CVE-2025-38134 (GCVE-0-2025-38134)
Vulnerability from cvelistv5
Published
2025-07-03 08:35
Modified
2025-07-28 04:13
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
usb: acpi: Prevent null pointer dereference in usb_acpi_add_usb4_devlink()
As demonstrated by the fix for update_port_device_state,
commit 12783c0b9e2c ("usb: core: Prevent null pointer dereference in update_port_device_state"),
usb_hub_to_struct_hub() can return NULL in certain scenarios,
such as during hub driver unbind or teardown race conditions,
even if the underlying usb_device structure exists.
Plus, all other places that call usb_hub_to_struct_hub() in the same file
do check for NULL return values.
If usb_hub_to_struct_hub() returns NULL, the subsequent access to
hub->ports[udev->portnum - 1] will cause a null pointer dereference.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/usb/core/usb-acpi.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "8fa544bff8466062e42949c93f3e528f4be5624b",
"status": "affected",
"version": "f1bfb4a6fed64de1771b43a76631942279851744",
"versionType": "git"
},
{
"lessThan": "e3d530173b70514d4390a94f9f979acad689b70a",
"status": "affected",
"version": "f1bfb4a6fed64de1771b43a76631942279851744",
"versionType": "git"
},
{
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"status": "affected",
"version": "f1bfb4a6fed64de1771b43a76631942279851744",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/usb/core/usb-acpi.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.12"
},
{
"lessThan": "6.12",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.34",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.34",
"versionStartIncluding": "6.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.3",
"versionStartIncluding": "6.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"versionStartIncluding": "6.12",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: acpi: Prevent null pointer dereference in usb_acpi_add_usb4_devlink()\n\nAs demonstrated by the fix for update_port_device_state,\ncommit 12783c0b9e2c (\"usb: core: Prevent null pointer dereference in update_port_device_state\"),\nusb_hub_to_struct_hub() can return NULL in certain scenarios,\nsuch as during hub driver unbind or teardown race conditions,\neven if the underlying usb_device structure exists.\n\nPlus, all other places that call usb_hub_to_struct_hub() in the same file\ndo check for NULL return values.\n\nIf usb_hub_to_struct_hub() returns NULL, the subsequent access to\nhub-\u003eports[udev-\u003eportnum - 1] will cause a null pointer dereference."
}
],
"providerMetadata": {
"dateUpdated": "2025-07-28T04:13:10.210Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/8fa544bff8466062e42949c93f3e528f4be5624b"
},
{
"url": "https://git.kernel.org/stable/c/e3d530173b70514d4390a94f9f979acad689b70a"
},
{
"url": "https://git.kernel.org/stable/c/73fb0ec9436ae87bcae067ce35d6cdd72bade86c"
}
],
"title": "usb: acpi: Prevent null pointer dereference in usb_acpi_add_usb4_devlink()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38134",
"datePublished": "2025-07-03T08:35:37.674Z",
"dateReserved": "2025-04-16T04:51:23.987Z",
"dateUpdated": "2025-07-28T04:13:10.210Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-38134\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-03T09:15:27.837\",\"lastModified\":\"2025-07-03T15:13:53.147\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nusb: acpi: Prevent null pointer dereference in usb_acpi_add_usb4_devlink()\\n\\nAs demonstrated by the fix for update_port_device_state,\\ncommit 12783c0b9e2c (\\\"usb: core: Prevent null pointer dereference in update_port_device_state\\\"),\\nusb_hub_to_struct_hub() can return NULL in certain scenarios,\\nsuch as during hub driver unbind or teardown race conditions,\\neven if the underlying usb_device structure exists.\\n\\nPlus, all other places that call usb_hub_to_struct_hub() in the same file\\ndo check for NULL return values.\\n\\nIf usb_hub_to_struct_hub() returns NULL, the subsequent access to\\nhub-\u003eports[udev-\u003eportnum - 1] will cause a null pointer dereference.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: acpi: Evitar la desreferencia de puntero nulo en usb_acpi_add_usb4_devlink(). Como se demuestra en la correcci\u00f3n para update_port_device_state, commit 12783c0b9e2c (\\\"usb: core: Evitar la desreferencia de puntero nulo en update_port_device_state\\\"), usb_hub_to_struct_hub() puede devolver NULL en ciertos escenarios, como durante la desvinculaci\u00f3n del controlador del concentrador o en condiciones de ejecuciones de desmontaje, incluso si la estructura usb_device subyacente existe. Adem\u00e1s, todos los dem\u00e1s lugares que llaman a usb_hub_to_struct_hub() en el mismo archivo comprueban si hay valores de retorno NULL. Si usb_hub_to_struct_hub() devuelve NULL, el acceso posterior a hub-\u0026gt;ports[udev-\u0026gt;portnum - 1] provocar\u00e1 una desreferencia de puntero nulo.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/73fb0ec9436ae87bcae067ce35d6cdd72bade86c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8fa544bff8466062e42949c93f3e528f4be5624b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e3d530173b70514d4390a94f9f979acad689b70a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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