CVE-2023-52439 (GCVE-0-2023-52439)
Vulnerability from cvelistv5
Published
2024-02-20 18:34
Modified
2026-05-23 15:25
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: uio: Fix use-after-free in uio_open core-1 core-2 ------------------------------------------------------- uio_unregister_device uio_open idev = idr_find() device_unregister(&idev->dev) put_device(&idev->dev) uio_device_release get_device(&idev->dev) kfree(idev) uio_free_minor(minor) uio_release put_device(&idev->dev) kfree(idev) ------------------------------------------------------- In the core-1 uio_unregister_device(), the device_unregister will kfree idev when the idev->dev kobject ref is 1. But after core-1 device_unregister, put_device and before doing kfree, the core-2 may get_device. Then: 1. After core-1 kfree idev, the core-2 will do use-after-free for idev. 2. When core-2 do uio_release and put_device, the idev will be double freed. To address this issue, we can get idev atomic & inc idev reference with minor_lock.
References
Impacted products
Vendor Product Version
Linux Linux Version: 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9
Version: 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9
Version: 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9
Version: 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9
Version: 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9
Version: 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9
Version: 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9
Version: 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9
Version: 13af019c87f2d90e663742cb1a819834048842ae
Version: 4.14.100   ≤
Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-12-27T16:03:00.894Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/3174e0f7de1ba392dc191625da83df02d695b60c"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/e93da893d52d82d57fc0db2ca566024e0f26ff50"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/5e0be1229ae199ebb90b33102f74a0f22d152570"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/5cf604ee538ed0c467abe3b4cda5308a6398f0f7"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/17a8519cb359c3b483fb5c7367efa9a8a508bdea"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/35f102607054faafe78d2a6994b18d5d9d6e92ad"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/913205930da6213305616ac539447702eaa85e41"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/0c9ae0b8605078eafc3bea053cc78791e97ba2e2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
          },
          {
            "url": "https://security.netapp.com/advisory/ntap-20241227-0006/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-52439",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:02:55.773038Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:35.621Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/uio/uio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3174e0f7de1ba392dc191625da83df02d695b60c",
              "status": "affected",
              "version": "57c5f4df0a5a0ee83df799991251e2ee93a5e4e9",
              "versionType": "git"
            },
            {
              "lessThan": "e93da893d52d82d57fc0db2ca566024e0f26ff50",
              "status": "affected",
              "version": "57c5f4df0a5a0ee83df799991251e2ee93a5e4e9",
              "versionType": "git"
            },
            {
              "lessThan": "5e0be1229ae199ebb90b33102f74a0f22d152570",
              "status": "affected",
              "version": "57c5f4df0a5a0ee83df799991251e2ee93a5e4e9",
              "versionType": "git"
            },
            {
              "lessThan": "5cf604ee538ed0c467abe3b4cda5308a6398f0f7",
              "status": "affected",
              "version": "57c5f4df0a5a0ee83df799991251e2ee93a5e4e9",
              "versionType": "git"
            },
            {
              "lessThan": "17a8519cb359c3b483fb5c7367efa9a8a508bdea",
              "status": "affected",
              "version": "57c5f4df0a5a0ee83df799991251e2ee93a5e4e9",
              "versionType": "git"
            },
            {
              "lessThan": "35f102607054faafe78d2a6994b18d5d9d6e92ad",
              "status": "affected",
              "version": "57c5f4df0a5a0ee83df799991251e2ee93a5e4e9",
              "versionType": "git"
            },
            {
              "lessThan": "913205930da6213305616ac539447702eaa85e41",
              "status": "affected",
              "version": "57c5f4df0a5a0ee83df799991251e2ee93a5e4e9",
              "versionType": "git"
            },
            {
              "lessThan": "0c9ae0b8605078eafc3bea053cc78791e97ba2e2",
              "status": "affected",
              "version": "57c5f4df0a5a0ee83df799991251e2ee93a5e4e9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "13af019c87f2d90e663742cb1a819834048842ae",
              "versionType": "git"
            },
            {
              "lessThan": "4.15",
              "status": "affected",
              "version": "4.14.100",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/uio/uio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.18"
            },
            {
              "lessThan": "4.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.306",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.268",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.74",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.306",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.268",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.209",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.148",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.74",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.13",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7.1",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8",
                  "versionStartIncluding": "4.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.14.100",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nuio: Fix use-after-free in uio_open\n\ncore-1\t\t\t\tcore-2\n-------------------------------------------------------\nuio_unregister_device\t\tuio_open\n\t\t\t\tidev = idr_find()\ndevice_unregister(\u0026idev-\u003edev)\nput_device(\u0026idev-\u003edev)\nuio_device_release\n\t\t\t\tget_device(\u0026idev-\u003edev)\nkfree(idev)\nuio_free_minor(minor)\n\t\t\t\tuio_release\n\t\t\t\tput_device(\u0026idev-\u003edev)\n\t\t\t\tkfree(idev)\n-------------------------------------------------------\n\nIn the core-1 uio_unregister_device(), the device_unregister will kfree\nidev when the idev-\u003edev kobject ref is 1. But after core-1\ndevice_unregister, put_device and before doing kfree, the core-2 may\nget_device. Then:\n1. After core-1 kfree idev, the core-2 will do use-after-free for idev.\n2. When core-2 do uio_release and put_device, the idev will be double\n   freed.\n\nTo address this issue, we can get idev atomic \u0026 inc idev reference with\nminor_lock."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:25:29.557Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3174e0f7de1ba392dc191625da83df02d695b60c"
        },
        {
          "url": "https://git.kernel.org/stable/c/e93da893d52d82d57fc0db2ca566024e0f26ff50"
        },
        {
          "url": "https://git.kernel.org/stable/c/5e0be1229ae199ebb90b33102f74a0f22d152570"
        },
        {
          "url": "https://git.kernel.org/stable/c/5cf604ee538ed0c467abe3b4cda5308a6398f0f7"
        },
        {
          "url": "https://git.kernel.org/stable/c/17a8519cb359c3b483fb5c7367efa9a8a508bdea"
        },
        {
          "url": "https://git.kernel.org/stable/c/35f102607054faafe78d2a6994b18d5d9d6e92ad"
        },
        {
          "url": "https://git.kernel.org/stable/c/913205930da6213305616ac539447702eaa85e41"
        },
        {
          "url": "https://git.kernel.org/stable/c/0c9ae0b8605078eafc3bea053cc78791e97ba2e2"
        }
      ],
      "title": "uio: Fix use-after-free in uio_open",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52439",
    "datePublished": "2024-02-20T18:34:49.323Z",
    "dateReserved": "2024-02-20T12:30:33.291Z",
    "dateUpdated": "2026-05-23T15:25:29.557Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.