CVE-2021-47538 (GCVE-0-2021-47538)

Vulnerability from cvelistv5 – Published: 2024-05-24 15:09 – Updated: 2026-05-11 13:56
VLAI?
Title
rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()
Summary
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer() Need to call rxrpc_put_local() for peer candidate before kfree() as it holds a ref to rxrpc_local. [DH: v2: Changed to abstract the peer freeing code out into a function]
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e8e51ce79c157188e209e5ea0afaf6b42dd76104 , < 913c24af2d13a3fd304462916ee98e298d56bdce (git)
Affected: 9ebeddef58c41bd700419cdcece24cf64ce32276 , < 3e70e3a72d80b16094faccbe438cd53761c3503a (git)
Affected: 9ebeddef58c41bd700419cdcece24cf64ce32276 , < 60f0b9c42cb80833a03ca57c1c8b078d716e71d1 (git)
Affected: 9ebeddef58c41bd700419cdcece24cf64ce32276 , < 9469273e616ca8f1b6e3773c5019f21b4c8d828c (git)
Affected: 9ebeddef58c41bd700419cdcece24cf64ce32276 , < beacff50edbd6c9659a6f15fc7f6126909fade29 (git)
Affected: 9b7fc03b4cdbfb668b6891967105258691c6d3b5 (git)
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Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 4.19.220 , ≤ 4.19.* (semver)
Unaffected: 5.4.164 , ≤ 5.4.* (semver)
Unaffected: 5.10.84 , ≤ 5.10.* (semver)
Unaffected: 5.15.7 , ≤ 5.15.* (semver)
Unaffected: 5.16 , ≤ * (original_commit_for_fix)
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  }
}


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Tags
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.