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CVE-2022-48861 (GCVE-0-2022-48861)

Vulnerability from cvelistv5 – Published: 2024-07-16 12:25 – Updated: 2026-05-11 18:48
VLAI
Title
vdpa: fix use-after-free on vp_vdpa_remove
Summary
In the Linux kernel, the following vulnerability has been resolved: vdpa: fix use-after-free on vp_vdpa_remove When vp_vdpa driver is unbind, vp_vdpa is freed in vdpa_unregister_device and then vp_vdpa->mdev.pci_dev is dereferenced in vp_modern_remove, triggering use-after-free. Call Trace of unbinding driver free vp_vdpa : do_syscall_64 vfs_write kernfs_fop_write_iter device_release_driver_internal pci_device_remove vp_vdpa_remove vdpa_unregister_device kobject_release device_release kfree Call Trace of dereference vp_vdpa->mdev.pci_dev: vp_modern_remove pci_release_selected_regions pci_release_region pci_resource_len pci_resource_end (dev)->resource[(bar)].end
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:25 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 64b9f64f80a6f4b7ea51bf0510119cb15e801dc6 , < 4b1743bc715a3691a63ac21b349079b07bf1b19e (git)
Affected: 64b9f64f80a6f4b7ea51bf0510119cb15e801dc6 , < dc54ba9932aeaaa1a21fe214af1f446593a78274 (git)
Affected: 64b9f64f80a6f4b7ea51bf0510119cb15e801dc6 , < eb057b44dbe35ae14527830236a92f51de8f9184 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.13
Unaffected: 0 , < 5.13 (semver)
Unaffected: 5.15.29 , ≤ 5.15.* (semver)
Unaffected: 5.16.15 , ≤ 5.16.* (semver)
Unaffected: 5.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-02-02T10:57:47+00:00",
      "cve": "CVE-2022-48861",
      "id": "CVE-2022-48861",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "156",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: vdpa: fix use-after-free on vp_vdpa_remove",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-48861.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T16:56:09Z",
      "cve": "CVE-2022-48861",
      "id": "CVE-2022-48861",
      "initial_release_date": "2024-07-18T03:05:30Z",
      "product_status:known_affected": "295",
      "product_status:known_not_affected": "254",
      "product_status:recommended": "426",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-48861",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-48861.json",
      "version": "46"
    },
    "vulnrichment": {
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        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-03T15:25:01.773Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "references": [
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              },
              {
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                "url": "https://git.kernel.org/stable/c/dc54ba9932aeaaa1a21fe214af1f446593a78274"
              },
              {
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                ],
                "url": "https://git.kernel.org/stable/c/eb057b44dbe35ae14527830236a92f51de8f9184"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2022-48861",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-09-10T16:25:32.248865Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-09-11T12:42:20.788Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/vdpa/virtio_pci/vp_vdpa.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
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              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/vdpa/virtio_pci/vp_vdpa.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.13"
                },
                {
                  "lessThan": "5.13",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.29",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.16.*",
                  "status": "unaffected",
                  "version": "5.16.15",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.17",
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              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
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                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                      "versionStartIncluding": "5.13",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.16.15",
                      "versionStartIncluding": "5.13",
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                    },
                    {
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                  "negate": false,
                  "operator": "OR"
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          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa: fix use-after-free on vp_vdpa_remove\n\nWhen vp_vdpa driver is unbind, vp_vdpa is freed in vdpa_unregister_device\nand then vp_vdpa-\u003emdev.pci_dev is dereferenced in vp_modern_remove,\ntriggering use-after-free.\n\nCall Trace of unbinding driver free vp_vdpa :\ndo_syscall_64\n  vfs_write\n    kernfs_fop_write_iter\n      device_release_driver_internal\n        pci_device_remove\n          vp_vdpa_remove\n            vdpa_unregister_device\n              kobject_release\n                device_release\n                  kfree\n\nCall Trace of dereference vp_vdpa-\u003emdev.pci_dev:\nvp_modern_remove\n  pci_release_selected_regions\n    pci_release_region\n      pci_resource_len\n        pci_resource_end\n          (dev)-\u003eresource[(bar)].end"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T08:24:55.147Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
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            {
              "url": "https://git.kernel.org/stable/c/dc54ba9932aeaaa1a21fe214af1f446593a78274"
            },
            {
              "url": "https://git.kernel.org/stable/c/eb057b44dbe35ae14527830236a92f51de8f9184"
            }
          ],
          "title": "vdpa: fix use-after-free on vp_vdpa_remove",
          "x_generator": {
            "engine": "bippy-1.2.0"
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        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-48861",
        "datePublished": "2024-07-16T12:25:25.160Z",
        "dateReserved": "2024-07-16T11:38:08.920Z",
        "dateUpdated": "2025-05-04T08:24:55.147Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.