CVE-2026-43426

In the Linux kernel, the following vulnerability has been resolved: usb: renesas_usbhs: fix use-after-free in ISR during device removal In usbhs_remove(), the driver frees resources (including the pipe array) while the interrupt handler (usbhs_interrupt) is still registered. If an interrupt fires after usbhs_pipe_remove() but before the driver is fully unbound, the ISR may access freed memory, causing a use-after-free. Fix this by calling devm_free_irq() before freeing resources. This ensures the interrupt handler is both disabled and synchronized (waits for any running ISR to complete) before usbhs_pipe_remove() is called.

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/0b7d11fd6e742ecc0b1eca44b4f0b93140c74bae	Patch
https://git.kernel.org/stable/c/1899edac312ef17a7234851686e8a703f56d0a84	Patch
https://git.kernel.org/stable/c/3cbc242b88c607f55da3d0d0d336b49bf1e20412	Patch
https://git.kernel.org/stable/c/51afaf919bbaacdd9cc9e146033ae0a743a42dd7	Patch
https://git.kernel.org/stable/c/6287e0c01ccb818e7214f88d885ffb7c9e81b0e0	Patch
https://git.kernel.org/stable/c/6ffe44f022c95b1b29c691d2169c5abc046f7580	Patch
https://git.kernel.org/stable/c/9c6159d5b72d5fc265cce5da04f27d730b552e69	Patch
https://git.kernel.org/stable/c/c7012fc73dab4829404fedeeaa8531f12ac8545f	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::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc3::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc4::::::

History

No history.

Information

Published : 2026-05-08 15:16

Updated : 2026-06-17 10:49

NVD link : CVE-2026-43426

Mitre link : CVE-2026-43426

CVE.ORG link : CVE-2026-43426

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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array)\nwhile the interrupt handler (usbhs_interrupt) is still registered. If an\ninterrupt fires after usbhs_pipe_remove() but before the driver is fully\nunbound, the ISR may access freed memory, causing a use-after-free.\n\nFix this by calling devm_free_irq() before freeing resources. 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