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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-23298 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/13b646eec3ba1131180803f5aaf1fee23540ad8f kernel.org Patch 
https://git.kernel.org/stable/c/1e446fd0582ad8be9f6dafb115fc2e7245f9bea7 kernel.org Patch 
https://git.kernel.org/stable/c/aa9e0a7fe5efc2f74327fd37d828e9a51d9ff588 kernel.org Patch 
https://git.kernel.org/stable/c/ab6f075492d37368b4c7b0df7f7fdc2b666887fc kernel.org Patch 
https://git.kernel.org/stable/c/bd85f21a6219aeae4389d700c54f1799f4b814e0 kernel.org Patch 
https://git.kernel.org/stable/c/c7bc62be6c1a60bb21301692009590b1ffda91d9 kernel.org Patch 
https://git.kernel.org/stable/c/ca07d3c6eef14d34e6fdeefe55058db045be29dc kernel.org Patch 
https://git.kernel.org/stable/c/e7bb6e0606b5f233531aaaad9542d69fbb792115 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop') cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-23298
NVD Published Date:
03/25/2026
NVD Last Modified:
05/29/2026
Source:
kernel.org