Vulnerability-Lookup

GHSA-F8G6-27F9-3R98

Vulnerability from github – Published: 2024-03-02 00:31 – Updated: 2024-12-12 15:31

Details

In the Linux kernel, the following vulnerability has been resolved:

uio_hv_generic: Fix a memory leak in error handling paths

If 'vmbus_establish_gpadl()' fails, the (recv|send)_gpadl will not be updated and 'hv_uio_cleanup()' in the error handling path will not be able to free the corresponding buffer.

In such a case, we need to free the buffer explicitly.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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  "aliases": [
    "CVE-2021-47071"
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  "id": "GHSA-f8g6-27f9-3r98",
  "modified": "2024-12-12T15:31:05Z",
  "published": "2024-03-02T00:31:30Z",
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CVE-2021-47071 (GCVE-0-2021-47071)

Vulnerability from cvelistv5 – Published: 2024-03-01 21:15 – Updated: 2026-05-11 13:47

Title

uio_hv_generic: Fix a memory leak in error handling paths

Summary

In the Linux kernel, the following vulnerability has been resolved: uio_hv_generic: Fix a memory leak in error handling paths If 'vmbus_establish_gpadl()' fails, the (recv|send)_gpadl will not be updated and 'hv_uio_cleanup()' in the error handling path will not be able to free the corresponding buffer. In such a case, we need to free the buffer explicitly.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-03-04 14:40 UTC

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/cdd91637d4ef33e2b…
https://git.kernel.org/stable/c/d84b5e912212b05f6…
https://git.kernel.org/stable/c/53486c467e356e06a…
https://git.kernel.org/stable/c/3ee098f96b8b6c1a9…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: cdfa835c6e5e87d145f9f632b58843de97509f2b , < cdd91637d4ef33e2be19a8e16e72e7d00c996d76 (git) Affected: cdfa835c6e5e87d145f9f632b58843de97509f2b , < d84b5e912212b05f6b5bde9f682046accfbe0354 (git) Affected: cdfa835c6e5e87d145f9f632b58843de97509f2b , < 53486c467e356e06aa37047c984fccd64d78c827 (git) Affected: cdfa835c6e5e87d145f9f632b58843de97509f2b , < 3ee098f96b8b6c1a98f7f97915f8873164e6af9d (git)
Linux	Linux	Affected: 4.20 Unaffected: 0 , < 4.20 (semver) Unaffected: 5.4.122 , ≤ 5.4.* (semver) Unaffected: 5.10.40 , ≤ 5.10.* (semver) Unaffected: 5.12.7 , ≤ 5.12.* (semver) Unaffected: 5.13 , ≤ * (original_commit_for_fix)

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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.

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.
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