Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-43260
Published: May 7, 2026
Vulnerability identifier: #VU130462
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43260
CWE-ID: CWE-772
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource management in the bnxt_en RSS context delete logic when deleting RSS contexts during interface close and subsequent restoration. A local user can trigger repeated RSS context deletion and restoration cycles to cause a denial of service.
The issue can cause firmware VNIC resources to be leaked, and subsequent open operations may fail to restore active RSS contexts.
How to mitigate CVE-2026-43260
Install security update from vendor's repository.