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Vulnerability record · CVE-2026-43460 · published 8 May 2026

CVE-2026-43460: Linux kernel double free vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: spi: rockchip-sfc: Fix double-free in remove() callback The driver uses devm_spi_register_controller() for registration, which automatically unregisters the controller via devm cleanup when the device is removed. The manual call to spi_unregister_controller() in the remove() callback can lead to a double-free. And to make sure controller is unregistered before DMA buffer is unmapped, switch to use spi_register_controller() in probe().

7.8 CVSS 3.1 High EPSS 0.17% · top 94.0% CWE-415 · Double free
7.8CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: spi: rockchip-sfc: Fix double-free in remove() callback The driver uses devm_spi_register_controller() for registration, which automatically unregisters the controller via devm cleanup when the device is removed. The manual call to spi_unregister_controller() in the remove() callback can lead to a double-free. And to make sure controller is unregistered before DMA buffer is unmapped, switch to use spi_register_controller() in probe().

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/111e2863372c322e836e0c896f6dd9cf4ee08c71 Patch
https://git.kernel.org/stable/c/85fb53351e6a3b921357a2178671e847a087e400 Patch
https://git.kernel.org/stable/c/b6051f2bdd4bd3dde85b68558edd3a6843489221 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-43460), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.