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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-43089 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: xfrm_user: fix info leak in build_mapping() struct xfrm_usersa_id has a one-byte padding hole after the proto field, which ends up never getting set to zero before copying out to userspace. Fix that up by zeroing out the whole structure before setting individual variables.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1beb76b2053b68c491b78370794b8ff63c8f8c02 kernel.org
https://git.kernel.org/stable/c/5a1a4b049ddde41466ccac0daeec326254b133f2 kernel.org
https://git.kernel.org/stable/c/700c9622b23c33b5933e6dcea816492c064e4e10 kernel.org
https://git.kernel.org/stable/c/d3125c541a96fb3c0fc7210112684baf22b6c24d kernel.org
https://git.kernel.org/stable/c/f779a6b6cdb6e12baa0663063ac59ab2a8f20c0c kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-43089
NVD Published Date:
05/06/2026
NVD Last Modified:
05/06/2026
Source:
kernel.org