CVE-2025-71233 (GCVE-0-2025-71233)
Vulnerability from cvelistv5 – Published: 2026-02-18 14:53 – Updated: 2026-02-18 14:53
VLAI?
Title
PCI: endpoint: Avoid creating sub-groups asynchronously
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]
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d9af3cf58bb4c8d6dea4166011c780756b1138b5
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 24a253c3aa6d9a2cde46158ce9782e023bfbf32d (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 73cee890adafa2c219bb865356e08e7f82423fe5 (git) |
||
{
"containers": {
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"affected": [
{
"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": [
{
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"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
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"status": "affected",
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"versionType": "git"
},
{
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"status": "affected",
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"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": [
{
"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"
}
]
}
],
"cpeApplicability": [
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"nodes": [
{
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{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.72",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.19.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"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]"
}
],
"providerMetadata": {
"dateUpdated": "2026-02-18T14:53:17.926Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/d9af3cf58bb4c8d6dea4166011c780756b1138b5"
},
{
"url": "https://git.kernel.org/stable/c/24a253c3aa6d9a2cde46158ce9782e023bfbf32d"
},
{
"url": "https://git.kernel.org/stable/c/73cee890adafa2c219bb865356e08e7f82423fe5"
}
],
"title": "PCI: endpoint: Avoid creating sub-groups asynchronously",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-71233",
"datePublished": "2026-02-18T14:53:17.926Z",
"dateReserved": "2026-02-18T14:25:13.845Z",
"dateUpdated": "2026-02-18T14:53:17.926Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-71233\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-02-18T16:22:30.080\",\"lastModified\":\"2026-02-18T17:51:53.510\",\"vulnStatus\":\"Awaiting Analysis\",\"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]\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/24a253c3aa6d9a2cde46158ce9782e023bfbf32d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/73cee890adafa2c219bb865356e08e7f82423fe5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d9af3cf58bb4c8d6dea4166011c780756b1138b5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
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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