# CVE-2026-80616: ieee802154: Avoid calling WARN_ON() on -ENOMEM in cfg802154_switch_netns()

CVE-2026-80616 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-80616, released August 29, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2026-80616
- Priority: Urgent
- CVSS: 9.8 (Critical)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 28, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80616

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.115-2 | [DEBIAN-CVE-2026-80616](https://patchblox.com/security/data/fix/linux/debian-cve-2026-80616.md) | Aug 29, 2026 |
| Linux | linux Debian 14 | 7.1.5-1 | [DEBIAN-CVE-2026-80616](https://patchblox.com/security/data/fix/linux/debian-cve-2026-80616.md) | Aug 29, 2026 |

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Data as of 2026-11-09T07:25:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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