Improper Check or Handling of Exceptional Conditions in Linux kernel - CVE-2026-98073
Published: September 28, 2026
Vulnerability identifier: #VU152385
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-98073
CWE-ID: CWE-703
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper handling of conflicting alternative interface names in __dev_change_net_namespace() when moving network devices from a dying network namespace. A local user can create network devices with identical alternative names in separate network namespaces and remove the non-root network namespace to trigger a kernel warning.
Affected software
Linux kernel
How to mitigate CVE-2026-98073
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3