FKIE_CVE-2025-40171
Vulnerability from fkie_nvd - Published: 2025-11-12 11:15 - Updated: 2026-07-30 06:24
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
nvmet-fc: move lsop put work to nvmet_fc_ls_req_op
It’s possible for more than one async command to be in flight from
__nvmet_fc_send_ls_req. For each command, a tgtport reference is taken.
In the current code, only one put work item is queued at a time, which
results in a leaked reference.
To fix this, move the work item to the nvmet_fc_ls_req_op struct, which
already tracks all resources related to the command.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/nvme/target/fc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "11269c08013f4ee8b8f5edc6c56700acb34092d0",
"status": "affected",
"version": "5e0bc09a52b6169ce90f7ac6e195791adb16cec4",
"versionType": "git"
},
{
"lessThan": "a28112cc55013cd8cbd5d36b5115a5b851151bd9",
"status": "affected",
"version": "9e6987f8937a7bd7516aa52f25cb7e12c0c92ee8",
"versionType": "git"
},
{
"lessThan": "060ecc81240ef9d60d9485a3a5eb55a0d6e7a25c",
"status": "affected",
"version": "eaf0971fdabf2a93c1429dc6bedf3bbe85dffa30",
"versionType": "git"
},
{
"lessThan": "7331925c247b03b7767b8cd93cfe1b7aa2377850",
"status": "affected",
"version": "710c69dbaccdac312e32931abcb8499c1525d397",
"versionType": "git"
},
{
"lessThan": "7a619f8c869117ffed08365b377f66b7e1d941b4",
"status": "affected",
"version": "710c69dbaccdac312e32931abcb8499c1525d397",
"versionType": "git"
},
{
"lessThan": "db5a5406fb7e5337a074385c7a3e53c77f2c1bd3",
"status": "affected",
"version": "710c69dbaccdac312e32931abcb8499c1525d397",
"versionType": "git"
},
{
"status": "affected",
"version": "1d86f79287206deec36d63b89c741cf542b6cadd",
"versionType": "git"
},
{
"lessThan": "5.15.195",
"status": "affected",
"version": "5.15.150",
"versionType": "semver"
},
{
"lessThan": "6.1.156",
"status": "affected",
"version": "6.1.80",
"versionType": "semver"
},
{
"lessThan": "6.6.112",
"status": "affected",
"version": "6.6.19",
"versionType": "semver"
},
{
"lessThan": "6.8",
"status": "affected",
"version": "6.7.7",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/nvme/target/fc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.8"
},
{
"lessThan": "6.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.195",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.156",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.112",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.53",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-fc: move lsop put work to nvmet_fc_ls_req_op\n\nIt\u2019s possible for more than one async command to be in flight from\n__nvmet_fc_send_ls_req. For each command, a tgtport reference is taken.\n\nIn the current code, only one put work item is queued at a time, which\nresults in a leaked reference.\n\nTo fix this, move the work item to the nvmet_fc_ls_req_op struct, which\nalready tracks all resources related to the command."
}
],
"id": "CVE-2025-40171",
"lastModified": "2026-07-30T06:24:15.820",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
}
]
},
"published": "2025-11-12T11:15:47.513",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/060ecc81240ef9d60d9485a3a5eb55a0d6e7a25c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/11269c08013f4ee8b8f5edc6c56700acb34092d0"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7331925c247b03b7767b8cd93cfe1b7aa2377850"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7a619f8c869117ffed08365b377f66b7e1d941b4"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/a28112cc55013cd8cbd5d36b5115a5b851151bd9"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/db5a5406fb7e5337a074385c7a3e53c77f2c1bd3"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
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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
- 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.
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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.
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.
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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.
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