CVE-2021-47403 ipack: ipoctal: fix module reference leak

2024-05-2115:03:57

Linux

github.com

cve-2021-47403

ipack

ipoctal

module reference leak

linux kernel

tty driver data

AI Score

6.8

Confidence

Low

EPSS

Percentile

13.0%

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

In the Linux kernel, the following vulnerability has been resolved:

ipack: ipoctal: fix module reference leak

A reference to the carrier module was taken on every open but was only
released once when the final reference to the tty struct was dropped.

Fix this by taking the module reference and initialising the tty driver
data when installing the tty.

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
    ],
    "vendor": "linux",
    "product": "linux_kernel",
    "versions": [
      {
        "status": "affected",
        "version": "82a82340bab6"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
      "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
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    "vendor": "linux",
    "product": "linux_kernel",
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      {
        "status": "affected",
        "version": "3.18"
      }
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    "defaultStatus": "unknown"
  },
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    ],
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      {
        "status": "unaffected",
        "version": "0"
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    "defaultStatus": "unknown"
  },
  {
    "cpes": [
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    ],
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      {
        "status": "unaffected",
        "version": "4.4.286"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
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    "vendor": "linux",
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        "status": "unaffected",
        "version": "4.9.285"
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  {
    "cpes": [
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    ],
    "vendor": "linux",
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        "version": "4.14.249"
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        "status": "unaffected",
        "version": "\t4.19.209"
      }
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    "defaultStatus": "unknown"
  },
  {
    "cpes": [
      "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
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    "vendor": "linux",
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        "status": "unaffected",
        "version": "5.4.151"
      }
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    "defaultStatus": "unknown"
  },
  {
    "cpes": [
      "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
    ],
    "vendor": "linux",
    "product": "linux_kernel",
    "versions": [
      {
        "status": "unaffected",
        "version": "5.10.71"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
      "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
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    "vendor": "linux",
    "product": "linux_kernel",
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        "status": "unaffected",
        "version": "5.14.10"
      }
    ],
    "defaultStatus": "unknown"
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  {
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        "version": "5.15"
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    ],
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  }
]