CVE-2026-64553 (GCVE-0-2026-64553)

Vulnerability from cvelistv5 – Published: 2026-07-27 20:10 – Updated: 2026-07-27 20:10
VLAI
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 open coding is missing clearing the pad, however, each netlink attr is padded to 4B and data_len may not be divisible by 4B.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 6ae0a6286171154661b74f7f550f9441c6008424 , < 0d3ea2ccddda442077fc44f11d873209c97ec50b (git)
Affected: 6ae0a6286171154661b74f7f550f9441c6008424 , < 7fe7e6949964aa8ee6305f09db2dc9eede977bb3 (git)
Affected: 6ae0a6286171154661b74f7f550f9441c6008424 , < e2fa322782a2d7d8078f7bb20817e0aa9f7c32e9 (git)
Affected: 6ae0a6286171154661b74f7f550f9441c6008424 , < befe1ebe7fc2c65c80074bc34ceeb0a721ed3cd2 (git)
Affected: 6ae0a6286171154661b74f7f550f9441c6008424 , < 48930f6c59fd0056c2de46ce52bfe27d9c9e5eb6 (git)
Affected: 6ae0a6286171154661b74f7f550f9441c6008424 , < a6cfb924ad74efce254e99c197d2e3863de70868 (git)
Affected: 6ae0a6286171154661b74f7f550f9441c6008424 , < 794a0d8bdbb39e083ed42caccb86d687a9b53570 (git)
Affected: 6ae0a6286171154661b74f7f550f9441c6008424 , < aedd02af1f8b0bceb7f42f5a21c41634ca9ed390 (git)
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Linux Linux Affected: 4.11
Unaffected: 0 , < 4.11 (semver)
Unaffected: 5.10.261 , ≤ 5.10.* (semver)
Unaffected: 5.15.212 , ≤ 5.15.* (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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          "product": "Linux",
          "programFiles": [
            "net/psample/psample.c"
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              "version": "0",
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              "version": "7.2-rc1",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: psample: fix info leak in PSAMPLE_ATTR_DATA\n\npsample open codes nla_put() presumably to avoid wiping\nthe data with 0s just to override it with packet data.\nThis open coding is missing clearing the pad, however,\neach netlink attr is padded to 4B and data_len may\nnot be divisible by 4B."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-27T20:10:41.159Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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      "title": "net: psample: fix info leak in PSAMPLE_ATTR_DATA",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64553",
    "datePublished": "2026-07-27T20:10:41.159Z",
    "dateReserved": "2026-07-19T15:36:31.796Z",
    "dateUpdated": "2026-07-27T20:10:41.159Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.