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CVE-2024-26660 (GCVE-0-2024-26660)

Vulnerability from cvelistv5 – Published: 2024-04-02 06:22 – Updated: 2026-08-05 11:26
VLAI
Title
drm/amd/display: Implement bounds check for stream encoder creation in DCN301
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Implement bounds check for stream encoder creation in DCN301 'stream_enc_regs' array is an array of dcn10_stream_enc_registers structures. The array is initialized with four elements, corresponding to the four calls to stream_enc_regs() in the array initializer. This means that valid indices for this array are 0, 1, 2, and 3. The error message 'stream_enc_regs' 4 <= 5 below, is indicating that there is an attempt to access this array with an index of 5, which is out of bounds. This could lead to undefined behavior Here, eng_id is used as an index to access the stream_enc_regs array. If eng_id is 5, this would result in an out-of-bounds access on the stream_enc_regs array. Thus fixing Buffer overflow error in dcn301_stream_encoder_create reported by Smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn301/dcn301_resource.c:1011 dcn301_stream_encoder_create() error: buffer overflow 'stream_enc_regs' 4 <= 5
Severity
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:53 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3a83e4e64bb1522ddac67ffc787d1c38291e1a65 , < 42442f74314d41ddc68227047036fa3e78940054 (git)
Affected: 3a83e4e64bb1522ddac67ffc787d1c38291e1a65 , < efdd665ce1a1634b8c1dad5e7f6baaef3e131d0a (git)
Affected: 3a83e4e64bb1522ddac67ffc787d1c38291e1a65 , < cd9bd10c59e3c1446680514fd3097c5b00d3712d (git)
Affected: 3a83e4e64bb1522ddac67ffc787d1c38291e1a65 , < a938eab9586eea31cfd129a507f552efae14d738 (git)
Affected: 3a83e4e64bb1522ddac67ffc787d1c38291e1a65 , < 58fca355ad37dcb5f785d9095db5f748b79c5dc2 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.15.149 , ≤ 5.15.* (semver)
Unaffected: 6.1.78 , ≤ 6.1.* (semver)
Unaffected: 6.6.17 , ≤ 6.6.* (semver)
Unaffected: 6.7.5 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Implement bounds check for stream encoder creation in DCN301\n\n\u0027stream_enc_regs\u0027 array is an array of dcn10_stream_enc_registers\nstructures. The array is initialized with four elements, corresponding\nto the four calls to stream_enc_regs() in the array initializer. This\nmeans that valid indices for this array are 0, 1, 2, and 3.\n\nThe error message \u0027stream_enc_regs\u0027 4 \u003c= 5 below, is indicating that\nthere is an attempt to access this array with an index of 5, which is\nout of bounds. This could lead to undefined behavior\n\nHere, eng_id is used as an index to access the stream_enc_regs array. If\neng_id is 5, this would result in an out-of-bounds access on the\nstream_enc_regs array.\n\nThus fixing Buffer overflow error in dcn301_stream_encoder_create\nreported by Smatch:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn301/dcn301_resource.c:1011 dcn301_stream_encoder_create() error: buffer overflow \u0027stream_enc_regs\u0027 4 \u003c= 5"
          },
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            "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: drm/amd/display: implementar la verificaci\u00f3n de los l\u00edmites para la creaci\u00f3n del codificador de flujo en la matriz DCN301 \u0027stream_enc_regs\u0027 es una matriz de estructuras dcn10_stream_enc_registers. La matriz se inicializa con cuatro elementos, correspondientes a las cuatro llamadas a stream_enc_regs() en el inicializador de la matriz. Esto significa que los \u00edndices v\u00e1lidos para esta matriz son 0, 1, 2 y 3. El mensaje de error \u0027stream_enc_regs\u0027 4 \u0026lt;= 5 a continuaci\u00f3n indica que hay un intento de acceder a esta matriz con un \u00edndice de 5, que no est\u00e1 disponible. de los l\u00edmites. Esto podr\u00eda provocar un comportamiento indefinido. Aqu\u00ed, eng_id se utiliza como \u00edndice para acceder a la matriz stream_enc_regs. Si eng_id es 5, esto dar\u00eda como resultado un acceso fuera de los l\u00edmites en la matriz stream_enc_regs. Solucionando as\u00ed el error de desbordamiento de b\u00fafer en dcn301_stream_encoder_create informado por Smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn301/dcn301_resource.c:1011 dcn301_stream_encoder_create() error: desbordamiento de b\u00fafer \u0027stream_enc_regs\u0027 4 \u0026lt;= 5"
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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.