Answer in brief
CVE-2026-90378 records a Unknown severity vulnerability in wifi: mt76: mt792x: Fix memory leak in SDIO TX path. 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.
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.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=b747fa343817fd322b4463dda99d28fc51e19c52 <b64d196280aff8494ba6fb387e37b18479c99b83 || >=b747fa343817fd322b4463dda99d28fc51e19c52 <9ef1351209d42b7d96604f2a13d7ea8215a24e07 || >=b747fa343817fd322b4463dda99d28fc51e19c52 <c2c7f16f2c62f79f7c381e500afa7123580742a5 || >=b747fa343817fd322b4463dda99d28fc51e19c52 <6a8000c76dc34490a2bb321ad1a5f882a2ccab7c || >=b747fa343817fd322b4463dda99d28fc51e19c52 <ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d || >=b747fa343817fd322b4463dda99d28fc51e19c52 <6a342db7a6502bc6781579145e05d4d4731786ab || >=b747fa343817fd322b4463dda99d28fc51e19c52 <808f2767d4217a5b96f674288573b9b89d432eed | b64d196280aff8494ba6fb387e37b18479c99b83, 9ef1351209d42b7d96604f2a13d7ea8215a24e07, c2c7f16f2c62f79f7c381e500afa7123580742a5, 6a8000c76dc34490a2bb321ad1a5f882a2ccab7c, ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d, 6a342db7a6502bc6781579145e05d4d4731786ab, 808f2767d4217a5b96f674288573b9b89d432eed |
| Linux/Linuxgeneric | 5.12 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 17, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt792x: Fix memory leak in SDIO TX path When tx_prepare_skb() returns an error in the SDIO TX path, the skb is not freed, leading to a memory leak. This can occur when zero-length frames (such as WNM NULL frames) are dropped to prevent potential hardware TX hangs. Fix this by properly releasing the skb with ieee80211_tx_status_ext() when tx_prepare_skb() fails.
Quoted source text, attributed separately from HOL analysis.