pds_core: quiesce DMA before freeing resources

Answer in brief

CVE-2026-97412 records a Unknown severity vulnerability in pds_core: quiesce DMA before freeing resources. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 24, 2026Updated Sep 24, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 24, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cc8beb70e70fc90e54efdbc1128cf7de799e6be4 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9eee6b90bee3df496ed9094d9e76d5e478d72d0a \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6443f4f20bdae726fe01cf5946fba9742a0ffda6 \|\| >=0 <6.12.111 \|\| >=0 <6.18.53	cc8beb70e70fc90e54efdbc1128cf7de799e6be4, 9eee6b90bee3df496ed9094d9e76d5e478d72d0a, 6443f4f20bdae726fe01cf5946fba9742a0ffda6, 6.12.111, 6.18.53

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux.
Review the reported fix. Update Linux/Linux to cc8beb70e70fc90e54efdbc1128cf7de799e6be4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.