Cloudanix VulnDB

CVE-2026-23298

Medium · 5.5

CVSS

5.5

EPSS

0.1%

Published

Mar 25, 2026

CISA due date

—

The record

In the Linux kernel, the following vulnerability has been resolved: can: ucan: Fix infinite loop from zero-length messages If a broken ucan device gets a message with the message length field set to 0, then the driver will loop for forever in ucan_read_bulk_callback(), hanging the system. If the length is 0, just skip the message and go on to the next one. This has been fixed in the kvaser_usb driver in the past in commit 0c73772cd2b8 ("can: kvaser_usb: leaf: Fix potential infinite loop in command parsers"), so there must be some broken devices out there like this somewhere.

Affected packages

Ecosystem Package Introduced Fixed

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