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CVE-2026-53315

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: drm/amd/ras: Fix NULL deref in ras_core_get_utc_second_timestamp() ras_core_get_utc_second_timestamp() retrieves the current UT…

Published Jun 26, 2026CWE-476EPSS 0.14%

Overview

CVE-2026-53315 is a medium-severity vulnerability. It was published on June 26, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/ras: Fix NULL deref in ras_core_get_utc_second_timestamp()

ras_core_get_utc_second_timestamp() retrieves the current UTC timestamp

(in seconds since the Unix epoch) through a platform-specific RAS system

callback and is used for timestamping RAS error events.

The function checks ras_core in the conditional statement before calling

the sys_fn callback. However, when the condition fails, the function

prints an error message using ras_core->dev.

If ras_core is NULL, this can lead to a potential NULL pointer

dereference when accessing ras_core->dev.

Add an early NULL check for ras_core at the beginning of the function

and return 0 when the pointer is not valid. This prevents the

dereference and makes the control flow clearer.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/2b8101cc3b34d4d80d799360d2744829d5964479Refgit.kernel.org/stable/c/6c84f7f0afc415691ffa7d48aa7ce1d8e6083032

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53315?

CVE-2026-53315 is a medium-severity vulnerability. It was published on June 26, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-53315?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-53315?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-53315?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53315 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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