CVE-2025-40171
Full vulnerability record from the local CVENow database.
Description
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.
Severity
HIGH
CVSS score
7.5
(v3.1)
Vulnerability status
Deferred
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-11-12 11:15:47.513000
Last modified
2026-10-19 21:10:00.160000
View original CVE JSON
{
"id": "CVE-2025-40171",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-11-12T11:15:47.513",
"lastModified": "2026-10-19T21:10:00.160",
"vulnStatus": "Deferred",
"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’s 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."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnvmet-fc: mover el trabajo de 'put' de lsop a nvmet_fc_ls_req_op\n\nEs posible que más de un comando asíncrono esté en vuelo desde __nvmet_fc_send_ls_req. Para cada comando, se toma una referencia de tgtport.\n\nEn el código actual, solo un elemento de trabajo 'put' se encola a la vez, lo que resulta en una referencia filtrada.\n\nPara corregir esto, mover el elemento de trabajo a la estructura nvmet_fc_ls_req_op, la cual ya rastrea todos los recursos relacionados con el comando."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/nvme/target/fc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "5e0bc09a52b6169ce90f7ac6e195791adb16cec4",
"lessThan": "11269c08013f4ee8b8f5edc6c56700acb34092d0",
"versionType": "git",
"status": "affected"
},
{
"version": "9e6987f8937a7bd7516aa52f25cb7e12c0c92ee8",
"lessThan": "a28112cc55013cd8cbd5d36b5115a5b851151bd9",
"versionType": "git",
"status": "affected"
},
{
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"lessThan": "060ecc81240ef9d60d9485a3a5eb55a0d6e7a25c",
"versionType": "git",
"status": "affected"
},
{
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"lessThan": "7331925c247b03b7767b8cd93cfe1b7aa2377850",
"versionType": "git",
"status": "affected"
},
{
"version": "710c69dbaccdac312e32931abcb8499c1525d397",
"lessThan": "7a619f8c869117ffed08365b377f66b7e1d941b4",
"versionType": "git",
"status": "affected"
},
{
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"lessThan": "db5a5406fb7e5337a074385c7a3e53c77f2c1bd3",
"versionType": "git",
"status": "affected"
},
{
"version": "1d86f79287206deec36d63b89c741cf542b6cadd",
"versionType": "git",
"status": "affected"
},
{
"version": "5.15.150",
"lessThan": "5.15.195",
"versionType": "semver",
"status": "affected"
},
{
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"versionType": "semver",
"status": "affected"
},
{
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"versionType": "semver",
"status": "affected"
},
{
"version": "6.7.7",
"lessThan": "6.8",
"versionType": "semver",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/nvme/target/fc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6.8",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.8",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.195",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.156",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.112",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.53",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.17.3",
"lessThanOrEqual": "6.17.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-10-15T21:57:33.774431Z",
"id": "CVE-2025-40171",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"references": [
{
"url": "https://git.kernel.org/stable/c/060ecc81240ef9d60d9485a3a5eb55a0d6e7a25c",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
"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"
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{
"url": "https://git.kernel.org/stable/c/db5a5406fb7e5337a074385c7a3e53c77f2c1bd3",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}