pds_core: quiesce DMA before freeing resources

{
  "id": "434b382fd16e9bcec9eecffcb4bbaf0b046d3ac6ac4df4abc267ab9c012e9b04",
  "url": "https://osv.dev/vulnerability/CVE-2026-97412",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "pds_core: quiesce DMA before freeing resources",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: pds_core: quiesce DMA before freeing resources pdsc_teardown() frees DMA buffers but does not disable bus mastering, leaving the device able to perform DMA after the buffers are freed. This can lead to use-after-free if the device writes to freed memory. Add pci_clear_master() to pdsc_teardown() to disable bus mastering before freeing resources, ensuring all DMA is quiesced. Add pci_set_master() to pdsc_setup() to re-enable bus mastering, which is needed for the firmware recovery path since pdsc_teardown() now disables it.",
    "evidence": "osv:CVE-2026-97412",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.160",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.111",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.53",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-97412",
      "aliases": [
        "CVE-2026-97412"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "45d76f492938cdc27ddadc16e1e75103f4cfbf56"
                },
                {
                  "fixed": "84fc3f30b87e06a11d1807cd385603522610ed40"
                },
                {
                  "fixed": "cc8beb70e70fc90e54efdbc1128cf7de799e6be4"
                },
                {
                  "fixed": "9eee6b90bee3df496ed9094d9e76d5e478d72d0a"
                },
                {
                  "fixed": "6443f4f20bdae726fe01cf5946fba9742a0ffda6"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97412.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.4.0"
                },
                {
                  "fixed": "6.6.160"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.111"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.53"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97412.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.508355200Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/6443f4f20bdae726fe01cf5946fba9742a0ffda6",
        "https://git.kernel.org/stable/c/84fc3f30b87e06a11d1807cd385603522610ed40",
        "https://git.kernel.org/stable/c/9eee6b90bee3df496ed9094d9e76d5e478d72d0a",
        "https://git.kernel.org/stable/c/cc8beb70e70fc90e54efdbc1128cf7de799e6be4",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97412.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-97412",
        "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/2026/97xxx/CVE-2026-97412.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-97412",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 496398,
  "published_at": "2026-09-24T16:03:19.355+00:00"
}