CVE-2026-45932 HIGH

CVE-2026-45932: bpf: Fix tcx/netkit detach permissions when prog fd isn't given

Vendor Linux
Product Linux
Published May 27, 2026
Last update May 30, 2026

CVSS base score

7.3/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

What the vulnerability does

01Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix tcx/netkit detach permissions when prog fd isn't given This commit fixes a security issue where BPF_PROG_DETACH on tcx or netkit devices could be executed by any user when no program fd was provided, bypassing permission checks. The fix adds a capability check for CAP_NET_ADMIN or CAP_SYS_ADMIN in this case.

Key dates

02Disclosure timeline

May 27, 2026 CVE published
May 30, 2026 Record updated