CVE-2026-43463 (GCVE-0-2026-43463)
Vulnerability from cvelistv5
Published
2026-05-08 14:22
Modified
2026-11-06 15:42
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer() rxrpc_kernel_lookup_peer() can also return error pointers in addition to NULL, so just checking for NULL is not sufficient. Fix this by: (1) Changing rxrpc_kernel_lookup_peer() to return -ENOMEM rather than NULL on allocation failure. (2) Making the callers in afs use IS_ERR() and PTR_ERR() to pass on the error code returned.
Impacted products
Vendor Product Version
Linux Linux Version: 72904d7b9bfbf2dd146254edea93958bc35bbbfe
Version: 72904d7b9bfbf2dd146254edea93958bc35bbbfe
Version: 72904d7b9bfbf2dd146254edea93958bc35bbbfe
Version: 72904d7b9bfbf2dd146254edea93958bc35bbbfe
Version: 056fc740be000d39a7dba700a935f3bbfbc664e6
Version: 6.7.3   ≤
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-43463",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-06T15:39:27.146019Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-06T15:42:55.893Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/afs/addr_list.c",
            "net/rxrpc/af_rxrpc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d854c93b12f2076c564f595b41b93b02fd42a0f9",
              "status": "affected",
              "version": "72904d7b9bfbf2dd146254edea93958bc35bbbfe",
              "versionType": "git"
            },
            {
              "lessThan": "d55fa7cd4b19ba91b34b307d769c149e56ad0a75",
              "status": "affected",
              "version": "72904d7b9bfbf2dd146254edea93958bc35bbbfe",
              "versionType": "git"
            },
            {
              "lessThan": "54331c5dcc6d97683d7ca2788e7ef9c9505e1477",
              "status": "affected",
              "version": "72904d7b9bfbf2dd146254edea93958bc35bbbfe",
              "versionType": "git"
            },
            {
              "lessThan": "4245a79003adf30e67f8e9060915bd05cb31d142",
              "status": "affected",
              "version": "72904d7b9bfbf2dd146254edea93958bc35bbbfe",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "056fc740be000d39a7dba700a935f3bbfbc664e6",
              "versionType": "git"
            },
            {
              "lessThan": "6.8",
              "status": "affected",
              "version": "6.7.3",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/afs/addr_list.c",
            "net/rxrpc/af_rxrpc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.114",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.9",
              "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": "6.12.114",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.19",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.9",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.7.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()\n\nrxrpc_kernel_lookup_peer() can also return error pointers in addition to\nNULL, so just checking for NULL is not sufficient.\n\nFix this by:\n\n (1) Changing rxrpc_kernel_lookup_peer() to return -ENOMEM rather than NULL\n     on allocation failure.\n\n (2) Making the callers in afs use IS_ERR() and PTR_ERR() to pass on the\n     error code returned."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:40:48.202Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d854c93b12f2076c564f595b41b93b02fd42a0f9"
        },
        {
          "url": "https://git.kernel.org/stable/c/d55fa7cd4b19ba91b34b307d769c149e56ad0a75"
        },
        {
          "url": "https://git.kernel.org/stable/c/54331c5dcc6d97683d7ca2788e7ef9c9505e1477"
        },
        {
          "url": "https://git.kernel.org/stable/c/4245a79003adf30e67f8e9060915bd05cb31d142"
        }
      ],
      "title": "rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43463",
    "datePublished": "2026-05-08T14:22:25.346Z",
    "dateReserved": "2026-05-01T14:12:56.010Z",
    "dateUpdated": "2026-11-06T15:42:55.893Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…