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CVE-2024-49917 (GCVE-0-2024-49917)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-05-11 20:41
VLAI
Title
drm/amd/display: Add NULL check for clk_mgr and clk_mgr->funcs in dcn30_init_hw
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add NULL check for clk_mgr and clk_mgr->funcs in dcn30_init_hw This commit addresses a potential null pointer dereference issue in the `dcn30_init_hw` function. The issue could occur when `dc->clk_mgr` or `dc->clk_mgr->funcs` is null. The fix adds a check to ensure `dc->clk_mgr` and `dc->clk_mgr->funcs` is not null before accessing its functions. This prevents a potential null pointer dereference. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn30/dcn30_hwseq.c:789 dcn30_init_hw() error: we previously assumed 'dc->clk_mgr' could be null (see line 628)
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:40 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 23cb6139543580dc36743586ca86fbb3f7ab2c9d (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 205e3b96cc9aa9211fd2c849a16245cf236b2d36 (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 5443c83eb8fd2f88c71ced38848fbf744d6206a2 (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 56c326577971adc3a230f29dfd3aa3abdd505f5d (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < cba7fec864172dadd953daefdd26e01742b71a6a (git)
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Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 6.1.120 , ≤ 6.1.* (semver)
Unaffected: 6.6.64 , ≤ 6.6.* (semver)
Unaffected: 6.10.14 , ≤ 6.10.* (semver)
Unaffected: 6.11.3 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-49917\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T18:15:13.937\",\"lastModified\":\"2026-06-17T08:00:43.870\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amd/display: Add NULL check for clk_mgr and clk_mgr-\u003efuncs in dcn30_init_hw\\n\\nThis commit addresses a potential null pointer dereference issue in the\\n`dcn30_init_hw` function. The issue could occur when `dc-\u003eclk_mgr` or\\n`dc-\u003eclk_mgr-\u003efuncs` is null.\\n\\nThe fix adds a check to ensure `dc-\u003eclk_mgr` and `dc-\u003eclk_mgr-\u003efuncs` is\\nnot null before accessing its functions. This prevents a potential null\\npointer dereference.\\n\\nReported by smatch:\\ndrivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn30/dcn30_hwseq.c:789 dcn30_init_hw() error: we previously assumed \u0027dc-\u003eclk_mgr\u0027 could be null (see line 628)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Agregar comprobaci\u00f3n NULL para clk_mgr y clk_mgr-\u0026gt;funcs en dcn30_init_hw Esta confirmaci\u00f3n soluciona un posible problema de desreferencia de puntero nulo en la funci\u00f3n `dcn30_init_hw`. El problema podr\u00eda ocurrir cuando `dc-\u0026gt;clk_mgr` o `dc-\u0026gt;clk_mgr-\u0026gt;funcs` es nulo. La correcci\u00f3n agrega una comprobaci\u00f3n para garantizar que `dc-\u0026gt;clk_mgr` y `dc-\u0026gt;clk_mgr-\u0026gt;funcs` no sean nulos antes de acceder a sus funciones. Esto evita una posible desreferencia de puntero nulo. Reportado por smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn30/dcn30_hwseq.c:789 Error dcn30_init_hw(): previamente asumimos que \u0027dc-\u0026gt;clk_mgr\u0027 podr\u00eda ser nulo (ver l\u00ednea 628)\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/gpu/drm/amd/display/dc/hwss/dcn30/dcn30_hwseq.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\",\"lessThan\":\"23cb6139543580dc36743586ca86fbb3f7ab2c9d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\",\"lessThan\":\"205e3b96cc9aa9211fd2c849a16245cf236b2d36\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\",\"lessThan\":\"5443c83eb8fd2f88c71ced38848fbf744d6206a2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\",\"lessThan\":\"56c326577971adc3a230f29dfd3aa3abdd505f5d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\",\"lessThan\":\"cba7fec864172dadd953daefdd26e01742b71a6a\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/gpu/drm/amd/display/dc/hwss/dcn30/dcn30_hwseq.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.15\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.15\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.120\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.64\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10.14\",\"lessThanOrEqual\":\"6.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11.3\",\"lessThanOrEqual\":\"6.11.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-10-22T13:40:51.944829Z\",\"id\":\"CVE-2024-49917\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.10.14\",\"matchCriteriaId\":\"652638C5-5F25-4DF3-AD42-DD3252A97152\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.11\",\"versionEndExcluding\":\"6.11.3\",\"matchCriteriaId\":\"54D9C704-D679-41A7-9C40-10A6B1E7FFE9\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/205e3b96cc9aa9211fd2c849a16245cf236b2d36\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/23cb6139543580dc36743586ca86fbb3f7ab2c9d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5443c83eb8fd2f88c71ced38848fbf744d6206a2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/56c326577971adc3a230f29dfd3aa3abdd505f5d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cba7fec864172dadd953daefdd26e01742b71a6a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T14:21:29+00:00",
      "cve": "CVE-2024-49917",
      "id": "CVE-2024-49917",
      "initial_release_date": "2024-10-21T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/amd/display: Add NULL check for clk_mgr and clk_mgr-\u0026gt;funcs in dcn30_init_hw",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-49917.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-03T16:39:20Z",
      "cve": "CVE-2024-49917",
      "id": "CVE-2024-49917",
      "initial_release_date": "2024-10-23T02:51:08Z",
      "product_status:known_affected": "432",
      "product_status:known_not_affected": "340",
      "product_status:recommended": "638",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-49917",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-49917.json",
      "version": "68"
    },
    "vulnrichment": {
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The issue could occur when `dc-\u003eclk_mgr` or\\n`dc-\u003eclk_mgr-\u003efuncs` is null.\\n\\nThe fix adds a check to ensure `dc-\u003eclk_mgr` and `dc-\u003eclk_mgr-\u003efuncs` is\\nnot null before accessing its functions. This prevents a potential null\\npointer dereference.\\n\\nReported by smatch:\\ndrivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn30/dcn30_hwseq.c:789 dcn30_init_hw() error: we previously assumed \u0027dc-\u003eclk_mgr\u0027 could be null (see line 628)\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.120\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.64\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.14\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.3\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"4.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:41:46.909Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-49917\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:41:46.909Z\", \"dateReserved\": \"2024-10-21T12:17:06.033Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T18:01:44.295Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.