{
  "id": "CVE-2022-48770",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-06-20T12:15:14.953",
  "lastModified": "2024-06-20T12:43:25.663",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()\n\ntask_pt_regs() can return NULL on powerpc for kernel threads. This is\nthen used in __bpf_get_stack() to check for user mode, resulting in a\nkernel oops. Guard against this by checking return value of\ntask_pt_regs() before trying to obtain the call chain."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: protecci\u00f3n contra el acceso a pt_regs NULL en bpf_get_task_stack() task_pt_regs() puede devolver NULL en powerpc para subprocesos del kernel. Luego, esto se usa en __bpf_get_stack() para verificar el modo de usuario, lo que genera un kernel ups. Prot\u00e9jase contra esto verificando el valor de retorno de task_pt_regs() antes de intentar obtener la cadena de llamadas."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0bcd484587b3b3092e448d27dc369e347e1810c3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b82ef4985a6d05e80f604624332430351df7b79a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b992f01e66150fc5e90be4a96f5eb8e634c8249e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ff6bdc205fd0a83bd365405d4e31fb5905826996",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}