CVE-2024-36940

HIGH
Published May 30, 2024 Modified May 12, 2026 CWE-415

Description

In the Linux kernel, the following vulnerability has been resolved: pinctrl: core: delete incorrect free in pinctrl_enable() The "pctldev" struct is allocated in devm_pinctrl_register_and_init(). It's a devm_ managed pointer that is freed by devm_pinctrl_dev_release(), so freeing it in pinctrl_enable() will lead to a double free. The devm_pinctrl_dev_release() function frees the pindescs and destroys the mutex as well.

Is your site exposed to CVE-2024-36940?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-415 CWE-415

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
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
debian debian_linux

References

Advisories & Patches

https://git.kernel.org/stable/c/288bc4aa75f150d6f1ee82dd43c6da1b438b6068 https://git.kernel.org/stable/c/41f88ef8ba387a12f4a2b8c400b6c9e8e54b2cca https://git.kernel.org/stable/c/5038a66dad0199de60e5671603ea6623eb9e5c79 https://git.kernel.org/stable/c/558c8039fdf596a584a92c171cbf3298919c448c https://git.kernel.org/stable/c/735f4c6b6771eafe336404c157ca683ad72a040d https://git.kernel.org/stable/c/ac7d65795827dc0cf7662384ed27caf4066bd72e https://git.kernel.org/stable/c/cdaa171473d98962ae86f2a663d398fda2fbeefd https://git.kernel.org/stable/c/f9f1e321d53e4c5b666b66e5b43da29841fb55ba https://git.kernel.org/stable/c/288bc4aa75f150d6f1ee82dd43c6da1b438b6068 https://git.kernel.org/stable/c/41f88ef8ba387a12f4a2b8c400b6c9e8e54b2cca https://git.kernel.org/stable/c/5038a66dad0199de60e5671603ea6623eb9e5c79 https://git.kernel.org/stable/c/558c8039fdf596a584a92c171cbf3298919c448c https://git.kernel.org/stable/c/735f4c6b6771eafe336404c157ca683ad72a040d https://git.kernel.org/stable/c/ac7d65795827dc0cf7662384ed27caf4066bd72e https://git.kernel.org/stable/c/cdaa171473d98962ae86f2a663d398fda2fbeefd https://git.kernel.org/stable/c/f9f1e321d53e4c5b666b66e5b43da29841fb55ba

Frequently Asked Questions

What is CVE-2024-36940? +
In the Linux kernel, the following vulnerability has been resolved: pinctrl: core: delete incorrect free in pinctrl_enable() The "pctldev" struct is allocated in devm_pinctrl_register_and_init(). It's a devm_ managed pointer that is freed by devm_pinctrl_dev_release(), so freeing it in pinctrl_enable() will lead to a double free. The devm_pinctrl_dev_release() function frees the pindescs and destroys the mutex as well. It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2024-36940? +
CVE-2024-36940 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-36940? +
CVE-2024-36940 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-36940? +
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.

Related Vulnerabilities

CVE-2026-12659

A denial-of-service security issue exists in the affected products. The security issue stems from improper handling of exceptional conditions when …
CVE-2025-2027

A double free vulnerability has been identified in the ASUS System Analysis service. This vulnerability can be triggered by sending …
CVE-2025-8058

The regcomp function in the GNU C library version from 2.4 to 2.41 is subject to a double free if …
CVE-2024-22097 9.8

A double-free vulnerability exists in the BrainVision Header Parsing functionality of The Biosig Project libbiosig Master Branch (ab0ee111) and 2.5.0. …
CVE-2024-23809 9.8

A double-free vulnerability exists in the BrainVision ASCII Header Parsing functionality of The Biosig Project libbiosig 2.5.0 and Master Branch …
CVE-2024-27099 9.8

The uAMQP is a C library for AMQP 1.0 communication to Azure Cloud Services. When processing an incorrect `AMQP_VALUE` failed …

Don't wait for an exploit

Scan your website for vulnerabilities like CVE-2024-36940 — free, no signup required.