usb: gadget: f_midi: fix MIDI Streaming descriptor lengths
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.
CVE-2025-21835
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2025-21835
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "c8933c3f79568263c90a46f06cf80419e6c63c97",
"lessThan": "3a983390d14e8498f303fc5cb23ab7d696b815db",
"versionType": "git"
},
{
"status": "affected",
"version": "c8933c3f79568263c90a46f06cf80419e6c63c97",
"lessThan": "9f36a89dcb78cb7e37f487b04a16396ac18c0636",
"versionType": "git"
},
{
"status": "affected",
"version": "c8933c3f79568263c90a46f06cf80419e6c63c97",
"lessThan": "d8e86700c8a8cf415e300a0921acd6a8f9b494f8",
"versionType": "git"
},
{
"status": "affected",
"version": "c8933c3f79568263c90a46f06cf80419e6c63c97",
"lessThan": "9f6860a9c11301b052225ca8825f8d2b1a5825bf",
"versionType": "git"
},
{
"status": "affected",
"version": "c8933c3f79568263c90a46f06cf80419e6c63c97",
"lessThan": "6ae6dee9f005a2f3b739b85abb6f14a0935699e0",
"versionType": "git"
},
{
"status": "affected",
"version": "c8933c3f79568263c90a46f06cf80419e6c63c97",
"lessThan": "6b16761a928796e4b49e89a0b1ac284155172726",
"versionType": "git"
},
{
"status": "affected",
"version": "c8933c3f79568263c90a46f06cf80419e6c63c97",
"lessThan": "a2d0694e1f111379c1efdf439dadd3cfd959fe9d",
"versionType": "git"
},
{
"status": "affected",
"version": "c8933c3f79568263c90a46f06cf80419e6c63c97",
"lessThan": "da1668997052ed1cb00322e1f3b63702615c9429",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/gadget/function/f_midi.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.4.291",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.235",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.179",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.129",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.79",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.16",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.4",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/gadget/function/f_midi.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-21835
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26953 · Revision 1
- Added to Heist Feed
- Publisher date