« Volver al listado

CVE-2026-89945

Estado: RecibidaSin puntuar—

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

ASoC: cs35l34: drain threaded IRQ before runtime suspend

cs35l34_runtime_suspend() currently switches the codec into regcache_cache_only(true), asserts reset low, and powers the device off without first quiescing the threaded IRQ registered by devm_request_threaded_irq(). That leaves a window where cs35l34_irq_thread() can still run after suspend has removed live hardware access.

A running system can reach this during runtime PM while the driver still has critical fault IRQs unmasked.

Leer descripción completaMostrar menos

If the threaded handler runs in that window, it reads volatile INT_STATUS_1..4 after cache_only has been enabled, ignores the regmap_read() failures, and can still execute the PROT_RELEASE_CTL release sequence or the BST fault power-down writes.

Use disable_irq() before entering cache_only/reset-low/power-off so any in-flight threaded handler is drained and no new IRQ thread can run while the device is suspended. Re-enable the IRQ only after runtime_resume() has restored live register access with regcache_sync(). Since probe only logs request_threaded_irq() failures and keeps going, track whether the IRQ was actually installed before disabling or re-enabling it.

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-2026-89945",
  "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": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
              "lessThan": "3be8380fb14d602cd833e5852e6d83c1e7eb1ceb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
              "lessThan": "96982734e765c13c3db02067e1d5784682085f5c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
              "lessThan": "5b063739619990d5de0c94c85d6e5be14e7cbdfe",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
              "lessThan": "f4bfd755c52dfa7584e6c9374206b71b8895c997",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
              "lessThan": "4fe8a91a9266f1321c2d31ce67940a4e8b93559e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
              "lessThan": "5a4fe7a87841af23ba80bae31b80355b16926cf4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
              "lessThan": "07a86575edc308e66b6c8873ed4a93ef3a063e55",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c1124c09e1035cabdbc17d4538ae6f922086fec9",
              "lessThan": "4105a4c0678b2808fc8046b60321b4f1cc7dae75",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "sound/soc/codecs/cs35l34.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.10"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.10",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "sound/soc/codecs/cs35l34.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-16T11:17:04.383",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/07a86575edc308e66b6c8873ed4a93ef3a063e55",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3be8380fb14d602cd833e5852e6d83c1e7eb1ceb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4105a4c0678b2808fc8046b60321b4f1cc7dae75",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4fe8a91a9266f1321c2d31ce67940a4e8b93559e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5a4fe7a87841af23ba80bae31b80355b16926cf4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5b063739619990d5de0c94c85d6e5be14e7cbdfe",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/96982734e765c13c3db02067e1d5784682085f5c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f4bfd755c52dfa7584e6c9374206b71b8895c997",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: cs35l34: drain threaded IRQ before runtime suspend\n\ncs35l34_runtime_suspend() currently switches the codec into\nregcache_cache_only(true), asserts reset low, and powers the device off\nwithout first quiescing the threaded IRQ registered by\ndevm_request_threaded_irq(). That leaves a window where\ncs35l34_irq_thread() can still run after suspend has removed live\nhardware access.\n\nA running system can reach this during runtime PM while the driver still\nhas critical fault IRQs unmasked. If the threaded handler runs in that\nwindow, it reads volatile INT_STATUS_1..4 after cache_only has been\nenabled, ignores the regmap_read() failures, and can still execute the\nPROT_RELEASE_CTL release sequence or the BST fault power-down writes.\n\nUse disable_irq() before entering cache_only/reset-low/power-off so any\nin-flight threaded handler is drained and no new IRQ thread can run\nwhile the device is suspended. Re-enable the IRQ only after\nruntime_resume() has restored live register access with regcache_sync().\nSince probe only logs request_threaded_irq() failures and keeps going,\ntrack whether the IRQ was actually installed before disabling or\nre-enabling it."
    }
  ],
  "lastModified": "2026-09-16T11:17:04.383",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}