CVE-2026-43030 HIGH

CVE-2026-43030: bpf: Fix regsafe() for pointers to packet

Vendor Linux
Product Linux
Published May 1, 2026
Last update May 23, 2026
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix regsafe() for pointers to packet In case rold->reg->range == BEYOND_PKT_END && rcur->reg->range == N regsafe() may return true which may lead to current state with valid packet range not being explored. Fix the bug.

Key dates

02Disclosure timeline

May 1, 2026 CVE published
May 23, 2026 Record updated