github - ghsa-qq5f-qp66-6v4x

GHSA-QQ5F-QP66-6V4X

Vulnerability from github – Published: 2024-12-28 12:30 – Updated: 2025-10-01 21:30

Details

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

drm/amdkfd: Use dynamic allocation for CU occupancy array in 'kfd_get_cu_occupancy()'

The kfd_get_cu_occupancy function previously declared a large cu_occupancy array as a local variable, which could lead to stack overflows due to excessive stack usage. This commit replaces the static array allocation with dynamic memory allocation using kcalloc, thereby reducing the stack size.

This change avoids the risk of stack overflows in kernel space, in scenarios where AMDGPU_MAX_QUEUES is large. The allocated memory is freed using kfree before the function returns to prevent memory leaks.

Fixes the below with gcc W=1: drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_process.c: In function ‘kfd_get_cu_occupancy’: drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_process.c:322:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] 322 | } | ^

Severity ?

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-56695"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-28T10:15:15Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Use dynamic allocation for CU occupancy array in \u0027kfd_get_cu_occupancy()\u0027\n\nThe `kfd_get_cu_occupancy` function previously declared a large\n`cu_occupancy` array as a local variable, which could lead to stack\noverflows due to excessive stack usage. This commit replaces the static\narray allocation with dynamic memory allocation using `kcalloc`,\nthereby reducing the stack size.\n\nThis change avoids the risk of stack overflows in kernel space,  in\nscenarios where `AMDGPU_MAX_QUEUES` is large. The  allocated memory is\nfreed using `kfree` before the function returns  to prevent memory\nleaks.\n\nFixes the below with gcc W=1:\ndrivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_process.c: In function \u2018kfd_get_cu_occupancy\u2019:\ndrivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_process.c:322:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=]\n  322 | }\n      | ^",
  "id": "GHSA-qq5f-qp66-6v4x",
  "modified": "2025-10-01T21:30:44Z",
  "published": "2024-12-28T12:30:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56695"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d9f07196389f35a3afebcf1a12c1425725caddd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/922f0e00017b09d9d47e3efac008c8b20ed546a0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-56695 (GCVE-0-2024-56695)

Vulnerability from cvelistv5 – Published: 2024-12-28 09:46 – Updated: 2025-10-01 20:07

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Use dynamic allocation for CU occupancy array in 'kfd_get_cu_occupancy()' The `kfd_get_cu_occupancy` function previously declared a large `cu_occupancy` array as a local variable, which could lead to stack overflows due to excessive stack usage. This commit replaces the static array allocation with dynamic memory allocation using `kcalloc`, thereby reducing the stack size. This change avoids the risk of stack overflows in kernel space, in scenarios where `AMDGPU_MAX_QUEUES` is large. The allocated memory is freed using `kfree` before the function returns to prevent memory leaks. Fixes the below with gcc W=1: drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_process.c: In function ‘kfd_get_cu_occupancy’: drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_process.c:322:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] 322 | } | ^

Severity ?

7.8 (High)


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

CWE

CWE-787 - Out-of-bounds Write

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/6d9f07196389f35a3…
	https://git.kernel.org/stable/c/922f0e00017b09d9d…

Impacted products

Vendor

Product

Version

Linux

Affected: 6ae9e1aba97e4cdaa31a0bfdc07497ad0e915c84 , < 6d9f07196389f35a3afebcf1a12c1425725caddd (git)
Affected: 6ae9e1aba97e4cdaa31a0bfdc07497ad0e915c84 , < 922f0e00017b09d9d47e3efac008c8b20ed546a0 (git)

Linux

Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.2 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
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            "other": {
              "content": {
                "id": "CVE-2024-56695",
                "options": [
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                    "Exploitation": "none"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:59:08.817572Z",
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              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-787",
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          "programFiles": [
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          "vendor": "Linux",
          "versions": [
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              "versionType": "semver"
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              "lessThanOrEqual": "*",
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      "cpeApplicability": [
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          "nodes": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Use dynamic allocation for CU occupancy array in \u0027kfd_get_cu_occupancy()\u0027\n\nThe `kfd_get_cu_occupancy` function previously declared a large\n`cu_occupancy` array as a local variable, which could lead to stack\noverflows due to excessive stack usage. This commit replaces the static\narray allocation with dynamic memory allocation using `kcalloc`,\nthereby reducing the stack size.\n\nThis change avoids the risk of stack overflows in kernel space,  in\nscenarios where `AMDGPU_MAX_QUEUES` is large. The  allocated memory is\nfreed using `kfree` before the function returns  to prevent memory\nleaks.\n\nFixes the below with gcc W=1:\ndrivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_process.c: In function \u2018kfd_get_cu_occupancy\u2019:\ndrivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_process.c:322:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=]\n  322 | }\n      | ^"
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    "datePublished": "2024-12-28T09:46:19.468Z",
    "dateReserved": "2024-12-27T15:00:39.850Z",
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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-QQ5F-QP66-6V4X

CVE-2024-56695 (GCVE-0-2024-56695)

Tags

Sightings

Nomenclature