CVE-2023-52508 nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid()

What is CVE-2023-52508?

CVE-2023-52508 is a medium-severity vulnerability in Linux kernel, published on 2 Mar 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:

nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid()

The nvme_fc_fcp_op structure describing an AEN operation is initialized with a null request structure pointer. An FC LLDD may make a call to nvme_fc_io_getuuid passing a pointer to an nvmefc_fcp_req for an AEN operation.

Add validation of the request structure pointer before dereference.

Weakness: CWE-476

Which versions are affected by CVE-2023-52508?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-52508?

Apply the vendor's patch.

Is CVE-2023-52508 being exploited?

There is no known exploitation of CVE-2023-52508 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-2023-52508, DEBIAN-CVE-2023-52508, GHSA-9mvw-qw27-cc95, ROOT-OS-UBUNTU-2204-CVE-2023-52508, UBUNTU-CVE-2023-52508.