{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "6ae9e1aba97e4cdaa31a0bfdc07497ad0e915c84"
            },
            {
              "fixed": "6d9f07196389f35a3afebcf1a12c1425725caddd"
            },
            {
              "fixed": "922f0e00017b09d9d47e3efac008c8b20ed546a0"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56695.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Use dynamic allocation for CU occupancy array in 'kfd_get_cu_occupancy()'\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 ‘kfd_get_cu_occupancy’:\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": "CVE-2024-56695",
  "modified": "2026-04-01T23:09:30.286494684Z",
  "published": "2024-12-28T09:46:19.468Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d9f07196389f35a3afebcf1a12c1425725caddd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/922f0e00017b09d9d47e3efac008c8b20ed546a0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56695.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56695"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "drm/amdkfd: Use dynamic allocation for CU occupancy array in 'kfd_get_cu_occupancy()'"
}