Linux Kernel up to 6.9.5 mlx90635_probe 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 classified as critical was found in Linux Kernel up to 6.9.5. Affected by this vulnerability is the function mlx90635_probe. Executing a manipulation can lead to null pointer dereference. This vulnerability appears as CVE-2024-40933. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.9.5. It has been declared as critical. This vulnerability affects the function mlx90635_probe. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: iio: temperature: mlx90635: Fix ERR_PTR dereference in mlx90635_probe() When devm_regmap_init_i2c() fails, regmap_ee could be error pointer, instead of checking for IS_ERR(regmap_ee), regmap is checked which looks like a copy paste error.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2024-40933 since 07/12/2024. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 247426 (Linux Distros Unpatched Vulnerability : CVE-2024-40933), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.9.6 eliminates this vulnerability. Applying the patch 5a5595ae8cc7/a23c14b062d8 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 vulnerability database at Tenable (247426). Once again VulDB remains the best source for vulnerability data.

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: 247426
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2024-40933

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.9.6
Patch: 5a5595ae8cc7/a23c14b062d8

Timelineinfo

07/12/2024 🔍
07/12/2024 +0 days 🔍
07/12/2024 +0 days 🔍
08/10/2025 +394 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-40933 (🔍)
GCVE (CVE): GCVE-0-2024-40933
GCVE (VulDB): GCVE-100-271348

Entryinfo

Created: 07/12/2024 17:12
Updated: 08/10/2025 22:11
Changes: 07/12/2024 17:12 (58), 08/10/2025 22:11 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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