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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-74401 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: dlm: fix add msg handle in send_queue ordered In a benchmark scenario triggering a lot of requests that triggers a lot of DLM messages on the network it can be that the mh->seq is not ordered according the oldest seq number. This ordering is required by dlm_receive_ack as "before(mh->seq, seq)" will stop to check for older sequence numbers that are ordered in the tail of "node->send_queue". The side effects of not having it correct ordered regarding "before(mh->seq, seq)" are refcounting issues and use-after free. I only was able to reproduce this issue in a experimental DLM branch and a user space DLM benchmark that uses io_uring. After changing this I don't experienced any refcounting with the sending buffer issues anymore.


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/4d45250b1d22960f86d83245be188b16e456218b kernel.org
https://git.kernel.org/stable/c/6369619f1b665f12d8c99cc6ff733c64eb08b22e kernel.org
https://git.kernel.org/stable/c/712714f818d83373847874ab0f8e426be79296cf kernel.org
https://git.kernel.org/stable/c/ae9e534e502a0f48c12baf83608c5de0ff0eab11 kernel.org
https://git.kernel.org/stable/c/d2248cb70c070f8f04762872772e155b59016f17 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-74401
NVD Published Date:
08/15/2026
NVD Last Modified:
08/15/2026
Source:
kernel.org