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

CVE-2026-80770 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-80770, released September 5, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-80770
- Priority: Routine
- CVSS: 4.0 (Moderate)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 4, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80770

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.187-1 | [DEBIAN-CVE-2026-80770](https://patchblox.com/security/data/fix/linux/debian-cve-2026-80770.md) | Sep 5, 2026 |
| Linux | linux Debian 13.5 (trixie) | 6.12.107-1 | [DEBIAN-CVE-2026-80770](https://patchblox.com/security/data/fix/linux/debian-cve-2026-80770.md) | Sep 5, 2026 |
| Linux | linux Debian 14 | 7.1.12-1 | [DEBIAN-CVE-2026-80770](https://patchblox.com/security/data/fix/linux/debian-cve-2026-80770.md) | Sep 5, 2026 |
| Linux | linux-6.12 Debian 12.15 (bookworm) | 6.12.107-1~deb12u1 | [DEBIAN-CVE-2026-80770](https://patchblox.com/security/data/fix/linux/debian-cve-2026-80770.md) | Sep 5, 2026 |

---

Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.