UnratedFix available
PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown epf_ntb_epc_destroy() duplicates the teardown that the caller is supposed to do later. This leads to an oops when .allow_link fails or when .drop_link is performed. Remove the helper. Also drop pci_epc_put(). EPC device refcounting is tied to configfs EPC group lifetime, and pci_epc_put() in the .drop_link path is sufficient.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.209, 6.1.175, 6.12.86, 6.18.27, 6.6.140, 7.0.4
- CVEs
- CVE-2026-46009
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 11:57 UTC · Revision 1
Source evidence
PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown
core-osv · Original sourcePublished 27 May 2026, 12:56 UTC
In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown epf_ntb_epc_destroy() duplicates the teardown that the caller is supposed to do later. This leads to an oops when .allow_link fails or when .drop_link is performed. Remove the helper. Also drop pci_epc_put(). EPC device refcounting is tied to configfs EPC group lifetime, and pci_epc_put() in the .drop_link path is sufficient.
osv:CVE-2026-46009
Kernel
Fixed versions: 5.15.209, 6.1.175, 6.6.140, 6.12.86, 6.18.27, 7.0.4
Complete source record
{
"id": "0c19369dac8d44a86611b182a96b0ab1b94d69f58e5544165dcce416a4b35c25",
"url": "https://osv.dev/vulnerability/CVE-2026-46009",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown",
"summary": "In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown epf_ntb_epc_destroy() duplicates the teardown that the caller is supposed to do later. This leads to an oops when .allow_link fails or when .drop_link is performed. Remove the helper. Also drop pci_epc_put(). EPC device refcounting is tied to configfs EPC group lifetime, and pci_epc_put() in the .drop_link path is sufficient.",
"evidence": "osv:CVE-2026-46009",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.15.209",
"evidence": "/affected/1/ranges"
},
{
"value": "6.1.175",
"evidence": "/affected/1/ranges"
},
{
"value": "6.6.140",
"evidence": "/affected/1/ranges"
},
{
"value": "6.12.86",
"evidence": "/affected/1/ranges"
},
{
"value": "6.18.27",
"evidence": "/affected/1/ranges"
},
{
"value": "7.0.4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CVE-2026-46009",
"aliases": [
"CVE-2026-46009"
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"affected": [
{
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"type": "GIT",
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{
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{
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{
"fixed": "72099f015d3c77bf2eb703d1aab113bd7a60915a"
},
{
"fixed": "756ca5e7ed22d9045bb4de4c981f9149278d5cd3"
},
{
"fixed": "65fc57c8b8f0b31be62be291cb1bb01755cec85d"
},
{
"fixed": "e813c95e4c8edd31599081e6356e20ada30e266d"
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{
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}
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}
],
"database_specific": {
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}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.12.0"
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{
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}
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},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.16.0"
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{
"fixed": "6.1.175"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.2.0"
},
{
"fixed": "6.6.140"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.7.0"
},
{
"fixed": "6.12.86"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.13.0"
},
{
"fixed": "6.18.27"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.19.0"
},
{
"fixed": "7.0.4"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46009.json"
}
}
],
"modified": "2026-10-28T02:30:35.051051170Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/3446beddba450c8d6f9aca2f028712ac527fead3",
"https://git.kernel.org/stable/c/65fc57c8b8f0b31be62be291cb1bb01755cec85d",
"https://git.kernel.org/stable/c/72099f015d3c77bf2eb703d1aab113bd7a60915a",
"https://git.kernel.org/stable/c/756ca5e7ed22d9045bb4de4c981f9149278d5cd3",
"https://git.kernel.org/stable/c/c3029721b84f59e790285ad27544ed5d3cb0f2a6",
"https://git.kernel.org/stable/c/c72f6a7ea638f95c486a5cfd86e567b646027687",
"https://git.kernel.org/stable/c/e813c95e4c8edd31599081e6356e20ada30e266d",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46009.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-46009",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46009.json"
}
},
"related_cves": [
{
"value": "CVE-2026-46009",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 502205,
"published_at": "2026-05-27T12:56:09.581+00:00"
}