CVE-2023-53528 RDMA/rxe: Fix unsafe drain work queue code

What is CVE-2023-53528?

CVE-2023-53528 is a medium-severity vulnerability in Linux kernel, published on 1 Oct 2025. 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:

RDMA/rxe: Fix unsafe drain work queue code

If create_qp does not fully succeed it is possible for qp cleanup code to attempt to drain the send or recv work queues before the queues have been created causing a seg fault. This patch checks to see if the queues exist before attempting to drain them.

Which versions are affected by CVE-2023-53528?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-53528?

Apply the vendor's patch.

Is CVE-2023-53528 being exploited?

There is no known exploitation of CVE-2023-53528 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-2023-53528, DEBIAN-CVE-2023-53528, GHSA-mcg3-6968-rr84, UBUNTU-CVE-2023-53528.