VDB-338187 · CVE-2025-68357 · EUVD-2025-205097

Linux Kernel up to 6.18.1 iomap s_dio_done_wq allocation of resources

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5.3	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.18.1 and classified as critical. This vulnerability affects the function s_dio_done_wq of the component iomap. Performing a manipulation results in allocation of resources. This vulnerability is reported as CVE-2025-68357. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.18.1. This affects the function s_dio_done_wq of the component iomap. The manipulation with an unknown input leads to a allocation of resources vulnerability. CWE is classifying the issue as CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: iomap: allocate s_dio_done_wq for async reads as well Since commit 222f2c7c6d14 ("iomap: always run error completions in user context"), read error completions are deferred to s_dio_done_wq. This means the workqueue also needs to be allocated for async reads.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-68357 since 12/16/2025. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 279715 (Linux Distros Unpatched Vulnerability : CVE-2025-68357), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.18.2 or 6.19-rc1 eliminates this vulnerability. Applying the patch c67775cf0da2407f113c1229e350758f4dca0f51/7fd8720dff2d9c70cf5a1a13b7513af01952ec02 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (279715), EUVD (EUVD-2025-205097) and CERT Bund (WID-SEC-2025-2920). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

Open Source Linux Kernel

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 279715
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-68357

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.18.2/6.19-rc1
Patch: c67775cf0da2407f113c1229e350758f4dca0f51/7fd8720dff2d9c70cf5a1a13b7513af01952ec02

Timelineinfo

12/16/2025 CVE reserved
12/24/2025 +8 days Advisory disclosed
12/24/2025 +0 days VulDB entry created
01/12/2026 +19 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-68357 (🔒)
GCVE (CVE): GCVE-0-2025-68357
GCVE (VulDB): GCVE-100-338187
EUVD: 🔒
CERT Bund: WID-SEC-2025-2920 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 12/24/2025 15:25
Updated: 01/12/2026 05:30
Changes: 12/24/2025 15:25 (59), 12/25/2025 04:35 (2), 12/25/2025 13:15 (7), 01/12/2026 05:30 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.