Linux EUVD-2026-25564

| CVE-2026-31671 MEDIUM
Memory Leak (CWE-401)
2026-04-24 Linux GHSA-rv96-q2g6-r95w
Information Disclosure Linux
5.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
CVSS changed
Apr 27, 2026 - 20:22 NVD
5.5 (MEDIUM)
Patch available
Apr 24, 2026 - 16:16 EUVD

DescriptionNVD

In the Linux kernel, the following vulnerability has been resolved:

xfrm_user: fix info leak in build_report()

struct xfrm_user_report is a __u8 proto field followed by a struct xfrm_selector which means there is three "empty" bytes of padding, but the padding is never zeroed before copying to userspace. Fix that up by zeroing the structure before setting individual member variables.

Analysis

In the Linux kernel, the following vulnerability has been resolved: xfrm_user: fix info leak in build_report() struct xfrm_user_report is a __u8 proto field followed by a struct xfrm_selector which means there is three "empty" bytes of padding, but the padding is never zeroed before copying to userspace. Fix that up by zeroing the structure before setting individual member variables.

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EUVD-2026-25564 vulnerability details – vuln.today
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