntu1, 4.20.2+7-g1badcf5035-2, 4.20.2+7-g1badcf5035-2build2, 4.20.3+127-gc42374a105-1, 4.5.1-0ubuntu1, 4.5.1-0ubuntu2, 4.6.0-1ubuntu1, 4.6.0-1ubuntu2, 4.6.0-1ubuntu4, 4.6.0-1ubuntu4.1, 4.6.0-1ubuntu4.2, 4.6.0-1ubuntu4.3, 4.6.5-0ubuntu1, 4.6.5-0ubuntu1.1, 4.6.5-0ubuntu1.2, 4.6.5-0ubuntu1.4, 4.9.0-0ubuntu3, 4.9.0-0ubuntu4, 4.9.2-0ubuntu1, 4.9.2-0ubuntu2, 4.9.2-0ubuntu6, 4.9.2-0ubuntu7
- Fixed versions
- Not specified
- CVEs
- CVE-2022-23035
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:45 UTC · Revision 1
Source evidence
Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.
osv:UBUNTU-CVE-2022-23035
xen
Fixed versions: Not specified
xen
Fixed versions: Not specified
xen
Fixed versions: Not specified
xen
Fixed versions: Not specified
xen
Fixed versions: Not specified
xen
Fixed versions: Not specified
xen
Fixed versions: Not specified
xen
Fixed versions: Not specified
Complete source record
{
"id": "137b2128e506bb3fc10c86d5ff63420952fc1f06a8318dc1d44ae499448ff032",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2022-23035",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2022-23035",
"summary": "Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.",
"evidence": "osv:UBUNTU-CVE-2022-23035",
"products": [
{
"name": {
"value": "xen",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.5.1-0ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "4.5.1-0ubuntu2",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.0-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.0-1ubuntu2",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.0-1ubuntu4",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.0-1ubuntu4.1",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.0-1ubuntu4.2",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.0-1ubuntu4.3",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.5-0ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.5-0ubuntu1.1",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.5-0ubuntu1.2",
"evidence": "/affected/0/versions"
},
{
"value": "4.6.5-0ubuntu1.4",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "xen",
"evidence": "/affected/1/package/name"
},
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"affected_versions": [
{
"value": "4.9.0-0ubuntu3",
"evidence": "/affected/1/versions"
},
{
"value": "4.9.0-0ubuntu4",
"evidence": "/affected/1/versions"
},
{
"value": "4.9.2-0ubuntu1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
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"affected_versions": [
{
"value": "4.9.2-0ubuntu2",
"evidence": "/affected/2/versions"
},
{
"value": "4.9.2-0ubuntu6",
"evidence": "/affected/2/versions"
},
{
"value": "4.9.2-0ubuntu7",
"evidence": "/affected/2/versions"
},
{
"value": "4.11.3+24-g14b62ab3e5-1ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "4.11.3+24-g14b62ab3e5-1ubuntu2",
"evidence": "/affected/2/versions"
},
{
"value": "4.11.3+24-g14b62ab3e5-1ubuntu2.2",
"evidence": "/affected/2/versions"
},
{
"value": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "xen",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.11.4+24-gddaaccbbab-1ubuntu2",
"evidence": "/affected/3/versions"
},
{
"value": "4.16.0-1~ubuntu2",
"evidence": "/affected/3/versions"
},
{
"value": "4.16.0-1~ubuntu2.1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "xen",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.17.2-1",
"evidence": "/affected/4/versions"
},
{
"value": "4.17.2+55-g0b56bed864-1",
"evidence": "/affected/4/versions"
},
{
"value": "4.17.2+76-ge1f9cb16e2-1",
"evidence": "/affected/4/versions"
},
{
"value": "4.17.2+76-ge1f9cb16e2-1ubuntu1",
"evidence": "/affected/4/versions"
},
{
"value": "4.17.3+10-g091466ba55-1",
"evidence": "/affected/4/versions"
},
{
"value": "4.17.3+10-g091466ba55-1.1ubuntu2",
"evidence": "/affected/4/versions"
},
{
"value": "4.17.3+10-g091466ba55-1.1ubuntu3",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "xen",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.20.0-1ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "4.20.0+68-g35cb38b222-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "xen",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.20.2+7-g1badcf5035-2build2",
"evidence": "/affected/6/versions"
},
{
"value": "4.20.2+37-g61ff35323e-1ubuntu1",
"evidence": "/affected/6/versions"
},
{
"value": "4.20.3+127-gc42374a105-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "xen",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.20.0+68-g35cb38b222-1",
"evidence": "/affected/7/versions"
},
{
"value": "4.20.2+7-g1badcf5035-2",
"evidence": "/affected/7/versions"
},
{
"value": "4.20.2+7-g1badcf5035-2build2",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2022-23035",
"aliases": [
"UBUNTU-CVE-2022-23035"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "xen",
"purl": "pkg:deb/ubuntu/xen?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"4.5.1-0ubuntu1",
"4.5.1-0ubuntu2",
"4.6.0-1ubuntu1",
"4.6.0-1ubuntu2",
"4.6.0-1ubuntu4",
"4.6.0-1ubuntu4.1",
"4.6.0-1ubuntu4.2",
"4.6.0-1ubuntu4.3",
"4.6.5-0ubuntu1",
"4.6.5-0ubuntu1.1",
"4.6.5-0ubuntu1.2",
"4.6.5-0ubuntu1.4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-23035.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxen-4.6",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "libxenstore3.0",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-hypervisor-4.4-amd64",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-hypervisor-4.4-arm64",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-hypervisor-4.4-armhf",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-hypervisor-4.5-amd64",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-hypervisor-4.5-arm64",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-hypervisor-4.5-armhf",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-hypervisor-4.6-amd64",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-hypervisor-4.6-arm64",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-hypervisor-4.6-armhf",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-system-amd64",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-system-arm64",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-system-armhf",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-utils-4.6",
