Linux Kernel up to 6.6.33/6.9.4 async list_del_init initialization

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 6.6.33/6.9.4. This vulnerability affects the function list_del_init of the component async. The manipulation leads to an unknown weakness. This vulnerability is listed as CVE-2024-39485. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.6.33/6.9.4 and classified as problematic. This issue affects the function list_del_init of the component async. Using CWE to declare the problem leads to CWE-665. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: media: v4l: async: Properly re-initialise notifier entry in unregister The notifier_entry of a notifier is not re-initialised after unregistering the notifier. This leads to dangling pointers being left there so use list_del_init() to return the notifier_entry an empty list.

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2024-39485 since 06/25/2024. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 215352 (Azure Linux 3.0 Security Update: kernel (CVE-2024-39485)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.6.34 or 6.9.5 eliminates this vulnerability. Applying the patch 87100b092462/1aa6cd4adfc0/9537a8425a7a 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 (215352). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 6.6.0
• 6.6.1
• 6.6.2
• 6.6.3
• 6.6.4
• 6.6.5
• 6.6.6
• 6.6.7
• 6.6.8
• 6.6.9
• 6.6.10
• 6.6.11
• 6.6.12
• 6.6.13
• 6.6.14
• 6.6.15
• 6.6.16
• 6.6.17
• 6.6.18
• 6.6.19
• 6.6.20
• 6.6.21
• 6.6.22
• 6.6.23
• 6.6.24
• 6.6.25
• 6.6.26
• 6.6.27
• 6.6.28
• 6.6.29
• 6.6.30
• 6.6.31
• 6.6.32
• 6.6.33
• 6.9.0
• 6.9.1
• 6.9.2
• 6.9.3
• 6.9.4

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion