Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-97616
Published: September 28, 2026
Vulnerability identifier: #VU152592
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97616
CWE-ID: CWE-772
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service by exhausting action IDs.
The vulnerability exists due to improper resource release in tcf_action_destroy() in net/sched/act_api.c when processing a batched RTM_NEWACTION request that replaces an existing action and a later action fails to initialize. A local user can submit a crafted batched RTM_NEWACTION request to cause a denial of service by exhausting action IDs.
Affected software
Linux kernel
How to mitigate CVE-2026-97616
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3