drm/tests: shmem: Hold reservation lock around vmap/vunmap

{
  "id": "1f4403b11e9cbd14ded57694f9e8aeb8b8ddfe48b16713277ef4929378a39241",
  "url": "https://osv.dev/vulnerability/CVE-2025-71301",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/tests: shmem: Hold reservation lock around vmap/vunmap",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/tests: shmem: Hold reservation lock around vmap/vunmap Acquire and release the GEM object's reservation lock around vmap and vunmap operations. The tests use vmap_locked, which led to errors such as show below. [ 122.292030] WARNING: CPU: 3 PID: 1413 at drivers/gpu/drm/drm_gem_shmem_helper.c:390 drm_gem_shmem_vmap_locked+0x3a3/0x6f0 [ 122.468066] WARNING: CPU: 3 PID: 1413 at drivers/gpu/drm/drm_gem_shmem_helper.c:293 drm_gem_shmem_pin_locked+0x1fe/0x350 [ 122.563504] WARNING: CPU: 3 PID: 1413 at drivers/gpu/drm/drm_gem_shmem_helper.c:234 drm_gem_shmem_get_pages_locked+0x23c/0x370 [ 122.662248] WARNING: CPU: 2 PID: 1413 at drivers/gpu/drm/drm_gem_shmem_helper.c:452 drm_gem_shmem_vunmap_locked+0x101/0x330 Only export the new vmap/vunmap helpers for Kunit tests. These are not interfaces for regular drivers.",
    "evidence": "osv:CVE-2025-71301",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.16",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.19.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-71301",
      "aliases": [
        "CVE-2025-71301"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "954907f7147dc43e0d1cd4d430c21d143d5fdf55"
                },
                {
                  "fixed": "6b953d92f2f29e74b125617c6f00300fa1bed97e"
                },
                {
                  "fixed": "e7b7022f11d3cf281c726117478696b83681bf11"
                },
                {
                  "fixed": "cda83b099f117f2a28a77bf467af934cb39e49cf"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71301.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.16.0"
                },
                {
                  "fixed": "6.18.16"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "6.19.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71301.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:43.898449031Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/6b953d92f2f29e74b125617c6f00300fa1bed97e",
        "https://git.kernel.org/stable/c/cda83b099f117f2a28a77bf467af934cb39e49cf",
        "https://git.kernel.org/stable/c/e7b7022f11d3cf281c726117478696b83681bf11",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71301.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-71301",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71301.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-71301",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 511615,
  "published_at": "2026-05-08T13:15:22.1+00:00"
}