0.0
NA
CVE-2025-38074
QEMU vhost-scsi Invalid Memory Use Vulnerability
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.

INFO

Published Date :

June 18, 2025, 10:15 a.m.

Last Modified :

July 17, 2025, 5:15 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2025-38074 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Public PoC/Exploit Available at Github

CVE-2025-38074 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-38074.

URL Resource
https://git.kernel.org/stable/c/59614c5acf6688f7af3c245d359082c0e9e53117
https://git.kernel.org/stable/c/80cf68489681c165ded460930e391b1eb37b5f6f
https://git.kernel.org/stable/c/8312a1ccff1566f375191a89b9ba71b6eb48a8cd
https://git.kernel.org/stable/c/bd8c9404e44adb9f6219c09b3409a61ab7ce3427
https://git.kernel.org/stable/c/c0039e3afda29be469d29b3013d7f9bdee136834
https://git.kernel.org/stable/c/ca85c2d0db5f8309832be45858b960d933c2131c
https://git.kernel.org/stable/c/f591cf9fce724e5075cc67488c43c6e39e8cbe27
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-38074 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-38074 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
w4zu/Debian_security

DSA and DLA for Debian last 14 days

Python

Updated: 5 hours, 50 minutes ago
0 stars 0 fork 0 watcher
Born at : Feb. 12, 2025, 2:08 p.m. This repo has been linked 393 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-38074 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-38074 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 17, 2025

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/59614c5acf6688f7af3c245d359082c0e9e53117
    Added Reference https://git.kernel.org/stable/c/80cf68489681c165ded460930e391b1eb37b5f6f
    Added Reference https://git.kernel.org/stable/c/8312a1ccff1566f375191a89b9ba71b6eb48a8cd
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 18, 2025

    Action Type Old Value New Value
    Added 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.
    Added Reference https://git.kernel.org/stable/c/bd8c9404e44adb9f6219c09b3409a61ab7ce3427
    Added Reference https://git.kernel.org/stable/c/c0039e3afda29be469d29b3013d7f9bdee136834
    Added Reference https://git.kernel.org/stable/c/ca85c2d0db5f8309832be45858b960d933c2131c
    Added Reference https://git.kernel.org/stable/c/f591cf9fce724e5075cc67488c43c6e39e8cbe27
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.