CVE-2023-52647 media: nxp: imx8-isi: Check whether crossbar pad is non-NULL before access

What is CVE-2023-52647?

CVE-2023-52647 is a medium-severity vulnerability in Linux kernel, published on 1 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:

media: nxp: imx8-isi: Check whether crossbar pad is non-NULL before access

When translating source to sink streams in the crossbar subdev, the driver tries to locate the remote subdev connected to the sink pad. The remote pad may be NULL, if userspace tries to enable a stream that ends at an unconnected crossbar sink. When that occurs, the driver dereferences the NULL pad, leading to a crash.

Prevent the crash by checking if the pad is NULL before using it, and return an error if it is.

Weakness: CWE-476

Which versions are affected by CVE-2023-52647?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-52647?

Apply the vendor's patch.

Is CVE-2023-52647 being exploited?

There is no known exploitation of CVE-2023-52647 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-2023-52647, DEBIAN-CVE-2023-52647, GHSA-f9rf-c3r2-696q, UBUNTU-CVE-2023-52647.