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CVE-2026-23132

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

drm/bridge: synopsys: dw-dp: fix error paths of dw_dp_bind

Fix several issues in dw_dp_bind() error handling:

Use a goto label for cleanup to ensure consistent error handling.

Detalles técnicos trazas, registros y código del informe original
1. Missing return after drm_bridge_attach() failure - the function
   continued execution instead of returning an error.

2. Resource leak: drm_dp_aux_register() is not a devm function, so
   drm_dp_aux_unregister() must be called on all error paths after
   aux registration succeeds. This affects errors from:
   - drm_bridge_attach()
   - phy_init()
   - devm_add_action_or_reset()
   - platform_get_irq()
   - devm_request_threaded_irq()

3. Bug fix: platform_get_irq() returns the IRQ number or a negative
   error code, but the error path was returning ERR_PTR(ret) instead
   of ERR_PTR(dp->irq).

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/bridge: synopsys: dw-dp: fix error paths of dw_dp_bind\n\nFix several issues in dw_dp_bind() error handling:\n\n1. Missing return after drm_bridge_attach() failure - the function\n   continued execution instead of returning an error.\n\n2. Resource leak: drm_dp_aux_register() is not a devm function, so\n   drm_dp_aux_unregister() must be called on all error paths after\n   aux registration succeeds. This affects errors from:\n   - drm_bridge_attach()\n   - phy_init()\n   - devm_add_action_or_reset()\n   - platform_get_irq()\n   - devm_request_threaded_irq()\n\n3. Bug fix: platform_get_irq() returns the IRQ number or a negative\n   error code, but the error path was returning ERR_PTR(ret) instead\n   of ERR_PTR(dp->irq).\n\nUse a goto label for cleanup to ensure consistent error handling."
    },
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      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/bridge: synopsys: dw-dp: corregir rutas de error de dw_dp_bind\n\nCorregir varios problemas en el manejo de errores de dw_dp_bind():\n\n1. Retorno faltante después de un fallo de drm_bridge_attach(): la función continuó la ejecución en lugar de devolver un error.\n\n2. Fuga de recursos: drm_dp_aux_register() no es una función devm, por lo que drm_dp_aux_unregister() debe ser llamada en todas las rutas de error después de que el registro auxiliar tenga éxito. Esto afecta a los errores de:\n   - drm_bridge_attach()\n   - phy_init()\n   - devm_add_action_or_reset()\n   - platform_get_irq()\n   - devm_request_threaded_irq()\n\n3. Corrección de error: platform_get_irq() devuelve el número IRQ o un código de error negativo, pero la ruta de error estaba devolviendo ERR_PTR(ret) en lugar de ERR_PTR(dp->irq).\n\nUsar una etiqueta goto para la limpieza para asegurar un manejo de errores consistente."
    }
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  "lastModified": "2026-06-17T10:20:57.503",
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