CVE-2021-47443 NFC: digital: fix possible memory leak in digital_tg_listen_mdaa()

2024-05-2206:19:36

Linux

www.cve.org

linux kernel

vulnerability

nfc

digital

memory leak

fix

cve-2021-47443

digital_tg_listen_mdaa

digital_send_cmd

params

free

6.4 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_tg_listen_mdaa()

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

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_core.c"
    ],
    "versions": [
      {
        "version": "1c7a4c24fbfd",
        "lessThan": "429054ec51e6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1c7a4c24fbfd",
        "lessThan": "a67d47e32c91",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1c7a4c24fbfd",
        "lessThan": "b7b023e6ff56",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1c7a4c24fbfd",
        "lessThan": "9881b0c86064",
        "status": "affected",
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      },
      {
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      {
        "version": "1c7a4c24fbfd",
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      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/nfc/digital_core.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"
      }
    ]
  }
]