CVE-2025-38069

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{}

{"affected": [{"affectedData": [{"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": "e2e43854ab72a9d4908ac2bf6087f80aa138a8b5", "status": "affected", "version": "349e7a85b25fa6ee82902d9be2cc5f3bec815120", "versionType": "git"}, {"lessThan": "761db4ca3a469f2070757acd4e104dff5125ca99", "status": "affected", "version": "349e7a85b25fa6ee82902d9be2cc5f3bec815120", "versionType": "git"}, {"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": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "762BCFB6-5DF9-4665-8651-F8936F5D8FB1", "versionEndExcluding": "6.12.31", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A9B72DD1-715C-4101-A720-1C8D70044C06", "versionEndExcluding": "6.14.9", "versionStartIncluding": "6.13", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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() ->\n pci_epf_free_space()\n\ndoes not clear the previous assignment to epf_test->reg[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->reg[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->reg[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() -> pci_epf_free_space() no borra la asignaci\u00f3n previa a epf_test->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->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->reg[bar] en NULL cuando se libere memoria. [kwilczynski: registro de confirmaciones]"}], "id": "CVE-2025-38069", "lastModified": "2026-10-30T13:18:00.617", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-06-18T10:15:40.090", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/761db4ca3a469f2070757acd4e104dff5125ca99"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "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", "url": "https://git.kernel.org/stable/c/e2e43854ab72a9d4908ac2bf6087f80aa138a8b5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fe2329eff5bee461ebcafadb6ca1df0cbf5945fd"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: PCI: endpoint: pci-epf-test: Fix double free that causes kernel to oops", "id": "2373370", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373370"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nPCI: endpoint: pci-epf-test: Fix double free that causes kernel to oops\nFix a kernel oops found while testing the stm32_pcie Endpoint driver\nwith handling of PERST# deassertion:\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).\nHowever, when pci_epc_set_bar() fails, the error path:\npci_epc_set_bar() ->\npci_epf_free_space()\ndoes not clear the previous assignment to epf_test->reg[bar].\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->reg[bar] was\ndeallocated and is still non-NULL.\nThus, make sure that pci_epf_alloc_space() and pci_epf_free_space()\ninvocations are symmetric, and as such, set epf_test->reg[bar] to NULL\nwhen memory is freed.\n[kwilczynski: commit log]"], "name": "CVE-2025-38069", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38069\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38069\nhttps://lore.kernel.org/linux-cve-announce/2025061838-CVE-2025-38069-b1a0@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-06-23T09:16:29.549305+00:00", "updated": "2025-06-23T09:16:29.549352+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}