CVE-2026-46184
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Weakness
- CWE-369
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.258
- Linux Kernel < 5.15.209
- Linux Kernel < 6.1.175
- Linux Kernel < 6.6.140
- Linux Kernel < 6.12.88
- Linux Kernel < 6.18.30
- Linux Kernel < 7.0.7
- Linux Kernel 7.1
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-46184.md and follow it. Check whether this project is affected by CVE-2026-46184. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0ff2b713f406e9ecadb406014d74e7a020ac12b1
- https://git.kernel.org/stable/c/593dd7e6c890d8e4ca21b3e2f796b7cb8e8da983
- https://git.kernel.org/stable/c/6162e8212e88c39492d981b248b5e37002486c66
- https://git.kernel.org/stable/c/66d9c2ed081f299cfb201d9e9c4faf920e56e0bf
- https://git.kernel.org/stable/c/aae1498c59f48d03ee358df84f07a5af9885f827
- https://git.kernel.org/stable/c/d1f73f169c1014463b5060e3f60813e13ddc7b87
- https://git.kernel.org/stable/c/e02897c5b041c9b980055fa9a6167023d6dc5caf
- https://git.kernel.org/stable/c/f1862dbf09080254c52175a448290c784dd7d3de
References
- https://git.kernel.org/stable/c/0ff2b713f406e9ecadb406014d74e7a020ac12b1
- https://git.kernel.org/stable/c/593dd7e6c890d8e4ca21b3e2f796b7cb8e8da983
- https://git.kernel.org/stable/c/6162e8212e88c39492d981b248b5e37002486c66
- https://git.kernel.org/stable/c/66d9c2ed081f299cfb201d9e9c4faf920e56e0bf
- https://git.kernel.org/stable/c/aae1498c59f48d03ee358df84f07a5af9885f827
- https://git.kernel.org/stable/c/d1f73f169c1014463b5060e3f60813e13ddc7b87
- https://git.kernel.org/stable/c/e02897c5b041c9b980055fa9a6167023d6dc5caf
- https://git.kernel.org/stable/c/f1862dbf09080254c52175a448290c784dd7d3de