Vulnerability-Lookup

FKIE_CVE-2026-31431

Vulnerability from fkie_nvd - Published: 2026-04-22 09:16 - Updated: 2026-04-23 16:17

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4f6237
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: algif_aead - Revert to operating out-of-place\n\nThis mostly reverts commit 72548b093ee3 except for the copying of\nthe associated data.\n\nThere is no benefit in operating in-place in algif_aead since the\nsource and destination come from different mappings.  Get rid of\nall the complexity added for in-place operation and just copy the\nAD directly."
    }
  ],
  "id": "CVE-2026-31431",
  "lastModified": "2026-04-23T16:17:41.280",
  "metrics": {},
  "published": "2026-04-22T09:16:21.270",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4f6237"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-31431 (GCVE-0-2026-31431)

Vulnerability from cvelistv5 – Published: 2026-04-22 08:15 – Updated: 2026-04-22 08:15

Title

crypto: algif_aead - Revert to operating out-of-place

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/fafe0fa2995a0f707…
	https://git.kernel.org/stable/c/ce42ee423e58dffa5…
	https://git.kernel.org/stable/c/a664bf3d603dc3bdc…

Impacted products

Vendor

Product

Version

Linux

Affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 , < fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8 (git)
Affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 , < ce42ee423e58dffa5ec03524054c9d8bfd4f6237 (git)
Affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 , < a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5 (git)

Linux

Affected: 4.14
Unaffected: 0 , < 4.14 (semver)
Unaffected: 6.18.22 , ≤ 6.18.* (semver)
Unaffected: 6.19.12 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "crypto/af_alg.c",
            "crypto/algif_aead.c",
            "crypto/algif_skcipher.c",
            "include/crypto/if_alg.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8",
              "status": "affected",
              "version": "72548b093ee38a6d4f2a19e6ef1948ae05c181f7",
              "versionType": "git"
            },
            {
              "lessThan": "ce42ee423e58dffa5ec03524054c9d8bfd4f6237",
              "status": "affected",
              "version": "72548b093ee38a6d4f2a19e6ef1948ae05c181f7",
              "versionType": "git"
            },
            {
              "lessThan": "a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5",
              "status": "affected",
              "version": "72548b093ee38a6d4f2a19e6ef1948ae05c181f7",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "crypto/af_alg.c",
            "crypto/algif_aead.c",
            "crypto/algif_skcipher.c",
            "include/crypto/if_alg.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.14"
            },
            {
              "lessThan": "4.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.22",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.22",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.12",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: algif_aead - Revert to operating out-of-place\n\nThis mostly reverts commit 72548b093ee3 except for the copying of\nthe associated data.\n\nThere is no benefit in operating in-place in algif_aead since the\nsource and destination come from different mappings.  Get rid of\nall the complexity added for in-place operation and just copy the\nAD directly."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-22T08:15:10.123Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8"
        },
        {
          "url": "https://git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4f6237"
        },
        {
          "url": "https://git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5"
        }
      ],
      "title": "crypto: algif_aead - Revert to operating out-of-place",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31431",
    "datePublished": "2026-04-22T08:15:10.123Z",
    "dateReserved": "2026-03-09T15:48:24.089Z",
    "dateUpdated": "2026-04-22T08:15:10.123Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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

FKIE_CVE-2026-31431

CVE-2026-31431 (GCVE-0-2026-31431)

Tags

Sightings

Nomenclature