CVE-2021-47122

2024-03-1521:15:07

Linux

web.nvd.nist.gov

cve-2021-47122

linux kernel

net

caif

memory leak

security vulnerability

AI Score

6.5

Confidence

Low

EPSS

Percentile

13.0%

JSON

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

net: caif: fix memory leak in caif_device_notify

In case of caif_enroll_dev() fail, allocated
link_support won’t be assigned to the corresponding
structure. So simply free allocated pointer in case
of error

Affected configurations

Vulners

Node

linuxlinux_kernelRange3.3–4.4.272

linuxlinux_kernelRange4.5.0–4.9.272

linuxlinux_kernelRange4.10.0–4.14.236

linuxlinux_kernelRange4.15.0–4.19.194

linuxlinux_kernelRange4.20.0–5.4.125

linuxlinux_kernelRange5.5.0–5.10.43

linuxlinux_kernelRange5.11.0–5.12.10

linuxlinux_kernelRange5.13.0≥

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/caif/caif_dev.c"
    ],
    "versions": [
      {
        "version": "7c18d2205ea7",
        "lessThan": "b042e2b20395",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7c18d2205ea7",
        "lessThan": "9348c1f10932",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7c18d2205ea7",
        "lessThan": "4bca2034b41c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7c18d2205ea7",
        "lessThan": "3be863c11cab",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7c18d2205ea7",
        "lessThan": "f52f4fd67264",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7c18d2205ea7",
        "lessThan": "af2806345a37",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7c18d2205ea7",
        "lessThan": "6a0e317f6109",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7c18d2205ea7",
        "lessThan": "b53558a950a8",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/caif/caif_dev.c"
    ],
    "versions": [
      {
        "version": "3.3",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.3",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.4.272",
        "lessThanOrEqual": "4.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.9.272",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.236",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.194",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.125",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.43",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.12.10",
        "lessThanOrEqual": "5.12.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.13",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]