CVE-2026-53044 Linux CVE debrief

Who should care

System administrators and security teams responsible for Linux kernel-based systems, particularly those using soc/tegra components, should be aware of this vulnerability. The high severity of this vulnerability and its potential impact on system stability and security make it essential for these stakeholders to assess their exposure and take necessary actions.

Technical summary

The vulnerability is caused by an incorrect usage of ARRAY_SIZE in fabric lookup tables within the soc/tegra component of the Linux kernel. This could lead to out-of-bounds access during target timeout lookup, potentially causing system instability or security issues. The CVSS vector for this vulnerability is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H, indicating a high severity. The vulnerability affects the Linux kernel, specifically the soc/tegra component.

Defensive priority

High priority should be given to patching or mitigating this vulnerability, as it has a high CVSS score and could lead to significant system instability or security breaches if exploited.

Recommended defensive actions

• Assess exposure to this vulnerability in Linux kernel-based systems, particularly those using soc/tegra components.
• Review and apply patches or updates provided by the Linux kernel maintainers or relevant vendors.
• Implement compensating controls, such as monitoring and intrusion detection, to detect potential exploitation attempts.
• Verify system configurations and inventory to ensure accurate tracking of affected systems.
• Consider implementing additional security measures, such as access controls and segmentation, to reduce the attack surface.

Evidence notes

The CVE record and NVD detail pages provide official information about this vulnerability. The Linux kernel maintainers have provided patches to address this issue. The CVSS score and vector provide a quantitative assessment of the vulnerability's severity.

Official resources