wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement (CVE-2026-90357) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-90357

wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement

Answer in brief

CVE-2026-90357 records a Unknown severity vulnerability in wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement. 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 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 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	>=3782b69d03e714b8ff98b84c7426d8cef0e64d7c <c09d1b15ed2dc49060303b16a296b7b8b7794cbe \|\| >=3782b69d03e714b8ff98b84c7426d8cef0e64d7c <1bd5c4ed2b9045faf83315c54cd37a9b7c71b5c7 \|\| >=3782b69d03e714b8ff98b84c7426d8cef0e64d7c <cabe239e95b4eebf5b6c3654087b66ff9425bc7b \|\| >=3782b69d03e714b8ff98b84c7426d8cef0e64d7c <6bce0f1280c94af8314f895f404629da09f0788c \|\| >=3782b69d03e714b8ff98b84c7426d8cef0e64d7c <beaa42b875965dbc3e80e46970e0bfa60a94c2db \|\| >=3782b69d03e714b8ff98b84c7426d8cef0e64d7c <16a04441eab0dcd4d7126a6f66b370adbf28f96d	c09d1b15ed2dc49060303b16a296b7b8b7794cbe, 1bd5c4ed2b9045faf83315c54cd37a9b7c71b5c7, cabe239e95b4eebf5b6c3654087b66ff9425bc7b, 6bce0f1280c94af8314f895f404629da09f0788c, beaa42b875965dbc3e80e46970e0bfa60a94c2db, 16a04441eab0dcd4d7126a6f66b370adbf28f96d
Linux/Linuxgeneric	5.16	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to c09d1b15ed2dc49060303b16a296b7b8b7794cbe if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement The flow is added to dev->twt_list before sending the agreement to the firmware, but the error path leaves it linked while flowid_mask is never set. The flow slot can then be reused and memset while still on the list, corrupting twt_list, and station removal leaves a dangling entry behind that mt7915_mac_twt_sched_list_add() later walks.

Quoted source text, attributed separately from HOL analysis.