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CVE-2026-43426

usb: renesas_usbhs: fix use-after-free in ISR during device removal PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 before c7012fc73dab4829404fedeeaa8531f12ac8545f; affected f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 before 51afaf919bbaacdd9cc9e146033ae0a743a42dd7; affected f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 before 1899edac312ef17a7234851686e8a703f56d0a84; affected f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 before 9c6159d5b72d5fc265cce5da04f27d730b552e69; affected f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 before 6287e0c01ccb818e7214f88d885ffb7c9e81b0e0; affected f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 before 0b7d11fd6e742ecc0b1eca44b4f0b93140c74bae; affected f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 before 6ffe44f022c95b1b29c691d2169c5abc046f7580; affected f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 before 3cbc242b88c607f55da3d0d0d336b49bf1e20412
Linux / Linuxaffected 3.0; unaffected 0 before 3.0; unaffected 5.10.253 through 5.10.*; unaffected 5.15.203 through 5.15.*; unaffected 6.1.167 through 6.1.*; unaffected 6.6.130 through 6.6.*; unaffected 6.12.78 through 6.12.*; unaffected 6.18.19 through 6.18.*; unaffected 6.19.9 through 6.19.*; unaffected 7.0 through *

CWE

No CWE identifiers supplied.

References