CVE-2024-43860: linux kernel Null Dereference — Fix

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]

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.14 — 4.19.320
linux	linux_kernel	4.20 — 5.4.282
linux	linux_kernel	5.5 — 5.10.224
linux	linux_kernel	5.11 — 5.15.165
linux	linux_kernel	5.16 — 6.1.103
linux	linux_kernel	6.2 — 6.6.44
linux	linux_kernel	6.7 — 6.10.3

References

Advisories & Patches

https://git.kernel.org/stable/c/2fa26ca8b786888673689ccc9da6094150939982 https://git.kernel.org/stable/c/4e13b7c23988c0a13fdca92e94296a3bc2ff9f21 https://git.kernel.org/stable/c/6884fd0283e0831be153fb8d82d9eda8a55acaaa https://git.kernel.org/stable/c/6b50462b473fdccdc0dfad73001147e40ff19a66 https://git.kernel.org/stable/c/6c9ea3547fad252fe9ae5d3ed7e066e2085bf3a2 https://git.kernel.org/stable/c/84beb7738459cac0ff9f8a7c4654b8ff82a702c0 https://git.kernel.org/stable/c/9a17cf8b2ce483fa75258bc2cdcf628f24bcf5f8 https://git.kernel.org/stable/c/c877a5f5268d4ab8224b9c9fbce3d746e4e72bc9

Other References

https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-43860? +

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] It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-43860? +

CVE-2024-43860 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-43860? +

CVE-2024-43860 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-43860? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-43860