VulnerabilityPublished 28 Aug 2026Updated 21 Oct 2026

CVE-2026-80616: Linux kernel · ieee802154: Avoid calling WARN_ON() on -ENOMEM in cfg802154_switch_netns()

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in f4860dd988b1041d70595f2ed84de80f90cb7ebc : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f4860dd988b1041d70595f2ed84de80f90cb7ebc, f300e68014cf10af9aa0c0ad958750a8509c8e44, c67e70202cfd602f86d3e59fe6fffecaf4110f40 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 28 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 66e5c2672cd11b9310008099faf6a4ffb9dfb6d0, < f4860dd988b1041d70595f2ed84de80f90cb7ebc	Fixed in f4860dd988b1041d70595f2ed84de80f90cb7ebc
LinuxLinux	Affected ≥ 66e5c2672cd11b9310008099faf6a4ffb9dfb6d0, < f300e68014cf10af9aa0c0ad958750a8509c8e44	Fixed in f300e68014cf10af9aa0c0ad958750a8509c8e44
LinuxLinux	Affected ≥ 66e5c2672cd11b9310008099faf6a4ffb9dfb6d0, < c67e70202cfd602f86d3e59fe6fffecaf4110f40	Fixed in c67e70202cfd602f86d3e59fe6fffecaf4110f40
LinuxLinux	Affected ≥ 66e5c2672cd11b9310008099faf6a4ffb9dfb6d0, < 0569f67ed6a7af838e2141da93c68e6b6013f483	Fixed in 0569f67ed6a7af838e2141da93c68e6b6013f483
LinuxLinux	Affected ≥ 66e5c2672cd11b9310008099faf6a4ffb9dfb6d0, < 6fcba77571c53f656a2f109259601a7570d4c74a	Fixed in 6fcba77571c53f656a2f109259601a7570d4c74a
LinuxLinux	Affected =4.8	Fixed in–

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.

References

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