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CVE-2026-23068

Severity CVSS v4.0:
Pending analysis
Type:
CWE-415 Double Free
Publication date:
04/02/2026
Last modified:
13/03/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> spi: spi-sprd-adi: Fix double free in probe error path<br /> <br /> The driver currently uses spi_alloc_host() to allocate the controller<br /> but registers it using devm_spi_register_controller().<br /> <br /> If devm_register_restart_handler() fails, the code jumps to the<br /> put_ctlr label and calls spi_controller_put(). However, since the<br /> controller was registered via a devm function, the device core will<br /> automatically call spi_controller_put() again when the probe fails.<br /> This results in a double-free of the spi_controller structure.<br /> <br /> Fix this by switching to devm_spi_alloc_host() and removing the<br /> manual spi_controller_put() call.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.17 (including) 6.1.162 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.122 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.12.68 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.13 (including) 6.18.8 (excluding)
cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools