dma-direct: return struct page from dma_direct_alloc_from_pool() (CVE-2026-89995) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89995

dma-direct: return struct page from dma_direct_alloc_from_pool()

Answer in brief

CVE-2026-89995 records a Unknown severity vulnerability in dma-direct: return struct page from dma_direct_alloc_from_pool(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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 16, 2026Updated Sep 16, 2026Source checked Sep 16, 2026First seen by HOL Sep 16, 2026Material review Sep 16, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=5b138c534fda57c2ebc1e6de72578aa1d70788a6 <c3fdb94da43ff23287f85664174c45c45e881a3f \|\| >=5b138c534fda57c2ebc1e6de72578aa1d70788a6 <408ff2d5bf555bd3f4c84a2edb95c0690bf9edc8 \|\| >=5b138c534fda57c2ebc1e6de72578aa1d70788a6 <feeb2ef775081a6c188cdd10e7a45369a07ce531 \|\| >=5b138c534fda57c2ebc1e6de72578aa1d70788a6 <94a04ad732c9f8b9554270fc4038a06737de5c22	c3fdb94da43ff23287f85664174c45c45e881a3f, 408ff2d5bf555bd3f4c84a2edb95c0690bf9edc8, feeb2ef775081a6c188cdd10e7a45369a07ce531, 94a04ad732c9f8b9554270fc4038a06737de5c22
Linux/Linuxgeneric	5.10	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to c3fdb94da43ff23287f85664174c45c45e881a3f if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 16, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: dma-direct: return struct page from dma_direct_alloc_from_pool() Commit 5b138c534fda ("dma-direct: factor out a dma_direct_alloc_from_pool helper") changed dma_direct_alloc_from_pool() to return the CPU address from dma_alloc_from_pool(). That fits dma_direct_alloc(), but dma_direct_alloc_pages() also uses the helper and expects a struct page *. Fix this by making dma_direct_alloc_from_pool() return the struct page * again, and pass the CPU address back through an out-parameter for the dma_direct_alloc() caller.

Quoted source text, attributed separately from HOL analysis.