CVE-2026-53030

Analyzed Analyzed - Analysis Complete

Memory Leak in Linux Kernel I3C Driver

Publication date: 2026-06-24

Last updated on: 2026-07-14

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: i3c: master: renesas: Fix memory leak in renesas_i3c_i3c_xfers() The xfer structure allocated by renesas_i3c_alloc_xfer() was never freed in the renesas_i3c_i3c_xfers() function. Use the __free(kfree) cleanup attribute to automatically free the memory when the variable goes out of scope.

CVSS Scores

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Meta Information

Published

2026-06-24

Last Modified

2026-07-14

Generated

2026-07-15

AI Q&A

2026-06-24

EPSS Evaluated

2026-07-13

NVD

CVE-2026-53030

EUVD

EUVD-2026-38898

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	From 6.19 (inc) to 7.0.10 (exc)
linux	linux_kernel	From 6.17 (inc) to 6.18.33 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-401	The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

Attack-Flow Graph

Executive Summary

This vulnerability is a memory leak in the Linux kernel's i3c master driver for Renesas devices. Specifically, the xfer structure allocated by the function renesas_i3c_alloc_xfer() was not freed in the renesas_i3c_i3c_xfers() function, causing allocated memory to remain unreleased.

The issue was fixed by using the __free(kfree) cleanup attribute, which automatically frees the allocated memory when the variable goes out of scope.

Impact Analysis

A memory leak can lead to increased memory usage over time, potentially causing system instability or degraded performance if the leaked memory accumulates significantly.

In embedded or resource-constrained environments using the affected i3c master driver, this could result in reduced reliability or unexpected behavior.

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