CVE-2024-40968

MEDIUM
Published Jul 12, 2024 Modified Nov 3, 2025 CWE-754

Description

In the Linux kernel, the following vulnerability has been resolved: MIPS: Octeon: Add PCIe link status check The standard PCIe configuration read-write interface is used to access the configuration space of the peripheral PCIe devices of the mips processor after the PCIe link surprise down, it can generate kernel panic caused by "Data bus error". So it is necessary to add PCIe link status check for system protection. When the PCIe link is down or in training, assigning a value of 0 to the configuration address can prevent read-write behavior to the configuration space of peripheral PCIe devices, thereby preventing kernel panic.

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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-754 CWE-754

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/1c33fd17383f48f679186c54df78542106deeaa0 https://git.kernel.org/stable/c/25998f5613159fe35920dbd484fcac7ea3ad0799 https://git.kernel.org/stable/c/29b83a64df3b42c88c0338696feb6fdcd7f1f3b7 https://git.kernel.org/stable/c/38d647d509543e9434b3cc470b914348be271fe9 https://git.kernel.org/stable/c/64845ac64819683ad5e51b668b2ed56ee3386aee https://git.kernel.org/stable/c/6bff05aaa32c2f7e1f6e68e890876642159db419 https://git.kernel.org/stable/c/6c1b9fe148a4e03bbfa234267ebb89f35285814a https://git.kernel.org/stable/c/d996deb80398a90dd3c03590e68dad543da87d62 https://git.kernel.org/stable/c/1c33fd17383f48f679186c54df78542106deeaa0 https://git.kernel.org/stable/c/25998f5613159fe35920dbd484fcac7ea3ad0799 https://git.kernel.org/stable/c/29b83a64df3b42c88c0338696feb6fdcd7f1f3b7 https://git.kernel.org/stable/c/38d647d509543e9434b3cc470b914348be271fe9 https://git.kernel.org/stable/c/64845ac64819683ad5e51b668b2ed56ee3386aee https://git.kernel.org/stable/c/6bff05aaa32c2f7e1f6e68e890876642159db419 https://git.kernel.org/stable/c/6c1b9fe148a4e03bbfa234267ebb89f35285814a https://git.kernel.org/stable/c/d996deb80398a90dd3c03590e68dad543da87d62

Frequently Asked Questions

What is CVE-2024-40968? +
In the Linux kernel, the following vulnerability has been resolved: MIPS: Octeon: Add PCIe link status check The standard PCIe configuration read-write interface is used to access the configuration space of the peripheral PCIe devices of the mips processor after the PCIe link surprise down, it can generate kernel panic caused by "Data bus error". So it is necessary to add PCIe link status check for system protection. When the PCIe link is down or in training, assigning a value of 0 to the configuration address can prevent read-write behavior to the configuration space of peripheral PCIe devices, thereby preventing kernel panic. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2024-40968? +
CVE-2024-40968 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-2024-40968? +
CVE-2024-40968 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-2024-40968? +
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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