Resource exhaustion in Linux kernel - CVE-2026-97613
Published: September 28, 2026
Vulnerability identifier: #VU152589
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97613
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper completion queue sizing in the MANA network driver's RX completion queue when processing receive completions while the queue is full. A remote attacker can cause the receive completion queue to become full while a fence completion is pending to cause a denial of service.
The dropped fence completion can cause the driver to hold the RTNL lock for the timeout duration.
Affected software
Linux kernel
How to mitigate CVE-2026-97613
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3