CVE-2025-68791 (GCVE-0-2025-68791)
Vulnerability from cvelistv5 – Published: 2026-01-13 15:29 – Updated: 2026-05-11 21:53
VLAI
EPSS
VEX
Title
fuse: missing copy_finish in fuse-over-io-uring argument copies
Summary
In the Linux kernel, the following vulnerability has been resolved:
fuse: missing copy_finish in fuse-over-io-uring argument copies
Fix a possible reference count leak of payload pages during
fuse argument copies.
[Joanne: simplified error cleanup]
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
c090c8abae4b6b77a1bee116aa6c385456ebef96 , < b79938863f436960eff209130f025c4bd3026bf8
(git)
Affected: c090c8abae4b6b77a1bee116aa6c385456ebef96 , < 6e0d7f7f4a43ac8868e98c87ecf48805aa8c24dd (git) |
guessed | |
| Linux | Linux |
Affected:
6.14
Unaffected: 0 , < 6.14 (semver) Unaffected: 6.18.3 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix) |
guessed |
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"programFiles": [
"fs/fuse/dev.c",
"fs/fuse/dev_uring.c",
"fs/fuse/fuse_dev_i.h"
],
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"versionType": "git"
},
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}
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},
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"vendor": "Linux",
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},
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},
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"version": "6.18.3",
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},
{
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"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.3",
"versionStartIncluding": "6.14",
"vulnerable": true
},
{
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: missing copy_finish in fuse-over-io-uring argument copies\n\nFix a possible reference count leak of payload pages during\nfuse argument copies.\n\n[Joanne: simplified error cleanup]"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:53:24.493Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/b79938863f436960eff209130f025c4bd3026bf8"
},
{
"url": "https://git.kernel.org/stable/c/6e0d7f7f4a43ac8868e98c87ecf48805aa8c24dd"
}
],
"title": "fuse: missing copy_finish in fuse-over-io-uring argument copies",
"x_generator": {
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"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2025-68791",
"datePublished": "2026-01-13T15:29:03.553Z",
"dateReserved": "2025-12-24T10:30:51.037Z",
"dateUpdated": "2026-05-11T21:53:24.493Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-68791",
"date": "2026-09-29",
"epss": "0.00182",
"percentile": "0.06971"
},
"nvd": {
"cve": {
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"affectedData": [
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"product": "Linux",
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"fs/fuse/dev_uring.c",
"fs/fuse/fuse_dev_i.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"versionType": "git"
},
{
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"versionType": "git"
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{
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.14"
},
{
"lessThan": "6.14",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.3",
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},
{
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}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: missing copy_finish in fuse-over-io-uring argument copies\n\nFix a possible reference count leak of payload pages during\nfuse argument copies.\n\n[Joanne: simplified error cleanup]"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nfuse: falta copy_finish en las copias de argumentos de fuse-over-io-uring\n\nCorrige una posible fuga de conteo de referencias de p\u00e1ginas de carga \u00fatil durante las copias de argumentos de fuse.\n\n[Joanne: limpieza de errores simplificada]"
}
],
"id": "CVE-2025-68791",
"lastModified": "2026-06-17T09:59:35.667",
"metrics": {},
"published": "2026-01-13T16:16:00.987",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/6e0d7f7f4a43ac8868e98c87ecf48805aa8c24dd"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/b79938863f436960eff209130f025c4bd3026bf8"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-06-28T07:11:18+00:00",
"cve": "CVE-2025-68791",
"id": "CVE-2025-68791",
"initial_release_date": "2025-01-01T00:00:00+00:00",
"product_status:known_affected": "14",
"product_status:known_not_affected": "260",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: fuse: missing copy_finish in fuse-over-io-uring argument copies",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68791.json",
"version": "3"
},
"suse_vex": {
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"current_release_date": "2026-09-01T00:59:49Z",
"cve": "CVE-2025-68791",
"id": "CVE-2025-68791",
"initial_release_date": "2026-01-15T00:26:17Z",
"product_status:known_not_affected": "436",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2025-68791",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-68791.json",
"version": "10"
}
}
}
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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
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- Not confirmed: The user expressed doubt about the validity of the vulnerability.
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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.
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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.
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