Linux Kernel up to 6.1.155/6.6.110/6.12.51/6.16.11 hi311x hi3110_open null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.1.155/6.6.110/6.12.51/6.16.11 and classified as critical. This affects the function hi3110_open of the component hi311x. Performing a manipulation results in null pointer dereference. This vulnerability is identified as CVE-2025-40107. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.1.155/6.6.110/6.12.51/6.16.11. This affects the function hi3110_open of the component hi311x. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: can: hi311x: fix null pointer dereference when resuming from sleep before interface was enabled This issue is similar to the vulnerability in the `mcp251x` driver, which was fixed in commit 03c427147b2d ("can: mcp251x: fix resume from sleep before interface was brought up"). In the `hi311x` driver, when the device resumes from sleep, the driver schedules `priv->restart_work`. However, if the network interface was not previously enabled, the `priv->wq` (workqueue) is not allocated and initialized, leading to a null pointer dereference. To fix this, we move the allocation and initialization of the workqueue from the `hi3110_open` function to the `hi3110_can_probe` function. This ensures that the workqueue is properly initialized before it is used during device resume. And added logic to destroy the workqueue in the error handling paths of `hi3110_can_probe` and in the `hi3110_can_remove` function to prevent resource leaks.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-40107 since 04/16/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 272236 (Linux Distros Unpatched Vulnerability : CVE-2025-40107), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.156, 6.6.111, 6.12.52 or 6.16.12 eliminates this vulnerability. Applying the patch d1fc4c041459e2d4856c1b2501486ba4f0cbf96b/e93af787187e585933570563c643337fa731584a/1d2ef21f02baff0c109ad78b9e835fb4acb14533/fd00cf38fd437c979f0e5905e3ebdfc3f55a4b96/6b696808472197b77b888f50bc789a3bae077743 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 (272236), EUVD (EUVD-2025-37481) and CERT Bund (WID-SEC-2025-2483). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Debian Linux
  • SUSE Linux
  • 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: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 272236
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-40107

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.156/6.6.111/6.12.52/6.16.12
Patch: d1fc4c041459e2d4856c1b2501486ba4f0cbf96b/e93af787187e585933570563c643337fa731584a/1d2ef21f02baff0c109ad78b9e835fb4acb14533/fd00cf38fd437c979f0e5905e3ebdfc3f55a4b96/6b696808472197b77b888f50bc789a3bae077743

Timelineinfo

04/16/2025 CVE reserved
11/03/2025 +201 days Advisory disclosed
11/03/2025 +0 days VulDB entry created
12/21/2025 +48 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-40107 (🔒)
GCVE (CVE): GCVE-0-2025-40107
GCVE (VulDB): GCVE-100-330921
EUVD: 🔒
CERT Bund: WID-SEC-2025-2483 - Linux Kernel: Schwachstelle ermöglicht Denial of Service

Entryinfo

Created: 11/03/2025 15:12
Updated: 12/21/2025 22:58
Changes: 11/03/2025 15:12 (59), 11/03/2025 16:37 (1), 11/04/2025 17:29 (2), 12/21/2025 22:58 (7)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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