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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-38074 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: protect vq->log_used with vq->mutex The vhost-scsi completion path may access vq->log_base when vq->log_used is already set to false. vhost-thread QEMU-thread vhost_scsi_complete_cmd_work() -> vhost_add_used() -> vhost_add_used_n() if (unlikely(vq->log_used)) QEMU disables vq->log_used via VHOST_SET_VRING_ADDR. mutex_lock(&vq->mutex); vq->log_used = false now! mutex_unlock(&vq->mutex); QEMU gfree(vq->log_base) log_used() -> log_write(vq->log_base) Assuming the VMM is QEMU. The vq->log_base is from QEMU userpace and can be reclaimed via gfree(). As a result, this causes invalid memory writes to QEMU userspace. The control queue path has the same issue.


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/59614c5acf6688f7af3c245d359082c0e9e53117 kernel.org Patch 
https://git.kernel.org/stable/c/80cf68489681c165ded460930e391b1eb37b5f6f kernel.org Patch 
https://git.kernel.org/stable/c/8312a1ccff1566f375191a89b9ba71b6eb48a8cd kernel.org Patch 
https://git.kernel.org/stable/c/bd8c9404e44adb9f6219c09b3409a61ab7ce3427 kernel.org Patch 
https://git.kernel.org/stable/c/c0039e3afda29be469d29b3013d7f9bdee136834 kernel.org Patch 
https://git.kernel.org/stable/c/ca85c2d0db5f8309832be45858b960d933c2131c kernel.org Patch 
https://git.kernel.org/stable/c/f591cf9fce724e5075cc67488c43c6e39e8cbe27 kernel.org Patch 
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html CVE Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html CVE Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-38074
NVD Published Date:
06/18/2025
NVD Last Modified:
12/17/2025
Source:
kernel.org