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CVE-2026-68280

Estado: RecibidaSin puntuar—

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

drm/bridge: cdns-dsi: Replace deprecated UNIVERSAL_DEV_PM_OPS()

The deprecated UNIVERSAL_DEV_PM_OPS() macro uses the provided callbacks for both runtime PM and system sleep. This causes the DSI clocks to be disabled twice: once during runtime suspend and again during system suspend, resulting in a WARN message from the clock framework when attempting to disable already-disabled clocks.

To address this issue, replace UNIVERSAL_DEV_PM_OPS() with RUNTIME_PM_OPS(). Bridge and panel drivers should only deal with runtime PM, as the DRM framework manages system-wide power transitions through the bridge enable() and disable() hooks.

Detalles técnicos trazas, registros y código del informe original
[   84.384540] clk:231:5 already disabled
[   84.388314] WARNING: CPU: 2 PID: 531 at /drivers/clk/clk.c:1181 clk_core_disable+0xa4/0xac
...
[   84.579183] Call trace:
[   84.581624]  clk_core_disable+0xa4/0xac
[   84.585457]  clk_disable+0x30/0x4c
[   84.588857]  cdns_dsi_suspend+0x20/0x58 [cdns_dsi]
[   84.593651]  pm_generic_suspend+0x2c/0x44
[   84.597661]  ti_sci_pd_suspend+0xbc/0x15c
[   84.601670]  dpm_run_callback+0x8c/0x14c
[   84.605588]  __device_suspend+0x1a0/0x56c
[   84.609594]  dpm_suspend+0x17c/0x21c
[   84.613165]  dpm_suspend_start+0xa0/0xa8
[   84.617083]  suspend_devices_and_enter+0x12c/0x634
[   84.621872]  pm_suspend+0x1fc/0x368

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

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)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-68280",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "e19233955d9e9a9ae202723b9a38ef38e755b5c0",
              "lessThan": "1014b279264c0fc9f56324608754e36d33b7b5ae",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e19233955d9e9a9ae202723b9a38ef38e755b5c0",
              "lessThan": "c18d46d9830c29677be5213a067daafe1ac80e43",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e19233955d9e9a9ae202723b9a38ef38e755b5c0",
              "lessThan": "347bc3a6a4d968c403d2292e5ad986294d919dfc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e19233955d9e9a9ae202723b9a38ef38e755b5c0",
              "lessThan": "c0384d6872f4dc2701960048a0be1a12a8d2dc6e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e19233955d9e9a9ae202723b9a38ef38e755b5c0",
              "lessThan": "1f9c6b74e79639179e90ad0c0fbeae26e31e044b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e19233955d9e9a9ae202723b9a38ef38e755b5c0",
              "lessThan": "2d8b08844c0ecc6f2002fa68711e779aa18c8585",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.18"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.18",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.184",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-10T13:20:17.170",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1014b279264c0fc9f56324608754e36d33b7b5ae",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/1f9c6b74e79639179e90ad0c0fbeae26e31e044b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2d8b08844c0ecc6f2002fa68711e779aa18c8585",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/347bc3a6a4d968c403d2292e5ad986294d919dfc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c0384d6872f4dc2701960048a0be1a12a8d2dc6e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c18d46d9830c29677be5213a067daafe1ac80e43",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/bridge: cdns-dsi: Replace deprecated UNIVERSAL_DEV_PM_OPS()\n\nThe deprecated UNIVERSAL_DEV_PM_OPS() macro uses the provided callbacks\nfor both runtime PM and system sleep. This causes the DSI clocks to be\ndisabled twice: once during runtime suspend and again during system\nsuspend, resulting in a WARN message from the clock framework when\nattempting to disable already-disabled clocks.\n\n[   84.384540] clk:231:5 already disabled\n[   84.388314] WARNING: CPU: 2 PID: 531 at /drivers/clk/clk.c:1181 clk_core_disable+0xa4/0xac\n...\n[   84.579183] Call trace:\n[   84.581624]  clk_core_disable+0xa4/0xac\n[   84.585457]  clk_disable+0x30/0x4c\n[   84.588857]  cdns_dsi_suspend+0x20/0x58 [cdns_dsi]\n[   84.593651]  pm_generic_suspend+0x2c/0x44\n[   84.597661]  ti_sci_pd_suspend+0xbc/0x15c\n[   84.601670]  dpm_run_callback+0x8c/0x14c\n[   84.605588]  __device_suspend+0x1a0/0x56c\n[   84.609594]  dpm_suspend+0x17c/0x21c\n[   84.613165]  dpm_suspend_start+0xa0/0xa8\n[   84.617083]  suspend_devices_and_enter+0x12c/0x634\n[   84.621872]  pm_suspend+0x1fc/0x368\n\nTo address this issue, replace UNIVERSAL_DEV_PM_OPS() with\nRUNTIME_PM_OPS(). Bridge and panel drivers should only deal with runtime\nPM, as the DRM framework manages system-wide power transitions through\nthe bridge enable() and disable() hooks."
    }
  ],
  "lastModified": "2026-08-23T13:16:36.273",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}