HighFix available
s390/vfio_ccw: Ensure index for read/write regions are within range
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Ensure index for read/write regions are within range The introduction of the capability chain rightly clamped the region indexes to the range of the capabilities itself, but neglected to do so for the existing read/write regions which should also be enforced.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.218, 6.1.184, 6.12.105, 6.18.46, 6.6.153, 7.1.10
- CVEs
- CVE-2026-80552
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 15:25 UTC · Revision 1
Source evidence
s390/vfio_ccw: Ensure index for read/write regions are within range
core-osv · Original sourcePublished 26 Aug 2026, 14:37 UTC
In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Ensure index for read/write regions are within range The introduction of the capability chain rightly clamped the region indexes to the range of the capabilities itself, but neglected to do so for the existing read/write regions which should also be enforced.
osv:CVE-2026-80552
Kernel
Fixed versions: 5.15.218, 6.1.184, 6.6.153, 6.12.105, 6.18.46, 7.1.10
Complete source record
{
"id": "abf559794b922cc1e8d4e443aba1deb3949888105004a0e5812a31fb0b050efa",
"url": "https://osv.dev/vulnerability/CVE-2026-80552",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "s390/vfio_ccw: Ensure index for read/write regions are within range",
"summary": "In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Ensure index for read/write regions are within range The introduction of the capability chain rightly clamped the region indexes to the range of the capabilities itself, but neglected to do so for the existing read/write regions which should also be enforced.",
"evidence": "osv:CVE-2026-80552",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
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"prerequisites": [],
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"value": "5.15.218",
"evidence": "/affected/1/ranges"
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{
"value": "6.1.184",
"evidence": "/affected/1/ranges"
},
{
"value": "6.6.153",
"evidence": "/affected/1/ranges"
},
{
"value": "6.12.105",
"evidence": "/affected/1/ranges"
},
{
"value": "6.18.46",
"evidence": "/affected/1/ranges"
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{
"value": "7.1.10",
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}
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"affected_versions": []
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],
"severity": "high",
"structured": {
"id": "CVE-2026-80552",
"aliases": [
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"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
}
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"affected": [
{
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{
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{
"ranges": [
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"events": [
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{
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{
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{
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"events": [
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{
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]
},
{
"type": "ECOSYSTEM",
"events": [
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{
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},
{
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"events": [
{
"introduced": "6.13.0"
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{
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},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.19.0"
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{
"fixed": "7.1.10"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80552.json"
}
}
],
"modified": "2026-10-28T02:30:29.754620847Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99",
"https://git.kernel.org/stable/c/649badf3a2fd8929e40198603a2cb21b74c21700",
"https://git.kernel.org/stable/c/79ea5e0c4c8a9842ae85f45062d947b3297dfc07",
"https://git.kernel.org/stable/c/988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf",
"https://git.kernel.org/stable/c/9f5f9a78fedc45bc29d6a0a64e3a3472361afae5",
"https://git.kernel.org/stable/c/d3b1e38404b22df5a1f93019f2bb656feaad5ae3",
"https://git.kernel.org/stable/c/d597fa1273802941c7801202135976fecc29672b",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80552.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-80552",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80552.json"
}
},
"related_cves": [
{
"value": "CVE-2026-80552",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 496800,
"published_at": "2026-08-26T14:37:21.178+00:00"
}