Linux Kernel up to 6.7.11/6.8.2 amdgpu powerplay_table null pointer dereference

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.7.11/6.8.2. The affected element is the function powerplay_table of the component amdgpu. This manipulation causes null pointer dereference. The identification of this vulnerability is CVE-2024-26949. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.7.11/6.8.2. It has been declared as critical. Affected by this vulnerability is the function powerplay_table of the component amdgpu. 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. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/pm: Fix NULL pointer dereference when get power limit Because powerplay_table initialization is skipped under sriov case, We check and set default lower and upper OD value if powerplay_table is NULL.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2024-26949 since 02/19/2024. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 215847 (Azure Linux 3.0 Security Update: kernel (CVE-2024-26949)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.7.12, 6.8.3 or 6.9-rc1 eliminates this vulnerability. Applying the patch 99c2f1563b14/b8eaa8ef1f11/08ae9ef829b8 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 (215847) and CERT Bund (WID-SEC-2024-1008). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• Oracle VM
• EMC Avamar
• IBM QRadar SIEM
• Dell NetWorker
• IBM Security Guardium
• RESF Rocky Linux
• Broadcom Brocade SANnav
• Open Source Linux Kernel
• IBM Business Automation Workflow
• IBM Spectrum Protect Plus
• Dell Avamar
• Juniper Junos Space
• IBM DataPower Gateway
• IBM Storage Scale System
• SolarWinds Security Event Manager
• Dell PowerProtect Data Domain
• Dell PowerScale OneFS

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 6.7.0
• 6.7.1
• 6.7.2
• 6.7.3
• 6.7.4
• 6.7.5
• 6.7.6
• 6.7.7
• 6.7.8
• 6.7.9
• 6.7.10
• 6.7.11
• 6.8.0
• 6.8.1
• 6.8.2

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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

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