CVE-2025-40001 (GCVE-0-2025-40001)
Vulnerability from cvelistv5 – Published: 2025-10-18 08:03 – Updated: 2026-05-11 21:40
VLAI
EPSS
VEX
Title
scsi: mvsas: Fix use-after-free bugs in mvs_work_queue
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: mvsas: Fix use-after-free bugs in mvs_work_queue
During the detaching of Marvell's SAS/SATA controller, the original code
calls cancel_delayed_work() in mvs_free() to cancel the delayed work
item mwq->work_q. However, if mwq->work_q is already running, the
cancel_delayed_work() may fail to cancel it. This can lead to
use-after-free scenarios where mvs_free() frees the mvs_info while
mvs_work_queue() is still executing and attempts to access the
already-freed mvs_info.
A typical race condition is illustrated below:
CPU 0 (remove) | CPU 1 (delayed work callback)
mvs_pci_remove() |
mvs_free() | mvs_work_queue()
cancel_delayed_work() |
kfree(mvi) |
| mvi-> // UAF
Replace cancel_delayed_work() with cancel_delayed_work_sync() to ensure
that the delayed work item is properly canceled and any executing
delayed work item completes before the mvs_info is deallocated.
This bug was found by static analysis.
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
20b09c2992fefbe78f8cede7b404fb143a413c52 , < a6f68f219d4d4b92d7c781708d4afc4cc42961ec
(git)
Affected: 20b09c2992fefbe78f8cede7b404fb143a413c52 , < aacd1777d4a795c387a20b9ca776e2c1225d05d7 (git) Affected: 20b09c2992fefbe78f8cede7b404fb143a413c52 , < 6ba7e73cafd155a5d3abf560d315f0bab2b9d89f (git) Affected: 20b09c2992fefbe78f8cede7b404fb143a413c52 , < c2c35cb2a31844f84f21ab364b38b4309d756d42 (git) Affected: 20b09c2992fefbe78f8cede7b404fb143a413c52 , < 3c90f583d679c81a5a607a6ae0051251b6dee35b (git) Affected: 20b09c2992fefbe78f8cede7b404fb143a413c52 , < 00d3af40b158ebf7c7db2b3bbb1598a54bf28127 (git) Affected: 20b09c2992fefbe78f8cede7b404fb143a413c52 , < feb946d2fc9dc754bf3d594d42cd228860ff8647 (git) Affected: 20b09c2992fefbe78f8cede7b404fb143a413c52 , < 60cd16a3b7439ccb699d0bf533799eeb894fd217 (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.31
Unaffected: 0 , < 2.6.31 (semver) Unaffected: 5.4.301 , ≤ 5.4.* (semver) Unaffected: 5.10.246 , ≤ 5.10.* (semver) Unaffected: 5.15.195 , ≤ 5.15.* (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
guessed |
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},
{
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},
{
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},
{
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"version": "6.17.4",
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},
{
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"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mvsas: Fix use-after-free bugs in mvs_work_queue\n\nDuring the detaching of Marvell\u0027s SAS/SATA controller, the original code\ncalls cancel_delayed_work() in mvs_free() to cancel the delayed work\nitem mwq-\u003ework_q. However, if mwq-\u003ework_q is already running, the\ncancel_delayed_work() may fail to cancel it. This can lead to\nuse-after-free scenarios where mvs_free() frees the mvs_info while\nmvs_work_queue() is still executing and attempts to access the\nalready-freed mvs_info.\n\nA typical race condition is illustrated below:\n\nCPU 0 (remove) | CPU 1 (delayed work callback)\nmvs_pci_remove() |\n mvs_free() | mvs_work_queue()\n cancel_delayed_work() |\n kfree(mvi) |\n | mvi-\u003e // UAF\n\nReplace cancel_delayed_work() with cancel_delayed_work_sync() to ensure\nthat the delayed work item is properly canceled and any executing\ndelayed work item completes before the mvs_info is deallocated.\n\nThis bug was found by static analysis."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:40:33.447Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/a6f68f219d4d4b92d7c781708d4afc4cc42961ec"
},
{
"url": "https://git.kernel.org/stable/c/aacd1777d4a795c387a20b9ca776e2c1225d05d7"
},
{
"url": "https://git.kernel.org/stable/c/6ba7e73cafd155a5d3abf560d315f0bab2b9d89f"
},
{
"url": "https://git.kernel.org/stable/c/c2c35cb2a31844f84f21ab364b38b4309d756d42"
},
{
"url": "https://git.kernel.org/stable/c/3c90f583d679c81a5a607a6ae0051251b6dee35b"
},
{
"url": "https://git.kernel.org/stable/c/00d3af40b158ebf7c7db2b3bbb1598a54bf28127"
},
{
"url": "https://git.kernel.org/stable/c/feb946d2fc9dc754bf3d594d42cd228860ff8647"
},
{
"url": "https://git.kernel.org/stable/c/60cd16a3b7439ccb699d0bf533799eeb894fd217"
}
],
"title": "scsi: mvsas: Fix use-after-free bugs in mvs_work_queue",
"x_generator": {
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}
}
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"cveMetadata": {
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"cveId": "CVE-2025-40001",
"datePublished": "2025-10-18T08:03:21.935Z",
"dateReserved": "2025-04-16T07:20:57.151Z",
"dateUpdated": "2026-05-11T21:40:33.447Z",
"state": "PUBLISHED"
},
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"dataVersion": "5.2",
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"cve": "CVE-2025-40001",
