{
  "id": "CVE-2024-40963",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-07-12T13:15:18.243",
  "lastModified": "2024-07-12T16:34:58.687",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmips: bmips: BCM6358: make sure CBR is correctly set\n\nIt was discovered that some device have CBR address set to 0 causing\nkernel panic when arch_sync_dma_for_cpu_all is called.\n\nThis was notice in situation where the system is booted from TP1 and\nBMIPS_GET_CBR() returns 0 instead of a valid address and\n!!(read_c0_brcm_cmt_local() & (1 << 31)); not failing.\n\nThe current check whether RAC flush should be disabled or not are not\nenough hence lets check if CBR is a valid address or not."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mips: bmips: BCM6358: aseg\u00farese de que CBR est\u00e9 configurado correctamente. Se descubri\u00f3 que algunos dispositivos tienen la direcci\u00f3n CBR configurada en 0, lo que provoca p\u00e1nico en el kernel cuando se llama a arch_sync_dma_for_cpu_all. Esto se not\u00f3 en una situaci\u00f3n en la que el sistema se inicia desde TP1 y BMIPS_GET_CBR() devuelve 0 en lugar de una direcci\u00f3n v\u00e1lida y !!(read_c0_brcm_cmt_local() &amp; (1 &lt;&lt; 31)); no fallar. La verificaci\u00f3n actual de si la descarga de RAC debe desactivarse o no no es suficiente, por lo tanto, verifiquemos si CBR es una direcci\u00f3n v\u00e1lida o no."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/10afe5f7d30f6fe50c2b1177549d0e04921fc373",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2cd4854ef14a487bcfb76c7980675980cad27b52",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/36d771ce6028b886e18a4a8956a5d23688e4e13d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6c0f6ccd939166f56a904c792d7fcadae43b9085",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/89167072fd249e5f23ae2f8093f87da5925cef27",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ce5cdd3b05216b704a704f466fb4c2dff3778caf",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/da895fd6da438af8d9326b8f02d715a9c76c3b5b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}