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CVE-2024-49898 (GCVE-0-2024-49898)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-05-11 20:41
VLAI
Title
drm/amd/display: Check null-initialized variables
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check null-initialized variables [WHAT & HOW] drr_timing and subvp_pipe are initialized to null and they are not always assigned new values. It is necessary to check for null before dereferencing. This fixes 2 FORWARD_NULL issues reported by Coverity.
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 13:43 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 26d262b79a3587aaa84368586a55e9026c67841b (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < c3a3b6d9a9383e3c1a4a08878ba5046e68647595 (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 3fc70ae048fe0936761b73b50700a810ff61e853 (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 115b1a3b0944b4d8ef0b4b0c5a625bdd9474131f (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 367cd9ceba1933b63bc1d87d967baf6d9fd241d2 (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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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-49898\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:43:17.555791Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:43:20.800Z\"}}], \"cna\": {\"title\": \"drm/amd/display: Check null-initialized variables\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\", \"lessThan\": \"26d262b79a3587aaa84368586a55e9026c67841b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\", \"lessThan\": \"c3a3b6d9a9383e3c1a4a08878ba5046e68647595\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\", \"lessThan\": \"3fc70ae048fe0936761b73b50700a810ff61e853\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\", \"lessThan\": \"115b1a3b0944b4d8ef0b4b0c5a625bdd9474131f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\", \"lessThan\": \"367cd9ceba1933b63bc1d87d967baf6d9fd241d2\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.120\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.64\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.14\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/26d262b79a3587aaa84368586a55e9026c67841b\"}, {\"url\": \"https://git.kernel.org/stable/c/c3a3b6d9a9383e3c1a4a08878ba5046e68647595\"}, {\"url\": \"https://git.kernel.org/stable/c/3fc70ae048fe0936761b73b50700a810ff61e853\"}, {\"url\": \"https://git.kernel.org/stable/c/115b1a3b0944b4d8ef0b4b0c5a625bdd9474131f\"}, {\"url\": \"https://git.kernel.org/stable/c/367cd9ceba1933b63bc1d87d967baf6d9fd241d2\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amd/display: Check null-initialized variables\\n\\n[WHAT \u0026 HOW]\\ndrr_timing and subvp_pipe are initialized to null and they are not\\nalways assigned new values. It is necessary to check for null before\\ndereferencing.\\n\\nThis fixes 2 FORWARD_NULL issues reported by Coverity.\"}], \"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\": \"2025-07-11T17:20:59.435Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-49898\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-07-11T17:20:59.435Z\", \"dateReserved\": \"2024-10-21T12:17:06.026Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T18:01:31.212Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.