ghsa-2x4w-2j26-p5hx
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: f_midi: fix MIDI Streaming descriptor lengths
While the MIDI jacks are configured correctly, and the MIDIStreaming endpoint descriptors are filled with the correct information, bNumEmbMIDIJack and bLength are set incorrectly in these descriptors.
This does not matter when the numbers of in and out ports are equal, but when they differ the host will receive broken descriptors with uninitialized stack memory leaking into the descriptor for whichever value is smaller.
The precise meaning of "in" and "out" in the port counts is not clearly defined and can be confusing. But elsewhere the driver consistently uses this to match the USB meaning of IN and OUT viewed from the host, so that "in" ports send data to the host and "out" ports receive data from it.
{
"affected": [],
"aliases": [
"CVE-2025-21835"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-07T09:15:16Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_midi: fix MIDI Streaming descriptor lengths\n\nWhile the MIDI jacks are configured correctly, and the MIDIStreaming\nendpoint descriptors are filled with the correct information,\nbNumEmbMIDIJack and bLength are set incorrectly in these descriptors.\n\nThis does not matter when the numbers of in and out ports are equal, but\nwhen they differ the host will receive broken descriptors with\nuninitialized stack memory leaking into the descriptor for whichever\nvalue is smaller.\n\nThe precise meaning of \"in\" and \"out\" in the port counts is not clearly\ndefined and can be confusing. But elsewhere the driver consistently\nuses this to match the USB meaning of IN and OUT viewed from the host,\nso that \"in\" ports send data to the host and \"out\" ports receive data\nfrom it.",
"id": "GHSA-2x4w-2j26-p5hx",
"modified": "2025-03-13T15:32:55Z",
"published": "2025-03-07T09:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21835"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3a983390d14e8498f303fc5cb23ab7d696b815db"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6ae6dee9f005a2f3b739b85abb6f14a0935699e0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6b16761a928796e4b49e89a0b1ac284155172726"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9f36a89dcb78cb7e37f487b04a16396ac18c0636"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9f6860a9c11301b052225ca8825f8d2b1a5825bf"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a2d0694e1f111379c1efdf439dadd3cfd959fe9d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d8e86700c8a8cf415e300a0921acd6a8f9b494f8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/da1668997052ed1cb00322e1f3b63702615c9429"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.