FKIE_CVE-2025-71233
Vulnerability from fkie_nvd - Published: 2026-02-18 16:22 - Updated: 2026-06-17 10:03
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
PCI: endpoint: Avoid creating sub-groups asynchronously
The asynchronous creation of sub-groups by a delayed work could lead to a
NULL pointer dereference when the driver directory is removed before the
work completes.
The crash can be easily reproduced with the following commands:
# cd /sys/kernel/config/pci_ep/functions/pci_epf_test
# for i in {1..20}; do mkdir test && rmdir test; done
BUG: kernel NULL pointer dereference, address: 0000000000000088
...
Call Trace:
configfs_register_group+0x3d/0x190
pci_epf_cfs_work+0x41/0x110
process_one_work+0x18f/0x350
worker_thread+0x25a/0x3a0
Fix this issue by using configfs_add_default_group() API which does not
have the deadlock problem as configfs_register_group() and does not require
the delayed work handler.
[mani: slightly reworded the description and added stable list]
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/pci/endpoint/pci-ep-cfs.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "fa9fb38f5fe9c80094c2138354d45cdc8d094d69",
"status": "affected",
"version": "e85a2d7837622bd99c96f5bbc7f972da90c285a2",
"versionType": "git"
},
{
"lessThan": "5f609b3bffd4207cf9f2c9b41e1978457a5a1ea9",
"status": "affected",
"version": "e85a2d7837622bd99c96f5bbc7f972da90c285a2",
"versionType": "git"
},
{
"lessThan": "8cb905eca73944089a0db01443c7628a9e87012d",
"status": "affected",
"version": "e85a2d7837622bd99c96f5bbc7f972da90c285a2",
"versionType": "git"
},
{
"lessThan": "d9af3cf58bb4c8d6dea4166011c780756b1138b5",
"status": "affected",
"version": "e85a2d7837622bd99c96f5bbc7f972da90c285a2",
"versionType": "git"
},
{
"lessThan": "24a253c3aa6d9a2cde46158ce9782e023bfbf32d",
"status": "affected",
"version": "e85a2d7837622bd99c96f5bbc7f972da90c285a2",
"versionType": "git"
},
{
"lessThan": "73cee890adafa2c219bb865356e08e7f82423fe5",
"status": "affected",
"version": "e85a2d7837622bd99c96f5bbc7f972da90c285a2",
"versionType": "git"
},
{
"lessThan": "7c5c7d06bd1f86d2c3ebe62be903a4ba42db4d2c",
"status": "affected",
"version": "e85a2d7837622bd99c96f5bbc7f972da90c285a2",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/pci/endpoint/pci-ep-cfs.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.12"
},
{
"lessThan": "5.12",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.201",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.164",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.127",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.72",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.11",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"version": "6.19.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7F9D9A1F-E24E-4F40-B86B-30FF1377DAFB",
"versionEndExcluding": "5.15.201",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6892F74B-3F14-4500-9652-24A2ECB04144",
"versionEndExcluding": "6.1.164",
"versionStartIncluding": "5.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4A9F36A3-A685-48A0-84B4-6217052BD058",
"versionEndExcluding": "6.6.127",
"versionStartIncluding": "6.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F1A7E514-FB3C-4B6B-8046-07D5A8F04644",
"versionEndExcluding": "6.12.72",
"versionStartIncluding": "6.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7099A9EC-3D54-4424-BF01-7224EF88C79C",
"versionEndExcluding": "6.18.11",
"versionStartIncluding": "6.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "EE543C0D-A06B-414F-A403-CB1E088F261E",
"versionEndExcluding": "6.19.1",
"versionStartIncluding": "6.19",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: Avoid creating sub-groups asynchronously\n\nThe asynchronous creation of sub-groups by a delayed work could lead to a\nNULL pointer dereference when the driver directory is removed before the\nwork completes.\n\nThe crash can be easily reproduced with the following commands:\n\n # cd /sys/kernel/config/pci_ep/functions/pci_epf_test\n # for i in {1..20}; do mkdir test \u0026\u0026 rmdir test; done\n\n BUG: kernel NULL pointer dereference, address: 0000000000000088\n ...\n Call Trace:\n configfs_register_group+0x3d/0x190\n pci_epf_cfs_work+0x41/0x110\n process_one_work+0x18f/0x350\n worker_thread+0x25a/0x3a0\n\nFix this issue by using configfs_add_default_group() API which does not\nhave the deadlock problem as configfs_register_group() and does not require\nthe delayed work handler.\n\n[mani: slightly reworded the description and added stable list]"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nPCI: endpoint: Evitar la creaci\u00f3n as\u00edncrona de subgrupos\n\nLa creaci\u00f3n as\u00edncrona de subgrupos por un trabajo retrasado podr\u00eda llevar a una desreferencia de puntero NULL cuando el directorio del controlador es eliminado antes de que el trabajo se complete.\n\nEl fallo puede ser f\u00e1cilmente reproducido con los siguientes comandos:\n\n # cd /sys/kernel/config/pci_ep/functions/pci_epf_test\n # for i in {1..20}; do mkdir test \u0026amp;\u0026amp; rmdir test; done\n\n BUG: kernel NULL pointer dereference, address: 0000000000000088\n ...\n Call Trace:\n configfs_register_group+0x3d/0x190\n pci_epf_cfs_work+0x41/0x110\n process_one_work+0x18f/0x350\n worker_thread+0x25a/0x3a0\n\nSoluciona este problema usando la API configfs_add_default_group() que no tiene el problema de interbloqueo como configfs_register_group() y no requiere el manejador de trabajo retrasado.\n\n[mani: se ha reformulado ligeramente la descripci\u00f3n y se ha a\u00f1adido la lista estable]"
}
],
"id": "CVE-2025-71233",
"lastModified": "2026-06-17T10:03:55.263",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2026-02-18T16:22:30.080",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/24a253c3aa6d9a2cde46158ce9782e023bfbf32d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/5f609b3bffd4207cf9f2c9b41e1978457a5a1ea9"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/73cee890adafa2c219bb865356e08e7f82423fe5"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/7c5c7d06bd1f86d2c3ebe62be903a4ba42db4d2c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/8cb905eca73944089a0db01443c7628a9e87012d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/d9af3cf58bb4c8d6dea4166011c780756b1138b5"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/fa9fb38f5fe9c80094c2138354d45cdc8d094d69"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
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.