CVE-2025-38069 (GCVE-0-2025-38069)
Vulnerability from cvelistv5 – Published: 2025-06-18 09:33 – Updated: 2026-05-11 21:20
VLAI
EPSS
VEX
Title
PCI: endpoint: pci-epf-test: Fix double free that causes kernel to oops
Summary
In the Linux kernel, the following vulnerability has been resolved:
PCI: endpoint: pci-epf-test: Fix double free that causes kernel to oops
Fix a kernel oops found while testing the stm32_pcie Endpoint driver
with handling of PERST# deassertion:
During EP initialization, pci_epf_test_alloc_space() allocates all BARs,
which are further freed if epc_set_bar() fails (for instance, due to no
free inbound window).
However, when pci_epc_set_bar() fails, the error path:
pci_epc_set_bar() ->
pci_epf_free_space()
does not clear the previous assignment to epf_test->reg[bar].
Then, if the host reboots, the PERST# deassertion restarts the BAR
allocation sequence with the same allocation failure (no free inbound
window), creating a double free situation since epf_test->reg[bar] was
deallocated and is still non-NULL.
Thus, make sure that pci_epf_alloc_space() and pci_epf_free_space()
invocations are symmetric, and as such, set epf_test->reg[bar] to NULL
when memory is freed.
[kwilczynski: commit log]
Severity
7.8 (High)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
349e7a85b25fa6ee82902d9be2cc5f3bec815120 , < fe2329eff5bee461ebcafadb6ca1df0cbf5945fd
(git)
Affected: 349e7a85b25fa6ee82902d9be2cc5f3bec815120 , < 8b83893d1f6c6061a7d58169ecdf9d5ee9f306ee (git) Affected: 349e7a85b25fa6ee82902d9be2cc5f3bec815120 , < 934e9d137d937706004c325fa1474f9e3f1ba10a (git) |
guessed | |
| Linux | Linux |
Affected:
4.12
Unaffected: 0 , < 4.12 (semver) Unaffected: 6.12.31 , ≤ 6.12.* (semver) Unaffected: 6.14.9 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/pci/endpoint/functions/pci-epf-test.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "fe2329eff5bee461ebcafadb6ca1df0cbf5945fd",
"status": "affected",
"version": "349e7a85b25fa6ee82902d9be2cc5f3bec815120",
"versionType": "git"
},
{
"lessThan": "8b83893d1f6c6061a7d58169ecdf9d5ee9f306ee",
"status": "affected",
"version": "349e7a85b25fa6ee82902d9be2cc5f3bec815120",
"versionType": "git"
},
{
"lessThan": "934e9d137d937706004c325fa1474f9e3f1ba10a",
"status": "affected",
"version": "349e7a85b25fa6ee82902d9be2cc5f3bec815120",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/pci/endpoint/functions/pci-epf-test.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.12"
},
{
"lessThan": "4.12",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.31",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.14.*",
"status": "unaffected",
"version": "6.14.9",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.31",
"versionStartIncluding": "4.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.14.9",
"versionStartIncluding": "4.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15",
"versionStartIncluding": "4.12",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-test: Fix double free that causes kernel to oops\n\nFix a kernel oops found while testing the stm32_pcie Endpoint driver\nwith handling of PERST# deassertion:\n\nDuring EP initialization, pci_epf_test_alloc_space() allocates all BARs,\nwhich are further freed if epc_set_bar() fails (for instance, due to no\nfree inbound window).\n\nHowever, when pci_epc_set_bar() fails, the error path:\n\n pci_epc_set_bar() -\u003e\n pci_epf_free_space()\n\ndoes not clear the previous assignment to epf_test-\u003ereg[bar].\n\nThen, if the host reboots, the PERST# deassertion restarts the BAR\nallocation sequence with the same allocation failure (no free inbound\nwindow), creating a double free situation since epf_test-\u003ereg[bar] was\ndeallocated and is still non-NULL.\n\nThus, make sure that pci_epf_alloc_space() and pci_epf_free_space()\ninvocations are symmetric, and as such, set epf_test-\u003ereg[bar] to NULL\nwhen memory is freed.\n\n[kwilczynski: commit log]"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:20:40.239Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/fe2329eff5bee461ebcafadb6ca1df0cbf5945fd"
},
{
"url": "https://git.kernel.org/stable/c/8b83893d1f6c6061a7d58169ecdf9d5ee9f306ee"
},
{
"url": "https://git.kernel.org/stable/c/934e9d137d937706004c325fa1474f9e3f1ba10a"
}
],
"title": "PCI: endpoint: pci-epf-test: Fix double free that causes kernel to oops",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38069",
"datePublished": "2025-06-18T09:33:46.711Z",
"dateReserved": "2025-04-16T04:51:23.980Z",
"dateUpdated": "2026-05-11T21:20:40.239Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-38069",
"date": "2026-09-17",
"epss": "0.00171",
"percentile": "0.06781"
},
"microsoft_vex": {
"current_release_date": "2025-11-25T01:37:12.000Z",
"cve": "CVE-2025-38069",
