CVE-2023-52658 Revert "net/mlx5: Block entering switchdev mode with ns inconsistency"

What is CVE-2023-52658?

CVE-2023-52658 is a medium-severity denial of service vulnerability in Linux kernel, published on 17 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

Revert "net/mlx5: Block entering switchdev mode with ns inconsistency"

This reverts commit 662404b24a4c4d839839ed25e3097571f5938b9b. The revert is required due to the suspicion it is not good for anything and cause crash.

Which versions are affected by CVE-2023-52658?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-52658?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-52658 being exploited?

There is no known exploitation of CVE-2023-52658 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2023-52658, DEBIAN-CVE-2023-52658, GHSA-gx36-99wr-f3mm, ROOT-OS-DEBIAN-12-CVE-2023-52658, UBUNTU-CVE-2023-52658.