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CVE-2023-53507

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Unregister devlink params in case interface is down Currently, in case an interface is down, mlx5 driver doesn't unre…

Published Oct 1, 2025EPSS 0.15%

Overview

CVE-2023-53507 is a high-severity vulnerability. It was published on October 1, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

net/mlx5: Unregister devlink params in case interface is down

Currently, in case an interface is down, mlx5 driver doesn't

unregister its devlink params, which leads to this WARN[1].

Fix it by unregistering devlink params in that case as well.

[1]

[ 295.244769 ] WARNING: CPU: 15 PID: 1 at net/core/devlink.c:9042 devlink_free+0x174/0x1fc

[ 295.488379 ] CPU: 15 PID: 1 Comm: shutdown Tainted: G S OE 5.15.0-1017.19.3.g0677e61-bluefield #g0677e61

[ 295.509330 ] Hardware name: https://www.mellanox.com BlueField SoC/BlueField SoC, BIOS 4.2.0.12761 Jun 6 2023

[ 295.543096 ] pc : devlink_free+0x174/0x1fc

[ 295.551104 ] lr : mlx5_devlink_free+0x18/0x2c [mlx5_core]

[ 295.561816 ] sp : ffff80000809b850

[ 295.711155 ] Call trace:

[ 295.716030 ] devlink_free+0x174/0x1fc

[ 295.723346 ] mlx5_devlink_free+0x18/0x2c [mlx5_core]

[ 295.733351 ] mlx5_sf_dev_remove+0x98/0xb0 [mlx5_core]

[ 295.743534 ] auxiliary_bu

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/471f59b3455314f0cafacf3096453727876355a9Refgit.kernel.org/stable/c/53d737dfd3d7b023fa9fa445ea3f3db0ac9da402

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53507?

CVE-2023-53507 is a high-severity vulnerability. It was published on October 1, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-53507?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-53507?

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-2023-53507?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53507 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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