Vulnerability-Lookup

GHSA-GG86-5H5F-JRWX

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

Details

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

drm/amd/display: Fix potential memory leak in DMUB hw_init

[Why] On resume we perform DMUB hw_init which allocates memory: dm_resume->dm_dmub_hw_init->dc_dmub_srv_create->kzalloc That results in memory leak in suspend/resume scenarios.

[How] Allocate memory for the DC wrapper to DMUB only if it was not allocated before. No need to reallocate it on suspend/resume.

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-2021-47253"
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  "id": "GHSA-gg86-5h5f-jrwx",
  "modified": "2024-12-30T21:30:46Z",
  "published": "2024-05-21T15:31:40Z",
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}

CVE-2021-47253 (GCVE-0-2021-47253)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:19 – Updated: 2026-08-11 02:05

Title

drm/amd/display: Fix potential memory leak in DMUB hw_init

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix potential memory leak in DMUB hw_init [Why] On resume we perform DMUB hw_init which allocates memory: dm_resume->dm_dmub_hw_init->dc_dmub_srv_create->kzalloc That results in memory leak in suspend/resume scenarios. [How] Allocate memory for the DC wrapper to DMUB only if it was not allocated before. No need to reallocate it on suspend/resume.

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 15:39 UTC

Assigner

Linux mitre root Scorecard

References

3 references

URL	Tags
https://git.kernel.org/stable/c/9e8c2af0104631973…
https://git.kernel.org/stable/c/aa000f828e60ac15d…
https://git.kernel.org/stable/c/c5699e2d863f58221…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 8c7aea404d55dabc71df792c850aed5536ece2fd , < 9e8c2af010463197315fa54a6c17e74988b5259c (git) Affected: 8c7aea404d55dabc71df792c850aed5536ece2fd , < aa000f828e60ac15d6340f606ec4a673966f5b0b (git) Affected: 8c7aea404d55dabc71df792c850aed5536ece2fd , < c5699e2d863f58221044efdc3fa712dd32d55cde (git)
Linux	Linux	Affected: 5.6 Unaffected: 0 , < 5.6 (semver) Unaffected: 5.10.45 , ≤ 5.10.* (semver) Unaffected: 5.12.12 , ≤ 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.

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-GG86-5H5F-JRWX

CVE-2021-47253 (GCVE-0-2021-47253)

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