CVE-2021-47442

2024-05-2207:15:09

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

web.nvd.nist.gov

linux kernel

nfc

vulnerability

fix

memory leak

6.7 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.2%

JSON

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

NFC: digital: fix possible memory leak in digital_in_send_sdd_req()

‘skb’ is allocated in digital_in_send_sdd_req(), but not free when
digital_in_send_cmd() failed, which will cause memory leak. Fix it
by freeing ‘skb’ if digital_in_send_cmd() return failed.

Affected configurations

Vulners

Node

linuxlinux_kernelRange3.13–4.4.290

linuxlinux_kernelRange4.5.0–4.9.288

linuxlinux_kernelRange4.10.0–4.14.252

linuxlinux_kernelRange4.15.0–4.19.213

linuxlinux_kernelRange4.20.0–5.4.155

linuxlinux_kernelRange5.5.0–5.10.75

linuxlinux_kernelRange5.11.0–5.14.14

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": [
      "net/nfc/digital_technology.c"
    ],
    "versions": [
      {
        "version": "2c66daecc409",
        "lessThan": "74569c78aa84",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c66daecc409",
        "lessThan": "88c890b0b9a1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c66daecc409",
        "lessThan": "fcce6e525547",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c66daecc409",
        "lessThan": "071bdef36391",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c66daecc409",
        "lessThan": "2bde4aca56db",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c66daecc409",
        "lessThan": "50cb95487c26",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c66daecc409",
        "lessThan": "6432d7f1d1c3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c66daecc409",
        "lessThan": "291c932fc369",
        "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/nfc/digital_technology.c"
    ],
    "versions": [
      {
        "version": "3.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.13",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.4.290",
        "lessThanOrEqual": "4.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.9.288",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.252",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.213",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.155",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.75",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.14.14",
        "lessThanOrEqual": "5.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]