Medium 5.5Published May 28, 2026

CVE-2026-46184sound: ua101: fix division by zero at probe

Updated under an hour ago (Oct 28, 2026, 12:23 AM ET)

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: sound: ua101: fix division by zero at probe Add a missing sanity check for bNrChannels in detect_usb_format() to prevent a division by zero in playback_urb_complete() and capture_urb_complete(). USB core does not validate class-specific descriptor fields such as bNrChannels, so drivers must verify them before use. If a device provides bNrChannels = 0, frame_bytes becomes zero and is later used as a divisor in the URB completion handlers, leading to a kernel crash.

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: Analyzed
Record last updated: Jun 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 63978ab3e3e963db28093b53bb4598f2702e1ad7 before e02897c5b041c9b980055fa9a6167023d6dc5caf; from 63978ab3e3e963db28093b53bb4598f2702e1ad7 before aae1498c59f48d03ee358df84f07a5af9885f827; 63978ab3e3e963db28093b53bb4598f2702e1ad7 builds before 66d9c2ed081f299cfb201d9e9c4faf920e56e0bf; 63978ab3e3e963db28093b53bb4598f2702e1ad7 builds before 6162e8212e88c39492d981b248b5e37002486c66; 63978ab3e3e963db28093b53bb4598f2702e1ad7 builds before 593dd7e6c890d8e4ca21b3e2f796b7cb8e8da983; 63978ab3e3e963db28093b53bb4598f2702e1ad7 builds before 0ff2b713f406e9ecadb406014d74e7a020ac12b1; from 63978ab3e3e963db28093b53bb4598f2702e1ad7 before f1862dbf09080254c52175a448290c784dd7d3de; from 63978ab3e3e963db28093b53bb4598f2702e1ad7 before d1f73f169c1014463b5060e3f60813e13ddc7b87	CNA record
linux linux_kernel linux:linux_kernel	from 2.6.34 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.88; from 6.13 before 6.18.30; from 6.19 before 7.0.7; 7.1	NVD

References

References

https://git.kernel.org/stable/c/e02897c5b041c9b980055fa9a6167023d6dc5caf	patch
https://git.kernel.org/stable/c/aae1498c59f48d03ee358df84f07a5af9885f827	patch
https://git.kernel.org/stable/c/66d9c2ed081f299cfb201d9e9c4faf920e56e0bf	patch
https://git.kernel.org/stable/c/6162e8212e88c39492d981b248b5e37002486c66	patch
https://git.kernel.org/stable/c/593dd7e6c890d8e4ca21b3e2f796b7cb8e8da983	patch
https://git.kernel.org/stable/c/0ff2b713f406e9ecadb406014d74e7a020ac12b1	patch
https://git.kernel.org/stable/c/f1862dbf09080254c52175a448290c784dd7d3de	patch
https://git.kernel.org/stable/c/d1f73f169c1014463b5060e3f60813e13ddc7b87	patch

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.