CVE-2026-97412 (GCVE-0-2026-97412)

Vulnerability from cvelistv5 – Published: 2026-09-24 16:03 – Updated: 2026-09-25 12:43
VLAI
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 45d76f492938cdc27ddadc16e1e75103f4cfbf56 , < cc8beb70e70fc90e54efdbc1128cf7de799e6be4 (git)
Affected: 45d76f492938cdc27ddadc16e1e75103f4cfbf56 , < 9eee6b90bee3df496ed9094d9e76d5e478d72d0a (git)
Affected: 45d76f492938cdc27ddadc16e1e75103f4cfbf56 , < 6443f4f20bdae726fe01cf5946fba9742a0ffda6 (git)
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Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.12.111 , ≤ 6.12.* (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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{
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npds_core: quiesce DMA before freeing resources\n\npdsc_teardown() frees DMA buffers but does not disable bus mastering,\nleaving the device able to perform DMA after the buffers are freed.\nThis can lead to use-after-free if the device writes to freed memory.\n\nAdd pci_clear_master() to pdsc_teardown() to disable bus mastering\nbefore freeing resources, ensuring all DMA is quiesced.\n\nAdd pci_set_master() to pdsc_setup() to re-enable bus mastering,\nwhich is needed for the firmware recovery path since pdsc_teardown()\nnow disables it."
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      "providerMetadata": {
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    "datePublished": "2026-09-24T16:03:19.355Z",
    "dateReserved": "2026-09-24T14:53:16.867Z",
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          }
        ],
        "id": "CVE-2026-97412",
        "lastModified": "2026-09-25T13:17:24.740",
        "metrics": {},
        "published": "2026-09-24T17:17:18.847",
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      "cve": "CVE-2026-97412",
      "id": "CVE-2026-97412",
      "initial_release_date": "2026-09-24T23:46:41Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-97412",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-97412.json",
      "version": "2"
    }
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}



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