ieee802154: Avoid calling WARN_ON() on -ENOMEM in cfg802154_switch_netns() (CVE-2026-80616) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-80616

ieee802154: Avoid calling WARN_ON() on -ENOMEM in cfg802154_switch_netns()

Answer in brief

CVE-2026-80616 records a Unknown severity vulnerability in ieee802154: Avoid calling WARN_ON() on -ENOMEM in cfg802154_switch_netns(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 28, 2026Updated Aug 28, 2026Source checked Aug 28, 2026First seen by HOL Aug 28, 2026Material review Aug 28, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=66e5c2672cd11b9310008099faf6a4ffb9dfb6d0 <f4860dd988b1041d70595f2ed84de80f90cb7ebc \|\| >=66e5c2672cd11b9310008099faf6a4ffb9dfb6d0 <6fcba77571c53f656a2f109259601a7570d4c74a \|\| >=66e5c2672cd11b9310008099faf6a4ffb9dfb6d0 <0569f67ed6a7af838e2141da93c68e6b6013f483	f4860dd988b1041d70595f2ed84de80f90cb7ebc, 6fcba77571c53f656a2f109259601a7570d4c74a, 0569f67ed6a7af838e2141da93c68e6b6013f483
Linux/Linuxgeneric	4.8	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to f4860dd988b1041d70595f2ed84de80f90cb7ebc if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 28, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.