Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2 VIA Watchdog Driver /proc/iomem allocate_resource allocation of resources

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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2 and classified as critical. Impacted is the function allocate_resource of the file /proc/iomem of the component VIA Watchdog Driver. This manipulation causes allocation of resources. This vulnerability is handled as CVE-2025-71114. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2. It has been declared as critical. Affected by this vulnerability is the function allocate_resource of the file /proc/iomem of the component VIA Watchdog Driver. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is 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: via_wdt: fix critical boot hang due to unnamed resource allocation The VIA watchdog driver uses allocate_resource() to reserve a MMIO region for the watchdog control register. However, the allocated resource was not given a name, which causes the kernel resource tree to contain an entry marked as "<BAD>" under /proc/iomem on x86 platforms. During boot, this unnamed resource can lead to a critical hang because subsequent resource lookups and conflict checks fail to handle the invalid entry properly.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2025-71114 since 01/13/2026. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 298680 (Debian dla-4475 : ata-modules-5.10.0-35-armmp-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.160, 6.6.120, 6.12.64, 6.18.3 or 6.19-rc1 eliminates this vulnerability. Applying the patch 47c910965c936724070d2a8094a4c3ed8f452856/d2c7c90aca7b37f60f16b2bedcfeb16204f2f35d/f7b6370d0fbee06a867037d675797a606cb62e57/c6a2dd4f2e4e6cbdfe7a1618160281af897b75db/7aa31ee9ec92915926e74731378c009c9cc04928 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 (298680), EUVD (EUVD-2026-2492) and CERT Bund (WID-SEC-2026-0119). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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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: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 298680
Nessus Name: Debian dla-4475 : ata-modules-5.10.0-35-armmp-di - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.160/6.6.120/6.12.64/6.18.3/6.19-rc1
Patch: 47c910965c936724070d2a8094a4c3ed8f452856/d2c7c90aca7b37f60f16b2bedcfeb16204f2f35d/f7b6370d0fbee06a867037d675797a606cb62e57/c6a2dd4f2e4e6cbdfe7a1618160281af897b75db/7aa31ee9ec92915926e74731378c009c9cc04928

Timelineinfo

01/13/2026 CVE reserved
01/14/2026 +1 days Advisory disclosed
01/14/2026 +0 days VulDB entry created
03/25/2026 +70 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-71114 (🔒)
GCVE (CVE): GCVE-0-2025-71114
GCVE (VulDB): GCVE-100-341071
EUVD: 🔒
CERT Bund: WID-SEC-2026-0119 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 01/14/2026 17:27
Updated: 03/25/2026 21:51
Changes: 01/14/2026 17:27 (60), 01/16/2026 05:08 (7), 01/19/2026 18:09 (1), 01/20/2026 11:18 (1), 02/16/2026 13:52 (2), 03/09/2026 05:29 (1), 03/25/2026 21:51 (10)
Complete: 🔍
Cache ID: 216:574:103

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