Vulnerability-Lookup

GHSA-76PR-H99M-Q4FJ

Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2025-05-12 21:30

Details

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

binder: make sure fd closes complete

During BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object cleanup may close 1 or more fds. The close operations are completed using the task work mechanism -- which means the thread needs to return to userspace or the file object may never be dereferenced -- which can lead to hung processes.

Force the binder thread back to userspace if an fd is closed during BC_FREE_BUFFER handling.

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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  "affected": [],
  "aliases": [
    "CVE-2021-47360"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-252"
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    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:22Z",
    "severity": "MODERATE"
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  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: make sure fd closes complete\n\nDuring BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object\ncleanup may close 1 or more fds. The close operations are\ncompleted using the task work mechanism -- which means the thread\nneeds to return to userspace or the file object may never be\ndereferenced -- which can lead to hung processes.\n\nForce the binder thread back to userspace if an fd is closed during\nBC_FREE_BUFFER handling.",
  "id": "GHSA-76pr-h99m-q4fj",
  "modified": "2025-05-12T21:30:56Z",
  "published": "2024-05-21T15:31:44Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47360"
    },
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      "url": "https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d"
    },
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    },
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      "url": "https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621"
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      "type": "CVSS_V3"
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  ]
}

CVE-2021-47360 (GCVE-0-2021-47360)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:03 – Updated: 2026-05-23 15:19

Title

binder: make sure fd closes complete

Summary

In the Linux kernel, the following vulnerability has been resolved: binder: make sure fd closes complete During BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object cleanup may close 1 or more fds. The close operations are completed using the task work mechanism -- which means the thread needs to return to userspace or the file object may never be dereferenced -- which can lead to hung processes. Force the binder thread back to userspace if an fd is closed during BC_FREE_BUFFER handling.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-17 17:37 UTC

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/aa2c274c279ff365a…
https://git.kernel.org/stable/c/d5b0473707fa53b03…
https://git.kernel.org/stable/c/b95483d8d94b41fa3…
https://git.kernel.org/stable/c/5fdb55c1ac9585eb2…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 80cd795630d6526ba729a089a435bf74a57af927 , < aa2c274c279ff365a06a4cba263f04965895166e (git) Affected: 80cd795630d6526ba729a089a435bf74a57af927 , < d5b0473707fa53b03a5db0256ce62b2874bddbc7 (git) Affected: 80cd795630d6526ba729a089a435bf74a57af927 , < b95483d8d94b41fa31a84c1d86710b7907a37621 (git) Affected: 80cd795630d6526ba729a089a435bf74a57af927 , < 5fdb55c1ac9585eb23bb2541d5819224429e103d (git) Affected: 27564d8d5d12d2ff197055346069c6bdbe08a8c2 (git) Affected: 4.20.1 , < 4.21 (semver)
Linux	Linux	Affected: 5.0 Unaffected: 0 , < 5.0 (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)

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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.

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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GHSA-76PR-H99M-Q4FJ

CVE-2021-47360 (GCVE-0-2021-47360)

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