UnratedFix available
KVM: s390: Fix memory leak in guest debug handling
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix memory leak in guest debug handling bp_data is freed only for the error case by kfree(bp_data). Every successful KVM_SET_GUEST_DEBUG will leak bp_data.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.270, 5.15.221, 6.1.188, 6.12.110, 6.18.51, 6.6.157, 7.2.5
- CVEs
- CVE-2026-89925
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 6 Nov 2026, 02:43 UTC · Revision 1
Source evidence
KVM: s390: Fix memory leak in guest debug handling
core-osv · Original sourcePublished 16 Sept 2026, 10:32 UTC
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix memory leak in guest debug handling bp_data is freed only for the error case by kfree(bp_data). Every successful KVM_SET_GUEST_DEBUG will leak bp_data.
osv:CVE-2026-89925
Kernel
Fixed versions: 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.51, 7.2.5
Complete source record
{
"id": "e41fb4e97cf39fbae609ae2ae4b7146ac61f2439173854e783a208123d40507e",
"url": "https://osv.dev/vulnerability/CVE-2026-89925",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "KVM: s390: Fix memory leak in guest debug handling",
"summary": "In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix memory leak in guest debug handling bp_data is freed only for the error case by kfree(bp_data). Every successful KVM_SET_GUEST_DEBUG will leak bp_data.",
"evidence": "osv:CVE-2026-89925",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.10.270",
"evidence": "/affected/1/ranges"
},
{
"value": "5.15.221",
"evidence": "/affected/1/ranges"
},
{
"value": "6.1.188",
"evidence": "/affected/1/ranges"
},
{
"value": "6.6.157",
"evidence": "/affected/1/ranges"
},
{
"value": "6.12.110",
"evidence": "/affected/1/ranges"
},
{
"value": "6.18.51",
"evidence": "/affected/1/ranges"
},
{
"value": "7.2.5",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CVE-2026-89925",
"aliases": [
"CVE-2026-89925"
],
"affected": [
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "27291e2165b6de70c476b7b675308113edd69a60"
},
{
"fixed": "39e7cebb889839b5762c9ad22e2d715b5883b288"
},
{
"fixed": "58b1b729a9f90c80b508fc3e2174cbc0ee50859e"
},
{
"fixed": "9071f75cbde3bf46119cb28e92cfbef830c4bf97"
},
{
"fixed": "5940418e4232a2ff1d30ba12e0d213dbf48f0a83"
},
{
"fixed": "fc2034c431adcbaabf5f8a01912358f07355349e"
},
{
"fixed": "44bf3792c10f4bb3de507391f1837e020d92eaa2"
},
{
"fixed": "581be9f6085834188cef1ad2f07babf3b421e409"
},
{
"fixed": "121ea1de927c8b9bfdf53c31cad27b86d5de0293"
}
]
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89925.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.16.0"
},
{
"fixed": "5.10.270"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.11.0"
},
{
"fixed": "5.15.221"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.16.0"
},
{
"fixed": "6.1.188"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.2.0"
},
{
"fixed": "6.6.157"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.7.0"
},
{
"fixed": "6.12.110"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.13.0"
},
{
"fixed": "6.18.51"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.19.0"
},
{
"fixed": "7.2.5"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89925.json"
}
}
],
"modified": "2026-10-28T02:30:46.205517952Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/121ea1de927c8b9bfdf53c31cad27b86d5de0293",
"https://git.kernel.org/stable/c/39e7cebb889839b5762c9ad22e2d715b5883b288",
"https://git.kernel.org/stable/c/44bf3792c10f4bb3de507391f1837e020d92eaa2",
"https://git.kernel.org/stable/c/581be9f6085834188cef1ad2f07babf3b421e409",
"https://git.kernel.org/stable/c/58b1b729a9f90c80b508fc3e2174cbc0ee50859e",
"https://git.kernel.org/stable/c/5940418e4232a2ff1d30ba12e0d213dbf48f0a83",
"https://git.kernel.org/stable/c/9071f75cbde3bf46119cb28e92cfbef830c4bf97",
"https://git.kernel.org/stable/c/fc2034c431adcbaabf5f8a01912358f07355349e",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89925.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-89925",
"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/2026/89xxx/CVE-2026-89925.json"
}
},
"related_cves": [
{
"value": "CVE-2026-89925",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 514383,
"published_at": "2026-09-16T10:32:18.111+00:00"
}