CVE-2021-47372 (GCVE-0-2021-47372)
Vulnerability from cvelistv5 – Published: 2024-05-21 15:03 – Updated: 2026-05-11 13:53
VLAI
EPSS
VEX
Title
net: macb: fix use after free on rmmod
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: macb: fix use after free on rmmod
plat_dev->dev->platform_data is released by platform_device_unregister(),
use of pclk and hclk is a use-after-free. Since device unregister won't
need a clk device we adjust the function call sequence to fix this issue.
[ 31.261225] BUG: KASAN: use-after-free in macb_remove+0x77/0xc6 [macb_pci]
[ 31.275563] Freed by task 306:
[ 30.276782] platform_device_release+0x25/0x80
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:38 UTC
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
83a77e9ec4150ee4acc635638f7dedd9da523a26 , < a7d521cc726f30b8e679a6f36d04b18a8ab3c536
(git)
Affected: 83a77e9ec4150ee4acc635638f7dedd9da523a26 , < 46670fb832ee80943715df618632ca13c2e96f2b (git) Affected: 83a77e9ec4150ee4acc635638f7dedd9da523a26 , < 1da750d1e2140ef43d64d17f301ff6f41b45541e (git) Affected: 83a77e9ec4150ee4acc635638f7dedd9da523a26 , < 7721221e87d25c9840d9ca6b986dbdc410d5ce2b (git) Affected: 83a77e9ec4150ee4acc635638f7dedd9da523a26 , < 4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5 (git) Affected: 83a77e9ec4150ee4acc635638f7dedd9da523a26 , < d82d5303c4c539db86588ffb5dc5b26c3f1513e8 (git) |
guessed | |
| Linux | Linux |
Affected:
4.10
Unaffected: 0 , < 4.10 (semver) Unaffected: 4.14.249 , ≤ 4.14.* (semver) Unaffected: 4.19.209 , ≤ 4.19.* (semver) Unaffected: 5.4.150 , ≤ 5.4.* (semver) Unaffected: 5.10.70 , ≤ 5.10.* (semver) Unaffected: 5.14.9 , ≤ 5.14.* (semver) Unaffected: 5.15 , ≤ * (original_commit_for_fix) |
guessed |
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[31.261225] ERROR: KASAN: use after free en macb_remove+0x77/0xc6 [macb_pci] [31.275563] Liberado por la tarea 306: [30.276782] 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"id": "CVE-2021-47372",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "198",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: net: macb: fix use after free on rmmod",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47372.json",
"version": "3"
},
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"product_status:recommended": "657",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2021-47372",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-47372.json",
"version": "64"
},
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}
}
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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.
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.
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