CVE-2023-53389 (GCVE-0-2023-53389)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-01-14 19:03
VLAI?
Title
drm/mediatek: dp: Only trigger DRM HPD events if bridge is attached
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: dp: Only trigger DRM HPD events if bridge is attached The MediaTek DisplayPort interface bridge driver starts its interrupts as soon as its probed. However when the interrupts trigger the bridge might not have been attached to a DRM device. As drm_helper_hpd_irq_event() does not check whether the passed in drm_device is valid or not, a NULL pointer passed in results in a kernel NULL pointer dereference in it. Check whether the bridge is attached and only trigger an HPD event if it is.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b , < 6524d3d58797975cc40b85be1e9b89721b4e8d0b (git)
Affected: f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b , < 3551789d0635dfb2df8ab8e7fdbf0647e9c1724c (git)
Affected: f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b , < d1c04e338016ae2517c641806a831b1f3eee2bed (git)
Affected: f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b , < 36b617f7e4ae663fcadd202ea061ca695ca75539 (git)
Create a notification for this product.
    Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.1.28 , ≤ 6.1.* (semver)
Unaffected: 6.2.15 , ≤ 6.2.* (semver)
Unaffected: 6.3.2 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-53389",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:58:37.692355Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-476",
                "description": "CWE-476 NULL Pointer Dereference",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-14T19:03:05.329Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/mediatek/mtk_dp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6524d3d58797975cc40b85be1e9b89721b4e8d0b",
              "status": "affected",
              "version": "f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b",
              "versionType": "git"
            },
            {
              "lessThan": "3551789d0635dfb2df8ab8e7fdbf0647e9c1724c",
              "status": "affected",
              "version": "f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b",
              "versionType": "git"
            },
            {
              "lessThan": "d1c04e338016ae2517c641806a831b1f3eee2bed",
              "status": "affected",
              "version": "f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b",
              "versionType": "git"
            },
            {
              "lessThan": "36b617f7e4ae663fcadd202ea061ca695ca75539",
              "status": "affected",
              "version": "f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/mediatek/mtk_dp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.1"
            },
            {
              "lessThan": "6.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.28",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.15",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.28",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.15",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3.2",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: dp: Only trigger DRM HPD events if bridge is attached\n\nThe MediaTek DisplayPort interface bridge driver starts its interrupts\nas soon as its probed. However when the interrupts trigger the bridge\nmight not have been attached to a DRM device. As drm_helper_hpd_irq_event()\ndoes not check whether the passed in drm_device is valid or not, a NULL\npointer passed in results in a kernel NULL pointer dereference in it.\n\nCheck whether the bridge is attached and only trigger an HPD event if\nit is."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-18T13:33:32.095Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6524d3d58797975cc40b85be1e9b89721b4e8d0b"
        },
        {
          "url": "https://git.kernel.org/stable/c/3551789d0635dfb2df8ab8e7fdbf0647e9c1724c"
        },
        {
          "url": "https://git.kernel.org/stable/c/d1c04e338016ae2517c641806a831b1f3eee2bed"
        },
        {
          "url": "https://git.kernel.org/stable/c/36b617f7e4ae663fcadd202ea061ca695ca75539"
        }
      ],
      "title": "drm/mediatek: dp: Only trigger DRM HPD events if bridge is attached",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53389",
    "datePublished": "2025-09-18T13:33:32.095Z",
    "dateReserved": "2025-09-17T14:54:09.737Z",
    "dateUpdated": "2026-01-14T19:03:05.329Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53389\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-18T14:15:42.003\",\"lastModified\":\"2026-01-14T19:16:37.433\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/mediatek: dp: Only trigger DRM HPD events if bridge is attached\\n\\nThe MediaTek DisplayPort interface bridge driver starts its interrupts\\nas soon as its probed. However when the interrupts trigger the bridge\\nmight not have been attached to a DRM device. As drm_helper_hpd_irq_event()\\ndoes not check whether the passed in drm_device is valid or not, a NULL\\npointer passed in results in a kernel NULL pointer dereference in it.\\n\\nCheck whether the bridge is attached and only trigger an HPD event if\\nit is.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1\",\"versionEndExcluding\":\"6.1.28\",\"matchCriteriaId\":\"41E7FC7F-2ADF-4DF6-9A4E-0A8CA493CD28\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.2.15\",\"matchCriteriaId\":\"3844A90B-940D-46C3-8D7B-9FF63F1AFC2F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.3\",\"versionEndExcluding\":\"6.3.2\",\"matchCriteriaId\":\"38F6F330-91A0-4675-8B90-6F950471A7CC\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3551789d0635dfb2df8ab8e7fdbf0647e9c1724c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/36b617f7e4ae663fcadd202ea061ca695ca75539\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6524d3d58797975cc40b85be1e9b89721b4e8d0b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d1c04e338016ae2517c641806a831b1f3eee2bed\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-53389\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:58:37.692355Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-476\", \"description\": \"CWE-476 NULL Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:58:33.468Z\"}}], \"cna\": {\"title\": \"drm/mediatek: dp: Only trigger DRM HPD events if bridge is attached\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b\", \"lessThan\": \"6524d3d58797975cc40b85be1e9b89721b4e8d0b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b\", \"lessThan\": \"3551789d0635dfb2df8ab8e7fdbf0647e9c1724c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b\", \"lessThan\": \"d1c04e338016ae2517c641806a831b1f3eee2bed\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b\", \"lessThan\": \"36b617f7e4ae663fcadd202ea061ca695ca75539\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/gpu/drm/mediatek/mtk_dp.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.1\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.1\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.28\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2.15\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.2.*\"}, {\"status\": \"unaffected\", \"version\": \"6.3.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.3.*\"}, {\"status\": \"unaffected\", \"version\": \"6.4\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/gpu/drm/mediatek/mtk_dp.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/6524d3d58797975cc40b85be1e9b89721b4e8d0b\"}, {\"url\": \"https://git.kernel.org/stable/c/3551789d0635dfb2df8ab8e7fdbf0647e9c1724c\"}, {\"url\": \"https://git.kernel.org/stable/c/d1c04e338016ae2517c641806a831b1f3eee2bed\"}, {\"url\": \"https://git.kernel.org/stable/c/36b617f7e4ae663fcadd202ea061ca695ca75539\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/mediatek: dp: Only trigger DRM HPD events if bridge is attached\\n\\nThe MediaTek DisplayPort interface bridge driver starts its interrupts\\nas soon as its probed. However when the interrupts trigger the bridge\\nmight not have been attached to a DRM device. As drm_helper_hpd_irq_event()\\ndoes not check whether the passed in drm_device is valid or not, a NULL\\npointer passed in results in a kernel NULL pointer dereference in it.\\n\\nCheck whether the bridge is attached and only trigger an HPD event if\\nit is.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.28\", \"versionStartIncluding\": \"6.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2.15\", \"versionStartIncluding\": \"6.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.3.2\", \"versionStartIncluding\": \"6.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.4\", \"versionStartIncluding\": \"6.1\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-09-18T13:33:32.095Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-53389\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-14T19:03:05.329Z\", \"dateReserved\": \"2025-09-17T14:54:09.737Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-18T13:33:32.095Z\", \"assignerShortName\": \"Linux\"}",
      "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 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.