Unknown severity · Source severity not reportedCVE-2024-42282

net: mediatek: Fix potential NULL pointer dereference in dummy net_device handling

Answer in brief

CVE-2024-42282 records a Unknown severity vulnerability in net: mediatek: Fix potential NULL pointer dereference in dummy net_device handling. 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 Aug 17, 2024Updated Oct 3, 2026Source checked Oct 3, 2026First seen by HOL Oct 3, 2026Material review Oct 3, 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	>=d5d57501f543f48df8b76a4af59def9a894b396f <81e82340170ae82f8cc28e76c13a0069c0d47cb4 \|\| >=b209bd6d0bffb8991aba568e2d9a892c86a1a43c <af6bd5c9901b13a26eaf4d57d97a813297791596 \|\| >=b209bd6d0bffb8991aba568e2d9a892c86a1a43c <16f3a28cf5f876a7f3550d8f4c870a7b41bcfaef	81e82340170ae82f8cc28e76c13a0069c0d47cb4, af6bd5c9901b13a26eaf4d57d97a813297791596, 16f3a28cf5f876a7f3550d8f4c870a7b41bcfaef
Linux/Linuxgeneric	6.10	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 81e82340170ae82f8cc28e76c13a0069c0d47cb4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 17, 2024
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 3, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: net: mediatek: Fix potential NULL pointer dereference in dummy net_device handling Move the freeing of the dummy net_device from mtk_free_dev() to mtk_remove(). Previously, if alloc_netdev_dummy() failed in mtk_probe(), eth->dummy_dev would be NULL. The error path would then call mtk_free_dev(), which in turn called free_netdev() assuming dummy_dev was allocated (but it was not), potentially causing a NULL pointer dereference. By moving free_netdev() to mtk_remove(), we ensure it's only called when mtk_probe() has succeeded and dummy_dev is fully allocated. This addresses a potential NULL pointer dereference detected by Smatch[1].

Quoted source text, attributed separately from HOL analysis.