FKIE_CVE-2023-52639
Vulnerability from fkie_nvd - Published: 2024-04-03 15:15 - Updated: 2026-06-17 06:43
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
KVM: s390: vsie: fix race during shadow creation
Right now it is possible to see gmap->private being zero in
kvm_s390_vsie_gmap_notifier resulting in a crash. This is due to the
fact that we add gmap->private == kvm after creation:
static int acquire_gmap_shadow(struct kvm_vcpu *vcpu,
struct vsie_page *vsie_page)
{
[...]
gmap = gmap_shadow(vcpu->arch.gmap, asce, edat);
if (IS_ERR(gmap))
return PTR_ERR(gmap);
gmap->private = vcpu->kvm;
Let children inherit the private field of the parent.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.8 | |
| linux | linux_kernel | 6.8 | |
| linux | linux_kernel | 6.8 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"arch/s390/kvm/vsie.c",
"arch/s390/mm/gmap.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "5df3b81a567eb565029563f26f374ae3803a1dfc",
"status": "affected",
"version": "a3508fbe9dc6dd3bece0c7bf889cc085a011738c",
"versionType": "git"
},
{
"lessThan": "f5572c0323cf8b4f1f0618178648a25b8fb8a380",
"status": "affected",
"version": "a3508fbe9dc6dd3bece0c7bf889cc085a011738c",
"versionType": "git"
},
{
"lessThan": "28bb27824f25f36e5f80229a358d66ee09244082",
"status": "affected",
"version": "a3508fbe9dc6dd3bece0c7bf889cc085a011738c",
"versionType": "git"
},
{
"lessThan": "fe752331d4b361d43cfd0b89534b4b2176057c32",
"status": "affected",
"version": "a3508fbe9dc6dd3bece0c7bf889cc085a011738c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"arch/s390/kvm/vsie.c",
"arch/s390/mm/gmap.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.8"
},
{
"lessThan": "4.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.82",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.22",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CF875774-2060-479B-8422-FF0D07235FE3",
"versionEndExcluding": "6.1.82",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "AC6FD6F8-5B16-4F53-8116-D42F4BF4FBAC",
"versionEndExcluding": "6.6.22",
"versionStartIncluding": "6.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C6D6A5C8-7308-42A9-8A72-ABF3DEA4BB82",
"versionEndExcluding": "6.7.6",
"versionStartIncluding": "6.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*",
"matchCriteriaId": "B9F4EA73-0894-400F-A490-3A397AB7A517",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*",
"matchCriteriaId": "056BD938-0A27-4569-B391-30578B309EE3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*",
"matchCriteriaId": "F02056A5-B362-4370-9FF8-6F0BD384D520",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: vsie: fix race during shadow creation\n\nRight now it is possible to see gmap-\u003eprivate being zero in\nkvm_s390_vsie_gmap_notifier resulting in a crash. This is due to the\nfact that we add gmap-\u003eprivate == kvm after creation:\n\nstatic int acquire_gmap_shadow(struct kvm_vcpu *vcpu,\n struct vsie_page *vsie_page)\n{\n[...]\n gmap = gmap_shadow(vcpu-\u003earch.gmap, asce, edat);\n if (IS_ERR(gmap))\n return PTR_ERR(gmap);\n gmap-\u003eprivate = vcpu-\u003ekvm;\n\nLet children inherit the private field of the parent."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: KVM: s390: vsie: corrige la ejecuci\u00f3n durante la creaci\u00f3n de la sombra. En este momento es posible ver que gmap-\u0026gt;private es cero en kvm_s390_vsie_gmap_notifier, lo que provoca un bloqueo. Esto se debe al hecho de que agregamos gmap-\u0026gt;private == kvm despu\u00e9s de la creaci\u00f3n: static int adquirir_gmap_shadow(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) { [...] gmap = gmap_shadow(vcpu-\u0026gt;arch.gmap, asce, edat); si (IS_ERR(gmap)) devuelve PTR_ERR(gmap); gmap-\u0026gt;privado = vcpu-\u0026gt;kvm; Deje que los ni\u00f1os hereden el campo privado del padre."
}
],
"id": "CVE-2023-52639",
"lastModified": "2026-06-17T06:43:13.977",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.0,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-52639",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T15:53:10.387746Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-04-03T15:15:51.467",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/28bb27824f25f36e5f80229a358d66ee09244082"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/5df3b81a567eb565029563f26f374ae3803a1dfc"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/f5572c0323cf8b4f1f0618178648a25b8fb8a380"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/fe752331d4b361d43cfd0b89534b4b2176057c32"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/28bb27824f25f36e5f80229a358d66ee09244082"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/5df3b81a567eb565029563f26f374ae3803a1dfc"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/f5572c0323cf8b4f1f0618178648a25b8fb8a380"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/fe752331d4b361d43cfd0b89534b4b2176057c32"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-362"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…