CVE-2026-23387
Received Received - Intake
Double-Free Vulnerability in Linux Kernel cs42l43 Pin Control Module

Publication date: 2026-03-25

Last updated on: 2026-04-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: pinctrl: cirrus: cs42l43: Fix double-put in cs42l43_pin_probe() devm_add_action_or_reset() already invokes the action on failure, so the explicit put causes a double-put.
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Meta Information
Published
2026-03-25
Last Modified
2026-04-24
Generated
2026-06-16
AI Q&A
2026-03-25
EPSS Evaluated
2026-06-15
NVD
CVE-2026-23387
EUVD
EUVD-2026-15387
Affected Vendors & Products
Showing 13 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.17.10 (inc) to 6.18 (exc)
linux linux_kernel 6.18
linux linux_kernel From 6.18.1 (inc) to 6.18.17 (exc)
linux linux_kernel From 6.19 (inc) to 6.19.7 (exc)
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel From 6.12.60 (inc) to 6.12.77 (exc)
linux linux_kernel From 6.6.118 (inc) to 6.6.130 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-415 The product calls free() twice on the same memory address.
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Executive Summary

This vulnerability exists in the Linux kernel specifically in the pinctrl driver for the Cirrus Logic cs42l43 device. The issue is a double-put error in the function cs42l43_pin_probe(). The function devm_add_action_or_reset() already performs a cleanup action on failure, so an additional explicit put call causes the same resource to be released twice, which is a programming error.

Impact Analysis

A double-put error can lead to undefined behavior such as memory corruption or system instability. In the context of the Linux kernel, this could potentially cause crashes or other unpredictable behavior when the cs42l43 pinctrl driver is used.

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