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4.7
MEDIUM CVSS 3.1
CVE-2025-37906
ublk: fix race between io_uring_cmd_complete_in_task and ublk_cancel_cmd
Description

In the Linux kernel, the following vulnerability has been resolved: ublk: fix race between io_uring_cmd_complete_in_task and ublk_cancel_cmd ublk_cancel_cmd() calls io_uring_cmd_done() to complete uring_cmd, but we may have scheduled task work via io_uring_cmd_complete_in_task() for dispatching request, then kernel crash can be triggered. Fix it by not trying to canceling the command if ublk block request is started.

INFO

Published Date :

May 20, 2025, 4:15 p.m.

Last Modified :

Nov. 17, 2025, 6:10 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2025-37906 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
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
Solution
Address the race condition in the Linux kernel's ublk module by preventing cancellation of started requests.
  • Update the Linux kernel to a version that includes the ublk fix.
  • Ensure the ublk module is configured correctly.
  • Apply security patches for the Linux kernel.
Public PoC/Exploit Available at Github

CVE-2025-37906 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-2025-37906.

URL Resource
https://git.kernel.org/stable/c/f40139fde5278d81af3227444fd6e76a76b9506d Patch
https://git.kernel.org/stable/c/fb2eb9ddf556f93fef45201e1f9d2b8674bcc975 Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-37906 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-2025-37906 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
Jiyanson/intelligent-stock-market-monitoring-platform-backend

None

Dockerfile Shell Python Mako HTML

Updated: 1 month ago
0 stars 1 fork 1 watcher
Born at : Aug. 4, 2025, 10:35 a.m. This repo has been linked 13 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-2025-37906 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-37906 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.

  • Initial Analysis by [email protected]

    Nov. 17, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-362
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.14.6
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/f40139fde5278d81af3227444fd6e76a76b9506d Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/fb2eb9ddf556f93fef45201e1f9d2b8674bcc975 Types: Patch
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 20, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: ublk: fix race between io_uring_cmd_complete_in_task and ublk_cancel_cmd ublk_cancel_cmd() calls io_uring_cmd_done() to complete uring_cmd, but we may have scheduled task work via io_uring_cmd_complete_in_task() for dispatching request, then kernel crash can be triggered. Fix it by not trying to canceling the command if ublk block request is started.
    Added Reference https://git.kernel.org/stable/c/f40139fde5278d81af3227444fd6e76a76b9506d
    Added Reference https://git.kernel.org/stable/c/fb2eb9ddf556f93fef45201e1f9d2b8674bcc975
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
Base CVSS Score: 4.7
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact