Vulnerability-Lookup

FKIE_CVE-2026-31643

Vulnerability from fkie_nvd - Published: 2026-04-24 15:16 - Updated: 2026-04-24 17:51

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix key parsing memleak In rxrpc_preparse_xdr_yfs_rxgk(), the memory attached to token->rxgk can be leaked in a few error paths after it's allocated. Fix this by freeing it in the "reject_token:" case.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/01f51318feb626deee1d0c8a190198cd7857d599
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b555912b9b21075e8298015f888ffe3ff60b1a97
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d5f76f812d2c0ea6dd651b0586be49e85ecca085

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix key parsing memleak\n\nIn rxrpc_preparse_xdr_yfs_rxgk(), the memory attached to token-\u003erxgk can be\nleaked in a few error paths after it\u0027s allocated.\n\nFix this by freeing it in the \"reject_token:\" case."
    }
  ],
  "id": "CVE-2026-31643",
  "lastModified": "2026-04-24T17:51:40.810",
  "metrics": {},
  "published": "2026-04-24T15:16:43.673",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/01f51318feb626deee1d0c8a190198cd7857d599"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b555912b9b21075e8298015f888ffe3ff60b1a97"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d5f76f812d2c0ea6dd651b0586be49e85ecca085"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-31643 (GCVE-0-2026-31643)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:44 – Updated: 2026-04-24 14:44

Title

rxrpc: Fix key parsing memleak

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/d5f76f812d2c0ea6d…
	https://git.kernel.org/stable/c/01f51318feb626dee…
	https://git.kernel.org/stable/c/b555912b9b21075e8…

Impacted products

Vendor

Product

Version

Linux

Affected: 0ca100ff4df64f5d0f6c1dd5080c3e096786bea6 , < d5f76f812d2c0ea6dd651b0586be49e85ecca085 (git)
Affected: 0ca100ff4df64f5d0f6c1dd5080c3e096786bea6 , < 01f51318feb626deee1d0c8a190198cd7857d599 (git)
Affected: 0ca100ff4df64f5d0f6c1dd5080c3e096786bea6 , < b555912b9b21075e8298015f888ffe3ff60b1a97 (git)

Linux

Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.18.23 , ≤ 6.18.* (semver)
Unaffected: 6.19.13 , ≤ 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": [
            "net/rxrpc/key.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d5f76f812d2c0ea6dd651b0586be49e85ecca085",
              "status": "affected",
              "version": "0ca100ff4df64f5d0f6c1dd5080c3e096786bea6",
              "versionType": "git"
            },
            {
              "lessThan": "01f51318feb626deee1d0c8a190198cd7857d599",
              "status": "affected",
              "version": "0ca100ff4df64f5d0f6c1dd5080c3e096786bea6",
              "versionType": "git"
            },
            {
              "lessThan": "b555912b9b21075e8298015f888ffe3ff60b1a97",
              "status": "affected",
              "version": "0ca100ff4df64f5d0f6c1dd5080c3e096786bea6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/rxrpc/key.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.13",
              "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": "6.18.23",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.13",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix key parsing memleak\n\nIn rxrpc_preparse_xdr_yfs_rxgk(), the memory attached to token-\u003erxgk can be\nleaked in a few error paths after it\u0027s allocated.\n\nFix this by freeing it in the \"reject_token:\" case."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-24T14:44:57.540Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d5f76f812d2c0ea6dd651b0586be49e85ecca085"
        },
        {
          "url": "https://git.kernel.org/stable/c/01f51318feb626deee1d0c8a190198cd7857d599"
        },
        {
          "url": "https://git.kernel.org/stable/c/b555912b9b21075e8298015f888ffe3ff60b1a97"
        }
      ],
      "title": "rxrpc: Fix key parsing memleak",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31643",
    "datePublished": "2026-04-24T14:44:57.540Z",
    "dateReserved": "2026-03-09T15:48:24.127Z",
    "dateUpdated": "2026-04-24T14:44:57.540Z",
    "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-2026-31643

CVE-2026-31643 (GCVE-0-2026-31643)

Tags

Sightings

Nomenclature