CVE-2024-43860 remoteproc: imx_rproc: Skip over memory region when node value is NULL

Medium 5.5 Published Updated

A null pointer dereference in the Linux kernel's i.MX remoteproc driver can cause a system crash when processing empty memory region phandles.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2024-43860?

CVE-2024-43860 is a medium-severity vulnerability in Linux kernel, published on 17 Aug 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:

remoteproc: imx_rproc: Skip over memory region when node value is NULL

In imx_rproc_addr_init() "nph = of_count_phandle_with_args()" just counts number of phandles. But phandles may be empty. So of_parse_phandle() in the parsing loop (0 < a < nph) may return NULL which is later dereferenced. Adjust this issue by adding NULL-return check.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

[Fixed title to fit within the prescribed 70-75 charcters]

Weakness: CWE-476

Which versions are affected by CVE-2024-43860?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-43860?

Apply the vendor's patch.

Is CVE-2024-43860 being exploited?

There is no known exploitation of CVE-2024-43860 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-47974, AZL-48015, BELL-CVE-2024-43860, DEBIAN-CVE-2024-43860, GHSA-58q5-g3vc-4rgh, UBUNTU-CVE-2024-43860.

Is CVE-2024-43860 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free