CVE-2026-23068

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

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/346775f2b4cf839177e8e86b94aa180a06dc15b0	Patch
https://git.kernel.org/stable/c/383d4f5cffcc8df930d95b06518a9d25a6d74aac	Patch
https://git.kernel.org/stable/c/417cdfd9b9f986e95bfcb1d68eb443e6e0a15f8c	Patch
https://git.kernel.org/stable/c/bddd3d10d039729b81cfb0804520c8832a701a0e	Patch
https://git.kernel.org/stable/c/f6d6b3f172df118db582fe5ec43ae223a55d99cf	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	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::::::

History

No history.

Information

Published : 2026-02-04 17:16

Updated : 2026-03-13 21:27

NVD link : CVE-2026-23068

Mitre link : CVE-2026-23068

CVE.ORG link : CVE-2026-23068

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-415

Double Free

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