CVE-2022-49221 (GCVE-0-2022-49221)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2025-10-01 19:47
VLAI?
Title
drm/msm/dp: populate connector of struct dp_panel
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: populate connector of struct dp_panel DP CTS test case 4.2.2.6 has valid edid with bad checksum on purpose and expect DP source return correct checksum. During drm edid read, correct edid checksum is calculated and stored at connector::real_edid_checksum. The problem is struct dp_panel::connector never be assigned, instead the connector is stored in struct msm_dp::connector. When we run compliance testing test case 4.2.2.6 dp_panel_handle_sink_request() won't have a valid edid set in struct dp_panel::edid so we'll try to use the connectors real_edid_checksum and hit a NULL pointer dereference error because the connector pointer is never assigned. Changes in V2: -- populate panel connector at msm_dp_modeset_init() instead of at dp_panel_read_sink_caps() Changes in V3: -- remove unhelpful kernel crash trace commit text -- remove renaming dp_display parameter to dp Changes in V4: -- add more details to commit text Changes in v10: -- group into one series Changes in v11: -- drop drm/msm/dp: dp_link_parse_sink_count() return immediately if aux read Signee-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
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: f86bc4a1a401d3691bad41e67f9db0c2ea94da32 , < 413c62697b61226a236c8b1f5cd64dcf42bcc12f (git)
Affected: 7948fe12d47a946fb8025a0534c900e3dd4b5839 , < 9525b8bcae8b99188990b56484799cf4b1b43786 (git)
Affected: 7948fe12d47a946fb8025a0534c900e3dd4b5839 , < fbba600f432a360b42452fee79d1fb35d3aa8aeb (git)
Affected: 7948fe12d47a946fb8025a0534c900e3dd4b5839 , < 104074ebc0c3f358dd1ee944fbcde92c6e5a21dd (git)
Affected: 7948fe12d47a946fb8025a0534c900e3dd4b5839 , < 5e602f5156910c7b19661699896cb6e3fb94fab9 (git)
Affected: ab1ccd1e2584b268784518f838f7cc72faec576b (git)
Affected: 08a96864a45b65ee406a344c78dd761b2fd66887 (git)
Create a notification for this product.
    Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.10.110 , ≤ 5.10.* (semver)
Unaffected: 5.15.33 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (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-2022-49221",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:46:27.011573Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-476",
                "description": "CWE-476 NULL Pointer Dereference",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:47:04.278Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/dp/dp_display.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "413c62697b61226a236c8b1f5cd64dcf42bcc12f",
              "status": "affected",
              "version": "f86bc4a1a401d3691bad41e67f9db0c2ea94da32",
              "versionType": "git"
            },
            {
              "lessThan": "9525b8bcae8b99188990b56484799cf4b1b43786",
              "status": "affected",
              "version": "7948fe12d47a946fb8025a0534c900e3dd4b5839",
              "versionType": "git"
            },
            {
              "lessThan": "fbba600f432a360b42452fee79d1fb35d3aa8aeb",
              "status": "affected",
              "version": "7948fe12d47a946fb8025a0534c900e3dd4b5839",
              "versionType": "git"
            },
            {
              "lessThan": "104074ebc0c3f358dd1ee944fbcde92c6e5a21dd",
              "status": "affected",
              "version": "7948fe12d47a946fb8025a0534c900e3dd4b5839",
              "versionType": "git"
            },
            {
              "lessThan": "5e602f5156910c7b19661699896cb6e3fb94fab9",
              "status": "affected",
              "version": "7948fe12d47a946fb8025a0534c900e3dd4b5839",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ab1ccd1e2584b268784518f838f7cc72faec576b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "08a96864a45b65ee406a344c78dd761b2fd66887",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/dp/dp_display.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.110",
                  "versionStartIncluding": "5.10.67",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.33",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16.19",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.2",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.13.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.14.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dp: populate connector of struct dp_panel\n\nDP CTS test case 4.2.2.6 has valid edid with bad checksum on purpose\nand expect DP source return correct checksum. During drm edid read,\ncorrect edid checksum is calculated and stored at\nconnector::real_edid_checksum.\n\nThe problem is struct dp_panel::connector never be assigned, instead the\nconnector is stored in struct msm_dp::connector. When we run compliance\ntesting test case 4.2.2.6 dp_panel_handle_sink_request() won\u0027t have a valid\nedid set in struct dp_panel::edid so we\u0027ll try to use the connectors\nreal_edid_checksum and hit a NULL pointer dereference error because the\nconnector pointer is never assigned.\n\nChanges in V2:\n-- populate panel connector at msm_dp_modeset_init() instead of at dp_panel_read_sink_caps()\n\nChanges in V3:\n-- remove unhelpful kernel crash trace commit text\n-- remove renaming dp_display parameter to dp\n\nChanges in V4:\n-- add more details to commit text\n\nChanges in v10:\n--  group into one series\n\nChanges in v11:\n-- drop drm/msm/dp: dp_link_parse_sink_count() return immediately if aux read\n\nSignee-off-by: Kuogee Hsieh \u003cquic_khsieh@quicinc.com\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T12:44:22.205Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/413c62697b61226a236c8b1f5cd64dcf42bcc12f"