"binary_version": "4.6.5-0ubuntu1.4"
},
{
"binary_name": "xen-utils-common",
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},
{
"binary_name": "xenstore-utils",
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}
]
}
},
{
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}
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}
],
"package": {
"name": "xen",
"purl": "pkg:deb/ubuntu/xen?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"4.9.0-0ubuntu3",
"4.9.0-0ubuntu4",
"4.9.2-0ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-23035.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxen-4.9",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "libxenstore3.0",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-hypervisor-4.6-amd64",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-hypervisor-4.6-arm64",
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{
"binary_name": "xen-hypervisor-4.6-armhf",
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},
{
"binary_name": "xen-hypervisor-4.7-amd64",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-hypervisor-4.7-arm64",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-hypervisor-4.7-armhf",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-hypervisor-4.8-amd64",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-hypervisor-4.8-arm64",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-hypervisor-4.8-armhf",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-hypervisor-4.9-amd64",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-hypervisor-4.9-arm64",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-hypervisor-4.9-armhf",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-system-amd64",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-system-arm64",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-system-armhf",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-utils-4.9",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xen-utils-common",
"binary_version": "4.9.2-0ubuntu1"
},
{
"binary_name": "xenstore-utils",
"binary_version": "4.9.2-0ubuntu1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "xen",
"purl": "pkg:deb/ubuntu/xen?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"4.9.2-0ubuntu2",
"4.9.2-0ubuntu6",
"4.9.2-0ubuntu7",
"4.11.3+24-g14b62ab3e5-1ubuntu1",
"4.11.3+24-g14b62ab3e5-1ubuntu2",
"4.11.3+24-g14b62ab3e5-1ubuntu2.2",
"4.11.3+24-g14b62ab3e5-1ubuntu2.3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-23035.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxencall1",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "libxendevicemodel1",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "libxenevtchn1",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "libxenforeignmemory1",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "libxengnttab1",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "libxenmisc4.11",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "libxenstore3.0",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "libxentoolcore1",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "libxentoollog1",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xen-hypervisor-4.11-amd64",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xen-hypervisor-4.11-arm64",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xen-hypervisor-4.11-armhf",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xen-hypervisor-4.9-amd64",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xen-hypervisor-4.9-arm64",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xen-hypervisor-4.9-armhf",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xen-hypervisor-common",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xen-system-amd64",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xen-system-arm64",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xen-system-armhf",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xen-utils-4.11",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xen-utils-common",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
},
{
"binary_name": "xenstore-utils",
"binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "xen",
"purl": "pkg:deb/ubuntu/xen?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"4.11.4+24-gddaaccbbab-1ubuntu2",
"4.16.0-1~ubuntu2",
"4.16.0-1~ubuntu2.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-23035.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxencall1",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "libxendevicemodel1",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "libxenevtchn1",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "libxenforeignmemory1",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "libxengnttab1",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "libxenhypfs1",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "libxenmisc4.16",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "libxenstore4",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "libxentoolcore1",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "libxentoollog1",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "xen-hypervisor-4.16-amd64",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "xen-hypervisor-4.16-arm64",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "xen-hypervisor-4.16-armhf",
"binary_version": "4.16.0-1~ubuntu2.1"
},
{
"binary_name": "xen-hypervisor-common",
"binary_version": "4.16.0-1~ubuntu2.1"
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"modified": "2026-10-17T12:56:02.041023913Z",
"provider": "osv",
"upstream": [
"CVE-2022-23035"
],
"references": [
"https://ubuntu.com/security/CVE-2022-23035",
"https://xenbits.xen.org/xsa/advisory-395.html",
"https://xenbits.xenproject.org/xsa/advisory-395.txt",
"https://www.cve.org/CVERecord?id=CVE-2022-23035"
]
},
"related_cves": [
{
"value": "CVE-2022-23035",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 354626,
"published_at": "2022-01-25T14:15:00+00:00"
}