CVE-2025-21835

Updated: 2025-11-10 02:20:58.664855

Description:

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.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0.0
CVSS Version 3.x MEDIUM 5.5

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

AlmaLinux 9.2 ESU kernel 5.14.0 5.5 MEDIUM Ignored 2025-11-05 04:54:47 This issue is limited to the USB gadget MIDI function (f_midi) and only triggers when a system is ex...
CentOS 7 ELS kernel 3.10.0 5.5 MEDIUM Ignored 2025-11-05 04:54:46
CentOS 8.4 ELS kernel 4.18.0 5.5 MEDIUM Ignored 2025-11-05 04:54:48
CentOS 8.5 ELS kernel 4.18.0 5.5 MEDIUM Ignored 2025-11-05 04:54:48
CentOS Stream 8 ELS kernel 4.18.0 5.5 MEDIUM Ignored 2025-11-05 04:54:46
CloudLinux 7 ELS kernel 3.10.0 5.5 MEDIUM Ignored 2025-11-05 04:54:45
Oracle Linux 7 ELS kernel 3.10.0 5.5 MEDIUM Ignored 2025-11-05 04:54:45
Oracle Linux 7 ELS kernel-uek 5.4.17 5.5 MEDIUM Released CLSA-2025:1746479711 2025-05-08 04:11:25
RHEL 7 ELS kernel 3.10.0 5.5 MEDIUM Ignored 2025-11-05 04:54:44
TuxCare 9.6 ESU kernel 5.14.0 5.5 MEDIUM Ignored 2025-11-05 04:54:47 This issue only triggers when Linux is explicitly configured to operate in USB gadget/peripheral mod...
Total: 14