        },
        {
          "url": "https://git.kernel.org/stable/c/9525b8bcae8b99188990b56484799cf4b1b43786"
        },
        {
          "url": "https://git.kernel.org/stable/c/fbba600f432a360b42452fee79d1fb35d3aa8aeb"
        },
        {
          "url": "https://git.kernel.org/stable/c/104074ebc0c3f358dd1ee944fbcde92c6e5a21dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/5e602f5156910c7b19661699896cb6e3fb94fab9"
        }
      ],
      "title": "drm/msm/dp: populate connector of struct dp_panel",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49221",
    "datePublished": "2025-02-26T01:55:53.318Z",
    "dateReserved": "2025-02-26T01:49:39.292Z",
    "dateUpdated": "2025-10-01T19:47:04.278Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "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-2022-49221\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:46:27.011573Z\"}}}], \"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\": \"2025-10-01T16:10:09.982Z\"}}], \"cna\": {\"title\": \"drm/msm/dp: populate connector of struct dp_panel\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"f86bc4a1a401d3691bad41e67f9db0c2ea94da32\", \"lessThan\": \"413c62697b61226a236c8b1f5cd64dcf42bcc12f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7948fe12d47a946fb8025a0534c900e3dd4b5839\", \"lessThan\": \"9525b8bcae8b99188990b56484799cf4b1b43786\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7948fe12d47a946fb8025a0534c900e3dd4b5839\", \"lessThan\": \"fbba600f432a360b42452fee79d1fb35d3aa8aeb\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7948fe12d47a946fb8025a0534c900e3dd4b5839\", \"lessThan\": \"104074ebc0c3f358dd1ee944fbcde92c6e5a21dd\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7948fe12d47a946fb8025a0534c900e3dd4b5839\", \"lessThan\": \"5e602f5156910c7b19661699896cb6e3fb94fab9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ab1ccd1e2584b268784518f838f7cc72faec576b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"08a96864a45b65ee406a344c78dd761b2fd66887\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/gpu/drm/msm/dp/dp_display.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.110\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.33\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16.19\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.16.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.17.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/gpu/drm/msm/dp/dp_display.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/413c62697b61226a236c8b1f5cd64dcf42bcc12f\"}, {\"url\": \"https://git.kernel.org/stable/c/9525b8bcae8b99188990b56484799cf4b1b43786\"}, {\"url\": \"https://git.kernel.org/stable/c/fbba600f432a360b42452fee79d1fb35d3aa8aeb\"}, {\"url\": \"https://git.kernel.org/stable/c/104074ebc0c3f358dd1ee944fbcde92c6e5a21dd\"}, {\"url\": \"https://git.kernel.org/stable/c/5e602f5156910c7b19661699896cb6e3fb94fab9\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/msm/dp: populate connector of struct dp_panel\\n\\nDP CTS test case 4.2.2.6 has valid edid with bad checksum on purpose\\nand expect DP source return correct checksum. During drm edid read,\\ncorrect edid checksum is calculated and stored at\\nconnector::real_edid_checksum.\\n\\nThe problem is struct dp_panel::connector never be assigned, instead the\\nconnector is stored in struct msm_dp::connector. When we run compliance\\ntesting test case 4.2.2.6 dp_panel_handle_sink_request() won\u0027t have a valid\\nedid set in struct dp_panel::edid so we\u0027ll try to use the connectors\\nreal_edid_checksum and hit a NULL pointer dereference error because the\\nconnector pointer is never assigned.\\n\\nChanges in V2:\\n-- populate panel connector at msm_dp_modeset_init() instead of at dp_panel_read_sink_caps()\\n\\nChanges in V3:\\n-- remove unhelpful kernel crash trace commit text\\n-- remove renaming dp_display parameter to dp\\n\\nChanges in V4:\\n-- add more details to commit text\\n\\nChanges in v10:\\n--  group into one series\\n\\nChanges in v11:\\n-- drop drm/msm/dp: dp_link_parse_sink_count() return immediately if aux read\\n\\nSignee-off-by: Kuogee Hsieh \u003cquic_khsieh@quicinc.com\u003e\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.110\", \"versionStartIncluding\": \"5.10.67\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.33\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16.19\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.2\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.13.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.14.6\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T12:44:22.205Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49221\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-01T19:47:04.278Z\", \"dateReserved\": \"2025-02-26T01:49:39.292Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T01:55:53.318Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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.