CVE-2023-52494 (GCVE-0-2023-52494)
Vulnerability from cvelistv5
Published
2024-02-29 15:52
Modified
2026-05-23 15:25
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Add alignment check for event ring read pointer Though we do check the event ring read pointer by "is_valid_ring_ptr" to make sure it is in the buffer range, but there is another risk the pointer may be not aligned. Since we are expecting event ring elements are 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer could lead to multiple issues like DoS or ring buffer memory corruption. So add a alignment check for event ring read pointer.
References
Impacted products
Vendor Product Version
Linux Linux Version: ec32332df7645e0ba463a08d483fe97665167071
Version: ec32332df7645e0ba463a08d483fe97665167071
Version: ec32332df7645e0ba463a08d483fe97665167071
Version: ec32332df7645e0ba463a08d483fe97665167071
Version: ec32332df7645e0ba463a08d483fe97665167071
Version: a1d2bd164c1c78f87968b7883964175ec41c32ae
Version: fd5f40fc887485a8b9a6806a640a0d8e0ef1afb6
Version: 76879a980cd5ede4cb9a638999fb80d37bc09db5
Version: 5.10.36   ≤
Version: 5.11.20   ≤
Version: 5.12.3   ≤
Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-52494",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-03-12T14:58:15.977989Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:23:07.781Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T23:03:20.652Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bus/mhi/host/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "94991728c84f8df54fd9eec9b85855ef9057ea08",
              "status": "affected",
              "version": "ec32332df7645e0ba463a08d483fe97665167071",
              "versionType": "git"
            },
            {
              "lessThan": "2df39ac8f813860f79782807c3f7acff40b3c551",
              "status": "affected",
              "version": "ec32332df7645e0ba463a08d483fe97665167071",
              "versionType": "git"
            },
            {
              "lessThan": "a9ebfc405fe1be145f414eafadcbf09506082010",
              "status": "affected",
              "version": "ec32332df7645e0ba463a08d483fe97665167071",
              "versionType": "git"
            },
            {
              "lessThan": "ecf8320111822a1ae5d5fc512953eab46d543d0b",
              "status": "affected",
              "version": "ec32332df7645e0ba463a08d483fe97665167071",
              "versionType": "git"
            },
            {
              "lessThan": "eff9704f5332a13b08fbdbe0f84059c9e7051d5f",
              "status": "affected",
              "version": "ec32332df7645e0ba463a08d483fe97665167071",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a1d2bd164c1c78f87968b7883964175ec41c32ae",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "fd5f40fc887485a8b9a6806a640a0d8e0ef1afb6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "76879a980cd5ede4cb9a638999fb80d37bc09db5",
              "versionType": "git"
            },
            {
              "lessThan": "5.11",
              "status": "affected",
              "version": "5.10.36",
              "versionType": "semver"
            },
            {
              "lessThan": "5.12",
              "status": "affected",
              "version": "5.11.20",
              "versionType": "semver"
            },
            {
              "lessThan": "5.13",
              "status": "affected",
              "version": "5.12.3",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/bus/mhi/host/main.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": "5.15.149",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.76",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.15",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.3",
              "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": "5.15.149",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.76",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.15",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7.3",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.10.36",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.11.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.12.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: mhi: host: Add alignment check for event ring read pointer\n\nThough we do check the event ring read pointer by \"is_valid_ring_ptr\"\nto make sure it is in the buffer range, but there is another risk the\npointer may be not aligned.  Since we are expecting event ring elements\nare 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer\ncould lead to multiple issues like DoS or ring buffer memory corruption.\n\nSo add a alignment check for event ring read pointer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:25:42.645Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08"
        },
        {
          "url": "https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551"
        },
        {
          "url": "https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010"
        },
        {
          "url": "https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b"
        },
        {
          "url": "https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f"
        }
      ],
      "title": "bus: mhi: host: Add alignment check for event ring read pointer",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52494",
    "datePublished": "2024-02-29T15:52:11.674Z",
    "dateReserved": "2024-02-20T12:30:33.304Z",
    "dateUpdated": "2026-05-23T15:25:42.645Z",
    "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.