What’s Vulnerable › Vulnerabilities

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

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-28 · updated 2026-10-30

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.

Affected products

• Linux: 4.8 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0569f67ed6a7af838e2141da93c68e6b6013f483
• https://git.kernel.org/stable/c/6fcba77571c53f656a2f109259601a7570d4c74a
• 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

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