CVE-2025-40051
vhost: vringh: Modify the return value check
Description
In the Linux kernel, the following vulnerability has been resolved: vhost: vringh: Modify the return value check The return value of copy_from_iter and copy_to_iter can't be negative, check whether the copied lengths are equal.
INFO
Published Date :
Oct. 28, 2025, 12:15 p.m.
Last Modified :
July 30, 2026, 6:24 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Modify the return value check for copy_from_iter.
- Modify the return value check for copy_to_iter.
- Check if copied lengths are equal.
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-2025-40051.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-40051 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-2025-40051
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-40051 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-40051 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. 30, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '309bba39c945ac8ab8083ac05cd6cfe5822968e0', 'lessThan': 'db042925a5ab7a550b710addeadbf6f72e3a8a4b', 'versionType': 'git'}, {'status': 'affected', 'version': '309bba39c945ac8ab8083ac05cd6cfe5822968e0', 'lessThan': '78dc7362662fedaa1928fb8e4f27401c8322905d', 'versionType': 'git'}, {'status': 'affected', 'version': '309bba39c945ac8ab8083ac05cd6cfe5822968e0', 'lessThan': 'baa37b1c7e29546f79c39bef0d18c4edc9f39bb1', 'versionType': 'git'}, {'status': 'affected', 'version': '309bba39c945ac8ab8083ac05cd6cfe5822968e0', 'lessThan': 'cfa0654402c06d086201a9ff167eb95da5844fc3', 'versionType': 'git'}, {'status': 'affected', 'version': '309bba39c945ac8ab8083ac05cd6cfe5822968e0', 'lessThan': '82a8d0fda55b35361ee7f35b54fa2b66d7847d2b', 'versionType': 'git'}], 'programFiles': ['drivers/vhost/vringh.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.1.156', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.112', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.53', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.17.3', 'versionType': 'semver', 'lessThanOrEqual': '6.17.*'}, {'status': 'unaffected', 'version': '6.18', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/vhost/vringh.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Oct. 28, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: vhost: vringh: Modify the return value check The return value of copy_from_iter and copy_to_iter can't be negative, check whether the copied lengths are equal. Added Reference https://git.kernel.org/stable/c/78dc7362662fedaa1928fb8e4f27401c8322905d Added Reference https://git.kernel.org/stable/c/82a8d0fda55b35361ee7f35b54fa2b66d7847d2b Added Reference https://git.kernel.org/stable/c/baa37b1c7e29546f79c39bef0d18c4edc9f39bb1 Added Reference https://git.kernel.org/stable/c/cfa0654402c06d086201a9ff167eb95da5844fc3 Added Reference https://git.kernel.org/stable/c/db042925a5ab7a550b710addeadbf6f72e3a8a4b