FKIE_CVE-2022-50672

Vulnerability from fkie_nvd - Published: 2025-12-09 16:17 - Updated: 2025-12-09 18:37
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mailbox: zynq-ipi: fix error handling while device_register() fails If device_register() fails, it has two issues: 1. The name allocated by dev_set_name() is leaked. 2. The parent of device is not NULL, device_unregister() is called in zynqmp_ipi_free_mboxes(), it will lead a kernel crash because of removing not added device. Call put_device() to give up the reference, so the name is freed in kobject_cleanup(). Add device registered check in zynqmp_ipi_free_mboxes() to avoid null-ptr-deref.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3fcf079958c00d83c51e4f250abf2c77fe9cc1b9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4f05d8e2fb3ab702c2633a74571e1b31cb579985
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a39b4de0804f9fe0ae911b359ffd4afe7d9d933b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a6792a0cdef0b1c2d77920246283a72537e60e94
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b3a5c76f61e2b380e29dfc6705854ca1ee85501d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f2d63cefc012cafe1b7651bbf3302f8bcd8bea4a
Impacted products
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: zynq-ipi: fix error handling while device_register() fails\n\nIf device_register() fails, it has two issues:\n1. The name allocated by dev_set_name() is leaked.\n2. The parent of device is not NULL, device_unregister() is called\n   in zynqmp_ipi_free_mboxes(), it will lead a kernel crash because\n   of removing not added device.\n\nCall put_device() to give up the reference, so the name is freed in\nkobject_cleanup(). Add device registered check in zynqmp_ipi_free_mboxes()\nto avoid null-ptr-deref."
    }
  ],
  "id": "CVE-2022-50672",
  "lastModified": "2025-12-09T18:37:13.640",
  "metrics": {},
  "published": "2025-12-09T16:17:19.357",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3fcf079958c00d83c51e4f250abf2c77fe9cc1b9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4f05d8e2fb3ab702c2633a74571e1b31cb579985"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a39b4de0804f9fe0ae911b359ffd4afe7d9d933b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a6792a0cdef0b1c2d77920246283a72537e60e94"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b3a5c76f61e2b380e29dfc6705854ca1ee85501d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f2d63cefc012cafe1b7651bbf3302f8bcd8bea4a"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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