---
id: CVE-2026-64553
title: 'net: psample: fix info leak in PSAMPLE_ATTR_DATA'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: psample: fix info leak in PSAMPLE_ATTR_DATA

  psample open codes nla_put() presumably to avoid wiping
  the data with 0s just to override it with packet data.
  This op…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 <
    0d3ea2ccddda442077fc44f11d873209c97ec50b
  - >-
    Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 <
    7fe7e6949964aa8ee6305f09db2dc9eede977bb3
  - >-
    Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 <
    e2fa322782a2d7d8078f7bb20817e0aa9f7c32e9
  - >-
    Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 <
    befe1ebe7fc2c65c80074bc34ceeb0a721ed3cd2
  - >-
    Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 <
    48930f6c59fd0056c2de46ce52bfe27d9c9e5eb6
  - >-
    Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 <
    a6cfb924ad74efce254e99c197d2e3863de70868
  - >-
    Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 <
    794a0d8bdbb39e083ed42caccb86d687a9b53570
  - >-
    Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 <
    aedd02af1f8b0bceb7f42f5a21c41634ca9ed390
  - Linux 4.11
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T16:41:25.606986Z'
published: '2026-07-27'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T16:44:57.166Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-64553'
references:
  - url: 'https://git.kernel.org/stable/c/0d3ea2ccddda442077fc44f11d873209c97ec50b'
  - url: 'https://git.kernel.org/stable/c/7fe7e6949964aa8ee6305f09db2dc9eede977bb3'
  - url: 'https://git.kernel.org/stable/c/e2fa322782a2d7d8078f7bb20817e0aa9f7c32e9'
  - url: 'https://git.kernel.org/stable/c/befe1ebe7fc2c65c80074bc34ceeb0a721ed3cd2'
  - url: 'https://git.kernel.org/stable/c/48930f6c59fd0056c2de46ce52bfe27d9c9e5eb6'
  - url: 'https://git.kernel.org/stable/c/a6cfb924ad74efce254e99c197d2e3863de70868'
  - url: 'https://git.kernel.org/stable/c/794a0d8bdbb39e083ed42caccb86d687a9b53570'
  - url: 'https://git.kernel.org/stable/c/aedd02af1f8b0bceb7f42f5a21c41634ca9ed390'
tags:
  - cve.org
epss: 0.00177
epssPercentile: 0.07258
ingestedAt: '2026-11-06T16:57:43.154Z'
---

## Overview

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

net: psample: fix info leak in PSAMPLE_ATTR_DATA

psample open codes nla_put() presumably to avoid wiping
the data with 0s just to override it with packet data.
This open coding is missing clearing the pad, however,
each netlink attr is padded to 4B and data_len may
not be divisible by 4B.

## Affected

- `Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 < 0d3ea2ccddda442077fc44f11d873209c97ec50b`
- `Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 < 7fe7e6949964aa8ee6305f09db2dc9eede977bb3`
- `Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 < e2fa322782a2d7d8078f7bb20817e0aa9f7c32e9`
- `Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 < befe1ebe7fc2c65c80074bc34ceeb0a721ed3cd2`
- `Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 < 48930f6c59fd0056c2de46ce52bfe27d9c9e5eb6`
- `Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 < a6cfb924ad74efce254e99c197d2e3863de70868`
- `Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 < 794a0d8bdbb39e083ed42caccb86d687a9b53570`
- `Linux >= 6ae0a6286171154661b74f7f550f9441c6008424 < aedd02af1f8b0bceb7f42f5a21c41634ca9ed390`
- `Linux 4.11`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.