CVE-2024-26797
Vulnerability from cvelistv5
Published
2024-04-04 08:20
Modified
2024-12-19 08:47
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Prevent potential buffer overflow in map_hw_resources Adds a check in the map_hw_resources function to prevent a potential buffer overflow. The function was accessing arrays using an index that could potentially be greater than the size of the arrays, leading to a buffer overflow. Adds a check to ensure that the index is within the bounds of the arrays. If the index is out of bounds, an error message is printed and break it will continue execution with just ignoring extra data early to prevent the buffer overflow. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/dml2_wrapper.c:79 map_hw_resources() error: buffer overflow 'dml2->v20.scratch.dml_to_dc_pipe_mapping.disp_cfg_to_stream_id' 6 <= 7 drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/dml2_wrapper.c:81 map_hw_resources() error: buffer overflow 'dml2->v20.scratch.dml_to_dc_pipe_mapping.disp_cfg_to_plane_id' 6 <= 7
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0f8ca019544a252d1afb468ce840c6dcbac73af4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/50a6302cf881f67f1410461a68fe9eabd00ff31d
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0f8ca019544a252d1afb468ce840c6dcbac73af4
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/50a6302cf881f67f1410461a68fe9eabd00ff31d
Impacted products
Vendor Product Version
Linux Linux Version: 6.7
Show details on NVD website

To clipboard 

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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26797\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-04T09:15:08.843\",\"lastModified\":\"2024-11-21T09:03:05.660\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amd/display: Prevent potential buffer overflow in map_hw_resources\\n\\nAdds a check in the map_hw_resources function to prevent a potential\\nbuffer overflow. The function was accessing arrays using an index that\\ncould potentially be greater than the size of the arrays, leading to a\\nbuffer overflow.\\n\\nAdds a check to ensure that the index is within the bounds of the\\narrays. If the index is out of bounds, an error message is printed and\\nbreak it will continue execution with just ignoring extra data early to\\nprevent the buffer overflow.\\n\\nReported by smatch:\\ndrivers/gpu/drm/amd/amdgpu/../display/dc/dml2/dml2_wrapper.c:79 map_hw_resources() error: buffer overflow \u0027dml2-\u003ev20.scratch.dml_to_dc_pipe_mapping.disp_cfg_to_stream_id\u0027 6 \u003c= 7\\ndrivers/gpu/drm/amd/amdgpu/../display/dc/dml2/dml2_wrapper.c:81 map_hw_resources() error: buffer overflow \u0027dml2-\u003ev20.scratch.dml_to_dc_pipe_mapping.disp_cfg_to_plane_id\u0027 6 \u003c= 7\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Previene un posible desbordamiento del b\u00fafer en map_hw_resources Agrega una verificaci\u00f3n en la funci\u00f3n map_hw_resources para evitar un posible desbordamiento del b\u00fafer. La funci\u00f3n acced\u00eda a matrices utilizando un \u00edndice que potencialmente podr\u00eda ser mayor que el tama\u00f1o de las matrices, lo que provocaba un desbordamiento del b\u00fafer. Agrega una verificaci\u00f3n para garantizar que el \u00edndice est\u00e9 dentro de los l\u00edmites de las matrices. Si el \u00edndice est\u00e1 fuera de los l\u00edmites, se imprime un mensaje de error y, al interrumpirlo, continuar\u00e1 la ejecuci\u00f3n ignorando los datos adicionales antes de tiempo para evitar el desbordamiento del b\u00fafer. Reportado por smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/dml2_wrapper.c:79 error map_hw_resources(): desbordamiento del b\u00fafer \u0027dml2-\u0026gt;v20.scratch.dml_to_dc_pipe_mapping.disp_cfg_to_stream_id\u0027 6 \u0026lt;= 7 controladores/gpu/drm/amd/amdgpu/../display/dc/dml2/dml2_wrapper.c:81 error map_hw_resources(): desbordamiento del b\u00fafer \u0027dml2-\u0026gt;v20.scratch.dml_to_dc_pipe_mapping.disp_cfg_to_plane_id\u0027 6 \u0026lt;= 7\"}],\"metrics\":{\"cvssMetricV31\":[{\"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:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-120\"}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0f8ca019544a252d1afb468ce840c6dcbac73af4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/50a6302cf881f67f1410461a68fe9eabd00ff31d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0f8ca019544a252d1afb468ce840c6dcbac73af4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/50a6302cf881f67f1410461a68fe9eabd00ff31d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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