"date": "2026-11-06",
"epss": "0.00259",
"percentile": "0.17636"
},
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"current_release_date": "2025-12-07T01:38:50.000Z",
"cve": "CVE-2025-40001",
"id": "msrc_CVE-2025-40001",
"initial_release_date": "2025-10-02T00:00:00.000Z",
"product_status:fixed": "1",
"product_status:known_affected": "3",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "scsi: mvsas: Fix use-after-free bugs in mvs_work_queue",
"url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-40001.json",
"version": "2"
},
"nvd": {
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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{
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},
{
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"versions": [
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{
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{
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{
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{
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"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.12.54",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.17.4",
"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\nscsi: mvsas: Fix use-after-free bugs in mvs_work_queue\n\nDuring the detaching of Marvell\u0027s SAS/SATA controller, the original code\ncalls cancel_delayed_work() in mvs_free() to cancel the delayed work\nitem mwq-\u003ework_q. However, if mwq-\u003ework_q is already running, the\ncancel_delayed_work() may fail to cancel it. This can lead to\nuse-after-free scenarios where mvs_free() frees the mvs_info while\nmvs_work_queue() is still executing and attempts to access the\nalready-freed mvs_info.\n\nA typical race condition is illustrated below:\n\nCPU 0 (remove) | CPU 1 (delayed work callback)\nmvs_pci_remove() |\n mvs_free() | mvs_work_queue()\n cancel_delayed_work() |\n kfree(mvi) |\n | mvi-\u003e // UAF\n\nReplace cancel_delayed_work() with cancel_delayed_work_sync() to ensure\nthat the delayed work item is properly canceled and any executing\ndelayed work item completes before the mvs_info is deallocated.\n\nThis bug was found by static analysis."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nscsi: mvsas: Corrige errores de uso despu\u00e9s de liberaci\u00f3n en mvs_work_queue\n\nDurante la desconexi\u00f3n del controlador SAS/SATA de Marvell, el c\u00f3digo original llama a cancel_delayed_work() en mvs_free() para cancelar el elemento de trabajo retrasado mwq-\u003ework_q. Sin embargo, si mwq-\u003ework_q ya est\u00e1 en ejecuci\u00f3n, cancel_delayed_work() puede fallar al cancelarlo. Esto puede llevar a escenarios de uso despu\u00e9s de liberaci\u00f3n donde mvs_free() libera el mvs_info mientras mvs_work_queue() todav\u00eda se est\u00e1 ejecutando e intenta acceder al mvs_info ya liberado.\n\nUna condici\u00f3n de carrera t\u00edpica se ilustra a continuaci\u00f3n:\n\nCPU 0 (eliminaci\u00f3n) | CPU 1 (callback de trabajo retrasado)\nmvs_pci_remove() |\n mvs_free() |\n cancel_delayed_work() |\n kfree(mvi) |\n | mvi-\u003e // UAF\n\nReemplace cancel_delayed_work() con cancel_delayed_work_sync() para asegurar que el elemento de trabajo retrasado se cancele correctamente y cualquier elemento de trabajo retrasado en ejecuci\u00f3n se complete antes de que se desasigne el mvs_info.\n\nEste error fue encontrado mediante an\u00e1lisis est\u00e1tico."
}
],
"id": "CVE-2025-40001",
"lastModified": "2026-10-19T21:10:00.160",
"metrics": {},
"published": "2025-10-18T08:15:34.130",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/00d3af40b158ebf7c7db2b3bbb1598a54bf28127"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3c90f583d679c81a5a607a6ae0051251b6dee35b"
},
{
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"url": "https://git.kernel.org/stable/c/60cd16a3b7439ccb699d0bf533799eeb894fd217"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/6ba7e73cafd155a5d3abf560d315f0bab2b9d89f"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/a6f68f219d4d4b92d7c781708d4afc4cc42961ec"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/aacd1777d4a795c387a20b9ca776e2c1225d05d7"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/c2c35cb2a31844f84f21ab364b38b4309d756d42"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/feb946d2fc9dc754bf3d594d42cd228860ff8647"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-11-05T15:17:09+00:00",
"cve": "CVE-2025-40001",
"id": "CVE-2025-40001",
"initial_release_date": "2025-10-18T00:00:00+00:00",
"product_status:known_affected": "42",
"product_status:known_not_affected": "158",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: scsi: mvsas: Fix use-after-free bugs in mvs_work_queue",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40001.json",
"version": "3"
}
}
}
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| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- 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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.