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CVE-2021-47600 (GCVE-0-2021-47600)

Vulnerability from cvelistv5 – Published: 2024-06-19 14:54 – Updated: 2026-08-05 08:48
VLAI
Title
dm btree remove: fix use after free in rebalance_children()
Summary
In the Linux kernel, the following vulnerability has been resolved: dm btree remove: fix use after free in rebalance_children() Move dm_tm_unlock() after dm_tm_dec().
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-20 17:58 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 , < a48f6a2bf33734ec5669ee03067dfb6c5b4818d6 (git)
Affected: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 , < 66ea642af6fd4eacb5d0271a922130fcf8700424 (git)
Affected: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 , < b03abd0aa09c05099f537cb05b8460c4298f0861 (git)
Affected: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 , < 293f957be5e39720778fb1851ced7f5fba6d51c3 (git)
Affected: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 , < 501ecd90efdc9b2edc6c28852ecd098a4adf8f00 (git)
Affected: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 , < 0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3 (git)
Affected: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 , < 607beb420b3fe23b948a9bf447d993521a02fbbb (git)
Affected: 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 , < 1b8d2789dad0005fd5e7d35dab26a8e1203fb6da (git)
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Linux Linux Affected: 3.2
Unaffected: 0 , < 3.2 (semver)
Unaffected: 4.4.296 , ≤ 4.4.* (semver)
Unaffected: 4.9.294 , ≤ 4.9.* (semver)
Unaffected: 4.14.259 , ≤ 4.14.* (semver)
Unaffected: 4.19.222 , ≤ 4.19.* (semver)
Unaffected: 5.4.168 , ≤ 5.4.* (semver)
Unaffected: 5.10.88 , ≤ 5.10.* (semver)
Unaffected: 5.15.11 , ≤ 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.