CVE-2021-47403

2024-05-2115:15:25

416baaa9-dc9f-4396-8d5f-8c081fb06d67

web.nvd.nist.gov

linux kernel

ipack

vulnerability

6.7 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.1%

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.

Affected configurations

Vulners

Node

linuxlinux_kernelRange3.18–4.4.286

linuxlinux_kernelRange4.5.0–4.9.285

linuxlinux_kernelRange4.10.0–4.14.249

linuxlinux_kernelRange4.15.0–4.19.209

linuxlinux_kernelRange4.20.0–5.4.151

linuxlinux_kernelRange5.5.0–5.10.71

linuxlinux_kernelRange5.11.0–5.14.10

linuxlinux_kernelRange5.15.0≥

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"
      }
    ]
  }
]