pds_core: quiesce DMA before freeing resources
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.6.160, 6.12.111, 6.18.53, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97412
- 2026-10-03 Alias added: GHSA-vh7w-pf8m-646h
- 2026-10-21 Fix available: Linux/[email protected], Linux/Linux@84fc3f30b87e06a11d1807cd385603522610ed40 · CNA
- 2026-10-21 1 new reference · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
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Sources
- CVE-2026-97412 · CVE Program
- CVE-2026-97412 · NVD
- FIRST EPSS
- GHSA-vh7w-pf8m-646h · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97412 · Red Hat security data · CC BY 4.0
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