{
  "id": "CVE-2024-27002",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-05-01T06:15:18.437",
  "lastModified": "2024-05-13T08:15:11.473",
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: mediatek: Do a runtime PM get on controllers during probe\n\nmt8183-mfgcfg has a mutual dependency with genpd during the probing\nstage, which leads to a deadlock in the following call stack:\n\nCPU0:  genpd_lock --> clk_prepare_lock\ngenpd_power_off_work_fn()\n genpd_lock()\n generic_pm_domain::power_off()\n    clk_unprepare()\n      clk_prepare_lock()\n\nCPU1: clk_prepare_lock --> genpd_lock\nclk_register()\n  __clk_core_init()\n    clk_prepare_lock()\n    clk_pm_runtime_get()\n      genpd_lock()\n\nDo a runtime PM get at the probe function to make sure clk_register()\nwon't acquire the genpd lock. Instead of only modifying mt8183-mfgcfg,\ndo this on all mediatek clock controller probings because we don't\nbelieve this would cause any regression.\n\nVerified on MT8183 and MT8192 Chromebooks."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: clk: mediatek: realice un PM en tiempo de ejecuci\u00f3n en los controladores durante la prueba mt8183-mfgcfg tiene una dependencia mutua con genpd durante la etapa de prueba, lo que conduce a un punto muerto en la siguiente pila de llamadas: CPU0: genpd_lock --> clk_prepare_lock genpd_power_off_work_fn() genpd_lock() generic_pm_domain::power_off() clk_unprepare() clk_prepare_lock() CPU1: clk_prepare_lock --> genpd_lock clk_register() __clk_core_init() clk_prepare_lock() clk_pm_runtime_get() genpd_lock() Hacer un tiempo de ejecuci\u00f3n PM acceda a la funci\u00f3n de sonda para asegurarse de que clk_register() no adquiera el bloqueo genpd. En lugar de modificar \u00fanicamente mt8183-mfgcfg, haga esto en todas las pruebas del controlador de reloj mediatek porque no creemos que esto cause ninguna regresi\u00f3n. Verificado en Chromebooks MT8183 y MT8192."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/165d226472575b213dd90dfda19d1605dd7c19a8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2f7b1d8b5505efb0057cd1ab85fca206063ea4c3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b62ed25feb342eab052822eff0c554873799a4f5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c0dcd5c072e2a3fff886f673e6a5d9bf8090c4cc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}