wifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req() (CVE-2026-53102) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-53102

wifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req()

Answer in brief

CVE-2026-53102 records a Unknown severity vulnerability in wifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req(). 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 Jun 24, 2026Updated Sep 7, 2026Source checked Sep 7, 2026First seen by HOL Jun 24, 2026Material review Sep 7, 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	>=6683d988089ce0e80bd859a9493333b6b272420e <7de35b99503012e57bec027e98ed53f881518b5b \|\| >=6683d988089ce0e80bd859a9493333b6b272420e <8527ac1bce87aaabde6755e8e6eb2a9f439d1292 \|\| >=6683d988089ce0e80bd859a9493333b6b272420e <eb466406d2094deefadc2cd6ddb4f6eeb086d1b4 \|\| >=6683d988089ce0e80bd859a9493333b6b272420e <c41075ce8cf05ed8c0e7b7efef000dce548ffc42	7de35b99503012e57bec027e98ed53f881518b5b, 8527ac1bce87aaabde6755e8e6eb2a9f439d1292, eb466406d2094deefadc2cd6ddb4f6eeb086d1b4, c41075ce8cf05ed8c0e7b7efef000dce548ffc42
Linux/Linuxgeneric	5.18	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 7de35b99503012e57bec027e98ed53f881518b5b if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 7, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jun 24, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req() mt76_connac_mcu_alloc_sta_req() allocates an skb which is expected to be freed eventually by mt76_mcu_skb_send_msg(). However, currently if an intermediate function fails before sending, the allocated skb is leaked. Specifically, mt76_connac_mcu_sta_wed_update() and mt76_connac_mcu_sta_key_tlv() may fail, leading to an immediate memory leak in the error path. Fix this by explicitly freeing the skb in these error paths. Commit 7c0f63fe37a5 ("wifi: mt76: mt7996: fix memory leak on mt7996_mcu_sta_key_tlv error") made a similar change. Compile tested only. Issue found using a prototype static analysis tool and code review.

Quoted source text, attributed separately from HOL analysis.