# CVE-2022-50568: linux: In the Linux kernel, the following vulnerability has been resolved:  usb: gadget: f_hid: fix f_hidg lifetime vs cdev...

CVE-2022-50568 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50568, released October 22, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-50568
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 22, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  usb: gadget: f_hid: fix f_hidg lifetime vs cdev  The embedded struct cdev does not have its lifetime correctly tied to the enclosing struct f_hidg, so there is a use-after-free if /dev/hidgN is held open while the gadget is deleted.  This can readily be replicated with libusbgx's example programs (for conciseness - operating directly via configfs is equivalent):  	gadget-hid 	exec 3<> /dev/hidg0 	gadget-vid-pid-remove 	exec 3<&-  Pull the existing device up in to struct f_hidg and make use of the cdev_device_{add,del}() helpers.  This changes the lifetime of the device object to match struct f_hidg, but note that it is still added and deleted at the same time.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.4-1 | [DEBIAN-CVE-2022-50568](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50568.md) | Oct 22, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.1.4-1 | [DEBIAN-CVE-2022-50568](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50568.md) | Oct 22, 2025 |
| Linux | linux Debian 14 | 6.1.4-1 | [DEBIAN-CVE-2022-50568](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50568.md) | Oct 22, 2025 |

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