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CVE-2026-43397

Estado: AnalizadaMedia (5.5)—

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

drm/bridge: samsung-dsim: Fix memory leak in error path

In samsung_dsim_host_attach(), drm_bridge_add() is called to add the bridge. However, if samsung_dsim_register_te_irq() or pdata->host_ops->attach() fails afterwards, the function returns without removing the bridge, causing a memory leak.

Fix this by adding proper error handling with goto labels to ensure drm_bridge_remove() is called in all error paths. Also ensure that samsung_dsim_unregister_te_irq() is called if the attach operation fails after the TE IRQ has been registered.

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samsung_dsim_unregister_te_irq() function is moved without changes to be before samsung_dsim_host_attach() to avoid forward declaration.

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)

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  "id": "CVE-2026-43397",
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          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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  "published": "2026-05-08T15:16:51.117",
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/bridge: samsung-dsim: Fix memory leak in error path\n\nIn samsung_dsim_host_attach(), drm_bridge_add() is called to add the\nbridge. However, if samsung_dsim_register_te_irq() or\npdata->host_ops->attach() fails afterwards, the function returns\nwithout removing the bridge, causing a memory leak.\n\nFix this by adding proper error handling with goto labels to ensure\ndrm_bridge_remove() is called in all error paths. Also ensure that\nsamsung_dsim_unregister_te_irq() is called if the attach operation\nfails after the TE IRQ has been registered.\n\nsamsung_dsim_unregister_te_irq() function is moved without changes\nto be before samsung_dsim_host_attach() to avoid forward declaration."
    }
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  "lastModified": "2026-06-17T10:49:31.220",
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