CVE-2026-46184
sound: ua101: fix division by zero at probe
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.34
References 8
git.kernel.org
- stable/c/e02897c5b041c9b980055fa9a6167023d6dc5caf
- stable/c/aae1498c59f48d03ee358df84f07a5af9885f827
- stable/c/66d9c2ed081f299cfb201d9e9c4faf920e56e0bf
- stable/c/6162e8212e88c39492d981b248b5e37002486c66
- stable/c/593dd7e6c890d8e4ca21b3e2f796b7cb8e8da983
- stable/c/0ff2b713f406e9ecadb406014d74e7a020ac12b1
- stable/c/f1862dbf09080254c52175a448290c784dd7d3de
- stable/c/d1f73f169c1014463b5060e3f60813e13ddc7b87