{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "060d77b9c04acd7aef60790398a53f731db8c8fe"
            },
            {
              "fixed": "8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce"
            },
            {
              "fixed": "e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c"
            },
            {
              "fixed": "be387230dc22d870afd0e5d35912b07c2bc323bd"
            },
            {
              "fixed": "4cc54bdd54b337e77115be5b55577d1c58608eae"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.17"
            },
            {
              "fixed": "6.12.93"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.35"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64001.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: oss: Fix setup list UAF on proc write error\n\nsnd_pcm_oss_proc_write() links a newly allocated setup entry into the\nOSS setup list before duplicating the task name. If the task-name\nallocation fails, the error path frees the already linked entry and\nleaves setup_list pointing at freed memory.\n\nA later OSS device open can then walk the stale list entry in\nsnd_pcm_oss_look_for_setup() and dereference freed memory.\n\nAllocate the task name and initialize the setup entry before publishing\nthe entry on setup_list. Also fetch the initial proc read iterator only\nafter taking setup_mutex, so all setup_list traversal follows the same\nlist lifetime rules.",
  "id": "CVE-2026-64001",
  "modified": "2026-07-21T03:41:56.187609530Z",
  "published": "2026-07-19T14:56:18.816Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4cc54bdd54b337e77115be5b55577d1c58608eae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/be387230dc22d870afd0e5d35912b07c2bc323bd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64001.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64001"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "ALSA: pcm: oss: Fix setup list UAF on proc write error"
}