CVE-2025-21835usb: gadget: f_midi: fix MIDI Streaming descriptor lengths
Updated under an hour ago ()
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It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from c8933c3f79568263c90a46f06cf80419e6c63c97 before 3a983390d14e8498f303fc5cb23ab7d696b815db; from c8933c3f79568263c90a46f06cf80419e6c63c97 before 9f36a89dcb78cb7e37f487b04a16396ac18c0636; from c8933c3f79568263c90a46f06cf80419e6c63c97 before d8e86700c8a8cf415e300a0921acd6a8f9b494f8; from c8933c3f79568263c90a46f06cf80419e6c63c97 before 9f6860a9c11301b052225ca8825f8d2b1a5825bf; from c8933c3f79568263c90a46f06cf80419e6c63c97 before 6ae6dee9f005a2f3b739b85abb6f14a0935699e0; from c8933c3f79568263c90a46f06cf80419e6c63c97 before 6b16761a928796e4b49e89a0b1ac284155172726; from c8933c3f79568263c90a46f06cf80419e6c63c97 before a2d0694e1f111379c1efdf439dadd3cfd959fe9d; from c8933c3f79568263c90a46f06cf80419e6c63c97 before da1668997052ed1cb00322e1f3b63702615c9429 | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
linux linux_kernel linux:linux_kernel | from 3.2 before 5.4.291; from 5.5 before 5.10.235; from 5.11 before 5.15.179; from 5.16 before 6.1.129; from 6.2 before 6.6.79; from 6.7 before 6.12.16; from 6.13 before 6.13.4; 6.14; and 1 more ranges | NVD |
References
- https://git.kernel.org/stable/c/3a983390d14e8498f303fc5cb23ab7d696b815dbpatch
- https://git.kernel.org/stable/c/9f36a89dcb78cb7e37f487b04a16396ac18c0636patch
- https://git.kernel.org/stable/c/d8e86700c8a8cf415e300a0921acd6a8f9b494f8patch
- https://git.kernel.org/stable/c/9f6860a9c11301b052225ca8825f8d2b1a5825bfpatch
- https://git.kernel.org/stable/c/6ae6dee9f005a2f3b739b85abb6f14a0935699e0patch
- https://git.kernel.org/stable/c/6b16761a928796e4b49e89a0b1ac284155172726patch
- https://git.kernel.org/stable/c/a2d0694e1f111379c1efdf439dadd3cfd959fe9dpatch
- https://git.kernel.org/stable/c/da1668997052ed1cb00322e1f3b63702615c9429patch
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.