CVE-2021-47442 (GCVE-0-2021-47442)

Vulnerability from cvelistv5 – Published: 2024-05-22 06:19 – Updated: 2026-05-11 13:54
VLAI
Title
NFC: digital: fix possible memory leak in digital_in_send_sdd_req()
Summary
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.
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: 2c66daecc4092e6049673c281b2e6f0d5e59a94c , < 74569c78aa84f8c958f1334b465bc530906ec99a (git)
Affected: 2c66daecc4092e6049673c281b2e6f0d5e59a94c , < 88c890b0b9a1fb9fcd01c61ada515e8b636c34f9 (git)
Affected: 2c66daecc4092e6049673c281b2e6f0d5e59a94c , < fcce6e5255474ca33c27dda0cdf9bf5087278873 (git)
Affected: 2c66daecc4092e6049673c281b2e6f0d5e59a94c , < 071bdef36391958c89af5fa2172f691b31baa212 (git)
Affected: 2c66daecc4092e6049673c281b2e6f0d5e59a94c , < 2bde4aca56db9fe25405d39ddb062531493a65db (git)
Affected: 2c66daecc4092e6049673c281b2e6f0d5e59a94c , < 50cb95487c265187289810addec5093d4fed8329 (git)
Affected: 2c66daecc4092e6049673c281b2e6f0d5e59a94c , < 6432d7f1d1c3aa74cfe8f5e3afdf81b786c32e86 (git)
Affected: 2c66daecc4092e6049673c281b2e6f0d5e59a94c , < 291c932fc3692e4d211a445ba8aa35663831bac7 (git)
Create a notification for this product.
Linux Linux Affected: 3.13
Unaffected: 0 , < 3.13 (semver)
Unaffected: 4.4.290 , ≤ 4.4.* (semver)
Unaffected: 4.9.288 , ≤ 4.9.* (semver)
Unaffected: 4.14.252 , ≤ 4.14.* (semver)
Unaffected: 4.19.213 , ≤ 4.19.* (semver)
Unaffected: 5.4.155 , ≤ 5.4.* (semver)
Unaffected: 5.10.75 , ≤ 5.10.* (semver)
Unaffected: 5.14.14 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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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.