8.8

CVE-2025-38074: debian debian_linux

CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2025-38074DEBIAN-CVE-2025-38074
Published 18-06-2025Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2025-38074 is a high (CVSS 8.8) vulnerability in debian debian_linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 8.8% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.20%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 47 · Related 44
DLA-4327-1DLA-4328-1DSA-5973-1SUSE-SU-2025:02846-1SUSE-SU-2025:02853-1SUSE-SU-2025:02923-1

Timeline

  1. 18-06-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

0.00 pp

From 0.20% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.20%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu145 products
  • linuxAll versions (No fix recorded) | < 5.15.0-156.166 | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1092.99 | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • linux≥ 057cbf49a1f08297877e46c82f707b1bfea806a8, < 80cf68489681c165ded460930e391b1eb37b5f6f | ≥ 057cbf49a1f08297877e46c82f707b1bfea806a8, < 8312a1ccff1566f375191a89b9ba71b6eb48a8cd | ≥ 057cbf49a1f08297877e46c82f707b1bfea806a8, < 59614c5acf6688f7af3c245d359082c0e9e53117 | ≥ 057cbf49a1f08297877e46c82f707b1bfea806a8, < ca85c2d0db5f8309832be45858b960d933c2131c | ≥ 057cbf49a1f08297877e46c82f707b1bfea806a8, < bd8c9404e44adb9f6219c09b3409a61ab7ce3427 | ≥ 057cbf49a1f08297877e46c82f707b1bfea806a8, < c0039e3afda29be469d29b3013d7f9bdee136834 | ≥ 057cbf49a1f08297877e46c82f707b1bfea806a8, < f591cf9fce724e5075cc67488c43c6e39e8cbe27 | 3.6
  • linux_kernel< 5.10.240 | ≥ 5.11, < 5.15.189 | ≥ 5.16, < 6.1.146 | ≥ 6.2, < 6.6.93 | ≥ 6.7, < 6.12.31 | ≥ 6.13, < 6.14.9 | 6.15:rc1 | 6.15:rc2 | 6.15:rc3

3 vendors · 149 products

References

45 links
Show all 45 references