CVE-2026-53307
Received Received - Intake
Kernel Memory Corruption in Linux Kernel Pinconf

Publication date: 2026-06-26

Last updated on: 2026-06-26

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: pinctrl: pinconf-generic: Fully validate 'pinmux' property The pinconf_generic_parse_dt_pinmux() assumes that the 'pinmux' property is not empty when present. This might be not true. With that, the allocator will give a special value in return and not NULL which lead to the crash when trying to access that (invalid) memory. Fix that by fully validating 'pinmux' value, including its length.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-06-26
Last Modified
2026-06-26
Generated
2026-06-27
AI Q&A
2026-06-26
EPSS Evaluated
N/A
NVD
CVE-2026-53307
EUVD
EUVD-2026-39842
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux_kernel linux_kernel *
linux linux_kernel *
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability exists in the Linux kernel's pinctrl subsystem, specifically in the pinconf-generic component. The function pinconf_generic_parse_dt_pinmux() assumes that the 'pinmux' property is always present and not empty. However, this assumption is incorrect because the 'pinmux' property might be empty even when present.

Due to this incorrect assumption, the allocator returns a special value instead of NULL, which leads to the kernel attempting to access invalid memory. This results in a crash. The vulnerability is fixed by fully validating the 'pinmux' property, including checking its length to ensure it is not empty.

Impact Analysis

This vulnerability can cause the Linux kernel to crash due to invalid memory access when processing the 'pinmux' property. Such a crash can lead to system instability, denial of service, or unexpected reboots, impacting the availability and reliability of systems running the affected kernel.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-53307. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart