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cvelistLinuxCVELIST:CVE-2021-47403
HistoryMay 21, 2024 - 3:03 p.m.

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

2024-05-2115:03:57
Linux
www.cve.org
linux kernel
ipack
ipoctal
module reference leak

6.4 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.1%

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.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/ipack/devices/ipoctal.c"
    ],
    "versions": [
      {
        "version": "82a82340bab6",
        "lessThan": "31398849b84e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "82a82340bab6",
        "lessThan": "c0adb5a947de",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "82a82340bab6",
        "lessThan": "dde4c1429b97",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "82a82340bab6",
        "lessThan": "9c5b77a7ffc9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "82a82340bab6",
        "lessThan": "3253c87e1e5b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "82a82340bab6",
        "lessThan": "7cea84867847",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "82a82340bab6",
        "lessThan": "811178f296b1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "82a82340bab6",
        "lessThan": "bb8a4fcb2136",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/ipack/devices/ipoctal.c"
    ],
    "versions": [
      {
        "version": "3.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.18",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.4.286",
        "lessThanOrEqual": "4.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.9.285",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.249",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.209",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.151",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.71",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.14.10",
        "lessThanOrEqual": "5.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

6.4 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.1%