Vulnerability-Lookup

GHSA-55J4-RV4X-VQMX

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33

Details

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

crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx

The bounce buffers are allocated with __get_free_pages() using BOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error path and nx842_crypto_free_ctx() release the buffers with free_page(). Use free_pages() with the matching order instead.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46068"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:27Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx\n\nThe bounce buffers are allocated with __get_free_pages() using\nBOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error\npath and nx842_crypto_free_ctx() release the buffers with free_page().\nUse free_pages() with the matching order instead.",
  "id": "GHSA-55j4-rv4x-vqmx",
  "modified": "2026-05-27T15:33:23Z",
  "published": "2026-05-27T15:33:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46068"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5c07962fed66e1238fad7635fa150570bd38b4c5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/80fd99d7c30ea889662d21f1b44d8fea4c83138d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/910bb34b801d39794e656f7d48414844b2bd354e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f17a4850d1ce7c11cba8b1830b9bfedfede878bb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-46068 (GCVE-0-2026-46068)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:57 – Updated: 2026-05-27 12:57

Title

crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx The bounce buffers are allocated with __get_free_pages() using BOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error path and nx842_crypto_free_ctx() release the buffers with free_page(). Use free_pages() with the matching order instead.

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/f17a4850d1ce7c11c…
https://git.kernel.org/stable/c/910bb34b801d39794…
https://git.kernel.org/stable/c/5c07962fed66e1238…
https://git.kernel.org/stable/c/80fd99d7c30ea8896…
https://git.kernel.org/stable/c/adb3faf2db1a66d0f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ed70b479c2c0b6e1319f0cb2de19f1051be219a4 , < f17a4850d1ce7c11cba8b1830b9bfedfede878bb (git) Affected: ed70b479c2c0b6e1319f0cb2de19f1051be219a4 , < 910bb34b801d39794e656f7d48414844b2bd354e (git) Affected: ed70b479c2c0b6e1319f0cb2de19f1051be219a4 , < 5c07962fed66e1238fad7635fa150570bd38b4c5 (git) Affected: ed70b479c2c0b6e1319f0cb2de19f1051be219a4 , < 80fd99d7c30ea889662d21f1b44d8fea4c83138d (git) Affected: ed70b479c2c0b6e1319f0cb2de19f1051be219a4 , < adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c (git)
Linux	Linux	Affected: 4.2 Unaffected: 0 , < 4.2 (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.27 , ≤ 6.18.* (semver) Unaffected: 7.0.4 , ≤ 7.0.* (semver) Unaffected: 7.1-rc1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/nx/nx-842.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f17a4850d1ce7c11cba8b1830b9bfedfede878bb",
              "status": "affected",
              "version": "ed70b479c2c0b6e1319f0cb2de19f1051be219a4",
              "versionType": "git"
            },
            {
              "lessThan": "910bb34b801d39794e656f7d48414844b2bd354e",
              "status": "affected",
              "version": "ed70b479c2c0b6e1319f0cb2de19f1051be219a4",
              "versionType": "git"
            },
            {
              "lessThan": "5c07962fed66e1238fad7635fa150570bd38b4c5",
              "status": "affected",
              "version": "ed70b479c2c0b6e1319f0cb2de19f1051be219a4",
              "versionType": "git"
            },
            {
              "lessThan": "80fd99d7c30ea889662d21f1b44d8fea4c83138d",
              "status": "affected",
              "version": "ed70b479c2c0b6e1319f0cb2de19f1051be219a4",
              "versionType": "git"
            },
            {
              "lessThan": "adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c",
              "status": "affected",
              "version": "ed70b479c2c0b6e1319f0cb2de19f1051be219a4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/nx/nx-842.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.2"
            },
            {
              "lessThan": "4.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.141",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "4.2",
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                },
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                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx\n\nThe bounce buffers are allocated with __get_free_pages() using\nBOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error\npath and nx842_crypto_free_ctx() release the buffers with free_page().\nUse free_pages() with the matching order instead."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:57:48.457Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f17a4850d1ce7c11cba8b1830b9bfedfede878bb"
        },
        {
          "url": "https://git.kernel.org/stable/c/910bb34b801d39794e656f7d48414844b2bd354e"
        },
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          "url": "https://git.kernel.org/stable/c/5c07962fed66e1238fad7635fa150570bd38b4c5"
        },
        {
          "url": "https://git.kernel.org/stable/c/80fd99d7c30ea889662d21f1b44d8fea4c83138d"
        },
        {
          "url": "https://git.kernel.org/stable/c/adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c"
        }
      ],
      "title": "crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46068",
    "datePublished": "2026-05-27T12:57:48.457Z",
    "dateReserved": "2026-05-13T15:03:33.095Z",
    "dateUpdated": "2026-05-27T12:57:48.457Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-55J4-RV4X-VQMX

CVE-2026-46068 (GCVE-0-2026-46068)

Tags

Sightings

Nomenclature