Infinite loop in Linux kernel - CVE-2026-98009
Published: September 28, 2026
Vulnerability identifier: #VU152460
CSH Severity: Low
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-98009
CWE-ID: CWE-835
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 validation of ETS quantum values in the ETS queuing discipline when configuring an ETS qdisc with crafted quantum values. A local user can configure a crafted ETS qdisc to cause a denial of service.
The issue requires CONFIG_NET_SCH_ETS and CAP_NET_ADMIN; namespace-local capabilities are sufficient.
Affected software
Linux kernel
How to mitigate CVE-2026-98009
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3