Linux Kernel up to 6.8.7/6.9-rc4 DRM intel_fb_bo_framebuffer_init buffer overflow

Summaryinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.8.7/6.9-rc4. This affects the function intel_fb_bo_framebuffer_init of the component DRM. Such manipulation leads to buffer overflow. This vulnerability is documented as CVE-2024-26985. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.8.7/6.9-rc4. It has been rated as critical. Affected by this issue is the function intel_fb_bo_framebuffer_init of the component DRM. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix bo leak in intel_fb_bo_framebuffer_init Add a unreference bo in the error path, to prevent leaking a bo ref. Return 0 on success to clarify the success path. (cherry picked from commit a2f3d731be3893e730417ae3190760fcaffdf549)

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2024-26985 since 02/19/2024. The exploitation is known to be easy. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/06/2026).

Upgrading to version 6.8.8 or 6.9-rc5 eliminates this vulnerability. Applying the patch 7d8ac0942c31/652ead9b746a 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 CERT Bund (WID-SEC-2024-1008). Once again VulDB remains the best source for 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

• 6.8.0
• 6.8.1
• 6.8.2
• 6.8.3
• 6.8.4
• 6.8.5
• 6.8.6
• 6.8.7
• 6.9-rc1
• 6.9-rc2
• 6.9-rc3
• 6.9-rc4

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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