CVE-2026-46184
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.
Affected versions
Linux kernel versions
2.6.34
and later are affected. Fixed in
5.10.258,
5.15.209,
6.1.175,
6.6.140,
6.12.88,
6.18.30,
7.0.7,
7.1-rc2
and their respective stable series.
References
The following references provide additional information about CVE-2026-46184 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
-
PatchKernel patch commithttps://git.kernel.org/stable/c/0ff2b713f406e9ecadb406014d74e7a020ac12b1
-
PatchKernel patch commithttps://git.kernel.org/stable/c/593dd7e6c890d8e4ca21b3e2f796b7cb8e8da983
-
PatchKernel patch commithttps://git.kernel.org/stable/c/6162e8212e88c39492d981b248b5e37002486c66
Frequently asked questions
-
What is CVE-2026-46184?
CVE-2026-46184 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.34 onward and has been patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-46184 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
Is there a patch available for CVE-2026-46184?
Yes — CVE-2026-46184 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 2.6.34 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2026-46184 actively exploited?
No — CVE-2026-46184 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.