dpaa2-switch: fix handling of NAPI on the remove path (CVE-2026-97434) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-97434

dpaa2-switch: fix handling of NAPI on the remove path

Answer in brief

CVE-2026-97434 records a Unknown severity vulnerability in dpaa2-switch: fix handling of NAPI on the remove path. 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 <569df157eb874cb3b50554d73b89f31599397b42 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6518f87771c8833e587bd9881346fa759651c2ae \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e23d7c8c1d4ba435c457d7ffb2669175ec819b07 \|\| >=0 <6.12.111 \|\| >=0 <6.18.53	569df157eb874cb3b50554d73b89f31599397b42, 6518f87771c8833e587bd9881346fa759651c2ae, e23d7c8c1d4ba435c457d7ffb2669175ec819b07, 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 569df157eb874cb3b50554d73b89f31599397b42 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: dpaa2-switch: fix handling of NAPI on the remove path All the NAPI instances for a DPSW device are attached to the first switch port's net_device but shared by all ports. The NAPI instances get disabled only once the last port goes down. This causes an issue on the .remove() path where each port is unregistered and freed one at a time, causing the NAPI instances to be deleted even though they are not disabled. In order to avoid this, split up the unregister_netdev() calls from the free_netdev() so that we make sure all ports go down before we attempt a deletion of NAPI instances. Also, make the netif_napi_del() explicit as it is on the .probe() path.

Quoted source text, attributed separately from HOL analysis.