CVE-2024-26652: linux kernel Double Free — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: net: pds_core: Fix possible double free in error handling path When auxiliary_device_add() returns error and then calls auxiliary_device_uninit(), Callback function pdsc_auxbus_dev_release calls kfree(padev) to free memory. We shouldn't call kfree(padev) again in the error handling path. Fix this by cleaning up the redundant kfree() and putting the error handling back to where the errors happened.

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CVSS v3.1 Score

4.1

MEDIUM

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

Weakness Type (CWE)

CWE-415 CWE-415

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.4 — 6.6.22
linux	linux_kernel	6.7 — 6.7.10
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/995f802abff209514ac2ee03b96224237646cec3 https://git.kernel.org/stable/c/ba18deddd6d502da71fd6b6143c53042271b82bd https://git.kernel.org/stable/c/ffda0e962f270b3ec937660afd15b685263232d3 https://git.kernel.org/stable/c/995f802abff209514ac2ee03b96224237646cec3 https://git.kernel.org/stable/c/ba18deddd6d502da71fd6b6143c53042271b82bd https://git.kernel.org/stable/c/ffda0e962f270b3ec937660afd15b685263232d3

Frequently Asked Questions

What is CVE-2024-26652? +

In the Linux kernel, the following vulnerability has been resolved: net: pds_core: Fix possible double free in error handling path When auxiliary_device_add() returns error and then calls auxiliary_device_uninit(), Callback function pdsc_auxbus_dev_release calls kfree(padev) to free memory. We shouldn't call kfree(padev) again in the error handling path. Fix this by cleaning up the redundant kfree() and putting the error handling back to where the errors happened. It has a CVSS v3.1 base score of 4.1 (MEDIUM).

How severe is CVE-2024-26652? +

CVE-2024-26652 has a CVSS v3.1 score of 4.1 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-2024-26652? +

CVE-2024-26652 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-2024-26652? +

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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