Vulnerability-Lookup

GHSA-GR66-4V49-M3FH

Vulnerability from github – Published: 2026-09-03 15:32 – Updated: 2026-09-03 15:32

Details

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

Revert "drm/amdgpu: fix aperture mapping leak"

devres teardown is LIFO. The aperture devres node was registered after the DRM device node, so devres_release_all() unmaps the aperture before the DRM device release callback fires amdgpu_device_fini_sw(). IP sw_fini callbacks (e.g. vcn_v4_0_sw_fini) write to fw_shared through a pointer derived from aper_base_kaddr, causing a kernel page fault on probe failure / rollback:

BUG: unable to handle page fault ... PMD 0 RIP: vcn_v4_0_sw_fini+0x7b/0x170 [amdgpu] Call Trace: amdgpu_device_fini_sw amdgpu_driver_release_kms devm_drm_dev_init_release devres_release_all

This reverts commit d871e99879cb5fd1fa798b006b4888887e63a17a.

(cherry picked from commit 336e0cd576817ac64a4b394ca2b3680029f3e37f)

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{
  "affected": [],
  "aliases": [
    "CVE-2026-80728"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-03T13:06:11Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"drm/amdgpu: fix aperture mapping leak\"\n\ndevres teardown is LIFO. The aperture devres node was registered after\nthe DRM device node, so devres_release_all() unmaps the aperture before\nthe DRM device release callback fires amdgpu_device_fini_sw(). IP\nsw_fini callbacks (e.g. vcn_v4_0_sw_fini) write to fw_shared through a\npointer derived from aper_base_kaddr, causing a kernel page fault on\nprobe failure / rollback:\n\n  BUG: unable to handle page fault ... PMD 0\n  RIP: vcn_v4_0_sw_fini+0x7b/0x170 [amdgpu]\n  Call Trace:\n    amdgpu_device_fini_sw\n    amdgpu_driver_release_kms\n    devm_drm_dev_init_release\n    devres_release_all\n\nThis reverts commit d871e99879cb5fd1fa798b006b4888887e63a17a.\n\n(cherry picked from commit 336e0cd576817ac64a4b394ca2b3680029f3e37f)",
  "id": "GHSA-gr66-4v49-m3fh",
  "modified": "2026-09-03T15:32:14Z",
  "published": "2026-09-03T15:32:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80728"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/496846a9411136eb9e86ad4f4e62d751bd1e1db5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/96d26143882f9cb47dcc1f3dd4e26d047e53ab9b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a2e326c52c4bcecc033cd3ca2733fdbe30fbf55d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b96c529cd2551b78316a4afa3237b2ed96ba03c8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-80728 (GCVE-0-2026-80728)

Vulnerability from cvelistv5 – Published: 2026-09-03 08:21 – Updated: 2026-09-03 08:21

Title

Revert "drm/amdgpu: fix aperture mapping leak"

Summary

In the Linux kernel, the following vulnerability has been resolved: Revert "drm/amdgpu: fix aperture mapping leak" devres teardown is LIFO. The aperture devres node was registered after the DRM device node, so devres_release_all() unmaps the aperture before the DRM device release callback fires amdgpu_device_fini_sw(). IP sw_fini callbacks (e.g. vcn_v4_0_sw_fini) write to fw_shared through a pointer derived from aper_base_kaddr, causing a kernel page fault on probe failure / rollback: BUG: unable to handle page fault ... PMD 0 RIP: vcn_v4_0_sw_fini+0x7b/0x170 [amdgpu] Call Trace: amdgpu_device_fini_sw amdgpu_driver_release_kms devm_drm_dev_init_release devres_release_all This reverts commit d871e99879cb5fd1fa798b006b4888887e63a17a. (cherry picked from commit 336e0cd576817ac64a4b394ca2b3680029f3e37f)

Severity

No CVSS data available.

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/7380f1bfe9d7ed3a4…
https://git.kernel.org/stable/c/96d26143882f9cb47…
https://git.kernel.org/stable/c/a2e326c52c4bcecc0…
https://git.kernel.org/stable/c/496846a9411136eb9…
https://git.kernel.org/stable/c/b96c529cd2551b783…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 96d26143882f9cb47dcc1f3dd4e26d047e53ab9b (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a2e326c52c4bcecc033cd3ca2733fdbe30fbf55d (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 496846a9411136eb9e86ad4f4e62d751bd1e1db5 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b96c529cd2551b78316a4afa3237b2ed96ba03c8 (git) Affected: 0 , < 6.6.152 (semver) Affected: 0 , < 6.12.104 (semver) Affected: 0 , < 6.18.45 (semver) Affected: 0 , < 7.1.9 (semver)
Linux	Linux	Unaffected: 6.6.152 , ≤ 6.6.* (semver) Unaffected: 6.12.104 , ≤ 6.12.* (semver) Unaffected: 6.18.45 , ≤ 6.18.* (semver) Unaffected: 7.1.9 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_device.c",
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          ],
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          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
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          ],
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          "vendor": "Linux",
          "versions": [
            {
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              "status": "unaffected",
              "version": "6.6.152",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.104",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.45",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.152",
                  "vulnerable": true
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"drm/amdgpu: fix aperture mapping leak\"\n\ndevres teardown is LIFO. The aperture devres node was registered after\nthe DRM device node, so devres_release_all() unmaps the aperture before\nthe DRM device release callback fires amdgpu_device_fini_sw(). IP\nsw_fini callbacks (e.g. vcn_v4_0_sw_fini) write to fw_shared through a\npointer derived from aper_base_kaddr, causing a kernel page fault on\nprobe failure / rollback:\n\n  BUG: unable to handle page fault ... PMD 0\n  RIP: vcn_v4_0_sw_fini+0x7b/0x170 [amdgpu]\n  Call Trace:\n    amdgpu_device_fini_sw\n    amdgpu_driver_release_kms\n    devm_drm_dev_init_release\n    devres_release_all\n\nThis reverts commit d871e99879cb5fd1fa798b006b4888887e63a17a.\n\n(cherry picked from commit 336e0cd576817ac64a4b394ca2b3680029f3e37f)"
        }
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        "dateUpdated": "2026-09-03T08:21:47.126Z",
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        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a"
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        },
        {
          "url": "https://git.kernel.org/stable/c/b96c529cd2551b78316a4afa3237b2ed96ba03c8"
        }
      ],
      "title": "Revert \"drm/amdgpu: fix aperture mapping leak\"",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80728",
    "datePublished": "2026-09-03T08:21:47.126Z",
    "dateReserved": "2026-08-26T14:34:25.789Z",
    "dateUpdated": "2026-09-03T08:21:47.126Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

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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GHSA-GR66-4V49-M3FH

CVE-2026-80728 (GCVE-0-2026-80728)

Tags

Sightings

Nomenclature