Linux Kernel up to 5.15.164/6.1.104/6.6.45/6.10.4 AMD GPU smu7_update_edc_leakage_table null pointer dereference

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.15.164/6.1.104/6.6.45/6.10.4 and classified as critical. This vulnerability affects the function smu7_update_edc_leakage_table of the component AMD GPU. Performing a manipulation results in null pointer dereference. This vulnerability is reported as CVE-2024-43909. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 5.15.164/6.1.104/6.6.45/6.10.4. This affects the function smu7_update_edc_leakage_table of the component AMD GPU. 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: drm/amdgpu/pm: Fix the null pointer dereference for smu7 optimize the code to avoid pass a null pointer (hwmgr->backend) to function smu7_update_edc_leakage_table.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2024-43909 since 08/17/2024. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 208814 (CBL Mariner 2.0 Security Update: kernel (CVE-2024-43909)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.15.165, 6.1.105, 6.6.46 or 6.10.5 eliminates this vulnerability. Applying the patch 37b9df457cbc/1b8aa82b80bd/09544cd95c68/7f56f050f02c/c02c1960c93e 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 (208814). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.15.164
• 6.1.104
• 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
• 6.6.34
• 6.6.35
• 6.6.36
• 6.6.37
• 6.6.38
• 6.6.39
• 6.6.40
• 6.6.41
• 6.6.42
• 6.6.43
• 6.6.44
• 6.6.45
• 6.10.0
• 6.10.1
• 6.10.2
• 6.10.3
• 6.10.4

License

• open-source

Website

• Vendor: https://www.kernel.org/

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Entryinfo

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

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