CVE-2021-47600 (GCVE-0-2021-47600)
Vulnerability from cvelistv5 – Published: 2024-06-19 14:54 – Updated: 2026-08-05 08:48
VLAI
EPSS
VEX
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)
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
8 references
Impacted products
2 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) |
guessed | |
| 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) |
guessed |
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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