{
  "id": "CVE-2022-49083",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-02-26T07:00:45.643",
  "lastModified": "2025-02-26T07:00:45.643",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/omap: Fix regression in probe for NULL pointer dereference\n\nCommit 3f6634d997db (\"iommu: Use right way to retrieve iommu_ops\") started\ntriggering a NULL pointer dereference for some omap variants:\n\n__iommu_probe_device from probe_iommu_group+0x2c/0x38\nprobe_iommu_group from bus_for_each_dev+0x74/0xbc\nbus_for_each_dev from bus_iommu_probe+0x34/0x2e8\nbus_iommu_probe from bus_set_iommu+0x80/0xc8\nbus_set_iommu from omap_iommu_init+0x88/0xcc\nomap_iommu_init from do_one_initcall+0x44/0x24\n\nThis is caused by omap iommu probe returning 0 instead of ERR_PTR(-ENODEV)\nas noted by Jason Gunthorpe <jgg@ziepe.ca>.\n\nLooks like the regression already happened with an earlier commit\n6785eb9105e3 (\"iommu/omap: Convert to probe/release_device() call-backs\")\nthat changed the function return type and missed converting one place."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iommu/omap: Se corrige la regresi\u00f3n en la sonda para la desreferencia de puntero NULL. el commit 3f6634d997db (\"iommu: Use la forma correcta de recuperar iommu_ops\") comenz\u00f3 a activar una desreferencia de puntero NULL para algunas variantes de omap: __iommu_probe_device de probe_iommu_group+0x2c/0x38 probe_iommu_group de bus_for_each_dev+0x74/0xbc bus_for_each_dev de bus_iommu_probe+0x34/0x2e8 bus_iommu_probe de bus_set_iommu+0x80/0xc8 bus_set_iommu de omap_iommu_init+0x88/0xcc omap_iommu_init de do_one_initcall+0x44/0x24 Esto se debe a que la sonda omap iommu devuelve 0 en lugar de ERR_PTR(-ENODEV), como lo se\u00f1al\u00f3 Jason Gunthorpe . Parece que la regresi\u00f3n ya ocurri\u00f3 con una confirmaci\u00f3n anterior 6785eb9105e3 (\"iommu/omap: Convertir a devoluciones de llamada de probe/release_device()\") que cambi\u00f3 el tipo de retorno de la funci\u00f3n y no realiz\u00f3 la conversi\u00f3n en un lugar."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1d89f2b9eadbcf3ce93c6d7238f68299a1f84968",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/47e239117bd97c8556f9187af7a9a7938db4e021",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/71ff461c3f41f6465434b9e980c01782763e7ad8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bd905fed87ce01ac010011bb8f44ed0140116ceb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ea518578aa8a9a0280605b53cc33f707e10c8178",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}