5.5
MEDIUM
CVE-2024-56689
Linux PCI Endpoint MHI MMIO Property Vulnerability (NULL Pointer Dereference)
Description

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio' If platform_get_resource_byname() fails and returns NULL because DT lacks an 'mmio' property for the MHI endpoint, dereferencing res->start will cause a NULL pointer access. Add a check to prevent it. [kwilczynski: error message update per the review feedback] [bhelgaas: commit log]

INFO

Published Date :

Dec. 28, 2024, 10:15 a.m.

Last Modified :

Jan. 8, 2025, 4:45 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2024-56689 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2024-56689 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 2 days, 4 hours ago
4 stars 1 fork 1 watcher
Born at : April 16, 2025, 1:43 p.m. This repo has been linked 280 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-56689 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-56689 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Jan. 08, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE NIST CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.5 up to (excluding) 6.6.64 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.11.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.12 up to (excluding) 6.12.2
    Changed Reference Type https://git.kernel.org/stable/c/0e6d92e3b973de78eb7015154cf1197af9fac5c9 No Types Assigned https://git.kernel.org/stable/c/0e6d92e3b973de78eb7015154cf1197af9fac5c9 Patch
    Changed Reference Type https://git.kernel.org/stable/c/242ee2b0ad9b23f47084904fce3f9f228068a1f9 No Types Assigned https://git.kernel.org/stable/c/242ee2b0ad9b23f47084904fce3f9f228068a1f9 Patch
    Changed Reference Type https://git.kernel.org/stable/c/5089b3d874e9933d9842e90410d3af1520494757 No Types Assigned https://git.kernel.org/stable/c/5089b3d874e9933d9842e90410d3af1520494757 Patch
    Changed Reference Type https://git.kernel.org/stable/c/c8b9d6b7d62a444e0bca5b9ae28f9f2b0f52feef No Types Assigned https://git.kernel.org/stable/c/c8b9d6b7d62a444e0bca5b9ae28f9f2b0f52feef Patch
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Dec. 28, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio' If platform_get_resource_byname() fails and returns NULL because DT lacks an 'mmio' property for the MHI endpoint, dereferencing res->start will cause a NULL pointer access. Add a check to prevent it. [kwilczynski: error message update per the review feedback] [bhelgaas: commit log]
    Added Reference https://git.kernel.org/stable/c/0e6d92e3b973de78eb7015154cf1197af9fac5c9
    Added Reference https://git.kernel.org/stable/c/242ee2b0ad9b23f47084904fce3f9f228068a1f9
    Added Reference https://git.kernel.org/stable/c/5089b3d874e9933d9842e90410d3af1520494757
    Added Reference https://git.kernel.org/stable/c/c8b9d6b7d62a444e0bca5b9ae28f9f2b0f52feef
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-56689 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-56689 weaknesses.

CVSS31 - Vulnerability Scoring System
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Latest DB Update: Apr. 26, 2025 9:47