# CVE-2022-50876: linux: In the Linux kernel, the following vulnerability has been resolved:  usb: musb: Fix musb_gadget.c rxstate overflow bu...

CVE-2022-50876 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50876, released December 30, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-50876
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0023
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 30, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  usb: musb: Fix musb_gadget.c rxstate overflow bug  The usb function device call musb_gadget_queue() adds the passed request to musb_ep::req_list,If the (request->length > musb_ep->packet_sz) and (is_buffer_mapped(req) return false),the rxstate() will copy all data in fifo to request->buf which may cause request->buf out of bounds.  Fix it by add the length check : fifocnt = min_t(unsigned, request->length - request->actual, fifocnt);

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.0.3-1 | [DEBIAN-CVE-2022-50876](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50876.md) | Dec 30, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.0.3-1 | [DEBIAN-CVE-2022-50876](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50876.md) | Dec 30, 2025 |
| Linux | linux Debian 14 | 6.0.3-1 | [DEBIAN-CVE-2022-50876](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50876.md) | Dec 30, 2025 |

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