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CVE-2022-50672

kernel: mailbox: zynq-ipi: fix error handling while device_register() fails

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · December 9, 2025

Updated · June 30, 2026

Description

A vulnerability was found in the Xilinx ZynqMP IPI mailbox driver in the Linux kernel. When device_register() fails, two issues occur: the name allocated by dev_set_name() is leaked, and a subsequent call to device_unregister() in zynqmp_ipi_free_mboxes() causes a kernel crash when attempting to remove a device that was never successfully added. This can lead to memory leaks and kernel crashes.

Statement

This vulnerability affects Xilinx ZynqMP systems using the IPI mailbox driver. The impact is limited to specific ARM-based embedded systems and requires device registration failures to trigger.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-253 · Incorrect Check of Function Return Value