CVE-2021-47121 (GCVE-0-2021-47121)

Vulnerability from cvelistv5 – Published: 2024-03-15 20:14 – Updated: 2026-05-11 13:48
VLAI
Title
net: caif: fix memory leak in cfusbl_device_notify
Summary
In the Linux kernel, the following vulnerability has been resolved: net: caif: fix memory leak in cfusbl_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.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7ad65bf68d705b445ef10b77ab50dab22be185ee , < cc302e30a504e6b60a9ac8df7988646f46cd0294 (git)
Affected: 7ad65bf68d705b445ef10b77ab50dab22be185ee , < 81afc61cb6e2b553f2c5f992fa79e0ae73857141 (git)
Affected: 7ad65bf68d705b445ef10b77ab50dab22be185ee , < e8b37f5009ea7095529790f022859711e6939c76 (git)
Affected: 7ad65bf68d705b445ef10b77ab50dab22be185ee , < 9ea0ab48e755d8f29fe89eb235fb86176fdb597f (git)
Affected: 7ad65bf68d705b445ef10b77ab50dab22be185ee , < 4d94f530cd24c85aede6e72b8923f371b45d6886 (git)
Affected: 7ad65bf68d705b445ef10b77ab50dab22be185ee , < 46403c1f80b0d3f937ff9c4f5edc63bb64bc5051 (git)
Affected: 7ad65bf68d705b445ef10b77ab50dab22be185ee , < dde8686985ec24d6b00487080a906609bd613ea1 (git)
Affected: 7ad65bf68d705b445ef10b77ab50dab22be185ee , < 7f5d86669fa4d485523ddb1d212e0a2d90bd62bb (git)
Create a notification for this product.
Linux Linux Affected: 3.3
Unaffected: 0 , < 3.3 (semver)
Unaffected: 4.4.272 , ≤ 4.4.* (semver)
Unaffected: 4.9.272 , ≤ 4.9.* (semver)
Unaffected: 4.14.236 , ≤ 4.14.* (semver)
Unaffected: 4.19.194 , ≤ 4.19.* (semver)
Unaffected: 5.4.125 , ≤ 5.4.* (semver)
Unaffected: 5.10.43 , ≤ 5.10.* (semver)
Unaffected: 5.12.10 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T14:06:11+00:00",
      "cve": "CVE-2021-47121",
      "id": "CVE-2021-47121",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "156",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: caif: fix memory leak in cfusbl_device_notify",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47121.json",
      "version": "3"
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  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.