What’s Vulnerable › Vulnerabilities

CVE-2026-80770: HID: nintendo: stop device IO before hid_hw_stop on probe failure

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-04 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: HID: nintendo: stop device IO before hid_hw_stop on probe failure nintendo_hid_probe() calls hid_device_io_start() before joycon_init() and joycon_leds_create(). If either fails, the error path jumps to err_close which calls hid_hw_close()/hid_hw_stop() without first calling hid_device_io_stop(). hid_hw_stop() does not stop device IO, so hid_input_report() may still run and access driver data that is being torn down, resulting in a use-after-free. Add an err_io_stop label that calls hid_device_io_stop() before hid_hw_close(), and point the two post-io_start error paths at it.

Affected products

• Linux kernel: 5.16 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/03a84f9f88b42cd49752ec0259922b67e4b88598
• https://git.kernel.org/stable/c/13a3edf96568a0b7aacadea07c2adec53ac8f630
• https://git.kernel.org/stable/c/1f74d3bff6fe04a64e02ab3661d2e0d554565aa6
• https://git.kernel.org/stable/c/2e0d98dc8a6dea5fc2b72bf66e0dcbd5488644b4
• https://git.kernel.org/stable/c/5efcd7bbfaaec67d137c99aa0940fa34375db27f
• https://git.kernel.org/stable/c/c023443f0e6cfd257846b6515c93c1ea08026593
• https://git.kernel.org/stable/c/c2f3d51c7f5222f5b51e0c90f02258d82e1b44dd

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