github - ghsa-cc2x-949j-9v5x

GHSA-CC2X-949J-9V5X

Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2024-12-26 21:30

Details

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

drm/amd/pm: Update intermediate power state for SI

Update the current state as boot state during dpm initialization. During the subsequent initialization, set_power_state gets called to transition to the final power state. set_power_state refers to values from the current state and without current state populated, it could result in NULL pointer dereference.

For ex: on platforms where PCI speed change is supported through ACPI ATCS method, the link speed of current state needs to be queried before deciding on changing to final power state's link speed. The logic to query ATCS-support was broken on certain platforms. The issue became visible when broken ATCS-support logic got fixed with commit f9b7f3703ff9 ("drm/amdgpu/acpi: make ATPX/ATCS structures global (v2)").

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1698

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-2021-47362"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
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    "severity": "MODERATE"
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  "id": "GHSA-cc2x-949j-9v5x",
  "modified": "2024-12-26T21:30:36Z",
  "published": "2024-05-21T15:31:44Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47362"
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      "url": "https://git.kernel.org/stable/c/06a18e64256f7aecb5a27df02faa3568fcd3c105"
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CVE-2021-47362 (GCVE-0-2021-47362)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:03 – Updated: 2025-05-04 07:09

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: Update intermediate power state for SI Update the current state as boot state during dpm initialization. During the subsequent initialization, set_power_state gets called to transition to the final power state. set_power_state refers to values from the current state and without current state populated, it could result in NULL pointer dereference. For ex: on platforms where PCI speed change is supported through ACPI ATCS method, the link speed of current state needs to be queried before deciding on changing to final power state's link speed. The logic to query ATCS-support was broken on certain platforms. The issue became visible when broken ATCS-support logic got fixed with commit f9b7f3703ff9 ("drm/amdgpu/acpi: make ATPX/ATCS structures global (v2)"). Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1698

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/68d4fbe6220cd1f3d…
	https://git.kernel.org/stable/c/06a18e64256f7aecb…
	https://git.kernel.org/stable/c/ab39d3cef526ba09c…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 68d4fbe6220cd1f3d07cab0a4901e62f8c12cc68 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 06a18e64256f7aecb5a27df02faa3568fcd3c105 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ab39d3cef526ba09c4c6923b4cd7e6ec1c5d4faa (git)

Linux

Unaffected: 5.10.70 , ≤ 5.10.* (semver)
Unaffected: 5.14.9 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-CC2X-949J-9V5X

CVE-2021-47362 (GCVE-0-2021-47362)

Tags

Sightings

Nomenclature