"id": "msrc_CVE-2025-38069",
"initial_release_date": "2025-06-02T00:00:00.000Z",
"product_status:known_not_affected": "2",
"product_status:under_investigation": "2",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "PCI: endpoint: pci-epf-test: Fix double free that causes kernel to oops",
"url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-38069.json",
"version": "2"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2025-38069\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T10:15:40.090\",\"lastModified\":\"2026-06-17T09:15:59.613\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nPCI: endpoint: pci-epf-test: Fix double free that causes kernel to oops\\n\\nFix a kernel oops found while testing the stm32_pcie Endpoint driver\\nwith handling of PERST# deassertion:\\n\\nDuring EP initialization, pci_epf_test_alloc_space() allocates all BARs,\\nwhich are further freed if epc_set_bar() fails (for instance, due to no\\nfree inbound window).\\n\\nHowever, when pci_epc_set_bar() fails, the error path:\\n\\n pci_epc_set_bar() -\u003e\\n pci_epf_free_space()\\n\\ndoes not clear the previous assignment to epf_test-\u003ereg[bar].\\n\\nThen, if the host reboots, the PERST# deassertion restarts the BAR\\nallocation sequence with the same allocation failure (no free inbound\\nwindow), creating a double free situation since epf_test-\u003ereg[bar] was\\ndeallocated and is still non-NULL.\\n\\nThus, make sure that pci_epf_alloc_space() and pci_epf_free_space()\\ninvocations are symmetric, and as such, set epf_test-\u003ereg[bar] to NULL\\nwhen memory is freed.\\n\\n[kwilczynski: commit log]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI: endpoint: pci-epf-test: Se corrige la doble liberaci\u00f3n que provoca un error en el kernel. Se corrige un error en el kernel detectado al probar el controlador de endpoint stm32_pcie con el manejo de la deaserci\u00f3n PERST#: Durante la inicializaci\u00f3n de EP, pci_epf_test_alloc_space() asigna todos los BAR, que se liberan a\u00fan m\u00e1s si epc_set_bar() falla (por ejemplo, debido a que no hay una ventana de entrada libre). Sin embargo, cuando pci_epc_set_bar() falla, la ruta de error: pci_epc_set_bar() -\u0026gt; pci_epf_free_space() no borra la asignaci\u00f3n previa a epf_test-\u0026gt;reg[bar]. Luego, si el host se reinicia, la desasignaci\u00f3n PERST# reinicia la secuencia de asignaci\u00f3n de BAR con el mismo fallo de asignaci\u00f3n (sin ventana de entrada libre), lo que crea una situaci\u00f3n de doble liberaci\u00f3n, ya que epf_test-\u0026gt;reg[bar] se desasign\u00f3 y sigue siendo distinto de NULL. Por lo tanto, aseg\u00farese de que las invocaciones de pci_epf_alloc_space() y pci_epf_free_space() sean sim\u00e9tricas y, por lo tanto, establezca epf_test-\u0026gt;reg[bar] en NULL cuando se libere memoria. [kwilczynski: registro de confirmaciones]\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/pci/endpoint/functions/pci-epf-test.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"349e7a85b25fa6ee82902d9be2cc5f3bec815120\",\"lessThan\":\"fe2329eff5bee461ebcafadb6ca1df0cbf5945fd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"349e7a85b25fa6ee82902d9be2cc5f3bec815120\",\"lessThan\":\"8b83893d1f6c6061a7d58169ecdf9d5ee9f306ee\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"349e7a85b25fa6ee82902d9be2cc5f3bec815120\",\"lessThan\":\"934e9d137d937706004c325fa1474f9e3f1ba10a\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/pci/endpoint/functions/pci-epf-test.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.31\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.14.9\",\"lessThanOrEqual\":\"6.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.15\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-415\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.12.31\",\"matchCriteriaId\":\"762BCFB6-5DF9-4665-8651-F8936F5D8FB1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.14.9\",\"matchCriteriaId\":\"A9B72DD1-715C-4101-A720-1C8D70044C06\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/8b83893d1f6c6061a7d58169ecdf9d5ee9f306ee\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/934e9d137d937706004c325fa1474f9e3f1ba10a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fe2329eff5bee461ebcafadb6ca1df0cbf5945fd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-30T10:17:50+00:00",
"cve": "CVE-2025-38069",
"id": "CVE-2025-38069",
"initial_release_date": "2025-06-18T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: PCI: endpoint: pci-epf-test: Fix double free that causes kernel to oops",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38069.json",
"version": "3"
}
}
}
Loading…
Loading…
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.
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.
Loading…